Multi-Latch Battery Interface for Cross-Pack Power Tool Compatibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing power tools face challenges in effectively supporting and operating with battery packs of different sizes or shapes, as conventional interfaces often require specific matching between tool and pack, limiting versatility and ease of use.
Innovation Solution
A power tool with a multi-latch mechanism in the battery receptacle that can engage multiple latching locations, accommodating battery packs of varying sizes and configurations, including pivotable and translating latches, to ensure secure and efficient attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single-latch mechanism is used, then the device complexity is reduced, but the adaptability to different battery pack sizes and shapes deteriorates
Solution Approach 1:
The latch mechanism is divided into multiple independent latch members (first latch member, second latch member, etc.) that can independently engage with different portions of various battery pack designs. This segmentation allows each latch member to be optimized for specific engagement scenarios while collectively providing universal compatibility across different battery pack sizes and shapes.
Solution Approach 2:
The multi-latch mechanism is designed to universally engage with multiple types of battery packs having different latching configurations. The latch members can pivot and translate to accommodate various battery pack geometries, making the power tool compatible with both conventional and non-conventional battery pack designs through a single unified interface.
2Adaptability or versatility
If a multi-latch mechanism is implemented, then the adaptability to different battery packs is improved, but the device complexity increases
Solution Approach 1:
Multiple latch members are merged into a single integrated mechanism that operates through one actuator. The latch members share common mounting structures and coordination mechanisms, allowing them to function together as a unified system rather than separate components, thereby reducing overall complexity while maintaining multi-pack compatibility.
Solution Approach 2:
The latch members are designed with dynamic characteristics, including pivotable joints and translating capabilities, allowing them to adapt their position and orientation based on the specific battery pack engaged. This dynamic behavior enables the mechanism to automatically adjust to different battery pack configurations without requiring manual adjustment or complex control systems.
3Reliability
If the latch mechanism is made more robust, then the reliability of battery pack engagement is improved, but the ease of operation deteriorates
Solution Approach 1:
The latch members are pre-positioned and spring-loaded to automatically engage with the battery pack latching locations as the battery pack is inserted. This preliminary positioning ensures that the latching action occurs naturally during the insertion process itself, providing secure engagement without requiring additional manual manipulation or force from the user.
Solution Approach 2:
The multi-latch mechanism is designed to self-align and self-latch when a battery pack is inserted. The pivotable and translating latch members automatically find their engagement positions and secure the battery pack through inherent mechanical guidance features, eliminating the need for user intervention beyond simple insertion and improving both reliability and ease of operation.
Data Source
AI summary
This application relates to a cordless power tool system including a set of cordless power tools, a set of rechargeable and removable battery packs, and a set of battery pack chargers.