Inductive Power Transfer for Filter Elements
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Solution Overview
Problem
Existing systems for powering devices within housings, such as filter elements, face challenges due to the need for reliable power supply without physical connections, especially in conditions like fluid flow and temperature, where traditional power connectors are unreliable and prone to contamination.
Innovation Solution
The system employs inductive coupling using conductive coils within the housing and filter element, allowing power transfer without physical connections, and includes energy storage components to manage power usage and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If physical power connectors are used to supply power to devices within housings, then power can be transmitted, but the connectors are prone to contamination and poor connections in conditions like fluid flow and temperature
Solution Approach 1:
The patent replaces the mechanical connector system with an inductive coupling system using electromagnetic fields. Power is transmitted wirelessly through inductive coupling between a transmitter in the housing and a receiver in the filter element, eliminating physical connectors that are susceptible to contamination and poor connections in harsh environments.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer power between the housing and the filter element. The inductive coupling system uses magnetic fields as the intermediary to convey energy without direct physical contact, thereby avoiding contamination issues associated with traditional electrical connectors.
2Object-affected harmful factors
If inductive coupling is used to transfer power without physical connections, then contamination is prevented, but the system requires conductive coils and energy storage components
Solution Approach 1:
The inductive coupling system serves multiple functions: it provides power transmission, enables wireless communication, and allows for component identification. The same electromagnetic coupling mechanism that transfers power also facilitates data exchange and signaling, reducing the need for separate dedicated connectors for each function.
3Use of energy by moving object
If small batteries are used to power devices within housings, then the system is simple, but the power provided is insufficient for many applications
Solution Approach 1:
The patent replaces battery-based power supplies with inductive power transfer. Instead of relying on finite battery capacity, the system continuously receives power from the external housing through electromagnetic coupling, providing unlimited power availability without the weight and replacement issues of batteries.
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 method provides a reliable and contamination-free power supply to devices within housings, extending system usability and reducing the risk of poor connections, while enabling various applications including sensing and wireless communication.
Implementation Method 1
Current is then passed through the coil in the housing base. Through induction, a current is created in the second coil in the filter element, in much the same way as a transformer functions.
Data Source
AI summary
The present invention describes a system and method for supplying electrical power to a device, such as a filter element, located within a housing. In one embodiment, a conductive coil is embedded into the housing base, and a second coil is embedded into the filter element. Current is then passed through the coil in the housing base. Through induction, a current is created in the second coil in the filter element, in much the same way as a transformer functions. This inductive field may interfere with the operation of the various electronic functions, such as communications, sensing or other activities. To overcome this issue, an energy storage component, such as a capacitor, is included in the filter electronics. In this way, the power generated by the inductive field can be stored, and used when the inductive field is no longer present.