Vacuum Cleaner Operation Unit Design to Prevent Accidental Activation
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Solution Overview
Problem
Existing handheld vacuum cleaners lack the ability to control the intensity of suction force and often have operation switches that can be accidentally activated during use, leading to unintended power changes.
Innovation Solution
A cleaner design featuring a support frame with a first push part for turning the suction motor on/off and a second push part for adjusting suction intensity, positioned higher than the handle to prevent accidental operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a trigger switch is positioned on the handle for easy operation, then ease of operation is improved, but accidental operation occurs more frequently
Solution Approach 1:
The operation unit is moved from the handle (one-dimensional positioning) to the main body of the cleaner (spatial repositioning in another dimension). This spatial separation ensures that the operation unit is positioned higher than the longitudinal axis of the suction unit, making it inaccessible to the user's hand during normal cleaning operations, thereby preventing accidental activation while maintaining ease of intentional operation.
2Device complexity
If a single switch controls both power on/off and suction intensity, then device complexity is reduced, but functional control precision deteriorates
Solution Approach 1:
The operation unit is segmented into two distinct push parts: a first push part for power on/off control and a second push part for suction intensity adjustment. This segmentation allows independent control of each function, improving operational precision. The first push part activates the suction motor, while the second push part adjusts the suction force intensity, enabling precise functional control without requiring complex multi-switch systems.
Solution Approach 2:
The operation unit serves multiple functions through its two push parts: it can turn the suction motor on/off and adjust suction intensity levels. This multi-functional design consolidates control capabilities into a single integrated unit, maintaining simplicity while providing comprehensive control over motor operation and performance parameters.
3Ease of operation
If the operation unit is positioned on the handle for accessibility, then ease of operation is improved, but accidental activation increases
Solution Approach 1:
The operation unit is repositioned from the handle area to the main body of the cleaner, specifically positioned higher than the longitudinal axis of the suction unit. This spatial relocation in a different dimension ensures that the operation unit remains accessible for intentional user interaction while being physically inaccessible to the user's hand during normal cleaning operations, thereby eliminating accidental activation risks.
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
Enables users to control suction force while cleaning, preventing accidental power changes and enhancing user convenience by separating the functions of turning on/off and adjusting intensity through distinct push parts.
Implementation Method 1
a suction motor that generates a suction force
Data Source
AI summary
A cleaner includes: a suction motor that generates a suction force; and an operation unit that is configured to input control instruction for the suction motor.The operation unit includes: a support frame; a first push part that is rotatably seated on the support frame and allows an instruction to turn on or off the suction motor to be input when being rotated in a first direction; and a second push part that allows the intensity of the suction force of the suction motor to be adjusted when being rotated in a second direction.