Passive self-power-taking low-voltage overhead line warning lamp

By using a low-voltage overhead line warning light that draws power from its own source and utilizes the principle of electromagnetic induction, the safety hazards and power outage issues associated with existing warning lights that require mains power are resolved, enabling a flexible and rapid installation process.

CN224229898UActive Publication Date: 2026-05-12ZHONGSHAN CHENGDU ELECTRICAL ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN CHENGDU ELECTRICAL ENGINEERING CO LTD
Filing Date
2025-08-14
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing overhead line warning lights require mains power, posing safety hazards, and require power outages for installation and removal, making them unsuitable for complex and diverse installation environments.

Method used

The warning light for low-voltage overhead lines uses a self-powered design and electromagnetic induction principle. It generates an induced electromotive force through the alternating magnetic field around the line, enabling installation and removal without an external power source.

Benefits of technology

This enables flexible and rapid installation of low-voltage overhead line warning lights that do not require power source, improving installation convenience and safety, and avoiding the impact of power outages.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of overhead lines, and particularly discloses a passive self-power-taking low-voltage overhead line warning lamp which comprises a shell base. The warning panel is fixed to the front end of the shell base, and an LED light source module is embedded in the front wall of the warning panel. The circuit board is fixed to an inner cavity of the shell base and electrically connected with the LED light source module. The front end of the first semi-cylindrical shell is fixedly connected to the rear wall of the shell base in a clamped mode, the top end of the front portion of the second semi-cylindrical shell is hinged to the top end of the rear portion of the first semi-cylindrical shell, and the bottom end of the front portion of the second semi-cylindrical shell is matched with the bottom end of the rear portion of the first semi-cylindrical shell in a buckled mode. The first C-shaped iron core is fixed in the middle of an inner cavity of the first semi-cylindrical shell, the second C-shaped iron core is fixed in an inner cavity of the second semi-cylindrical shell and corresponds to the first C-shaped iron core, windings are wound on the first C-shaped iron core and the second C-shaped iron core respectively, and the winding on the first C-shaped iron core is electrically connected with the circuit board. The problem that the overhead line warning lamp is inconvenient to flexibly and quickly install is well solved.
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Description

Technical Field

[0001] This utility model relates to the field of overhead line technology, specifically a warning light for a low-voltage overhead line that draws power from a source without any external source. Background Technology

[0002] Overhead lines are widely distributed in power systems, and their safe operation has received unprecedented attention. During daily operation, overhead power lines face numerous threats. Large machinery such as cranes and transport vehicles like high-top trucks can scrape or collide with the lines for various reasons, leading to line damage, breakage, or even power outages, seriously affecting the stable operation of the system and the reliable supply of power. To prevent scraping and collisions with overhead lines, warning lights are often installed at appropriate locations along the lines to alert vehicles.

[0003] Traditionally, warning lights installed on overhead power lines are mostly powered by mains electricity. This method has many drawbacks: mains power not only poses safety hazards but also requires power outages during installation and removal, significantly impacting power supply reliability. Furthermore, existing warning devices have relatively simple installation methods, making them difficult to adapt to complex and diverse installation environments, causing considerable inconvenience in actual operation.

[0004] Therefore, there is an urgent need to develop a new type of overhead line warning light. Utility Model Content

[0005] The purpose of this utility model is to provide a low-voltage overhead line warning light that is powered without external power, in order to solve the problem that current overhead line warning lights are not easy to install flexibly and quickly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-powered low-voltage overhead line warning light, comprising a housing base; a warning panel fixed to the front end of the housing base and an LED light source module embedded in the front wall; a circuit board fixed to the inner cavity of the housing base, the circuit board being electrically connected to the LED light source module; a snap-on inductive power extraction assembly comprising a semi-cylindrical housing one whose front end is fixedly snapped to the rear wall of the housing base, a semi-cylindrical housing two whose front top end is hinged to the rear top end of the semi-cylindrical housing one and whose front bottom end is snapped to the rear bottom end of the semi-cylindrical housing one, a C-shaped iron core one fixed in the middle of the inner cavity of the semi-cylindrical housing one, and a C-shaped iron core two fixed in the inner cavity of the semi-cylindrical housing two and corresponding to the C-shaped iron core one, wherein windings are wound on the C-shaped iron core one and the C-shaped iron core two, and the windings on the C-shaped iron core one are electrically connected to the circuit board.

