Columnar Battery Pack Ring Support for Rolling Transport
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Solution Overview
Problem
Existing battery packs with detachable handles are inadequate for transporting heavy loads that are too heavy to lift and carry by hand.
Innovation Solution
A battery pack design featuring a columnar casing with a support structure, including a ring portion oriented perpendicularly to the casing, allowing manual transport by tilting and rolling on the ground, and protecting the external connection terminal within the support structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If detachable handles are used for carrying the battery pack, then ease of operation is improved for light battery packs, but the solution becomes insufficient for heavy battery packs that cannot be lifted
Solution Approach 1:
Instead of providing handles for lifting the battery pack vertically, the invention inverts the approach by providing a support structure that enables horizontal rolling movement. The ring portion at the end surface allows the battery pack to be tilted and rolled along the ground, converting the transport method from vertical lifting to horizontal rolling, which is effective for heavy objects.
Solution Approach 2:
The support structure includes a ring portion with a curved, circular cross-section that enables rolling motion. This spherical/circular geometry allows the battery pack to be easily rolled along the ground when tilted, providing an intuitive and efficient transport method for heavy battery packs without requiring lifting.
2Ease of operation
If the support structure projects from the casing, then ease of operation is improved for transport, but device complexity increases
Solution Approach 1:
The support structure is segmented into distinct functional parts: a base portion fixed to the casing and a ring portion extending from the base. This segmentation allows the support structure to provide both structural support and rolling functionality while maintaining a relatively simple overall design that does not significantly increase device complexity.
Data Source
AI summary
A battery pack including: a battery unit; a casing housing the battery unit and having a columnar shape; an external connection terminal exposed at an outer surface of the casing; and a support structure fixed to the casing. The support structure includes projects outward in a longitudinal direction of the casing from at least one end surface of the casing in the longitudinal direction, and includes a ring portion located at least one end of the battery pack in a longitudinal direction of the battery pack and oriented perpendicularly to the longitudinal direction of the casing.