Upright Vacuum Cleaner Battery Placement for Equal Suction Force
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Solution Overview
Problem
Existing battery-powered upright vacuum cleaners often experience unequal suction force due to the placement of batteries at the center of the cleaner head, which diverts the suction passageway and results in insufficient suction.
Innovation Solution
The vacuum cleaner design includes a pivotably connected cleaner head with a rectilinear suction passageway passing through the central portion and batteries positioned outward from the suction passageway, ensuring equal suction force across the cleaner head and improved airflow pathways.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If batteries are disposed at the center of the cleaner head in the left-right direction, then the weight of the main-body part is reduced and ease of operation is improved, but the suction force in the cleaner head becomes unequal on the left and right sides and sufficient suction force cannot be ensured
Solution Approach 1:
The suction passageway is configured to extend in the front-rear direction through the cleaner head rather than being diverted to side portions. This dimensional reorientation allows the passageway to pass centrally through the head structure, ensuring equal suction force distribution while accommodating batteries at the center in the left-right direction, thus resolving the contradiction between ease of operation and suction uniformity
2Device complexity
If batteries are disposed in the main-body part, then structural simplicity is maintained, but the weight of the manually-operable portion increases and ease of operation deteriorates
Solution Approach 1:
The vacuum cleaner is divided into two main segments: the main-body part containing the motor, dust collection chamber, and exhaust system; and the cleaner head containing the batteries and suction passageway. This segmentation allows the heavy batteries to be located in the cleaner head, reducing the weight of the manually-operable main-body part and improving ease of operation, while maintaining overall structural simplicity through clear functional separation
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 design enhances ease of operation and ensures a sufficient suction force by minimizing suction losses and maintaining balanced weight distribution, making the vacuum cleaner easier to use and more effective.
Implementation Method 1
a cleaner head (head part), which is pivotably and fluidly connected to the main-body part and suctions air when a suction force is generated by the fan and motor
Data Source
AI summary
An upright vacuum cleaner includes a main-body part (10) having a dust-collection chamber (14) fluidly connected to a motor chamber (13) via a coupling pipe (15). A fan (13f) and a motor (13m) are housed in the motor chamber. A cleaner head (20) is pivotably and fluidly connected to the main-body part and suctions air through a suction opening (23) when a suction force is generated by the fan and the motor in the motor chamber. A straight suction passageway (24) extends through a central portion of the interior of the cleaner head in plan view. One or more batteries (50) is/are disposed within the cleaner head spaced apart (outward) from the suction passageway in the plan view.