An unmanned aerial vehicle magnetic attraction fixing device based on a power-off type direct current degaussing electromagnet
Patent Information
- Application Number
- CN202521665374.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-06
- Publication Date
- 2026-08-18
- Estimated Expiration
- 2035-08-06
AI Technical Summary
[0002]目前无人机磁吸固定装置多采用常通电磁铁,需持续供电维持磁力,能耗高且存在发热隐患;或采用纯永磁体结构,分离时需外力强行拔取,易损伤设备
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Figure CN224645189U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drone auxiliary equipment technology, and in particular to a magnetic fixing device for drone parking, charging or transportation. Background Technology
[0002] Currently, most magnetic attachment devices for drones use constant-current electromagnets, which require continuous power to maintain the magnetic force, resulting in high energy consumption and potential overheating; or they use pure permanent magnet structures, which require external force to forcibly remove them during separation, easily damaging the equipment. Existing technologies struggle to balance energy efficiency with the need for controllable release.
[0003] This invention provides an energy-saving, reliable, and actively release-type magnetic attraction device for drones. It achieves self-locking upon power failure and release upon power restoration through a power-off DC demagnetizing electromagnet, and improves parking stability by combining it with an anti-slip buffer structure. Utility Model Content
[0004] A magnetic attraction device for unmanned aerial vehicles (UAVs), characterized in that it includes: 1. Lamp post-shaped support base (1): The top is equipped with an installation platform and the bottom is a load-bearing base; 2. Power-off type DC demagnetizing electromagnet (2): Embedded in the top of the support base, its magnetic circuit design satisfies: - In non-energized state: Maintains the inherent magnetic attraction force of the permanent magnet (>50N) to attract metal parts of the drone; - Power-on state: The coil generates a reverse magnetic field to cancel the magnetic field of the permanent magnet, thereby achieving zero magnetic force and releasing the drone; 3. Anti-slip support pads (3): Symmetrically arranged at the bottom of the support base, made of high friction coefficient elastic material (such as silicone / rubber), with anti-slip texture on the surface, and built-in pressure trigger switch (4); 4. Control Module (5): Responds to pressure-triggered switch signals to control the on / off logic of the electromagnet: - The drone lands and presses against the foot pads → triggers a power outage → the electromagnet automatically attracts and locks in place; - Receive release command → Power on to demagnetize → Release adsorption. Beneficial effects
[0005] 1. Zero-power adsorption maintenance: Utilizing the de-energized properties of electromagnets, no power supply is required after adsorption, resulting in energy savings of >95%; 2. Wind-resistant and anti-slip: The elastic cushioning and high-friction design of the foot pads suppresses drone landing vibration and sideslip; 3. One-button release: Demagnetization is triggered by wireless commands, and the release process is free of mechanical impact; 4. Safety Redundancy: Automatically locks in case of power failure to prevent the drone from crashing due to accidental power outage. Attached Figure Description
[0006] Figure 1 : Three-dimensional view of the overall structure of the device Figure 2 Foot pad trigger adsorption control flowchart Figure 3 Schematic diagram of multi-angle adsorption Detailed Implementation
[0007] Operating procedures: 1. When the drone lands and approaches the target column, the foot pad (3) extends forward to contact the column and is pressed, triggering the pressure switch (4) to send a signal to the control module (5). 2. The control module cuts off the power supply to the electromagnet (2), and the magnetic force is instantly generated and adsorbs the metal parts of the UAV; 3. When release is required, the control module supplies power to the electromagnet via a remote control signal, and the drone takes off autonomously after demagnetization; 4. The foot pad (3) rebounds and resets, waiting for the next trigger. Example
[0008] - Electromagnet model: XC-12VDC type demagnetizing electromagnet (attractive force 80N, demagnetizing power 30W). - Foot pad material: 70° Shore A silicone, with diamond-patterned surface; - Applicable models: Wall-mounted adsorption reconnaissance drones.
Claims
1. A unmanned aerial vehicle magnetic attraction fixing device based on de-energized DC degaussing electromagnet, comprising a support base (1), a de-energized DC degaussing electromagnet (2) and a non-slip support foot pad (3), characterized in that: The power-off type direct current degaussing electromagnet (2) is a power-off type direct current degaussing electromagnet embedded at the top of the support base (1); the anti-skid support foot pad (3) is arranged at the bottom of the support base (1) and internally provided with a pressure switch (4); the device is provided with a control module (5) responding to the pressure switch (4) to realize power-off adsorption when the unmanned aerial vehicle is pressed against the foot pad and power-on release after receiving an instruction. 2. The apparatus of claim 1, wherein: The power-off type direct current degaussing electromagnet (2) generates magnetic attraction force in a non-power-on state and generates a reverse magnetic field to offset the magnetic attraction force when power is on.
3. The apparatus of claim 1, wherein: The anti-skid support foot pad (3) is provided with concave-convex anti-skid lines on the surface.
4. The apparatus of claim 1, wherein: The pressure switch (4) cuts off the power supply of the electromagnet.