Ionized Airflow in Blowers and Vacuums for Static Charge Mitigation
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Solution Overview
Problem
Handheld electric blowers and vacuums experience significant static charge buildup due to triboelectric charging, leading to user discomfort and potential damage to electronic components, particularly in low humidity environments with airborne particles.
Innovation Solution
Incorporation of an ion generator within the airflow path of the blower or vacuum to ionize the airflow, neutralizing static charges on non-conductive surfaces using a high voltage source and corona discharge elements, optionally controlled by sensors and user interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If airflow moves through non-conductive surfaces in the flow tube, then triboelectric charging occurs and static electrical charges build up, but this causes user discomfort and potential damage to electronic components
Solution Approach 1:
The patent introduces an ion generator that produces ions to neutralize the static charges generated by triboelectric charging. The harmful static electricity is converted into a beneficial neutralization process, where ions are used to cancel out the accumulated charges on non-conductive surfaces, protecting both users and electronic components while maintaining the use of non-conductive materials
Solution Approach 2:
The ion generator acts as an intermediary element between the triboelectric charging process and the non-conductive surfaces. It introduces ions into the airflow path that serve as a mediator to neutralize static charges, allowing the system to maintain non-conductive materials while eliminating their harmful electrostatic effects
2Object-affected harmful factors
If ion generator is added to neutralize static charges, then static electrical charges are reduced, but device complexity increases
Solution Approach 1:
The ion generator is integrated into the existing airflow path of the blower or vacuum device, allowing it to perform dual functions: maintaining the primary airflow function while simultaneously neutralizing static charges. This multi-functionality approach minimizes the increase in device complexity by leveraging the existing structural framework
Solution Approach 2:
The ion generator is positioned within the existing flow tube structure, nesting the static mitigation function inside the already-present airflow pathway. This nesting approach allows the ion generator to be accommodated within the existing device envelope without requiring significant additional space or structural modifications
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
Effectively reduces static electrical charges on the device housing and components, minimizing user shocks and protecting electronic devices from discharge damage.
Implementation Method 1
An ion generator of the apparatus is operable to ionize the airflow moving through the interior surface of the flow tube to reduce static electrical charges
Implementation Method 2
ionize the airflow moving through the interior surface of the flow tube to reduce static electrical charges induced within at least the flow tube
Implementation Method 3
a fan and motor operable to generate an airflow
Implementation Method 4
Handheld electric blowers and vacuums experience significant static charge buildup due to triboelectric charging
Data Source
AI summary
An apparatus may be configured as a blower, vacuum, or combination thereof. The apparatus includes a fan and motor operable to generate an airflow. A flow tube of the apparatus has an inlet end, an outlet end and an interior surface. The flow tube is coupled receive the airflow at the inlet end and deliver the airflow to the outlet end. An ion generator of the apparatus is operable to ionize the airflow moving through the interior surface of the flow tube to reduce static electrical charges induced within at least the flow tube.