Modular Power Tool Platform With Shared PWM Battery Base
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Solution Overview
Problem
Existing power tool systems lack a unified platform that allows for versatile and efficient power delivery across various tools, with limited compatibility and control options, leading to increased complexity and cost in tool design and operation.
Innovation Solution
A power tool system featuring a removable battery pack and a common base housing with a proportional power delivery system and actuator, enabling multiple tools to share a common design, including rotary tools, soldering tools, and others, with the battery pack serving as a weighted base and providing 80 W to 120 W pulse-width-modulation power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a unified power tool platform with common base housing and controller is used across multiple tools, then device complexity and manufacturing cost are reduced, but adaptability to different tool types is limited
Solution Approach 1:
The base housing and controller are designed as universal components that can be shared across multiple tool types (rotary tools, soldering tools, etc.). The controller is configured to provide proportional power delivery suitable for different tool requirements, and the base housing accommodates various battery packs and tool attachments, enabling one design to serve multiple functions.
2Use of energy by moving object
If proportional power delivery system with PWM control is implemented, then power efficiency and tool performance are improved, but device complexity increases
Solution Approach 1:
The controller replaces traditional mechanical power control mechanisms with electronic PWM (pulse-width modulation) control. This allows proportional power delivery to be achieved through electronic switching and timing control rather than mechanical variable resistors or rheostats, improving power efficiency while keeping the electronic controller relatively simple.
3Ease of operation
If multiple tools share a common battery pack interface, then ease of operation and user convenience are improved, but manufacturing precision requirements increase
Solution Approach 1:
The battery pack interface is designed with standardized electrical contacts and mechanical engagement features that create equivalent electrical and mechanical connection points across all tool types. This standardization ensures that the same battery pack can be inserted into different tools with consistent alignment and contact pressure, achieving both ease of operation and acceptable manufacturing tolerances through equipotential design.
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 system simplifies tool design and operation by enabling a range of tools to share common components, reducing complexity and cost while providing versatile power delivery and user control through a unified platform.
Implementation Method 1
a removable battery pack... The battery pack may be inserted into the first tool base housing along a first plane
Implementation Method 2
a first controller that provides a proportional power delivery system for the first tool... the first controller may provide the proportional power delivery in the range of 80 W to 120 W pulse-width-modulation
Data Source
AI summary
A power tool system includes a removable battery pack a first tool and a second tool. The first tool includes a first base housing that is selectively engageable with the removable battery pack and a first tool portion connected to the first base housing by a first connecting section. The second tool includes a second base housing that is selectively engageable with the removable battery pack and a second tool portion connected to the second base housing by a second connecting section. The second tool base housing houses a second controller that provides a proportional power delivery system for the second tool and second tool base housing also includes a second actuator for providing user control of the second tool.