Ventilated Backpack Air Flow Guide Panel
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Solution Overview
Problem
Backpacks insulate the user's back, inhibiting natural cooling and causing increased temperature and sweating due to reduced airflow.
Innovation Solution
A ventilated backpack design featuring an air flow channel with a blower that directs cooled air along the back, using a rearward facing air flow guide surface and a forward facing air flow guide panel to create a channel for airflow, with inlet and outlet openings for efficient air flow and cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a backpack is designed to provide insulation and protection for stored items, then the structural integrity and safety of contents are improved, but the user's back temperature increases and natural cooling is inhibited
Solution Approach 1:
The backpack is segmented into distinct functional zones: a storage compartment for protecting items and a separate ventilation channel system for cooling the user's back. The air flow channel is divided into multiple sections with inlet openings at the bottom and outlet openings at the top, allowing air to flow through the entire height of the backpack, thereby separating the insulation function from the cooling function.
Solution Approach 2:
An air flow guide panel is introduced as an intermediary component between the storage compartment and the user's back. This panel creates a dedicated air flow channel that mediates between the stored items (which need protection) and the user's back (which needs cooling), allowing air to circulate through the channel without compromising the structural integrity of the storage compartment.
2Reliability
If a backpack provides protection and support for stored items, then the safety and accessibility of contents are improved, but airflow over the user's back is reduced and sweating increases
Solution Approach 1:
The backpack applies local quality by providing different functional characteristics to different regions: the storage compartment maintains its traditional protective and insulating properties, while the air flow channel region is specifically designed with high airflow capability. The air flow guide panel creates a localized cooling zone on the user's back without affecting the storage compartment's protective function.
3Object-affected harmful factors
If a backpack is designed with traditional insulation properties, then the protection against external elements is improved, but the natural cooling function of the back is inhibited
Solution Approach 1:
The backpack transitions from a static insulation design to a dynamic ventilation system. The air flow channel incorporates inlet and outlet openings that enable active air circulation, allowing the backpack to adapt between providing protection and providing cooling based on the user's needs and environmental conditions.
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 backpack effectively cools the user's back by circulating air through the air flow channel, reducing sweat and discomfort by maintaining airflow and temperature regulation.
Implementation Method 1
A blower is supported on the backpack for blowing air through the air flow channel along a flow path extending from the inlet opening through the outlet opening
Data Source
AI summary
A backpack has an air flow guide panel connected to the rear side of a rear storage pocket of the backpack such that an air flow channel is defined between opposing surfaces of the air flow guide panel and the rear storage pocket. The air flow guide panel and the pocket are shaped and arranged to define an inlet opening and an outlet opening in fluid communication with the air flow channel. The inlet opening is located adjacent the bottom of the pocket and the outlet opening is spaced apart along the height of the pocket from the inlet opening toward the top of the pocket. A blower is supported on the backpack for blowing air through the air flow channel along a flow path extending from the inlet opening through the outlet opening.