Electric Shaver Motor Segmentation for Balanced Handling
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Solution Overview
Problem
Existing electric shaving apparatuses with integrated drive mechanisms are cumbersome and difficult to maneuver due to their weight distribution, which hinders the shaving head's ability to follow skin contours effectively, and often require complex assembly and vibration balancing.
Innovation Solution
An electric shaving apparatus with an electric motor housed outside the shaving head, utilizing two drive components and elastic connections, including leaf springs, to generate oscillatory motions for the shaving elements, allowing for balanced weight distribution and simplified assembly while minimizing vibrations and noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electric motor is integrated inside the shaving head, then the drive mechanism is compact, but the weight distribution becomes unbalanced and handling becomes difficult
Solution Approach 1:
The shaver is divided into two separate functional modules: the housing containing the electric motor and control components, and the shaving head containing only the shaving elements. This segmentation allows each part to be optimized independently - the housing provides balanced weight distribution while the shaving head remains lightweight and flexible for following skin contours.
Solution Approach 2:
The electric motor is extracted from the shaving head and placed in the housing. This extraction eliminates the weight imbalance and handling difficulties caused by an integrated motor, while the shaving head can be mounted elastically to the housing for independent oscillatory motion.
2Adaptability or versatility
If the shaving head is made lightweight to follow skin contours, then adaptability improves, but the drive mechanism becomes more complex
Solution Approach 1:
An elastic connection acts as an intermediary between the housing and the shaving head. This elastic mounting allows the lightweight shaving head to be driven indirectly through the elastic elements, which transmit the oscillatory motion while maintaining the head's flexibility to follow skin contours.
Solution Approach 2:
The shaving head is mounted elastically on the housing, creating a dynamic connection that allows the head to move independently in response to skin contours. The elastic elements provide both the driving force transmission and the flexibility needed for adaptive following of skin surfaces.
3Ease of manufacture
If direct motor operation of the shaving head is used, then assembly is simplified, but vibrations and noise increase
Solution Approach 1:
Elastic elements serve as intermediaries between the motor-driven housing and the shaving head. These elastic mounting elements isolate and absorb vibrations and noise generated by the motor operation, preventing them from being transmitted to the shaving head and reducing overall noise while maintaining assembly simplicity.
Solution Approach 2:
The elastic mounting elements convert the harmful vibrations and noise generated by the motor into beneficial isolation. The elastic properties of the mounting elements absorb and dampen vibrations, transforming them into minimal residual movements that do not affect shaving performance.
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 solution enables a lightweight, balanced shaver that easily conforms to skin contours, provides effective and thorough shaving with reduced noise and friction, and simplifies construction by isolating vibrations and eliminating the need for direct motor operation of the shaving head.
Implementation Method 1
The electric motor includes two drive components. One of the drive components is coupled to the second shaving element, and one of the drive components is adapted to be driven to oscillate relative to the other drive component.
Implementation Method 2
The shaving head is elastically coupled to the housing and including a first shaving element
Implementation Method 3
The elastic connection between the at least second shaving element and the shaving head is constructed to include at least one leaf spring
Implementation Method 4
The oscillatory motions of the two shaving elements (shaving foil and under cutter) of opposite phase are of particular importance for an effective and thorough shave
Data Source
AI summary
An electric shaving apparatus including a housing and a shaving head. The shaving head is coupled to the housing by at least one first elastic element and includes at least one first shaving element. The electric shaving apparatus includes in addition an electric motor for generating an oscillatory motion of the shaving head and an oscillatory motion differing therefrom of at least one second shaving element. The electric motor includes two drive components of which a first drive component is adapted to be driven to oscillate relative to a second drive component. One of the drive components is connected to the second shaving element. The second shaving element or a drive part connected thereto is equipped with an elastic connection to the shaving head.