Backpack Harness Cooling via Porous Back Plate
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Solution Overview
Problem
Backpack-type assemblies can cause heat buildup when worn, leading to discomfort for users due to inadequate cooling mechanisms.
Innovation Solution
Incorporation of a cooling fan and cooling ports within the harness, which circulates air to cool the user's body by contacting the back plate and shoulder/waist belts, allowing for adjustable airflow to mitigate heat sensation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a backpack-type assembly is worn on the user's back, then the user can carry the body and base member, but heat builds up at the contact portion causing discomfort
Solution Approach 1:
The back plate is designed with multiple through holes forming air passages that penetrate the entire thickness of the plate. These porous-like structures allow cooling air to flow through the back plate, directly reaching the user's back contact area to dissipate heat buildup and improve wearing comfort.
Solution Approach 2:
The cooling fan blows cooling air into the air passages formed by the through holes in the back plate. This pneumatic system circulates air through the base member structure, using fluid flow (air) to remove heat from the contact portion between the backpack and user's back.
2Temperature
If a cooling fan is added to circulate cooling air, then heat buildup is reduced, but device complexity increases
Solution Approach 1:
The back plate serves multiple functions: it provides structural support for the base member, creates air passages through its through holes for cooling airflow, and acts as a mounting surface for the cooling fan. This multi-functionality reduces the need for separate cooling components, thereby limiting the increase in device complexity.
Solution Approach 2:
The cooling function is merged into the existing back plate structure by forming air passages within it rather than adding a separate cooling system. The back plate combines structural support and thermal management functions, reducing overall system complexity while achieving heat reduction.
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
Effectively reduces heat buildup on the user's body by circulating cooling air through the cooling ports, enhancing comfort during use.
Implementation Method 1
The cooling fan may be configured to circulate cooling air into or out of the base member through the cooling port of the harness
Data Source
AI summary
A backpack-type assembly may include: a body; and a base member. The body may include a cooling fan. The base member may include: a back plate attached to the body; and a harness attached to the back plate and configured to be worn on a user. The harness may include: a cooling port; and at least one shoulder belt configured to be worn on a shoulder of the user. The cooling fan may be configured to circulate cooling air into or out of the base member through the cooling port of the harness.