Removable Vacuum Cleaner Battery Pack With Elastic Clip Terminals
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Solution Overview
Problem
Existing handheld vacuum cleaners face challenges in increasing the number of battery cells without expanding the device's size or outer dimensions, and require disassembly to separate the power supply, leading to inefficiencies in power distribution and battery management.
Innovation Solution
A cleaner design featuring a battery housing with separable battery compartments, elastic clip terminals for stable contact, and a battery management unit that allows for easy battery insertion and removal, preventing circuit board deformation and improving contact reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If battery cells are arranged in parallel on one layer, then the power supply structure is simple, but the volume occupied is large and the maximum voltage is limited
Solution Approach 1:
The patent transitions from a single-layer parallel arrangement to a multi-dimensional stacked configuration. Battery cells are arranged in multiple layers vertically, with each layer containing parallel-connected cells. This dimensional change allows increasing the number of cells and achieving higher voltage through series connection between layers, while maintaining a compact footprint volume.
Solution Approach 2:
The patent implements a nested arrangement where battery cells are stacked vertically in multiple layers, with each layer nested within the vertical space of the power supply housing. This nesting approach maximizes the use of available volume by utilizing the vertical dimension, allowing more cells to be packed into the same footprint area.
2Device complexity
If the power supply is integrated into the cleaner body, then the structure is compact, but disassembly is required to separate the power supply
Solution Approach 1:
The patent divides the power supply into a modular battery pack that can be independently removed from the cleaner body. The battery pack is designed as a separate module with its own housing, allowing users to easily detach and attach it without disassembling the entire cleaner. This segmentation maintains the compact integrated appearance during use while enabling simple separation when needed.
Solution Approach 2:
The patent implements a dynamic coupling mechanism between the battery pack and cleaner body, allowing the connection state to change from integrated to separated. The coupling structure includes movable components that enable easy attachment and detachment, transitioning the system from a fixed integrated state to a flexible separable state based on operational needs.
3Adaptability or versatility
If battery terminals are frequently connected and disconnected, then battery replacement is flexible, but contact reliability deteriorates
Solution Approach 1:
The patent incorporates elastic elements in the terminal connection structure that provide pre-compression force to maintain consistent contact pressure. This elastic cushioning compensates for wear and dimensional variations that occur during repeated connections and disconnections, ensuring stable electrical contact throughout the product lifecycle.
Solution Approach 2:
The patent utilizes the elastic deformation property of the terminal materials, changing the physical state from rigid to flexible. The elastic terminals can deform to accommodate slight misalignments and maintain optimal contact pressure, adapting the contact parameters dynamically to preserve reliability despite frequent operations.
4Quantity of substance
If battery cells are increased in number, then the power capacity increases, but the containment volume increases
Solution Approach 1:
The patent arranges battery cells in a multi-layer vertical stack rather than a single horizontal layer. This dimensional reorganization allows increasing the number of cells by utilizing the vertical space within the containment, thereby increasing power capacity without proportionally increasing the footprint volume of the containment.
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
Enables independent battery charging, enhances contact reliability, and prevents circuit board deformation, allowing for efficient power distribution and increased battery capacity without increasing the device's size.
Implementation Method 1
a first clip terminal that is elastically deformable and has a first contact portion; and a second clip terminal that is elastically deformable and has a second contact portion
Data Source
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AI summary
A cleaner includes: a battery housing: a main body terminal that is disposed in the battery housing; and a battery that is separably coupled to the battery housing, wherein the battery includes: a plurality of battery cells; a battery management unit to manage voltage of the battery cells; and a battery terminal that is connected to the battery management unit and is connected to the main body terminal when the battery is inserted into the battery housing.