Cylindrical Piezoelectric Atomizing Membrane With Low-Power Vibration
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Solution Overview
Problem
Existing atomizers using piezoelectric vibrators face challenges in achieving high atomization efficiency while maintaining low power consumption, as they tend to have decreased vibration efficiency when mounted and are prone to cavitation erosion.
Innovation Solution
The atomizing member incorporates a cylindrical piezoelectric vibrator with a vibrating membrane, where the piezoelectric body and vibrating membrane are formed integrally, and a flange is connected to the piezoelectric body to enhance vibration efficiency and reduce vibration inhibition, along with a through-hole formed member for precise design and material flexibility, and a liquid feeder that supplies liquid to the vibrating membrane to increase diffusion angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a piezoelectric vibrator is mounted on a base, then the atomizer structure is complete and functional, but vibration efficiency decreases due to mounting inhibition
Solution Approach 1:
The piezoelectric body and vibrating membrane are formed integrally as a single piece, eliminating the need for separate mounting operations. This integration ensures that the vibration generated by the piezoelectric body is directly transmitted to the vibrating membrane without loss, while still allowing the integrated unit to be mounted on the base for structural support and functionality.
2Device complexity
If the piezoelectric vibrator vibrates by transverse effects, then the structure is simple and compact, but atomization efficiency cannot be sufficiently increased
Solution Approach 1:
The invention utilizes longitudinal vibration of the piezoelectric body along its polarized axis to generate efficient atomization. The vibrating membrane is positioned to be directly driven by this longitudinal vibration, creating effective atomization motion without requiring complex transverse vibration mechanisms, thus maintaining structural simplicity while achieving high atomization efficiency.
3Productivity
If the piezoelectric vibrator is operated at high power, then atomization efficiency improves, but power consumption increases
Solution Approach 1:
The integral formation of the piezoelectric body and vibrating membrane creates a direct mechanical coupling that maximizes vibration transmission efficiency. This eliminates energy loss at interfaces and reduces the power required to achieve effective atomization, allowing high atomization efficiency to be maintained at lower power consumption levels.
4Ease of operation
If a flange is added to the piezoelectric body for mounting, then ease of mounting improves, but vibration inhibition may increase
Solution Approach 1:
The flange is designed with specific structural characteristics that provide adequate mounting capability while minimizing its impact on vibration. The flange's local structural properties are optimized to allow secure mounting without creating excessive mechanical constraints that would inhibit the longitudinal vibration of the piezoelectric body, thus balancing ease of mounting with vibration efficiency.
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
This configuration results in high atomization efficiency and low power consumption, with reduced vibration inhibition and cavitation erosion, allowing for more effective atomization and extended atomizer life.
Implementation Method 1
The piezoelectric vibrator includes a cylindrical piezoelectric body, a first electrode, and a second electrode. The first electrode is disposed on an inner circumferential surface of the piezoelectric body. The second electrode is disposed on an outer circumferential surface of the piezoelectric body. The piezoelectric vibrator performs cylindrical breathing vibration.
Implementation Method 2
an ultrasonic atomizing member that uses a piezoelectric vibrator
Data Source
AI summary
An atomizing member that includes a piezoelectric vibrator and a vibrating membrane. The piezoelectric vibrator includes a cylindrical piezoelectric body, a first electrode disposed on an inner circumferential surface of the piezoelectric body, and a second electrode disposed on an outer circumferential surface of the piezoelectric body. The piezoelectric vibrator performs cylindrical breathing vibration. The vibrating membrane is disposed on an opening at a first side in an axial direction of the piezoelectric body so as to cover the opening. The vibrating membrane has a through hole in its central portion.