Electrical connector, fluid state test device and fluid heat exchange system
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Solution Overview
Problem
Conventional electrical connectors in fluid heat exchange systems experience vibration-induced faults due to fluid flow, leading to short-circuits and complex connection processes, and existing solutions either disrupt the fluid flow field or require additional sensors that affect measurement accuracy.
Innovation Solution
An electrical connector with integrated temperature sensing elements and a frequency calculation unit that measures fluid flow speed, pressure, and vibration frequency without altering the fluid flow field, allowing for simultaneous electrical connection and fluid state monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical connector is placed in the fluid channel to connect electric heating tubes, then electrical connection is achieved, but the connector causes forced vibration and resonance due to fluid flow, leading to disengagement and short-circuit faults
Solution Approach 1:
The patent extracts the electrical connector from the direct fluid flow path by positioning it at the upstream end of the fluid channel, where it connects to the electric heating tube electrodes without being subjected to the full force of fluid flow. This extraction eliminates the resonance and forced vibration problems while maintaining electrical connection functionality.
Solution Approach 2:
The patent introduces an intermediary structure (the upstream end positioning and connection mechanism) that mediates between the electrical connection requirement and the fluid flow environment. The connector serves as a mediator that achieves electrical connection without directly exposing the connection interface to harmful fluid-induced vibrations.
2Object-affected harmful factors
If the electrical connector is extracted radially from the fluid channel to avoid vibration, then vibration is reduced, but connection and fixing processes become complex with many joints
Solution Approach 1:
The patent merges the electrical connection function with the fluid channel structure by integrating the connector into the upstream end of the channel. This consolidation eliminates the need for separate radial extraction and multiple joints, reducing connection complexity while maintaining vibration reduction benefits.
3Measurement precision
If additional sensors are added to monitor fluid state, then measurement accuracy is improved, but the sensors disrupt the fluid flow field
Solution Approach 1:
The patent enables the electrical connector to perform self-monitoring functions by measuring temperature differences across its own structure. This self-service approach eliminates the need for additional external sensors that would disrupt the fluid flow field, while still achieving accurate fluid state measurement through the connector's inherent position and structure.
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 effectively suppresses vibrations and accurately monitors fluid states within the electrical connector, enhancing the reliability and efficiency of fluid heat exchange systems by integrating sensing functions without disrupting the fluid flow or requiring additional sensors.
Implementation Method 1
a first temperature sensing element and a second temperature sensing element which are respectively provided at mutually opposite positions on the first side and the second side in an electrically insulated manner
Implementation Method 2
An electric heating tube (or called a metal tubular electric heating element) is a charged element configured to convert electrical energy into thermal energy
Data Source
AI summary
An electrical connector includes a main body portion, connection portions, a first temperature sensing element and a second temperature sensing element. The connection portions allow the main body portion to be electrically connected to a charged element provided in a flow channel. The main body portion includes a first side and a second side which are parallel to a flow direction of fluid. The first temperature sensing element and the second temperature sensing element are provided at mutually opposite positions on the first side and the second side in an electrically insulated manner. A fluid state test device having the electrical connector and a fluid heat exchange system are further provided. Thus, the original flow field where the electrical connector of the electrode of the electric heater is located may not change, and destruction to the flow field is avoided.