Reciprocating Pressure Generator for Massager Noise Reduction
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Solution Overview
Problem
Existing negative pressure massagers have complex structures and poor adsorption effects, failing to effectively relieve fatigue and soreness.
Innovation Solution
A pressure generator with a shell, movable member, and drive device that creates a gap between the movable member and the shell, allowing for reciprocal movement and generating alternating positive and negative pressures through a flexible sleeve made of skin-friendly materials, reducing noise and improving contact area for effective massaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a negative pressure massager is used to adsorb and relax the skin, then fatigue and soreness are relieved, but the structure becomes complicated and the adsorption effect becomes poor
Solution Approach 1:
The massager is divided into multiple independent pressure generation units, each with its own movable member and drive device. This segmentation allows each unit to function independently, simplifying the overall structure while maintaining effective adsorption through multiple distributed pressure points.
Solution Approach 2:
The movable member is designed to move reciprocally within the receiving space, dynamically changing the volume and generating alternating positive and negative pressures. This dynamic mechanism replaces complex static structures with a simple yet effective moving component that achieves both structural simplification and improved adsorption performance.
2Reliability
If the movable member moves reciprocally to generate pressure variations, then massaging effect is improved, but noise increases
Solution Approach 1:
A flexible sleeve made of skin-friendly materials is used to transmit pressure to the body. This flexible interface reduces mechanical noise from direct contact while maintaining effective pressure transmission, thereby improving the massaging effect without increasing noise.
Solution Approach 2:
The flexible sleeve acts as an intermediary between the movable member and the user's body. It mediates the pressure transmission process, reducing noise generated by direct mechanical contact while ensuring uniform force distribution for effective massaging.
3Reliability
If the gap between the movable member and shell is reduced for better pressure transmission, then adsorption effectiveness improves, but manufacturing precision requirements increase
Solution Approach 1:
Instead of requiring a precise small gap, the design allows for a larger gap that is intentionally left uncompensated. The movable member's reciprocating motion generates sufficient pressure variation even with this larger clearance, eliminating the need for high-precision manufacturing while maintaining effective pressure transmission.
Solution Approach 2:
The design changes the operational parameters by allowing larger gap dimensions and compensating through the dynamic reciprocating motion of the movable member. This parameter change approach maintains pressure transmission efficiency without requiring tight manufacturing tolerances for gap control.
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 enhances the massaging effect by providing a stable and uniform force with reduced noise, improving user experience through effective pressure variation and skin contact, thus effectively relieving fatigue and soreness.
Implementation Method 1
the drive device is configured to drive the movable member to move reciprocally in the receiving space... generating alternating positive and negative pressures through a flexible sleeve
Data Source
AI summary
The present invention discloses a pressure generator and a massager. The pressure generator includes a shell defining a first opening and a receiving space, a movable member extending into the receiving space and a drive device driving the movable member to reciprocally move within the receiving space. A gap is defined between the movable member and the inner wall of the shell.