Integrated Heating Airspeed Tube for UAV Liquid Blockage

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Solution Overview

Problem

Existing airspeed tubes on unmanned aerial vehicles are prone to liquid blockage, especially in rainy and snowy conditions, due to small air inlet holes and complex shapes, which affects their accuracy and reliability.

Innovation Solution

An integrated heating airspeed tube with a heating component embedded within the tube body, where the heating cavity vaporizes liquid instantly, preventing blockage and enhancing accuracy, and featuring a simple design with separate channels for static and dynamic pressure inlets.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If small air inlet holes are used in existing airspeed tubes, then the device complexity is reduced, but liquid blockage occurs easily in rainy and snowy weather

Engineering Contradiction:
Improvestructure complexityVSAvoidliquid blockage resistance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent changes the physical state parameter of the airspeed tube by introducing a heating component that raises the temperature of the tube body. This parameter change prevents liquid blockage by vaporizing or preventing condensation of liquid on the tube surface, thereby maintaining reliability in rainy and snowy weather without increasing structural complexity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical approach of using larger air inlet holes (which would increase complexity) with a thermal field approach. The heating component creates a thermal field around the air inlet holes that actively prevents liquid accumulation, substituting a mechanical design solution with a thermal field-based solution

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If complicated shape is used in existing airspeed tubes, then measurement precision may be improved, but manufacturing complexity increases and assembly becomes difficult

Engineering Contradiction:
Improvetransmission accuracyVSAvoidassembly ease
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The patent segments the airspeed tube into distinct functional components: the tube body with air inlet holes and the separately manufactured heating component. This segmentation allows each component to be optimized independently - the tube body for measurement precision and the heating component for ease of manufacture and assembly

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent merges the heating function with the airspeed tube structure by integrating the heating component into the tube body. This merging creates a combined structure that maintains the simple tube body shape for ease of manufacture while adding the heating function to prevent liquid blockage and maintain measurement precision

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The integrated heating structure effectively prevents liquid blockage in severe weather, improves transmission accuracy, reduces assembly costs, and enhances reliability while maintaining a simple and aesthetically pleasing design.

Implementation Method 1

the heating component and the tube body are integrally formed... the tube body is heated, so that the liquid can be vaporized instantly after contacting the tube body

Methodology Applied
Scientific EffectVaporization: Evaporation

Data Source

PatentEP3806580B1Integrated heating airspeed tube and unmanned aerial vehicle including same
Publication Date: 2024.03.13 SHANGHAI AUTOFLIGHT CO LTD
  • EP3806580B1 patent drawingFigure 1
  • EP3806580B1 patent drawingFigure 2~3
  • EP3806580B1 patent drawingFigure 4

AI summary

The present invention discloses an integrated heating airspeed tube and an unmanned aerial vehicle including the same. The integrated heating airspeed tube comprises a tube body and a heating component. The tube body is provided with a heating cavity, the heating component is located inside the heating cavity, and the heating component and the tube body are integrally formed. The unmanned aerial vehicle comprises the integrated heating airspeed tube as described above. The integrated heating airspeed tube of the present invention and the unmanned aerial vehicle including the same are heated in the tube body through the heating component, so that the heating removes liquid, effectively preventing liquid from blocking the integrated heating airspeed tube, and meeting the using requirements in severe weather. At the same time, the integrated heating structure design is higher in reliability and is not easy to cause operation failure, and saves the assembly cost. The overall appearance is relatively simple and beautiful, and the transmission accuracy is high.