[0007] Preferably, an insulating bracket is fixedly installed inside the semi-cylindrical housing, and the C-shaped iron core is fixed to the middle of the front wall of the insulating bracket.

[0008] Preferably, an electric field detection module one is fixedly inserted into the front wall of the insulating bracket at a position on one side of the C-shaped iron core two, and an electric field detection module two is fixedly inserted into the inner wall of the semi-cylindrical shell one at a position directly opposite to the electric field detection module one.

[0009] Preferably, the outer edge of the front port of the housing base is provided with a rectangular frame groove, and the outer edge of the rear wall of the warning panel is provided with a rectangular frame protrusion that engages with the rectangular frame groove.

[0010] Preferably, a slot is provided on one side of the rear wall of the housing base, and an insert block is integrally formed on the front wall of the semi-cylindrical housing to be fixedly engaged with the slot.

[0011] Preferably, the rear top of the first semi-cylindrical shell is provided with a plurality of ear plates evenly distributed in the transverse direction, and a shaft extending in the transverse direction is sleeved between the ear plates. The front top of the second semi-cylindrical shell is provided with an open cylindrical part that is rotatably sleeved and matched with the shaft. The bottom of the second semi-cylindrical shell is provided with a hollow buckle plate extending forward. The rear bottom surface of the first semi-cylindrical shell is provided with a clip that is fastened and matched with the hollow buckle plate.

[0012] Preferably, the LED light source module has six high-brightness red LED beads. Alternatively, the LED light source module has one each of high-brightness yellow, green, and red LED beads, and the three LED beads flash alternately.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model relates to a self-powered low-voltage overhead line warning light, which adopts an openable structure and snap-on installation. It does not require power outages during installation and removal, has no external power supply line, and is ready to use immediately. The installation process is simple and easy, greatly improving the flexibility and convenience of overhead line warning light installation. Attached Figure Description

[0015] Figure 1 This is an exploded structural diagram of the entire utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the housing base of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the warning panel of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the semi-cylindrical shell of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the semi-cylindrical shell II of this utility model.

[0020] In the diagram: 1-Shell base; 1.1-Slot; 1.2-Rectangular frame groove;

[0021] 2-Warning panel; 2.1-LED light source module; 2.2-Rectangular frame protrusion;

[0022] 3-Circuit board;

[0023] 4-Snap-on inductive power extraction assembly; 4.1-Semi-cylindrical housing one; 4.1.1-Insertion block; 4.1.2-Ear plate; 4.1.3-Shaft; 4.2-Semi-cylindrical housing two; 4.2.1-Open cylindrical component; 4.2.2-Hollow snap plate; 4.3-Insulating bracket; 4.4-C-type iron core one; 4.5-C-type iron core two; 4.6-Electric field detection module one; 4.7-Electric field detection module two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 This utility model provides a technical solution: a self-powered low-voltage overhead line warning light, wherein the housing base 1 is integrally injection molded from waterproof, dustproof, and corrosion-resistant insulating material. A slot 1.1 is provided on one side of the rear wall of the housing base 1, and a rectangular frame groove 1.2 is provided on the outer edge of the front port.

[0026] The warning panel 2 is fixed to the front end of the housing base 1, and an LED light source module 2.1 is embedded in the front wall. The outer edge of the rear wall of the warning panel 2 has a rectangular frame protrusion 2.2 that engages with the rectangular frame groove 1.2. The LED light source module 2.1 is equipped with one yellow, one green, and one red high-brightness LED, ensuring that the three LEDs flash alternately during use. Furthermore, the warning panel 2 is connected to the housing base 1 by screws.

