Electric robot for pool cleaning
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Solution Overview
Problem
Existing electric pool cleaning robots have complex structures and high production costs due to multiple motors and complex steering mechanisms.
Innovation Solution
An electric robot with a simplified steering drive structure featuring a volute assembly with an impeller and motor assembly capable of outputting positive and negative torques, along with a limit structure to control rotation angles, and a seat with a drive wheel and sensing element for autonomous direction changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple motors and complex steering mechanisms are used to control steering motions, then the robot can achieve multi-directional movement, but the structure becomes complex and production cost increases
Solution Approach 1:
The patent combines the steering and propulsion functions into a single integrated water outlet structure. By rotating the water outlet assembly, the robot can change both its movement direction and propulsion direction simultaneously, eliminating the need for separate steering mechanisms and multiple motors that would otherwise be required to achieve multi-directional movement.
Solution Approach 2:
The water outlet assembly serves multiple functions: it acts as both the propulsion source (by directing water flow) and the steering mechanism (by rotating to change direction). This multi-functional design allows the robot to achieve complex multi-directional movement with a simplified structure, directly resolving the contradiction between versatility and complexity.
2Ease of operation
If multiple motors and complex steering mechanisms are used to drive caterpillar track for steering, then the robot can control steering motions, but production cost increases
Solution Approach 1:
The patent merges the steering control function with the existing water outlet propulsion system. The same motor that drives water flow for propulsion also rotates the water outlet assembly for steering, eliminating the need for additional motors and complex steering mechanisms, thereby reducing production cost while maintaining steering control capability.
Solution Approach 2:
The water outlet assembly performs steering control by utilizing its own rotational capability. The system steers itself by redirecting the water flow through rotation of the assembly, without requiring external steering mechanisms or additional actuators, thus simplifying manufacturing and reducing cost.
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 results in a simpler, more cost-effective pool cleaning robot with fewer parts and improved efficiency in steering and water flow management.
Implementation Method 1
a motor assembly (6) capable of outputting positive and negative torques... the motor assembly (6) is provided on the base, and connected to the impeller assembly (2) through an output shaft
Implementation Method 2
the impeller assembly (2) is provided with a plurality of rotatable blades... the volute assembly (1) comprises a casing and an impeller assembly (2) provided therein; a water outlet (7) is provided on a side of the casing, and a water outlet channel is provided inside the casing to allow water to flow through the impeller assembly (2)
Implementation Method 3
the volute assembly (1) is rotatably provided above the base and communicates with the water inlet channel... the water outlet (7) is provided on a side of the casing
Data Source
AI summary
The invention relates to electric robots, and more particularly to a electric robot for pool cleaning, including a base with a water inlet channel, a volute assembly and a motor assembly capable of outputting positive and negative torques; where the volute assembly is rotatably provided above the base and communicates with the water inlet channel; the volute assembly includes a casing and an impeller assembly provided therein; a water outlet is provided on a side of the casing, and an water outlet channel is provided inside the casing to allow water to flow through the impeller assembly; the motor assembly is provided on the base, and connected with the impeller assembly through an output shaft; and an upper end surface of the base is provided with a limit structure for limiting a rotation angle of the volute assembly.