Angled Temperature Sensor Contact for EV Charging Terminals
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Solution Overview
Problem
Existing temperature measurement devices for charging terminals in new energy vehicles suffer from inaccurate temperature readings due to gaps between the charging terminal and the temperature measurement device, leading to excessive temperature rises and charging failures.
Innovation Solution
A temperature measuring structure with a support and temperature measurement element, where the temperature measurement face protrudes at a variable angle from the support, applying pressure to ensure close contact with the measured object, thereby enhancing measurement accuracy and preventing detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the temperature measurement device is installed without additional pressure applying devices, then the device complexity is reduced, but the contact area has gaps and measurement precision deteriorates
Solution Approach 1:
The temperature measurement device itself generates the necessary pressure through its weight and the elastic deformation of its support structure, eliminating the need for separate pressure applying mechanisms. The device serves both measurement and pressure application functions through its own structural characteristics.
Solution Approach 2:
The support structure is designed with specific elastic properties that allow it to deform under the weight of the temperature measurement device, creating optimal contact pressure. By controlling the stiffness and geometry parameters of the support, the system achieves both good contact and simple structure.
2Manufacturing precision
If the temperature measurement face is parallel to the support surface, then the manufacturing precision is improved, but the contact pressure is insufficient and measurement precision deteriorates
Solution Approach 1:
The temperature measurement face is deliberately positioned at an angle relative to the support surface, breaking the symmetric parallel arrangement. This asymmetric positioning allows the measurement face to protrude and apply pressure to the charging terminal while maintaining manufacturability through standard angular positioning.
Solution Approach 2:
The solution moves from a two-dimensional parallel arrangement to a three-dimensional angled configuration. By introducing a vertical component through the angled positioning, the system achieves both pressure application and accurate measurement without compromising manufacturing precision.
3Measurement precision
If the charging terminal needs to maintain pressure with the temperature measurement device, then the measurement precision is improved, but the device complexity increases due to additional pressure applying devices
Solution Approach 1:
The temperature measurement device uses its own weight and the elastic properties of its support structure to generate the necessary contact pressure, eliminating the need for separate actuators or pressure applying mechanisms. The device is self-sufficient in generating both measurement capability and required pressure.
Solution Approach 2:
The complex mechanical pressure applying system is replaced by a simple elastic support structure that naturally deforms to provide contact pressure. This substitution reduces mechanical complexity while maintaining the necessary pressure for accurate measurement.
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 solution allows for timely and accurate temperature measurement, reducing temperature drift values and preventing charging system failures by ensuring continuous contact and applying appropriate pressure without additional devices.
Implementation Method 1
The contact-type temperature measurement device... The temperature measurement device must be in contact with the measured medium before the temperature can be measured
Data Source
AI summary
A temperature measuring structure, a charging device, and a motor vehicle. The temperature measuring structure including: a support and a temperature measurement element. The support has a first surface. The first surface is provided with an area accommodating the temperature measurement element. The temperature measurement element has a temperature measurement face. The temperature measurement face at least partially protrudes from the first surface, and the temperature measurement face is at a variable angle to the first surface. The temperature measuring structure measures temperature data closest to an actual temperature for the measured object, thus the staff or the corresponding processor can be aware of the temperature of the measured object more timely and accurately, thereby preventing the condition in which the temperature measurement face is separated from the measured object in subsequent use of the temperature measurement element.