Pump Assembly 3D Rotary Sensor Single Circuit Board Integration
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Solution Overview
Problem
Conventional pump assemblies require two circuit boards for rotary sensor detection, leading to increased cooling and functional risks, as well as higher costs due to the need for connections between them.
Innovation Solution
A pump assembly with a 3D rotary sensor mounted on a single circuit board oriented axially, allowing detection of motion parallel and perpendicular to its face, eliminating the need for a second board and reducing complexity and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two circuit boards are used for rotary sensor detection, then motion detection capability is improved, but device complexity and connection requirements increase
Solution Approach 1:
The patent combines the rotary sensor and controller circuitry onto a single circuit board, eliminating the need for separate sensor and controller boards. This integration maintains full motion detection capability while reducing device complexity and eliminating inter-board connections.
Solution Approach 2:
The single circuit board is designed to perform multiple functions: it serves as both the controller board and the sensor mounting board. The circuit board universally handles both control signal generation and rotary motion detection, replacing the need for specialized separate boards.
2Measurement precision
If two circuit boards are used for rotary sensor detection, then motion detection capability is improved, but cooling efficiency and functional reliability deteriorate
Solution Approach 1:
By merging the sensor and controller onto one board, the patent eliminates thermal interfaces between separate boards, improving heat dissipation paths and reducing cooling risks. The integrated design also eliminates connection points that could fail, enhancing functional reliability.
3Measurement precision
If two circuit boards are used for rotary sensor detection, then motion detection capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent reduces manufacturing cost by consolidating two circuit boards into one, eliminating the need for separate sensor board and controller board assembly. This single-board design reduces component count, assembly steps, and inter-board connection requirements, directly lowering manufacturing expenses.
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
This configuration enhances cooling efficiency, reduces the risk of damage, and lowers costs by integrating motion detection in three axes on a single board, improving design flexibility and reducing the need for additional components and connections.
Implementation Method 1
A 3D rotary sensor is mounted on the first side of the circuit board. The 3D rotary sensor has a front face positioned parallel to the first side of the circuit board such that the front face faces the radial direction. The 3D rotary sensor is configured to detect (a) motion parallel to its front face and (b) motion in a plane perpendicular to its front face, including rotary motion of the pump
Data Source
AI summary
A pump assembly and a method for sensing rotary motion of the pump therein are disclosed. The pump assembly includes a pump, a controller, and an optional driven electric motor. The components may be axially aligned and mounted relative to one another. The controller includes a circuit board that is oriented in an axial direction of the pump assembly so that it faces in a radial direction. A 3D rotary sensor is mounted on the circuit board and is designed to detect motion parallel to its front face and motion in a plane perpendicular to its front face, including rotary motion of the pump, for output to the controller. The controller is configured to control the pump via controlling the drive shaft of the motor or pump.