Vacuum Cleaner Hose-End Trigger Switch for Multi-Mode Suction Control
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Solution Overview
Problem
Existing vacuum cleaners lack a convenient and efficient mechanism for controlling suction airflow and switching between different operational modes, such as ON/OFF, suction motor speed, and power modes, which limits user flexibility and efficiency in cleaning tasks.
Innovation Solution
A vacuum cleaner design featuring a suction hose with a trigger-actuated switch that allows users to control the suction source, coupled with a power head and container, and a controller that receives signals from both the power head switching device and the trigger switch to manage the suction source's operation, enabling easy switching between different modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a trigger-actuated switch mechanism is added to the suction hose, then ease of operation is improved, but device complexity increases
Solution Approach 1:
A trigger mechanism is introduced as an intermediary between the user and the suction source control system. The trigger, mounted on the end housing of the suction hose, acts as a mechanical mediator that transmits user input to the switch, enabling intuitive on/off control without requiring direct interaction with the main power head controls.
Solution Approach 2:
The patent replaces complex electronic control interfaces with a simple mechanical trigger switch system. The trigger mechanism uses basic mechanical components (lever, pivot point, switch actuator) to control the suction source, eliminating the need for buttons, dials, or digital interfaces on the power head.
2Adaptability or versatility
If multiple operational modes are enabled through the trigger switch, then adaptability is improved, but device complexity increases
Solution Approach 1:
The trigger switch is designed with multiple positions (off, on, boost modes) that allow dynamic adjustment of suction source operation. The switch can be actuated in different ways (pressed, held, pulled) to change operational modes, enabling the system to adapt to various cleaning requirements without adding complex electronic controls.
Solution Approach 2:
The trigger switch serves multiple functions: it acts as an on/off switch, a mode selector, and a control for different suction levels. This single component performs what would traditionally require multiple separate controls, reducing overall system complexity while maintaining versatility.
3Ease of operation
If the trigger is positioned away from the annular wall, then ease of operation is improved, but structural stability worsens
Solution Approach 1:
The trigger is positioned at a specific location on the end housing that is optimized for user access and actuation. This local positioning places the trigger within easy reach of the user's hand when holding the vacuum, improving operability without compromising the overall structural integrity of the end housing assembly.
Solution Approach 2:
The trigger is designed as an asymmetric component with a pivot point offset from the center of the end housing. This asymmetric placement allows the trigger to be positioned away from the annular wall for better user access while maintaining structural stability through strategic placement of mounting brackets and pivot points.
Data Source
AI summary
A vacuum cleaner includes a container and a power head coupled to the container. The power head includes a suction source configured to generate a working airflow, and an exhaust outlet configured to exhaust the working airflow. The vacuum cleaner also includes a suction inlet which provides entrance of the working airflow. The suction inlet is provided on at least one of the power head or the container. The vacuum cleaner also includes a suction hose removably coupled to the suction inlet and configured to conduct the working airflow. The suction hose has a tube, an end housing coupled to the tube, a trigger mounted on the end housing, and a trigger switch configured to be actuated by the trigger. The end housing defines a distal free end of the suction hose.