Vibratable Member Connection Member Nozzle Disc Droplet Generation
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Solution Overview
Problem
Current droplet generation apparatuses face challenges in efficiently controlling the interval between the nozzle disc and the vibratable element, making it difficult to achieve optimal droplet generation efficiency.
Innovation Solution
The droplet generation apparatus incorporates a vibratable member, a connection member, a nozzle disc, and a housing, with the connection member or fastening plate enhancing vibration efficiency and forming an accommodation space, thereby improving the nebulization of fluids without requiring precise interval control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the interval between the nozzle disc and the vibratable element is controlled to achieve optimal droplet generation efficiency, then the droplet generation efficiency is improved, but the manufacturing complexity and difficulty increase
Solution Approach 1:
A connection member is introduced as an intermediary component between the vibratable element and the nozzle disc. This connection member includes a through hole that aligns with the through hole of the vibratable element, allowing liquid to pass through while mechanically connecting the two components. This intermediary structure eliminates the need for precise interval control between the nozzle disc and vibratable element, as the connection member provides a fixed structural relationship, thereby improving manufacturability while maintaining droplet generation efficiency
Solution Approach 2:
The device is segmented into distinct functional components: the vibratable element, the connection member, and the nozzle disc. The connection member serves as a separate component that bridges the other two, allowing each component to be manufactured independently with standard tolerances. This segmentation avoids the need for precision machining of the interface between the nozzle disc and vibratable element, reducing manufacturing difficulty while preserving the functional requirements for efficient droplet generation
2Ease of manufacture
If the interval between the nozzle disc and the vibratable element is not controlled, then the manufacturing ease is improved, but the droplet generation efficiency decreases
Solution Approach 1:
The connection member acts as a mediator that transmits vibration from the vibratable element to the nozzle disc while maintaining a fixed structural relationship. The through hole in the connection member aligns with the through hole in the vibratable element, creating a direct liquid passage that ensures efficient droplet generation without requiring precise control of the interval between the nozzle disc and vibratable element. This intermediary structure preserves functional efficiency while enabling easier manufacturing
Solution Approach 2:
The solution shifts the focus from controlling the radial or axial interval between components to designing the connection member's through hole geometry. By optimizing the dimensions and positioning of the through hole in the connection member, the system achieves efficient liquid flow and droplet generation through a different dimensional approach, eliminating the need for precise interval control between the nozzle disc and vibratable element
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 increases the efficiency and accuracy of droplet formation, enhancing the nebulization process by improving vibration efficiency and creating a stable accommodation space for the nozzle disc, leading to improved droplet generation performance.
Implementation Method 1
The vibratable member has a first through hole. The nozzle disc has a plurality of apertures facing the first through hole. Reciprocating motion then is generated by driving the vibratable member to squeeze liquid to be sprayed from the apertures of the nozzle disc, thereby forming micro-droplets.
Implementation Method 2
An atomizer used in the current market is usually composed of a vibratable element made by a piezoelectric material and a nozzle disc, wherein the vibratable element is disposed in a chamber which is used to accommodate liquid, or connected to the nozzle disc. High speed reciprocating motion then is generated when the piezoelectric material is conducted electricity
Data Source
AI summary
A droplet generation apparatus is applied to a nebulizer. The droplet generation apparatus comprises a vibratable member, a nozzle disc, a housing and a connection member or a fastening plate or both the connection member and the fastening plate. The vibratable member has a first through hole. The nozzle disc has a plurality of apertures facing the first through hole, and is combined with the vibratable member. The connection member is disposed between the vibratable member and the nozzle disc, and has a second through hole corresponding to the first through hole. Alternatively, the fastening plate is combined with the nozzle disc. The housing covers up the combination of the vibratable member, the nozzle disc and the connection member or the fastening plate. Vibration efficiency generated by the vibratable member is improved through the connection member. An accommodation space is formed by the fastening plate and the nozzle disc.