Local air cleaner

Solution Overview

Problem

Conventional local air cleaning apparatuses consume high power when maintaining a clean air space continuously, and existing solutions do not effectively reduce power consumption while maintaining high cleanliness levels.

Innovation Solution

The apparatus includes a push hood with an air flow opening face and a guide that collides with an air collision face, allowing for adjustable flow velocity control through pressure and cleanliness measurement devices to optimize air flow and reduce power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the local air cleaning apparatus operates continuously to maintain high cleanliness in the work space, then the cleanliness level is maintained, but the power consumption increases

Engineering Contradiction:

Improvecleanliness levelVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic action by switching between two operational modes: a first operation mode during work hours when high cleanliness is required, and a second operation mode during non-work hours when power consumption should be reduced. The system periodically transitions between these modes based on whether work is being performed, thereby maintaining cleanliness when needed while reducing energy consumption during idle periods.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent applies dynamics by making the operational characteristics of the air cleaning apparatus changeable based on operational conditions. The system dynamically adjusts its operation between two distinct modes: full operation during work hours and reduced operation during non-work hours. This dynamic adaptation allows the system to optimize the balance between maintaining cleanliness and reducing power consumption according to actual needs.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the air flow velocity is increased to maintain high cleanliness, then the cleanliness level improves, but the power consumption increases

Engineering Contradiction:

Improvecleanliness levelVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSPower

Solution Approach 1:

The patent implements periodic action by switching between two operational modes: a first operation mode during work hours when high cleanliness is required, and a second operation mode during non-work hours when power consumption should be reduced. The system periodically transitions between these modes based on whether work is being performed, thereby maintaining cleanliness when needed while reducing energy consumption during idle periods.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent applies parameter changes by modifying the operational parameters of the air cleaning apparatus between two modes. During the first operation mode, the system operates with parameters optimized for high cleanliness (higher air flow velocity). During the second operation mode, the system changes parameters to reduce power consumption (lower air flow velocity). This parameter adjustment allows the system to adapt to different operational requirements and reduce energy consumption when full cleanliness levels are not needed.

Inventive Principle:

Principle #35Parameter changes

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

This configuration reduces power consumption while maintaining a high level of cleanliness within the clean air space by decelerating or accelerating the air flow velocity based on measured parameters, ensuring efficient operation.

Implementation Method 1

the cleaned uniform air flow blown out from the air flow opening face collides with the air collision face to flow outside the open region

Methodology Applied

Scientific EffectAir flow collision: Impact Force

Data Source

PatentUS10478874B2Local air cleaner

Publication Date: 2019.11.19 KOKEN CO LTD

AI summary

The local air cleaning apparatus 1 causes a cleaned uniform air flow blown out from an air flow opening face 23 to collide with an air collision face W to flow outside an open region, so as to cause cleanliness to be higher inside a guide 3 and inside the open region than other regions. Additionally, the apparatus 1 includes at least one of a device for measuring pressures inside the guide 3 and inside a push hood 2, a device for measuring the cleanliness inside the guide 3 or of the open region, and a device for measuring a gap area between the guide 3 and the air collision face W, and, to ensure the cleanliness from a result of the measurement, controls such that a flow velocity of the cleaned uniform air flow blown out from the air flow opening face 23 can be decelerated or accelerated.