Partitioned Battery Blower Layout for Cooling and Short-Circuit Prevention
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Solution Overview
Problem
Conventional blowers with battery packs face challenges in improving operability and output efficiency due to inadequate cooling of the battery, leading to potential overheating and reduced performance.
Innovation Solution
A blower design that includes a partition wall dividing the internal space into first and second spaces, where the battery is housed in the first space and airflow is generated in the second space, allowing airflow to pass through and cool the battery efficiently, enhancing cooling efficiency and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the battery is housed in a closed space within the blower, then the structure is simple and compact, but the battery overheats and cooling efficiency is insufficient
Solution Approach 1:
The internal space is divided into a first space for housing the battery and a second space for airflow generation, separated by a partition wall. This segmentation allows the battery to be isolated from the airflow generation unit while still enabling thermal management through the partition wall structure.
Solution Approach 2:
The partition wall acts as an intermediary structure between the battery housing space and the airflow generation space. It includes through-holes that serve as thermal conduits, allowing heat to be dissipated from the battery to the airflow without direct contact between the battery and the airflow generation unit.
2Temperature
If the battery is positioned close to the airflow generation unit, then cooling efficiency improves, but the risk of water accumulation and short circuits increases
Solution Approach 1:
The partition wall creates a physical barrier that divides the battery housing space from the airflow generation space. This segmentation maintains spatial separation that prevents water accumulation in the battery area while still allowing thermal energy to be transferred through the partition wall's through-holes.
Solution Approach 2:
The partition wall serves as an intermediary that enables thermal coupling between the battery and airflow generation unit while preventing direct contact and water accumulation. The through-holes in the partition wall allow heat transfer without creating pathways for water to reach the battery.
3Productivity
If the blower operates at high output, then productivity increases, but the battery overheats and operability decreases
Solution Approach 1:
The partition wall with through-holes provides continuous thermal management pathways that operate throughout the blower's high-output operation. The airflow continuously passes through the second space and exchanges heat with the battery through the partition wall, maintaining stable battery temperature during sustained high productivity operation.
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 partitioned design effectively cools the battery, improving operability and output by maintaining high performance and preventing overheating, while also preventing water accumulation and potential short circuits.
Implementation Method 1
an airflow generation unit configured, by being supplied with electric power from the battery, to generate an airflow in an interior space of the body portion from a rear of the body portion toward the jet port
Data Source
AI summary
A blower adapted to be used by mounting a battery is provided and includes a body portion including: a jet port provided at a front side of the body portion; an airflow generation unit configured, by being supplied with electric power from the battery, to generate an airflow in an interior space of the body portion from a rear of the body portion toward the jet port; and a partition wall disposed to divide the interior space into a first space and a second space, wherein: the first space is configured to receive the battery, and the second space is positioned outside of the first space, and is configured to allow the airflow to pass therethrough.