Electronically Commutated Water Pump with Integrated Control Electronics
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Solution Overview
Problem
Conventional water pumps for fountains and garden ponds are externally controlled, leading to slow and imprecise control of water jets, high system costs due to complex wiring and piping, and high running costs as they operate under full load, with existing control methods being expensive and difficult to manage.
Innovation Solution
A water pump equipped with an electronically commutated motor, control and governing electronics, including a speed detection system and processor, allowing for autonomous precise control and efficient operation by integrating intelligence within the pump unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional externally controlled pumps are used, then the system structure is simple, but the control precision and response speed are slow
Solution Approach 1:
The pump is equipped with its own control unit, processor, and memory, enabling it to autonomously regulate its operation without external control signals. This self-service capability allows precise control of water flow while eliminating the need for complex external wiring and control systems.
Solution Approach 2:
The control unit continuously monitors pump operation parameters and adjusts the motor control accordingly to maintain desired performance. This closed-loop feedback mechanism ensures precise control while keeping the system architecture simple.
2Measurement precision
If electric control valves are used for each water outlet, then the control precision is improved, but the system costs and complexity increase
Solution Approach 1:
Each pump unit independently controls its own water flow output through its integrated control system, eliminating the need for separate control valves at each outlet. This approach maintains precise control while significantly reducing system complexity and component count.
Solution Approach 2:
The control function is extracted from the external system and embedded directly into the pump unit itself. This eliminates the need for separate control valves and their associated wiring, achieving both precise control and simplified system architecture.
3Power
If conventional pumps operate under full load, then the power availability is sufficient, but the energy consumption increases
Solution Approach 1:
The pump system dynamically adjusts its operating parameters including speed and power output based on real-time water flow requirements. This allows the system to maintain sufficient power availability when needed while reducing energy consumption during periods of lower demand.
Solution Approach 2:
The control unit modifies operational parameters such as motor speed and power output according to actual water flow requirements. This enables the system to adapt power consumption to match demand, avoiding continuous full-load operation and reducing overall energy consumption.
4Speed
If asynchronous pumps with phase angle control are used, then the speed control is achieved, but the response speed is slow and control difficulty increases
Solution Approach 1:
The pump's integrated control unit autonomously manages speed regulation without requiring complex external phase angle control circuitry. This self-service approach achieves responsive speed control while simplifying the overall system and making it easier to operate.
Solution Approach 2:
The system replaces complex mechanical and electrical phase angle control mechanisms with an electronic control unit that directly manages motor operation. This substitution enables faster response times and easier control while achieving the desired speed regulation.
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 enables precise control of water flow, reduces system costs by minimizing wiring and piping, and lowers energy consumption by adjusting power usage according to demand, achieving efficient and cost-effective operation.
Implementation Method 1
an electric motor that is an electronically commutated motor with rotor and coils
Implementation Method 2
a Hall sensor
Data Source
AI summary
A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.