Handheld Vacuum Cleaner Battery Housing with Quick-Release Mounting
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Solution Overview
Problem
Existing handheld vacuum cleaners require disassembly to separate the power supply, leading to a large volume occupied by the power supply and limited maximum voltage for the suction motor due to parallel battery cell arrangement.
Innovation Solution
A cleaner design with a battery housing that allows easy mounting and separation of batteries, featuring a battery management unit, elastically deformable clip terminals for stable contact, and a configuration that prevents circuit board deformation, enabling efficient power supply and voltage management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If battery cells are laid in parallel on one layer, then the power supply volume is large, but the maximum voltage supplied to the suction motor is small
Solution Approach 1:
The patent transitions from a single-layer parallel arrangement to a multi-dimensional stacked configuration where battery cells are arranged in multiple layers vertically. This dimensional change allows the same number of cells to occupy less horizontal space while maintaining the parallel connection for voltage output, effectively reducing the power supply volume without compromising the maximum voltage capability.
Solution Approach 2:
The patent implements a nested arrangement where battery cells are stacked vertically one on top of another within a compact housing structure. Each layer of battery cells is nested within the vertical space of the power supply assembly, allowing efficient use of three-dimensional space. This nesting approach reduces the overall footprint and volume of the power supply while maintaining all electrical connections.
2Ease of operation
If the cleaner is disassembled to separate the power supply, then the power supply can be replaced, but the operation becomes complex and time-consuming
Solution Approach 1:
The patent divides the cleaner into distinct modular segments, with the battery pack designed as a separable unit from the main body. The battery housing includes dedicated coupling and decoupling structures that allow the battery module to be detached independently without requiring disassembly of the entire cleaner. This segmentation enables simple battery replacement while maintaining overall system integrity.
Solution Approach 2:
The patent extracts the battery replacement operation from the complex disassembly process by providing a dedicated quick-release mechanism. The battery can be removed by simply actuating a release latch or button that disengages the coupling between the battery housing and main body, eliminating the need to dismantle other components. This extraction principle makes battery replacement a standalone simple operation.
3Ease of operation
If the battery is frequently mounted and separated, then the battery can be replaced easily, but the contact between battery terminal and main body terminal becomes unstable
Solution Approach 1:
The patent incorporates elastic deformable clip terminals that can dynamically adapt to mounting and separation forces. The clip terminals are designed with elastic properties allowing them to flex during the coupling and decoupling processes, then return to their original position to maintain stable electrical contact. This dynamic behavior enables frequent battery changes while preserving contact reliability through the material's elastic recovery capability.
Solution Approach 2:
The patent utilizes the elastic parameter (deformability) of the clip terminals to resolve the contradiction. The clip terminals are made from materials with specific elastic properties that allow temporary deformation during battery installation and removal, but maintain sufficient rigidity to ensure stable electrical contact during operation. By carefully selecting and designing the elastic parameters of the terminal material and geometry, the system achieves both ease of replacement and contact stability.
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 solution allows for stable battery connection and separation, preventing circuit board deformation, and optimizing power supply efficiency, thus enhancing the cleaner's performance and usability.
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
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.