Cordless Hair Dryer Battery Layout for Airflow Cooling
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Solution Overview
Problem
Existing cordless hair dryers face safety issues due to battery overheating, which can cause burns to the user and damage to the device, as the battery is often placed in the handle where it can generate excessive heat.
Innovation Solution
A high-efficiency cordless hair dryer design where the power supply module is mounted at the rear side of the main body housing, and the battery is disposed in the direction of air flow, preventing battery heating and enhancing safety while using the heat to improve air heating efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the battery is disposed in the handle for convenience, then ease of operation is improved, but the battery may be overheated causing safety issues
Solution Approach 1:
The patent divides the hair dryer into distinct functional modules: the handle containing control elements and the main body housing containing the battery module. This segmentation allows the battery to be positioned in the main body housing where air flow can cool it, while the handle remains ergonomically designed for user operation. The battery module can be detachably coupled to the main body housing, providing both safety and convenience.
2Ease of operation
If the battery is disposed in the handle, then ease of operation is improved, but device damage risk increases due to heat
Solution Approach 1:
The patent extracts the battery from the handle and relocates it to the main body housing. This extraction removes the heat-generating component from the handle area, eliminating the risk of heat damage to the device structure and user contact areas. The battery is specifically positioned in the main body housing where it can be cooled by air flow passing through the device.
3Productivity
If the power consumption is increased to 1000W for drying efficiency, then productivity is improved, but the battery overheating risk increases significantly
Solution Approach 1:
The patent converts the harmful heat generated by high-power battery operation into a beneficial cooling mechanism. Air is drawn through the main body housing where it passes over the battery, absorbing heat from the battery. This same air flow then proceeds to the heating element and exits through the discharge port, effectively using the battery's own heat to pre-heat the air used for drying, thereby improving overall drying efficiency while maintaining battery safety.
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 effectively prevents battery overheating, enhancing user safety and improving the efficiency of the drying process by utilizing the heat to warm the air used for drying.
Implementation Method 1
because excessive heat may be generated from the battery
Implementation Method 2
using the heat to warm the air used for drying
Data Source
AI summary
A high-efficiency cordless hair dryer according to an exemplary embodiment of the present invention may include: a main body housing having, at a rear side thereof, an air inlet port through which air is introduced, having, at a front side thereof, a discharge port through which the air is discharged, and having an internal space in which a heating element is mounted; and a power supply module configured to supply power and detachably coupled to the rear side of the main body housing at which the air inlet port is formed, in which the power supply module is detachably coupled to the main body housing so as to be coincident with a direction of a flow of air in the main body housing.