Portable Percussive Massage Device Venting for Motor Cooling
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Solution Overview
Problem
Percussive massage devices are often bulky and difficult to transport, leading to inadequate ventilation which causes overheating of internal components like the motor, resulting in potential failure.
Innovation Solution
A compact percussive massage device design with a vent system that provides airflow through vent holes and flanges to dissipate heat, ensuring even heat distribution and preventing overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the device is made smaller to improve portability, then the volume for ventilation is reduced, but this leads to inadequate ventilation and overheating of internal components
Solution Approach 1:
The housing incorporates vent holes distributed across its surface, transforming the solid housing into a porous structure that allows air flow. This enables adequate ventilation in a compact device by allowing air to pass through the housing material itself rather than requiring large external ventilation openings.
Solution Approach 2:
The vent holes are positioned at multiple locations including the distal end, lateral surfaces, and proximal end of the housing, utilizing three-dimensional space for ventilation. This multi-dimensional ventilation approach maximizes air flow pathways within the limited volume of the compact device.
2Ease of operation
If the device is made compact to improve portability, then the device is easier to transport, but internal components are prone to overheating due to reduced ventilation space
Solution Approach 1:
The housing is designed with multiple vent holes distributed across its surface, creating a porous structure that enables continuous air flow through the device. This allows compact components to be cooled effectively despite the reduced overall device size and limited ventilation space.
Solution Approach 2:
Air acts as an intermediary cooling medium that flows through the vent holes in the housing, transferring heat from internal components to the external environment. This intermediary fluid enables heat dissipation in the compact device without requiring direct contact cooling or large heat sinks.
3Temperature
If ventilation openings are increased to improve heat dissipation, then overheating is prevented, but the device becomes bulkier and less portable
Solution Approach 1:
Instead of large external ventilation openings, the housing employs multiple small vent holes distributed across its surface. This porous approach provides sufficient total ventilation area for effective heat dissipation while maintaining the compact外形 of the device, avoiding the need for bulky ventilation structures.
Solution Approach 2:
The ventilation system is segmented into multiple distributed vent holes rather than one or two large openings. Vent holes are positioned at the distal end, lateral surfaces, and proximal end of the housing, creating numerous small pathways for air flow that collectively provide adequate cooling without increasing device volume.
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 design effectively prevents overheating of internal components, allowing for safe and prolonged use without discomfort, while maintaining a compact and portable form factor.
Implementation Method 1
a vent extending through a vent opening in the housing, the vent configured to provide ventilation to the housing interior
Implementation Method 2
provide airflow through vent holes and flanges to dissipate heat, ensuring even heat distribution
Data Source
AI summary
A percussive massage device may include a housing having a housing interior. A motor may be positioned in the housing interior and may include a rotatable motor shaft having a motor axis. A battery may be positioned in the housing interior. A switch may be configured to activate the motor. A reciprocating shaft may operatively be connected to the rotatable motor shaft. The reciprocating shaft may include a distal end and is able to reciprocate in response to rotation of the rotatable motor shaft. A vent may extend through a vent opening in the housing to provide ventilation to the housing interior.