Single-Motor Pool Robot Propulsion With Directional Clutch Shafts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing pool cleaning robots using fluid reverse propulsion are bulky, heavy, and costly due to the need for separate motors for forward and backward movement, which occupy significant space and increase weight and costs.
Innovation Solution
A power device that uses a single driving motor to drive main driving shafts at both ends, which in turn rotate propellers to generate thrust for forward and backward movement through a clutch mechanism with synchronized rotation and disengagement of propellers based on motor direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate motors are used for forward and backward movement, then the robot can achieve reliable bidirectional propulsion, but the device volume, weight, and cost increase significantly
Solution Approach 1:
The patent combines two separate motor functions into a single motor by using a clutch mechanism that can selectively engage different propellers based on rotation direction. The single motor drives both forward and backward propellers through the clutch device, merging what would traditionally require two separate motors into one integrated system, thereby reducing device volume while maintaining bidirectional propulsion capability
Solution Approach 2:
The single motor is designed to perform multiple functions by controlling the clutch mechanism. The motor can selectively engage the forward propeller for forward movement, the backward propeller for reverse movement, or both simultaneously for stationary positioning. This multi-functionality allows one motor to replace what would traditionally require two separate motors, reducing overall device volume
2Reliability
If separate motors are used for forward and backward movement, then each propulsion function can be optimized independently, but the device weight increases
Solution Approach 1:
The patent merges the functions of two separate motors into a single motor system with a clutch mechanism. By sharing the motor housing, control electronics, and power supply between what would traditionally be two separate motor units, the overall weight is reduced while maintaining the ability to independently control forward and backward propulsion through the clutch engagement mechanism
3Ease of operation
If separate motors are used for forward and backward movement, then each motor can be independently controlled, but the device cost increases
Solution Approach 1:
The patent combines two separate motor control systems into a single motor with a clutch mechanism. This merger reduces the number of motor units, control circuits, and associated components needed, thereby reducing manufacturing costs. The clutch mechanism provides the necessary independent control functionality through mechanical engagement and disengagement based on rotation direction, eliminating the need for two separate motor control systems
4Volume of moving object
If a single motor drives both forward and backward propellers, then the structure is simplified and volume reduced, but the clutch mechanism complexity increases
Solution Approach 1:
The clutch mechanism acts as an intermediary between the single motor and the two propellers. It mediates the power transmission by selectively engaging the forward propeller, backward propeller, or both based on the desired movement direction. This intermediary component enables the simplified single-motor configuration to achieve the functionality of dual motors while managing the inherent complexity through a dedicated control mechanism
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 reduces the device's volume and cost by simplifying the structure while maintaining efficient forward and backward movement, reducing noise and energy consumption.
Implementation Method 1
pool cleaning robots that use fluid reverse propulsion to obtain power in the market achieve forward and backward power respectively through the reverse thrust generated by the work of the front and rear motors for drainage
Implementation Method 2
a driving motor connected to a main control module, synchronous rotating main driving shafts are provided at front and rear ends of the driving motor
Data Source
AI summary
A power device is provided, which includes a driving motor connected to a main control module. Front and rear ends of the driving motor are provided with synchronous rotating main driving shafts. The main driving shafts indirectly drive driven shafts, a clutch device is provided between the main driving shafts and the driven shafts and drives the driven shafts and the main driving shafts to rotate according to a rotation direction of the main driving shafts. Rotating propellers for pushing water are provided on the driven shafts. Compared with existing technology, the power device has main driving shafts extending from two ends of the driving motor. The forward and reverse rotation of the driving motor respectively drives the corresponding rotating propellers on the driven shafts to rotate, discharge water flow, generate reverse thrust, and achieve forward and backward movement. The structure is simple and reduces volume.