Bladeless Dust Removal System for Compact Laser Scanners
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Solution Overview
Problem
Compact electro-optical devices, such as laser scanners, face performance degradation and maintenance challenges due to dust accumulation, as traditional fan systems with moving blades are not suitable for their small size and require regular cleaning, and existing bladeless fan designs are not effective for these devices.
Innovation Solution
A bladeless dust removal system utilizing tubular elements with air flow induction and entrainment, allowing air to pass through and be expelled efficiently, is integrated into compact devices like laser scanners, enabling effective dust removal without the need for rotating fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fan systems with moving blades are used, then dust removal capability is improved, but device size increases and maintenance requirements increase
Solution Approach 1:
The invention extracts the harmful moving blades from the fan system, retaining only the stationary housing and air moving components. This removes the maintenance burden and reliability issues associated with moving parts while preserving the dust removal function through alternative air movement mechanisms.
Solution Approach 2:
The invention replaces the traditional mechanical rotating blade system with a stationary housing design that uses air pressure differentials and flow dynamics to achieve dust removal. This substitution eliminates moving mechanical components while maintaining or improving dust removal effectiveness.
2Reliability
If traditional fan systems with moving blades are used, then dust removal capability is improved, but maintenance requirements increase
Solution Approach 1:
The invention extracts the harmful moving blades from the fan system, retaining only the stationary housing and air moving components. This removes the maintenance burden and reliability issues associated with moving parts while preserving the dust removal function through alternative air movement mechanisms.
Solution Approach 2:
The stationary bladeless design requires no routine maintenance of moving parts. The system is inherently self-service as there are no bearings, motors, or rotating components that require lubrication, adjustment, or replacement, significantly reducing maintenance requirements.
3Volume of moving object
If existing bladeless fan designs are used, then device compactness is improved, but dust removal effectiveness deteriorates
Solution Approach 1:
The invention applies local quality by designing the stationary housing with specific geometric features and air flow channels tailored to the compact device's internal layout. The housing is configured with localized air intake and exhaust openings positioned to effectively remove dust from specific components while maintaining overall device compactness.
Solution Approach 2:
The invention changes key parameters of the air flow system, including air pressure differentials, flow velocities, and housing geometry, to optimize dust removal effectiveness in a compact form factor. By adjusting these parameters, the system achieves effective dust removal without requiring the size of traditional fan systems.
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 system effectively removes dust from compact electro-optical devices, reducing maintenance needs and ensuring continuous operation while maintaining a compact form factor, and can be adapted to fit various configurations and sizes, including portable and handheld devices.
Implementation Method 1
Air passes in and through the tubular elements causing air flow to move into a particular direction. In an exemplary embodiment, air flow occurs through the process of induction and entrainment.
Implementation Method 2
Air passes in and through the tubular elements causing air flow to move into a particular direction. In an exemplary embodiment, air flow occurs through the process of induction and entrainment.
Data Source
Figure 1~2B
Figure 3A
Figure 3B
AI summary
Bladeless dust removal systems incorporate a bladeless fan system to remove dust particles from compact devices when in operation. Tubular elements (305, 315, 404, 500) are configured in the bladeless fan system to direct air flow in a direction. As the air flows, induction and entrainment occur to increase air flow inside the compact device. An exhaust opening can be implemented, which allows air containing dust particles to exit from the compact device when the bladeless fans system is in operation.