Fan Frame Temperature Detection Wire Bending
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Solution Overview
Problem
Conventional fan temperature detecting elements mounted on circuit boards are influenced by the circuit board's temperature, leading to significant errors in detected temperature readings.
Innovation Solution
A fan frame design with a circuit board installed around the inlet, featuring a temperature detecting element and wires with bending sections that increase the wire length, reducing the circuit board's influence on temperature detection and minimizing errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature detecting element is mounted on the circuit board, then the detected temperature signal can be transmitted to the control system, but the temperature of the circuit board influences the detected temperature and results in big error
Solution Approach 1:
The patent introduces wires with bending sections as an intermediary between the temperature detecting element and the circuit board. These bending sections act as thermal isolation elements, allowing electrical signal transmission while blocking heat conduction from the circuit board to the temperature detecting element, thus eliminating the harmful thermal influence.
Solution Approach 2:
The patent segments the connection between the temperature detecting element and the circuit board by introducing separate wire connections with bending sections. This segmentation separates the electrical connection path from the thermal conduction path, allowing the temperature detecting element to be electrically connected while thermally isolated from the circuit board.
2Measurement precision
If the wire length is increased using bending sections, then the influence of the circuit board on the temperature detecting element is reduced, but the device complexity increases
Solution Approach 1:
The patent uses bending sections in the wires to increase wire length without adding complex structural components. The curvature of the bending sections provides thermal isolation while maintaining a relatively simple wire implementation, avoiding the need for complex thermal barrier structures.
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 design effectively decreases temperature detection errors by isolating the temperature detecting element from the circuit board's temperature, allowing for more accurate ambient temperature sensing.
Implementation Method 1
By utilizing the bending sections of the first wire or the second wire, the length of the first wire or the second wire can be increased. Therefore, the influence in the temperature detecting element caused by the circuit board can be lowered
Data Source
AI summary
A fan frame and a fan having temperature detecting element are provided. The fan frame includes a body and a circuit board. The body includes an inlet. The circuit board is installed around the inlet of the body. The temperature detecting element traverses the inlet. The first wire electrically connects the first contact end and the first external contact terminal. The second wire electrically connects the second contact end and the second external contact terminal. At least one of the first wire and the second wire includes a plurality of bending sections. By utilizing the bending sections of the first wire or the second wire, the length of the first wire or the second wire can be increased. Therefore, the influence in the temperature detecting element caused by the circuit board can be lowered and the error of the detecting temperature can be decreased.