Magnetic Probe Joint Structure for Thermal Analyzer Handling
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Solution Overview
Problem
Existing thermal analyzers using detachable probes made of quartz glass or ceramic face issues with probe breakage during attachment and detachment due to the risk of falling, and require skilled handling to avoid this.
Innovation Solution
The thermal analyzer employs magnetic connections between the probe joint and connecting joint using permanent magnets, electromagnets, or paramagnetic materials to attract and secure the probe, allowing for easy attachment and detachment without manual holding, and includes a magnetic shield to prevent interference with displacement detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a detachable structure with male and female threads is used to connect the probe and load transmission shaft, then the probe can be detached for replacement, but the probe may fall and break during attachment and detachment operations
Solution Approach 1:
The patent replaces the traditional mechanical screw connection system with a magnetic field-based connection system. Magnets embedded in the connecting joint and probe joint create magnetic attraction forces that securely hold the probe to the load transmission shaft, eliminating the need for manual screwing operations and preventing probe drop during attachment and detachment.
Solution Approach 2:
The patent introduces magnetic fields as an intermediary force between the connecting joint and probe joint. The magnetic attraction acts as a mediating mechanism that provides secure connection without direct mechanical contact during the attachment process, allowing hands-free operation and preventing probe falling.
2Reliability
If traditional screw connection is used, then the probe can be securely attached, but skilled handling is required to prevent probe falling during attachment
Solution Approach 1:
The patent replaces the manual screwing operation with automatic magnetic attraction. When the probe joint approaches the connecting joint, the magnets automatically generate sufficient attractive force to secure the connection without requiring the operator to manually hold or twist components, making the operation simple and accessible to unskilled personnel.
Solution Approach 2:
The magnetic connection system performs the connection function automatically through magnetic attraction forces. The system self-secures the probe to the load transmission shaft when brought into proximity, eliminating the need for manual dexterity or specialized skills to perform the attachment correctly.
3Ease of operation
If magnets are used to connect the probe and load transmission shaft, then attachment is simplified, but magnetic force may interfere with displacement detection mechanism
Solution Approach 1:
The patent extracts the magnetic connection function to specific localized positions at the ends of the load transmission shaft and probe, separating it from the displacement detection mechanism. This spatial separation ensures that the magnetic fields are confined to the connection regions and do not interfere with the measurement area, maintaining detection precision while providing easy attachment.
4Stability of the object's composition
If quartz glass or ceramic probes are used, then thermal expansion is reduced, but the probes are more prone to breakage during handling
Solution Approach 1:
The magnetic attraction force acts as a counteracting force to gravity and handling stresses. The magnetic field provides a holding force that prevents the fragile quartz glass or ceramic probe from falling or experiencing mechanical impact during attachment and detachment operations, compensating for the material's lower mechanical strength.
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 design prevents probe breakage during attachment and detachment, simplifies the process, and maintains measurement precision by minimizing magnetic interference.
Implementation Method 1
at least one of the connecting joint and the probe joint has a magnet, and, if one of the connecting joint and the probe joint does not have a magnet, the one of the connecting joint and the probe join that does not have a magnet has an attraction member made of a paramagnetic material; and the probe joint and the connecting joint can be connected by force of attraction based on magnetic force between the magnets or between the magnet and the paramagnetic material
Data Source
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AI summary
Proposed is a thermal analyzer that can suppress breakage due to falling of a probe and facilitates attachment and detachment in a structure in which a probe and a load transmission shaft connected to a load generator are detachable. The thermal analyzer includes a probe extending in an axial direction, a first end of the probe coming into direct or indirect contact with a sample to apply a load to the sample; a probe joint provided at a second end of the probe; a load generator; a load transmission shaft extending in the axial direction, having a first end directly or indirectly connected to the load generator and a second end at which a connecting joint is provided, the load transmission shaft configured to transmit the load from the load generator to the probe by connecting the connecting joint to the probe joint; a displacement detection mechanism configured to detect mechanical properties of the sample by detecting displacement of the probe in the axial direction; and a heating furnace , characterized in that at least one of the connecting joint and the probe joint has a magnet and, if one of the connecting joint and the probe joint does not have a magnet, the one of the connecting joint and the probe joint that does not have a magnet has an attraction member made of a paramagnetic material; and the probe joint and the connecting joint can be connected by force of attraction based on magnetic force between the magnets or between the magnet and the paramagnetic material.