Electric Shaver Handle Damping for Reduced Vibration Transfer
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Solution Overview
Problem
Electric shavers experience strong body vibrations due to the amplitude of vibrations, leading to a poor usage experience.
Innovation Solution
The electric shaver incorporates a handle with a driving device and a hair cutting unit, featuring a motor housing, elastic suspension components, and a vibration damping device. The driving device includes a stator and mover component connected by an elastic suspension, while the handle has a bracket body with a vibration damping oscillator and cushioning mechanism to absorb angular vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a driving device with motor housing and elastic suspension components is used, then the vibration amplitude is reduced, but the device complexity increases
Solution Approach 1:
The driving device is segmented into multiple independent components: motor housing, base, mover component, stator component, elastic suspension component, and elastic support. Each component performs a specific function and can be independently designed and assembled, allowing vibration reduction through distributed mass and isolation mechanisms while maintaining manufacturing efficiency.
Solution Approach 2:
Elastic suspension components and elastic supports act as intermediary elements between the motor housing and the base, and between the base and the mover component. These intermediaries absorb and isolate vibrations, preventing direct transmission of mechanical shocks while allowing controlled movement for the shaving function.
2Ease of operation
If a vibration damping device with oscillator and cushioning mechanism is added to the handle, then the usage experience is improved, but the device complexity increases
Solution Approach 1:
The vibration damping device converts the harmful vibrations generated by the driving device into beneficial damping effects. The oscillator and cushioning mechanism are specifically designed to resonate with and absorb the vibration frequencies produced during shaving, transforming mechanical energy into heat through controlled oscillation and friction, thereby reducing the perceived vibration and improving comfort.
Solution Approach 2:
The vibration damping oscillator utilizes mechanical vibration principles to counteract the vibrations from the driving device. By tuning the oscillator's natural frequency to match the driving device's vibration frequency, the system creates destructive interference that reduces overall vibration amplitude, while the cushioning mechanism provides additional damping through material deformation.
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 combination of elastic support and vibration damping device effectively reduces the overall vibration amplitude, enhancing the user's experience by minimizing vibrations transmitted to the handle.
Implementation Method 1
an end of the elastic suspension component is fixedly connected to the base, and the other end of the elastic suspension component is fixedly connected to the mover component
Implementation Method 2
the base is suspended and connected to the motor housing through the elastic support
Implementation Method 3
the stator component is capable of driving the mover component to move reciprocally in a predetermined direction by electromagnetic action
Implementation Method 4
the vibration damping oscillator is suspended and fixedly connected to the bracket body through the cushioning mechanism, to absorb an angular vibration of the handle triggered by the driving device
Data Source
AI summary
The present disclosure provides an electric shaver, including a handle, and a driving device and a hair cutting unit; the driving device includes a motor housing, and a base, a mover component, a stator component, an elastic suspension component, and an elastic support that are disposed in the motor housing; the stator component is fixedly arranged on the base; an end of the elastic suspension component is fixedly connected to the base, and the other end is fixedly connected to the mover component; the base is suspended and connected to the motor housing through the elastic support; the stator component drives the mover component to move reciprocally in a predetermined direction; the mover component is connected to the hair cutting unit; the handle includes a bracket body and a vibration damping device; the vibration damping device includes a vibration damping oscillator and a cushioning mechanism.