Energy storage module for a hand-held power tool
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Solution Overview
Problem
Existing energy storage modules for electric hand-held machine tools and vacuum cleaners have limited functionality due to the lack of a separate data interface for communication, leading to inefficiencies in wireless communication and frequent replacements, which can disrupt the communication standards and timeliness of operations.
Innovation Solution
Incorporating a data interface separate from the supply contacts, specifically a bus interface, in the energy storage module to enable data communication with the device, allowing the module to send transmission signals based on received information and manage wireless communication standards autonomously, thereby eliminating the need for wireless communication interfaces in the electric device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If wireless communication functions are integrated into the energy storage module, then the electric device does not need its own wireless communication interface, but the field of application and functionality of the energy storage module remain limited without a separate data interface
Solution Approach 1:
The device interface is segmented into two separate interfaces: a data interface for bidirectional data communication between the energy storage module and electric device, and a wireless communication interface for wireless communication with external communication apparatus. This segmentation allows each interface to perform its specific function independently, resolving the contradiction by enabling both simplified integration and enhanced functionality.
Solution Approach 2:
The energy storage module is designed with multi-functionality by incorporating both data interface and wireless communication interface. The data interface enables communication with various electric devices (hand-held machine tools, vacuum cleaners), while the wireless communication interface enables wireless communication with external apparatus, making the energy storage module universally applicable across different applications.
2Loss of time
If the energy storage module manages wireless communication autonomously via data interface, then communication timeliness and flexibility are enhanced, but the device complexity increases due to separate data interface and bus interface
Solution Approach 1:
The data interface acts as an intermediary between the wireless communication interface and the electric device. It receives data from the electric device, processes it, and transmits it wirelessly to external communication apparatus, and vice versa. This intermediary role enables autonomous management of wireless communication while maintaining clear separation of functions, thus improving communication timeliness without excessive complexity.
3Adaptability or versatility
If a separate data interface is added for bidirectional communication, then adaptability and communication capability are improved, but the device complexity and number of components increase
Solution Approach 1:
The data interface and wireless communication interface are merged into a single integrated device interface structure on the energy storage module. While they perform distinct functions (data communication vs. wireless communication), they are physically combined in one interface assembly, reducing the overall number of separate components and connections needed, thus improving adaptability without proportionally increasing device complexity.
Data Source
AI summary
An energy storage module for use with an electric device in the shape of an electric hand-held machine tool or a vacuum cleaner, with the energy storage module having a wireless communication interface for wireless communication with an external communication apparatus arranged remote from the energy storage module and a module housing in which an electric storage device with at least one electrically rechargeable storage cell is arranged and on which a device interface is provided for detachable connection of the energy storage module to the electric device, with the device interface having electric device supply contacts for the electric energy supply of the electric device. The device interface of the energy storage module has a data interface separate from the device supply contacts, for data communication with the electric device.