Loop Handle Battery Layout to Prevent Tool Drop Damage
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Solution Overview
Problem
Electric tools face issues with battery pack protrusion leading to potential damage and interference with work operations, and handle deformation during drops, affecting workability and protection performance.
Innovation Solution
A work machine design featuring a loop structure formed by the handle and housing, with the battery positioned inside, and a protect part connecting the handle's connection parts, ensuring the battery is supported obliquely and reducing protrusion, while the handle is reinforced to minimize damage from impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the battery pack is installed in the electric tool, then power supply is enabled and work can be performed, but the battery pack protrudes toward the rear side which causes deformation/damage during drops and interferes with movement during work
Solution Approach 1:
The battery pack is nested within the loop structure formed by the handle and housing. The handle extends from the housing and loops back to enclose the battery pack, creating a protective cage that integrates the battery into the overall structure rather than having it protrude externally.
Solution Approach 2:
The handle is configured with connection parts positioned above and below the battery pack in the vertical dimension, creating a three-dimensional loop structure that encloses the battery from multiple directions, transforming the protection approach from surface-level to volumetric containment.
2Ease of operation
If the handle is made protruding to provide grip, then operator control is facilitated, but the handle may be deformed/damaged when dropping which affects workability
Solution Approach 1:
The handle is merged with the housing through multiple connection parts to form an integrated loop structure. This combination strengthens both components, as the housing provides structural support to the handle while the handle's loop configuration reinforces the housing, creating a unified protective framework.
Solution Approach 2:
The loop structure formed by the handle and housing creates a protective framework that anticipates and cushions against impact forces during drops. The enclosed configuration distributes impact stress across multiple connection points rather than concentrating it at single vulnerable joints.
3Ease of manufacture
If the battery pack protrudes from the electric tool, then installation and removal is simplified, but the battery pack or battery pack installation part contacts the ground during drops causing deformation/damage
Solution Approach 1:
The battery pack installation part is nested within the loop structure formed by the handle and housing. The handle's connection parts positioned above and below the battery create a protective enclosure that prevents direct ground contact while maintaining accessible installation and removal capabilities.
Data Source
AI summary
A cutting tool 10 comprises a housing 30, and a handle 50 connected to the housing 30. The handle 50 comprises: a grip part 51; a first connection part 52 extending from one end of the grip part 51 toward a front side and fixed to a main body housing 32 of the housing 30; and a second connection part 53 extending from the other end of the grip part 51 toward the front side and fixed to the main body housing 32. Thus, a loop structure S is formed by the housing 30 and the handle 50. Then, a battery pack 100 to be attached to a battery attachment and detachment part 42 of a motor housing 40 is disposed in the loop structure S.