[0027] Circuit board 3 is fixed inside the housing base 1 and is electrically connected to LED light source module 2.1. Circuit board 3 integrates rectifier circuit, filter circuit and voltage regulator circuit.

[0028] The snap-fit ​​inductive power-generating assembly 4 includes a semi-cylindrical housing 4.1 whose front end is fixedly snapped onto the rear wall of the housing base 1; a semi-cylindrical housing 4.2 whose front top end is hinged to the rear top end of the semi-cylindrical housing 4.1 and whose front bottom end is snapped onto the rear bottom end of the semi-cylindrical housing 4.1; a C-shaped iron core 4.4 fixed in the middle of the inner cavity of the semi-cylindrical housing 4.1; and a C-shaped iron core 4.5 fixed in the inner cavity of the semi-cylindrical housing 4.2 and corresponding to the C-shaped iron core 4.4. Windings are wound on both the C-shaped iron core 4.4 and the C-shaped iron core 4.5. The windings on the C-shaped iron core 4.4 are electrically connected to the circuit board 3. An insulating bracket 4.3 is fixedly installed inside the semi-cylindrical housing 4.2, and the C-shaped iron core 4.5 is fixed to the middle of the front wall of the insulating bracket 4.3. An electric field detection module 4.6 is fixedly inserted into the front wall of the insulating bracket 4.3, located on one side of the C-shaped iron core 4.5. An electric field detection module 4.7 is fixedly inserted into the inner wall of the semi-cylindrical shell 4.1, directly opposite the electric field detection module 4.6. The front wall of the semi-cylindrical shell 4.1 has an integrally formed insert block 4.1.1 that is fixedly snapped into the slot 1.1. The rear top of the semi-cylindrical shell 4.1 has multiple ear plates 4.1.2 evenly distributed laterally, with a shaft 4.1.3 extending laterally between the ear plates 4.1.2. The front top of the semi-cylindrical shell 4.2 has an open cylindrical part 4.2.1 that is rotatably fitted into the shaft 4.1.3. The bottom of the semi-cylindrical shell 4.2 has a hollow buckle plate 4.2.2 extending forward. The rear bottom surface of the semi-cylindrical shell 4.1 has a clip that is snapped into the hollow buckle plate 4.2.2. Semi-cylindrical shell 1 4.1, semi-cylindrical shell 2 4.2 and insulating bracket 4.3 are all integrally injection molded from ASA material.

[0029] In summary, when the semi-cylindrical shell 4.1 and the semi-cylindrical shell 4.2 are hinged together, the shaft 4.1.3 can be easily inserted into the cavity of the open cylinder 4.2.1 through the opening to achieve the hinge connection between the two.

[0030] When installing the warning light on the overhead line, flip and open the semi-cylindrical housing 4.2 relative to the semi-cylindrical housing 4.1 and lock it onto the overhead line. Then close the semi-cylindrical housing 4.1 and the semi-cylindrical housing 4.2, and fasten the hollow buckle plate 4.2.2 onto the buckle head on the semi-cylindrical housing 4.1. At this time, the electric field detection module 4.6 and the electric field detection module 4.7 are locked on both sides of the overhead line, and the C-type iron core 4.4 and the C-type iron core 4.5 surround the outside of the overhead line.

[0031] Utilizing the alternating magnetic field surrounding the overhead power line, an induced electromotive force is generated in the winding coil through electromagnetic induction, supplying power to the LED chips in LED light source module 2.1. LED light source module 2.1 uses either six high-brightness red LED chips or one each of yellow, green, and red high-brightness LED chips. The rectifier circuit integrated in circuit board 3 converts the AC induced voltage into DC voltage, the filter circuit smooths the pulsating DC after rectification, and the voltage regulator circuit converts the fluctuating DC voltage into a stable voltage required by the LED chips. When using one each of yellow, green, and red high-brightness LED chips, the three LED chips in LED light source module 2.1 are controlled by a microcontroller and flash alternately after being powered on.

