Blower Handle Sensor for Single-Action User Presence Activation

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Solution Overview

Problem

Conventional blowers require multiple actions from users before operation, which can be perceived as a nuisance.

Innovation Solution

A blower with a handle-mounted sensor that detects user engagement, allowing for automatic pre-operation checks and single-action activation of the motor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional blowers require multiple actions before operation, then safety and control are improved, but ease of operation deteriorates

Engineering Contradiction:
Improvesafety and controlVSAvoidease of operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The blower performs pre-operation actions automatically when the user engages the handle. The controller executes safety checks, system diagnostics, and readiness assessments before the user activates the motor, eliminating the need for multiple manual actions while maintaining safety protocols

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The blower system performs self-checks and self-preparation through automated pre-operation sequences. The controller monitors system readiness, checks component functionality, and prepares the motor for operation without requiring additional user interventions, allowing the device to serve itself in preparation for use

Inventive Principle:
Principle #25Self-service

2Reliability

If multiple actions are required before blower operation, then operational control is improved, but time consumption increases

Engineering Contradiction:
Improveoperational controlVSAvoidtime consumption
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The controller executes pre-operation actions automatically upon handle engagement, performing safety checks and system diagnostics before motor activation. This preliminary automated preparation reduces the time users must spend on manual preparation steps while maintaining operational control

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The sensor provides real-time feedback to the controller about handle engagement status, enabling the controller to automatically initiate pre-operation sequences. This feedback mechanism allows the system to respond immediately to user presence, reducing delays associated with manual operation checks

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250386985A1Blower with user presence detection
Publication Date: 2025.12.25 QUALCOMM INC
  • US20250386985A1 patent drawing
  • US20250386985A1 patent drawing
  • US20250386985A1 patent drawing

AI summary

A blower is provided. The blower includes a main body; an air duct extending between an air inlet and an air outlet opposite the air inlet, the air duct including an air duct body; a motor for driving a fan disposed in the air duct body between the air inlet and the air outlet; a handle coupled to the air duct and including a sensor. The sensor is configured to detect an engaged state in which an operator engages the handle and a disengaged state in which the operator disengages the handle. The blower also includes a controller operably coupled to the sensor and the motor.