cleaner
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Solution Overview
Problem
Current cleaners face limitations in battery recharging due to safety hazards from strong power level voltages, restricted usage time, and difficulty in providing high suction force, while existing solutions require complex battery management and safety precautions.
Innovation Solution
A cleaner design featuring two or more batteries connected in series for discharge and in parallel for charging, with a power supply circuit that includes switching units and diodes to safely manage power levels, allowing for strong power output during use and weak power recharging, and an ascending/descending mechanism for stable recharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If batteries are connected in series to provide high voltage for strong power output, then power capability is improved, but safety hazards increase during recharging
Solution Approach 1:
The patent applies dynamic switching between series and parallel battery configurations based on operational mode. During cleaning operation, batteries are connected in series to provide high voltage (e.g., 18V) for strong power output. During recharging, the system automatically switches to parallel connection to reduce voltage to a safe level (e.g., 9V), eliminating safety hazards while maintaining the ability to deliver high power when needed
Solution Approach 2:
The invention changes the electrical connection parameter (series/parallel configuration) of the battery system based on operational requirements. This parameter change allows the same battery system to safely operate at high voltage for power-intensive cleaning tasks while transitioning to low voltage for safe recharging, effectively resolving the contradiction between power capability and safety
2Device complexity
If a single battery is used to simplify the system, then device complexity is reduced, but usage time is limited
Solution Approach 1:
The patent merges multiple batteries into a single integrated power system with unified control. The battery management unit consolidates charging control, voltage regulation, and switching operations into one centralized system, managing multiple batteries as a unified entity rather than separate independent units, thereby maintaining simplicity while extending usage time through combined battery capacity
3Force
If high voltage is provided to motor loads for strong suction force, then cleaning performance is improved, but safety hazards during recharging increase
Solution Approach 1:
The system dynamically adjusts battery configuration based on operational state. During cleaning operation, the high-voltage series connection provides strong suction force for effective cleaning performance. During recharging, the system automatically transitions to low-voltage parallel connection, eliminating safety hazards while maintaining the capability to deliver high suction force when actively cleaning
4Volume of moving object
If multiple batteries are managed separately to reduce individual battery size, then battery pack size is reduced, but recharging safety becomes more difficult
Solution Approach 1:
The battery management unit serves as an intermediary that coordinates the recharging process of multiple batteries. It implements unified voltage regulation and switching control, ensuring that all batteries are charged at safe voltage levels while maintaining balanced charging across individual cells. This intermediary control system enables safe recharging of compact multi-battery configurations
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 safe and effective recharging of batteries at a weak power level, providing high voltage to motor loads for strong power output, while allowing both automatic and manual cleaning modes, enhancing user convenience and recharging stability.
Implementation Method 1
A cleaner design featuring two or more batteries connected in series for discharge and in parallel for charging, with a power supply circuit that includes switching units and diodes to safely manage power levels
Data Source
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AI summary
A cleaner includes a cleaner body, a power supply including a first battery and a second battery that are accommodated in the cleaner body, and a power supply circuit configured to operate in a charge mode for receiving power from the outside to recharge the first and second batteries or in a discharge mode for supplying the power recharged in the first and second batteries to a load, a charging terminal connected to an external charging stand and configured to supply direct current (DC) power recharged in the first and second batteries to the power supply, and a controller configured to control an operation of the power supply.