Motor-Pump System Integrated Sensor Board Inductive Sensing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current motor-pump systems lack integrated electronics for efficient control and signal transmission, leading to inefficiencies in hydraulic fluid management and motor operation.
Innovation Solution
A motor-pump system with an integrated sensor board, control board, and annular bus bar for inductive signal sensing and three-phase current management, along with a hydraulic manifold for fluid management, enabling precise control and efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If traditional motor-pump systems are used without integrated electronics, then the device complexity is lower, but the control efficiency and monitoring capability are insufficient
Solution Approach 1:
The patent combines the sensor board, control board, and power distribution functions into an integrated electronic control unit that is directly mounted on the pump housing. This merging of multiple separate components (sensors, controllers, power distribution) into a single integrated unit improves control efficiency and monitoring capability while managing device complexity through functional integration.
Solution Approach 2:
The integrated electronics unit serves multiple functions simultaneously: it houses sensors for monitoring pump operation, contains control logic for motor control, and provides power distribution through the annular bus bar. This multi-functionality approach allows a single component to replace multiple separate systems, improving automation while controlling overall system complexity.
2Reliability
If separate wiring systems are used for power and control signals, then the ease of manufacture is higher, but the signal transmission efficiency and system reliability are reduced
Solution Approach 1:
The patent introduces an annular bus bar as an intermediary component that provides a dedicated, low-impedance path for power and control signals between the motor and control electronics. This intermediary structure improves signal transmission efficiency and system reliability by separating high-current power paths from low-voltage control paths, while the modular bus bar design maintains ease of manufacture through standardized fabrication processes.
3Measurement precision
If integrated electronics are added to the motor-pump system, then the monitoring precision and control accuracy are improved, but the device complexity increases
Solution Approach 1:
The patent implements local quality by placing sensors and control electronics directly at the pump motor location, enabling precise local monitoring of actual pump operating conditions (temperature, pressure, flow). This localized measurement approach improves monitoring precision without requiring complex centralized systems, as each sensor provides targeted data about its specific measurement point.
Solution Approach 2:
The patent replaces traditional mechanical monitoring systems with electronic sensors and digital control. Instead of mechanical gauges and manual monitoring, the system uses electronic sensors to detect pump operation parameters and digital control for motor management. This substitution improves measurement precision and enables more accurate control while managing complexity through electronic integration.
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
Enhances the control and monitoring of the motor-pump system, improving hydraulic fluid management and motor efficiency through integrated electronics and signal transmission, allowing for better performance and reliability.
Implementation Method 1
The sensor board includes a plurality of sensor traces for inductively sensing a signal from the non-ferrous sensor target when the outer gerotor is rotated
Data Source
AI summary
A motor-pump system includes a first housing part, a hydraulic pump, an electric motor, and a sensor board. The hydraulic pump includes an outer gerotor rotationally supported on the first housing part and an inner gerotor rotationally supported on the first housing part. The electric motor includes a stator assembly rotationally fixed in the first housing part and a rotor assembly with a non-ferrous sensor target, fixed to the outer gerotor. The sensor board includes a plurality of sensor traces for inductively sensing a signal from the non-ferrous sensor target when the outer gerotor is rotated.