Inhaler Evaporator Planar Contacts to Prevent Overheating
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Solution Overview
Problem
Conventional inhaler vaporizers using wick-coil technology face issues with liquid supply disruptions leading to overheating and leaks, resulting in inefficient and unreliable electrical connections.
Innovation Solution
A vaporizer device with a planar contact area on the electrical line for improved electrical and material bonding, ensuring a reliable connection and preventing overheating, utilizing a ceramic substrate and gold contact areas for thermal stability and conductivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a curved or round cross-section electrical line is used, then the device complexity is reduced, but the electrical connection reliability and contact surface area deteriorate
Solution Approach 1:
The electrical line is transformed from a traditional curved/round cross-section (1D cylindrical shape) to a planar contact area (2D flat surface). This dimensional change allows for significantly increased contact surface area between the electrical line and vaporizer, improving electrical connection reliability and reducing contact resistance while maintaining manufacturing simplicity.
2Manufacturing precision
If a small contact area is used, then the manufacturing precision requirement is reduced, but the electrical connection reliability and heat dissipation deteriorate
Solution Approach 1:
By expanding the contact interface from a point or small curved surface to a planar area, the invention increases the contact surface area without significantly increasing manufacturing precision requirements. The planar geometry allows for easier alignment and bonding while providing enhanced electrical and thermal contact.
3Device complexity
If conventional wick-coil technology is used, then the device complexity is reduced, but the temperature control and liquid supply reliability deteriorate
Solution Approach 1:
The invention extracts and removes the wick component from the vaporizer structure, replacing it with a planar contact area electrical line design. This eliminates the liquid supply disruptions and overheating issues associated with wick-coil technology, as the liquid flows directly over the planar heating surface without relying on capillary action through a wick.
4Reliability
If a planar contact area is used, then the electrical connection reliability and contact surface area are improved, but the device complexity increases
Solution Approach 1:
The invention changes the geometric parameters of the electrical line from a curved/round cross-section to a planar configuration. This parameter change increases the contact surface area and improves electrical connection reliability while the planar geometry actually simplifies the manufacturing process and bonding procedure compared to curved surfaces.
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 provides a reliable and efficient electrical connection, preventing overheating and leaks, while maintaining thermal stability and ensuring precise electrical contacting and retention of vaporizer components.
Implementation Method 1
The contact area is therefore not point-shaped or curved, as it is the case with an electrical line with a curved and, in particular, round cross-section. Therefore, a reliable electrical connection between the electrical line and the vaporizer can be established in the contact area. Furthermore, due to the planar design of the contact area, an enlarged contact surface for realizing a bond and for current transmission can be achieved. Thus, for example, high transition resistances and associated localized temperature peaks can be avoided.
Implementation Method 2
the liquid is transported by capillary forces from an inlet side through at least one liquid channel to an outlet side where vaporized liquid can be added to an air stream
Data Source
AI summary
A vaporizer device for an inhaler comprises at least one electric vaporizer for vaporizing liquid fed to the vaporizer, wherein the liquid is transported by capillary forces from an inlet side through at least one liquid channel to an outlet side, where vaporized liquid can be added to an air stream, a carrier retaining the vaporizer, and at least one electrical line electrically contacting the vaporizer. The electrical line comprises a planar contact area, and the vaporizer and the planar contact area of the electrical line are materially and electrically conductively bonded to each other.