Detachable Vacuum Battery Layout for Compact High-Voltage Packs
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Solution Overview
Problem
Existing handheld vacuum cleaners require disassembly to separate the power supply, have a large volume due to parallel battery cell arrangement, and limited maximum voltage supply, leading to inefficiencies in weight distribution and performance.
Innovation Solution
A handheld vacuum cleaner design with a battery housing positioned under the handle, allowing battery cells to be arranged in a zigzag pattern within separate rows, featuring a battery management unit and conductive plates for efficient voltage management, and a compact frame with contact ribs for improved cooling and weight distribution.
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 supply 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 conductive plates positioned between layers to collect voltage. This dimensional change allows more cells to be packed into a compact volume while achieving higher maximum voltage through series connection of cells across layers.
Solution Approach 2:
The patent implements a nested structure where conductive plates are embedded between battery cell layers. The conductive plates are positioned within the battery housing space, nesting the voltage collection function inside the battery structure itself. This allows efficient voltage management without increasing external volume.
2Device complexity
If the power supply is integrated into the cleaner body, then the structure is compact, but the power supply cannot be separated for charging
Solution Approach 1:
The patent divides the power supply into a separable battery module that can be detached from the cleaner body. The battery housing with stacked cells and conductive plates forms an independent unit that can be removed and recharged separately, while the cleaner body contains the motor and control components. This segmentation enables convenient charging without disassembling the entire device.
3Volume of moving object
If battery cells are densely packed to reduce volume, then the size is compact, but cooling performance deteriorates
Solution Approach 1:
The patent introduces conductive plates as intermediary elements between battery cell layers. These plates serve dual functions: collecting voltage from multiple cells through electrical conduction and facilitating heat dissipation through thermal conduction. The plates create thermal pathways that enable cooling of densely packed cells without increasing overall battery volume.
4Reliability
If battery cells are arranged in multiple rows with separation walls, then cell protection is improved, but the device complexity increases
Solution Approach 1:
The patent combines the separation wall function with the conductive plate structure. Instead of adding separate division walls between cell rows, the conductive plates serve both as voltage collection elements and as structural dividers that naturally separate cell rows. This merging reduces the number of separate components while maintaining cell protection and organization.
Data Source
AI summary
The present invention relates to a cleaner. A cleaner according to an aspect may include a battery housing and a battery separably coupled to the battery housing. The battery may include a frame, a plurality of battery cells received in the frame, a battery holder surrounding the plurality of battery cells and including a separation wall to divide the plurality of battery cells in a plurality of rows.