Floor Cleaning Device Battery Cooling Using Liquid Container Heat Sink
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Solution Overview
Problem
Existing cleaning devices face issues with excessive heating of energy storage units, particularly rechargeable batteries, leading to undesirably high operating temperatures and prolonged cooling times, which hinder efficient recharging.
Innovation Solution
Incorporating a cooling device thermally connected to the energy storage device, such as a passive cooling element or heat sink, to directly dissipate heat to a liquid container filled with coolant, allowing for efficient heat transfer and reduced operating temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the energy storage device operates continuously, then productivity is improved, but the operating temperature increases excessively
Solution Approach 1:
The patent introduces a cooling device as an intermediary component between the energy storage device and the environment. This cooling device actively manages heat transfer, allowing continuous operation while preventing excessive temperature buildup. The cooling device acts as a mediator that enables productivity improvement without the harmful side effect of overheating.
2Device complexity
If the energy storage device is cooled passively, then device complexity is reduced, but cooling efficiency is insufficient
Solution Approach 1:
The cooling device is designed to operate autonomously without requiring external control systems or additional energy input. It utilizes natural convection and thermal conduction principles to self-regulate the cooling process. This self-service approach maintains simplicity while achieving reliable cooling through passive thermal management mechanisms.
3Ease of manufacture
If air cooling is used for the energy storage device, then ease of manufacture is improved, but cooling efficiency is insufficient
Solution Approach 1:
The patent transitions from air cooling to liquid cooling by introducing a cooling device that circulates coolant through thermal contact with the energy storage device. Liquid coolant provides superior heat capacity and thermal conductivity compared to air, dramatically improving cooling efficiency while maintaining manufacturing feasibility through standardized liquid cooling components.
4Temperature
If the energy storage device heats up, then operating temperature increases, but recharging time increases significantly
Solution Approach 1:
The cooling device operates continuously during the energy storage device's operation, performing preliminary cooling action before recharging is needed. This prevents temperature buildup that would otherwise require extended cooling periods before recharging can begin, thereby eliminating idle time loss and enabling seamless operation-recharging cycles.
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
This approach significantly shortens cooling times before recharging, minimizes battery aging, and eliminates the need for air cooling, while maintaining optimal operating conditions for the energy storage device.
Implementation Method 1
at least one cooling device (46) arranged or formed in a thermally connected manner with the at least one energy storage device (44) for cooling the at least one energy storage device (44)
Implementation Method 2
transfer heat generated in the at least one energy storage device during operation of the cleaning device to the at least one liquid container (38), and especially to the liquid (42) contained therein
Data Source
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AI summary
The invention relates to a cleaning device (10), in particular in the form of a floor cleaning device (12), comprising at least one electrical consumer (16, 18, 30), at least one energy storage device (44) for supplying the at least one electrical consumer (16, 18, 30) with electrical energy, and at least one liquid container (38) with a container receiving space (40) for receiving a liquid (42) which can be applied to a surface (28) to be cleaned or received from a surface (28) to be cleaned by the cleaning device (10), wherein the cleaning device (10) comprises at least one cooling device (46) arranged or designed to be thermally connected with the at least one energy storage device (44) for cooling the at least one energy storage device (44).