Airflow Cooling Lid With Cross-Surface Beverage Venting
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Solution Overview
Problem
Existing beverage lids do not provide a simple, effective, safe, and cost-effective method for consumers to control the rate at which the temperature of hot beverages decreases, leading to potential scalding and inefficiencies in cooling.
Innovation Solution
A beverage lid design that allows consumers to blow air across the beverage to cool it, with an exhaust opening to displace high-humidity hot air, enabling rapid and personalized temperature control without removing the lid, and optionally directing exhaust away from the face.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional lids with pin-sized vent openings are used, then spillage prevention and pressure release are achieved, but cooling effectiveness is insufficient as high-humidity air merely swirls around the beverage surface
Solution Approach 1:
The lid is segmented into multiple functional zones: a first opening for beverage consumption, a second opening for air intake positioned away from the consumer's face, and a pin-sized vent opening. This segmentation allows independent optimization of each opening's function, enabling effective cooling airflow while maintaining simplicity in the overall lid structure.
Solution Approach 2:
Outside air acts as an intermediary cooling medium that is introduced through the second opening, flows across the beverage surface, and exits through the first opening. This intermediary airflow enables heat transfer from the beverage to the air, achieving cooling without direct consumer intervention or complex mechanical systems.
2Temperature
If users blow high-humidity air into the drinking opening to cool the beverage, then some cooling effect is achieved, but the high-humidity air remains inside the container with nominal cooling effect
Solution Approach 1:
The invention extracts the hot, high-humidity air that forms over the beverage surface through the pin-sized vent opening and directs it away from the consumer's face. By removing this saturated air, the system maintains a temperature and humidity gradient that promotes continuous evaporative cooling and prevents the buildup of insulating humid air layers.
Solution Approach 2:
The lid system creates dynamic airflow patterns where outside air continuously enters through the second opening, flows across the beverage surface, and hot air is continuously extracted through the vent opening. This dynamic air exchange system maintains optimal cooling conditions throughout the beverage consumption process.
3Temperature
If existing cooling mechanisms like reservoir cooling or bellows cooling are implemented, then cooling capability is provided, but manufacturing complexity and cost increase significantly
Solution Approach 1:
The lid system enables self-service cooling where the consumer simply blows air into the second opening, and the system automatically manages the airflow path and heat exchange process. No additional mechanical components, reservoirs, or complex mechanisms are required—the consumer's breath provides the driving force for the entire cooling system.
Solution Approach 2:
The lid structure serves multiple functions simultaneously: it allows beverage consumption through the first opening, provides cooling through controlled airflow across the beverage surface, prevents spillage through the pin-sized vent opening, and directs exhaust away from the consumer's face. This multi-functionality is achieved within a simple, unified lid structure that is easy to manufacture.
4Temperature
If heat transfer cooling at the point of consumption is used, then cooling occurs, but hot vapor is directed towards the consumer's mouth amplifying the scalding effect
Solution Approach 1:
The lid employs asymmetric positioning of openings: the second opening for air intake is positioned away from the consumer's face, while the pin-sized vent opening for exhaust is strategically located to direct hot vapor and steam away from the mouth area. This asymmetric design ensures that cooling airflow and hot vapor ejection are spatially separated, eliminating the scalding hazard while maintaining cooling effectiveness.
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
Enables consumers to safely and conveniently cool hot beverages efficiently, avoiding the need for dilution or complex apparatus, while maintaining cost-effectiveness and ease of use.
Implementation Method 1
allows consumers to blow air across the beverage to cool it
Implementation Method 2
cooling airflow is yet to be drawn over the liquid
Data Source
AI summary
In the field of lids for beverage containers, an airflow cooling lid for hot beverage containers that enables the user to cool down the beverage in the container by blowing outside air across the surface of the beverage without removal of the lid. The airflow cooling lid comprises a circular cover snuggly placed over a hot beverage container having a mounting rim, a surface portion, a drinking opening in form of an opening for consuming the beverage and an exhaust opening to be used as either the intake or exhaust portal for the air drawn over the surface of the beverage. Either or both the drinking opening or the exhaust opening may be angled outward to allow the exhaust air to flow away from the face when blowing through either portal.