Inhaler Heater Carrier With Dual-Sided Capillary Liquid Buffering
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Solution Overview
Problem
Existing inhaler components face challenges in buffering sufficient liquid material without substantial additional construction space and ensuring reliable liquid supply, particularly due to bulky designs and costly fabrication of fine features that can disrupt capillary action.
Innovation Solution
The design incorporates both sides of the carrier plate as boundary walls of the capillary gap, creating additional buffer volume and redundancy in liquid supply, with the capillary gap partly formed by the carrier plate and adjacent housing walls, allowing for efficient and space-saving liquid transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a capillary gap is formed using additional structural elements (like top pieces with fine features), then the liquid buffering capacity is improved, but the device complexity and manufacturing cost increase substantially
Solution Approach 1:
The patent merges the functions of the carrier plate and housing into a unified structure where the carrier plate simultaneously serves as a structural support and forms the capillary gap boundaries. The edges of the carrier plate directly form part of the capillary gap, eliminating the need for separate top pieces or additional structural elements to create the liquid buffer zone.
Solution Approach 2:
The carrier plate is designed to perform multiple functions: it provides mechanical support for the heating element, forms electrical connections, and creates the capillary gap structure for liquid buffering. This multi-functional design eliminates the need for dedicated components solely for liquid buffering, reducing overall device complexity.
2Quantity of substance
If fine features are fabricated to create capillary gaps, then liquid supply buffering is improved, but manufacturing precision requirements and costs increase
Solution Approach 1:
The capillary gap is formed by the natural edges and surfaces of existing structural components (carrier plate and housing walls) rather than requiring separately fabricated fine features. This integration eliminates the need for precision fabrication of dedicated capillary structures.
Solution Approach 2:
The patent changes the approach from creating capillary gaps through fine feature fabrication to utilizing the inherent dimensions and tolerances of standard structural components. The capillary action is achieved through the natural surface properties and gap dimensions of the carrier plate and housing, which can be manufactured using conventional processes.
3Device complexity
If a single-sided capillary gap design is used, then the device complexity is reduced, but the reliability of liquid supply decreases
Solution Approach 1:
The patent extends the capillary gap design from a single-sided configuration to a dual-sided configuration where the carrier plate forms capillary gaps on both its upper and lower surfaces. This creates redundant liquid supply pathways, improving reliability while maintaining structural simplicity by utilizing the same carrier plate component.
Solution Approach 2:
The dual-sided capillary gap design creates a redundant liquid buffer system that provides backup supply pathways. If one capillary gap becomes blocked or insufficient, the other side continues to supply liquid, providing beforehand cushioning against supply failures.
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 enhances the reliability and capacity of liquid supply, ensuring continuous operation even if one capillary gap segment is compromised, without requiring additional construction space, and maintains capillary action integrity.
Implementation Method 1
a wick with a capillary structure, which wick forms a compound structure with the heating element and automatically supplies the heating element with the liquid material
Implementation Method 2
a capillary gap at least partly formed by the carrier plate for the automatic supplying of the compound structure with the liquid material in that an end segment of the wick protrudes into the capillary gap
Implementation Method 3
an electrical heating element to evaporate a portion of the liquid material
Implementation Method 4
formation of a vapor and air mixture and/or a condensation aerosol by evaporation of a liquid material and optionally by condensation of the resulting vapor
Data Source
AI summary
This disclosure relates to an inhaler component for the formation of a vapor-air mixture and/or a condensation aerosol by evaporation of a liquid material and optionally the condensation of the formed vapor. In one example, the inhaler component includes an electrical heater to evaporate liquid, a capillary wick that together with the electrical heater defines a compound structure that supplies liquid to the electrical heater, and a carrier supporting the compound structure. The carrier makes electrical contact with the electrical heater, and at least partially defines a portion of a capillary gap. The capillary gap is in fluid communication with the wick and automatically supplies liquid to the compound structure. Internal and external sides or faces of the carrier (relative to the compound structure) can define portions of the capillary gap.