Hair Dryer Side Switch for Automatic Airflow Interruption
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Solution Overview
Problem
Conventional hair dryers continue to emit heated air when placed between the knees or on a countertop, leading to undesirable air flow towards the user or surface, requiring manual deactivation.
Innovation Solution
A hair dryer with side switches that can be actuated to momentarily deactivate the device when placed between the knees or on a surface, allowing automatic interruption of airflow without needing manual shutdown.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hair dryer is placed between the knees or on a countertop to free up hands, then ease of operation is improved, but unwanted airflow towards the user or surface occurs
Solution Approach 1:
The hair dryer automatically detects when it is placed on a surface or held between knees through the side switch contact mechanism, and autonomously interrupts its own airflow without requiring user intervention. The system serves itself by using the physical act of placement as the trigger signal.
Solution Approach 2:
The invention changes the operational state of the hair dryer based on the position parameter. When the side switch is contacted (indicating a specific positional state), the system transitions from an active airflow state to an interrupted state, and can automatically resume when the position changes back.
2Object-generated harmful factors
If manual deactivation is required before placing the hair dryer down, then unwanted airflow is prevented, but ease of operation deteriorates due to additional manual steps
Solution Approach 1:
The hair dryer system automatically performs the deactivation function by detecting its placement state through the side switch, eliminating the need for manual user intervention. The system monitors its own state and autonomously controls the airflow interruption.
Solution Approach 2:
The side switch is pre-positioned on the housing so that the act of placing the hair dryer naturally activates the switch and triggers the airflow interruption before the device is fully set down, preventing unwanted airflow from occurring in the first place.
3Ease of operation
If the hair dryer remains on in non-use position, then ease of operation is improved for quick resumption, but energy consumption increases and unwanted airflow occurs
Solution Approach 1:
The hair dryer operates in periodic cycles, automatically interrupting airflow when placed down and resuming when picked up. This on-off periodic operation based on usage state reduces unnecessary energy consumption during non-use periods while maintaining readiness for quick resumption.
Data Source
AI summary
A hair dryer include a housing having a handle portion, a head portion located an upper end of the handle, and a nozzle portion extending from the head portion, and at least one side switch located on a side of the head portion or the nozzle portion. The at least one switch is actuatable to effect a momentary deactivation of the hair dryer.