Box-type dust collector
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing box-type dust collectors with batteries as a power source are not well-balanced when carried using a belt clip, leading to tilting during transportation or use, which degrades workability.
Innovation Solution
A box-type dust collector design with a handle positioned directly over the center of gravity and point-symmetrically about it, along with coupling portions for a shoulder belt, ensures balanced carrying and operation, incorporating a tank for dust storage, a suction unit, and a motor with a cooling fan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a battery is mounted on the housing in a circular column shape projecting outward, then the power source is provided, but the center of gravity becomes unbalanced causing tilting during transport
Solution Approach 1:
The patent applies asymmetry by strategically positioning the battery and other components (motor, fan, tank) in an asymmetric arrangement that balances the center of gravity. The battery is mounted on the housing in a specific location that compensates for the weight distribution of other components, achieving overall balance despite the asymmetric placement of individual parts.
Solution Approach 2:
The patent uses counterweight principles by positioning heavier components (such as the battery and motor) in specific locations that counterbalance each other. The handle is positioned directly over the center of gravity, and coupling portions are placed at point-symmetric positions to create counterbalancing moments that prevent tilting during transport.
2Adaptability or versatility
If the belt clip is provided on the outer surface in a different phase from the battery, then both components can be mounted, but the dust collector is not well-balanced when carried
Solution Approach 1:
The patent positions the belt clip and battery in asymmetric locations on the housing that are carefully calculated to maintain balance. The coupling portions are provided at positions that are point-symmetric about the center of gravity as viewed in plan, creating counterbalancing moments that offset the asymmetric placement of the battery and belt clip.
Solution Approach 2:
The patent considers three-dimensional positioning of components, not just two-dimensional placement. The coupling portions are positioned at specific heights and lateral locations that create a balanced spatial distribution of weight, utilizing vertical and lateral dimensions to achieve balance while maintaining adaptability for mounting.
3Device complexity
If the handle is positioned away from the center of gravity, then the structure is simpler, but the dust collector tilts during transportation
Solution Approach 1:
The patent positions the handle directly over the center of gravity of the entire dust collector, creating an equipotential position where the center of gravity aligns vertically with the handle. This positioning ensures that when the dust collector is carried, the weight is evenly distributed and no tilting occurs, achieving stability without excessive structural complexity.
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 design allows for efficient and balanced carrying and operation of the dust collector, even with a battery as the power source, enhancing workability and stability during use and transport.
Implementation Method 1
the controller is cooled with cooling air from a motor cooling fan provided on a rotary shaft of the motor
Implementation Method 2
a separation portion that separates dust from the outside air which is suctioned from the suction port
Data Source
AI summary
A box-type dust collector includes a suction unit that includes a brushless motor and an air blowing fan, a battery mount portion, to which a battery pack that serves as a power source is mountable, a suction port that suctions outside air through rotation of the air blowing fan, and a filter that separates dust from the outside air which is suctioned from the suction port. The bottom surface of a tank serves as a surface for stationary placement. A handle for carriage is provided at a position directly over the center of gravity of the entire box-type dust collector with the battery pack mounted to the battery mount portion. Coupling portions to be coupled to both ends of a shoulder belt are provided at front and rear positions that are point-symmetric about the center of gravity as viewed in plan.