Razor Blade Heating System with Integrated Battery and Switch
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing razors fail to maintain blades warm or hot throughout the shaving process, as the heat from the blades is quickly reduced due to ambient air temperature, affecting cutting efficiency.
Innovation Solution
A battery-powered onboard heating system within a disposable blade cartridge, including an ON/OFF switch and an automatic turn-off feature, allows for controlled heating of the blades and preserves battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If blades are heated just prior to shaving using hot water or hot towel, then hair softening and cutting efficiency are improved, but blade temperature is quickly reduced due to ambient air temperature
Solution Approach 1:
The patent replaces the mechanical/thermal system of external hot water or hot towel heating with an electrical heating system integrated into the blade cartridge. The heating element, powered by a battery, directly heats the blade through resistive heating, eliminating the need for external water sources and providing more sustained temperature maintenance.
Solution Approach 2:
The heating system is nested within the blade cartridge structure. The heating element is positioned in close proximity to the blade, and the battery is housed within the same cartridge assembly. This nested configuration allows the heating components to be compactly integrated into the disposable cartridge, enabling portable and self-contained blade heating without requiring external equipment.
2Temperature
If continuous heating is provided to maintain blade temperature throughout shaving, then cutting efficiency is improved, but battery power is depleted more quickly
Solution Approach 1:
The heating system operates periodically rather than continuously. The controller activates the heating element at specific intervals or in response to detected conditions (such as insertion of the cartridge into the handle), providing heating only when needed to maintain adequate blade temperature. This periodic operation significantly reduces battery power consumption compared to continuous heating.
Solution Approach 2:
The system incorporates a controller that monitors and regulates heating based on detected conditions. The controller determines when heating is necessary and activates the heating element accordingly, providing feedback-based control to optimize blade temperature maintenance while minimizing energy consumption. This intelligent control prevents unnecessary heating and extends battery life.
3Ease of operation
If heating system components are integrated into the disposable blade cartridge, then ease of use and portability are improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into the disposable blade cartridge: the cutting blades, the heating element, the battery power source, and the control circuitry are all combined within a single integrated cartridge assembly. This consolidation simplifies the overall system architecture and provides ease of use, as users simply attach the complete cartridge to the handle without separate heating devices or complex setup procedures.
Solution Approach 2:
The heating system is implemented in a disposable cartridge rather than a permanent, serviceable unit. By placing the battery and heating components in a disposable cartridge that is replaced periodically, the system avoids the complexity of rechargeable batteries, complex wiring, and maintenance requirements. The disposable nature allows for simpler, more reliable heating components without long-term durability concerns.
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
The system maintains blade temperature for improved cutting efficiency and comfort, with the automatic turn-off feature extending battery life by preventing unnecessary heating.
Implementation Method 1
an electric circuit with a battery power source for controlled direction of current flow through the one or more blades in order to heat the blades
Data Source
AI summary
A razor having a handle and a blade cartridge containing one or more blades includes an electric circuit with a battery power source for controlled direction of current flow through the one or more blades in order to heat the blades. The electric circuit further includes opposing electrically conductive contact leads, the battery power source, and an electrically conductive contactor in contact with an ON/OFF switch all housed on the blade cartridge. A housing for the battery and switch extends transversely in spaced and separated relation to the blades and defines a bridge structure over an open gap between the housing and the blades for allowing a directed stream of water flow to pass below the housing, through the gap and between the plurality of electrically conductive blades for rinsing debris from surfaces of the blades.