Electrical device, in particular suction device or machine tool
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Solution Overview
Problem
The low electrical power density of rechargeable energy storages results in bulky energy storage devices, necessitating large receptacles that hinder ease of use and mobility in electrical devices.
Innovation Solution
The device interfaces for energy storages are arranged on opposite side walls of the energy storage receptacle, allowing a 'bottom to bottom' configuration, providing an operating space and facilitating easier access and connection of multiple energy storages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple energy storages are arranged in the energy storage receptacle to increase electrical power, then the electrical power is improved, but the receptacle volume increases making the energy storages difficult to grasp and remove
Solution Approach 1:
The patent transitions from a conventional side-by-side arrangement of energy storages to a bottom-to-bottom configuration where the bottom walls of the energy storages face each other. This dimensional reorganization allows the side walls to protrude laterally, creating accessible operating spaces that facilitate grasping and removal while maintaining compact overall volume for accommodating multiple energy storages.
2Power
If the energy storage receptacle is made large to accommodate multiple energy storages, then the electrical power is improved, but the device size increases affecting mobility
Solution Approach 1:
By arranging energy storages in a bottom-to-bottom configuration rather than side-by-side, the patent enables more efficient spatial utilization. The side walls protruding laterally create usable operating spaces without significantly increasing the overall receptacle volume, allowing multiple energy storages to be accommodated in a compact arrangement that maintains device mobility.
3Ease of operation
If device interfaces are arranged on opposite side walls for bottom-to-bottom configuration, then the ease of operation is improved, but the electrical wiring complexity increases
Solution Approach 1:
The bottom-to-bottom arrangement with device interfaces on opposite side walls requires electrical wiring to traverse through the housing to connect both interfaces. While this creates increased wiring complexity compared to adjacent interface arrangements, it enables the beneficial bottom-to-bottom energy storage configuration that provides accessible operating spaces and improved ease of operation.
Data Source
AI summary
An electrical device, in particular in the form of a suction device (10) or a machine tool, with a housing (20) in which at least one electrical load, in particular an electric drive motor (11D), is arranged, wherein the electrical device has a power supply unit (80) with an energy storage receptacle (81), for the electrical power supply of the electrical load, in particular the drive motor (11D), in the interior of which at least two device interfaces (90A, 90B) for the detachable connection of a respective energy storage interface (190A, 190B) of an electrical energy storage (170A, 170B), in particular a battery pack, are arranged. The device interfaces (90A, 90B) are arranged on opposite side walls (83, 84) of the energy storage receptacle (81), so that the energy storages (170A, 170B) can be arranged on the device interfaces (90A, 90B) with mutually facing bottom walls (175).