Vertical Thermal Cutoff for Compact Liquid Cooling
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Solution Overview
Problem
High-voltage thermal cutoffs with a parallel configuration are not suitable for applications requiring compactness due to their large block or flat sheet shape, limiting their use in spaces with higher space requirements, such as in liquid cooling systems where circuit board and control part arrangements leave limited space.
Innovation Solution
A thermal cutoff with a vertical configuration, featuring a closed cavity bounded by a housing and a cover plate, where a current-carrying fusible element and a high-voltage fusible element are arranged vertically, with the cover plate dividing the cavity into two sections, allowing for an elongated shape that meets specific application needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If two fuse links are arranged side by side horizontally, then the manufacturing is simplified, but the overall shape becomes a large block or flat sheet which is not suitable for compact spaces
Solution Approach 1:
The patent transitions from a horizontal parallel arrangement to a vertical arrangement where fuse links are stacked above each other. This dimensional change transforms the overall shape from a large block or flat sheet to an elongated compact form, significantly reducing the horizontal footprint while maintaining manufacturing feasibility through vertical assembly processes
2Device complexity
If two fuse links are arranged side by side horizontally, then the structure is simple, but the thermal cutoff cannot be effectively used in applications with limited space such as liquid cooling systems
Solution Approach 1:
By arranging fuse links vertically in stacked layers rather than horizontally side by side, the patent creates an elongated compact shape that adapts to limited spaces in liquid cooling systems and other applications, while maintaining structural simplicity through the use of identical vertical modules
Solution Approach 2:
The thermal cutoff is divided into multiple vertical sections or layers, each containing fuse links arranged vertically. This segmentation allows the device to fit into compact spaces while maintaining the functional simplicity of each individual section
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 vertical configuration enables the thermal cutoff to be longer and slimmer, making it applicable in compact spaces while maintaining high-voltage capabilities and achieving excellent sealing protection, suitable for applications with higher space requirements and lower operating voltages.
Implementation Method 1
The first fusible element and the second fusible element are both fusible alloys... A melting point of the current carrier is lower than a melting point of the fuse link
Implementation Method 2
an internal resistance value of the current carrier is lower than an internal resistance value of the fuse link
Data Source
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AI summary
A thermal cutoff includes a first fusible element, a second fusible element, and a closed cavity bounded by a housing (101) having an open end, a cover plate (102), and a sealant (103). The two ends of the first fusible element and the two ends of the second fusible element are connected in parallel to a first electrode and a second electrode, respectively. The first fusible element and the second fusible element are provided in the closed cavity. A direction extending from a closed end to the open end of the housing (101) is defined as a vertical direction. The first fusible element and the second fusible element are vertically arranged. By means of the foregoing technical solutions, the thermal cutoff has a vertical configuration and thus in its entirety has an elongated shape to meet corresponding application requirements.