Pool Cleaner Pump Active Emptying Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pool cleaning apparatuses require a significant amount of time to empty the hydraulic circuit, making them cumbersome and difficult for users, especially children and elderly individuals, due to slow water discharge via gravitational force, leading to ergonomic and safety issues.
Innovation Solution
A pool cleaning apparatus with an on-board electric driving and pumping system that maintains the pumping device in an active state after removal from the liquid to accelerate the emptying of the hydraulic circuit, utilizing a monitoring device and processing unit to detect removal signals and control the pumping device for efficient emptying, ensuring at least 50% of the hydraulic circuit is emptied within a predetermined time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If passive gravitational discharge is used to empty the hydraulic circuit, then the apparatus structure remains simple, but the emptying time becomes excessively long and the user must bear the full weight of the apparatus with water for a significant duration
Solution Approach 1:
The pumping device continues to operate after the apparatus is removed from the pool to actively discharge the remaining water from the hydraulic circuit. This preliminary action of continued pumping eliminates the need for prolonged manual holding and reduces the overall emptying time without requiring additional emptying devices
Solution Approach 2:
The pumping device maintains its useful action of water discharge even after the apparatus is removed from the pool. By keeping the pump running for a predetermined period after removal, the system continuously empties the hydraulic circuit rather than relying solely on passive gravitational flow, thereby reducing emptying time
2Volume of moving object
If the discharge opening in the shell is made narrow, then the apparatus structure remains compact, but the water discharge speed becomes slow and the emptying process is prolonged
Solution Approach 1:
The pumping device uses hydraulic principles to actively force water through the discharge opening at higher speeds. By maintaining pump operation after removal, the system overcomes the limitation of narrow opening geometry and achieves rapid water discharge without increasing the opening size or apparatus volume
3Device complexity
If the pumping device is stopped immediately after apparatus removal, then the device complexity remains low, but the hydraulic circuit cannot be emptied efficiently and the user bears excessive weight for longer periods
Solution Approach 1:
The control unit receives feedback from the monitoring device that detects when the apparatus is removed from the pool. Based on this feedback, the control unit automatically extends the pump operation for a predetermined period to ensure complete hydraulic circuit emptying, thereby reducing user burden without requiring complex manual control mechanisms
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 significantly reduces the emptying time of the pool cleaning apparatus, minimizing the weight and effort required for users to remove the apparatus from the pool, enhancing ergonomics and safety by ensuring faster and more efficient water discharge.
Implementation Method 1
a monitoring device which is adapted to be able to provide electronic monitoring signals
Implementation Method 2
a liquid pumping device... a circulation of liquid between at least one liquid inlet into the body and at least one liquid outlet, called the pumping outlet, out of the body via at least one cleaning device
Implementation Method 3
the discharge of the water is slow, and even slower if the discharge opening in the shell is narrow. The user removing the apparatus from the pool must therefore lift the weight of the apparatus and the water which it contains for a significant length of time
Data Source
AI summary
The invention relates to a pool cleaning apparatus and a method for controlling such an apparatus comprising a body, a liquid inlet, a liquid outlet, a drive device, a pumping device, a hydraulic circuit between a liquid inlet and a pumping outlet and via a cleaning device, a monitoring device providing electronic signals which are representative of a state of the apparatus, an electronic signal processing unit receiving and analyzing the signals of the monitoring device and controlling the pumping device, wherein, on detection of a removal event of the body from the liquid, the processing unit stops the pumping device after a predetermined emptying time in order to allow active emptying of the hydraulic circuit.