Bidirectional Wind Pressure Sensing With Dual-Port Sensors

Solution Overview

Problem

Conventional wind pressure detecting apparatuses are unable to measure wind pressure when the direction of air flow is reversed, requiring additional installations and struggling with temperature control due to externally mounted heaters.

Innovation Solution

A bidirectional wind pressure detecting apparatus with wind pressure sensors installed at both air introduction and ejection regions of the housing, equipped with a heater and heater control unit for temperature management, allowing measurement in both flow directions and enabling easy temperature control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional wind pressure detecting apparatus with a single wind pressure sensor is installed at one port, then the device complexity is reduced and manufacturing cost is lowered, but the apparatus cannot measure wind pressure when air flow direction is reversed

Engineering Contradiction:

Improvemeasurement capability in both flow directionsVSAvoidnumber of wind pressure sensors

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The housing structure serves multiple functions: it acts as a protective enclosure, a flow direction indicator, and a mounting platform for temperature control components. The heater installed within the housing provides both temperature control and potential defrosting functionality, making the device adaptable to various operating conditions without requiring separate systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent installs wind pressure sensors at both the air introduction port and air ejection port, effectively using opposite approaches to solve the unidirectional measurement limitation. By placing sensors at both ends of the housing, the system can detect wind pressure regardless of flow direction, with at least one sensor always positioned to face the incoming air flow.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If a heater is externally mounted to control temperature, then the device complexity is reduced, but temperature control effectiveness and ease of operation deteriorate

Engineering Contradiction:

Improvetemperature control effectivenessVSAvoidinternal device structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The heater is nested within the housing structure, utilizing the internal space of the existing enclosure. This integration allows the heater to directly warm the air inside the housing without requiring external mounting structures, improving temperature control effectiveness while efficiently using the available internal volume.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The air flow itself acts as an intermediary medium that transfers heat from the heater to the wind pressure sensor. The heater warms the air, and the moving air carries this thermal energy to the sensor, ensuring effective temperature control without direct thermal contact between the heater and sensor.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Adaptability or versatility

If additional wind pressure detecting apparatuses are installed to measure reversed flow direction, then measurement capability in both directions is achieved, but device complexity and manufacturing cost increase

Engineering Contradiction:

Improvebidirectional measurement capabilityVSAvoidnumber of apparatuses

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The housing structure serves multiple functions: it acts as a protective enclosure, a flow direction indicator, and a mounting platform for temperature control components. The heater installed within the housing provides both temperature control and potential defrosting functionality, making the device adaptable to various operating conditions without requiring separate systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent installs wind pressure sensors at both the air introduction port and air ejection port, effectively using opposite approaches to solve the unidirectional measurement limitation. By placing sensors at both ends of the housing, the system can detect wind pressure regardless of flow direction, with at least one sensor always positioned to face the incoming air flow.

Inventive Principle:

Principle #13The other way round (Inversion)

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

Enables wind pressure measurement in both normal and reversed air flow directions without additional apparatuses, reducing costs and improving temperature control within the device.

Implementation Method 1

a wind pressure sensor SW configured to detect a wind pressure by turning on/off a switch SC using an operation plate D operated by a wind pressure

Methodology Applied

Scientific EffectWind pressure detection:

Implementation Method 2

a heater HM installed in the housing 110 to uniformly maintain the temperature of the wind pressure sensor SW

Methodology Applied

Scientific EffectHeating: Heating

Data Source

PatentUS8667850B2Bidirectional wind pressure detecting apparatus

Publication Date: 2014.03.11 YANG SEUNG DUK

AI summary

Provided is a measuring apparatus capable of measuring a wind pressure, and in particular, a bidirectional wind pressure detecting apparatus having wind pressure sensors installed at an air introduction port and an air ejection port, respectively, to measure a wind pressure regardless of a direction of the air.