[0032] Electric field detection module 1 (4.6) and electric field detection module 2 (4.7) use the principle of capacitor voltage division to detect electric field, so as to play the role of monitoring the status of the power-taking device itself.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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. A self-powered low-voltage overhead line warning light, characterized in that, include: Shell base (1); Warning panel (2) is fixed to the front end of the housing base (1) and an LED light source module (2.1) is embedded in the front wall; Circuit board (3) is fixed in the inner cavity of the housing base (1), and circuit board (3) is electrically connected to the LED light source module (2.1); The snap-on inductive power-generating assembly (4) includes a semi-cylindrical housing 1 (4.1) whose front end is fixedly snapped onto the rear wall of the housing base (1), a semi-cylindrical housing 2 (4.2) whose front top end is hinged to the rear top end of the semi-cylindrical housing 1 (4.1) and whose front bottom end is snapped onto the rear bottom end of the semi-cylindrical housing 1 (4.1), a C-shaped iron core 1 (4.4) fixed in the middle of the inner cavity of the semi-cylindrical housing 1 (4.1), and a C-shaped iron core 2 (4.5) fixed in the inner cavity of the semi-cylindrical housing 2 (4.2) and corresponding to the C-shaped iron core 1 (4.4). The C-shaped iron core 1 (4.4) and the C-shaped iron core 2 (4.5) are respectively wound with windings. The windings on the C-shaped iron core 1 (4.4) are electrically connected to the circuit board (3).

2. The self-powered low-voltage overhead line warning light according to claim 1, characterized in that: An insulating bracket (4.3) is fixedly installed inside the semi-cylindrical shell (4.2), and the C-shaped iron core (4.5) is fixed to the middle of the front wall of the insulating bracket (4.3).

3. A self-powered low-voltage overhead line warning light according to claim 2, characterized in that: An electric field detection module 1 (4.6) is fixedly inserted into the front wall of the insulating bracket (4.3) at a position on one side of the C-shaped iron core 2 (4.5), and an electric field detection module 2 (4.7) is fixedly inserted into the inner wall of the semi-cylindrical shell 1 (4.1) at a position directly opposite to the electric field detection module 1 (4.6).

4. The self-powered low-voltage overhead line warning light according to claim 1, characterized in that: The outer edge of the front port of the housing base (1) is provided with a rectangular frame groove (1.2), and the outer edge of the rear wall of the warning panel (2) is provided with a rectangular frame protrusion (2.2) that engages with the rectangular frame groove (1.2).

5. A self-powered low-voltage overhead line warning light according to claim 1, characterized in that: The housing base (1) has a slot (1.1) on one side of the rear wall, and the front wall of the semi-cylindrical housing (4.1) is integrally formed with an insert (4.1.1) that is fixedly engaged with the slot (1.1).

6. A self-powered low-voltage overhead line warning light according to claim 1, characterized in that: The rear top of the first semi-cylindrical shell (4.1) is provided with a plurality of ear plates (4.1.2) evenly distributed in the transverse direction. A shaft (4.1.3) extending in the transverse direction is sleeved between the ear plates (4.1.2). The front top of the second semi-cylindrical shell (4.2) is provided with an open cylindrical part (4.2.1) that is rotatably sleeved with the shaft (4.1.3). The bottom of the second semi-cylindrical shell (4.2) is provided with a hollow buckle plate (4.2.2) extending forward. The rear bottom surface of the first semi-cylindrical shell (4.1) is provided with a clip that is fastened to the hollow buckle plate (4.2.2).

7. A self-powered low-voltage overhead line warning light according to claim 1, characterized in that: The LED light source module (2.1) is equipped with six high-brightness red LED beads.