Tire Mount Sensor Orientation Indicator Design
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Solution Overview
Problem
Existing tire mount sensors with G sensors face challenges in recognizing and adjusting the acceleration detection direction, especially due to the presence of a circuit board, power supply, and antenna being resin-molded together, making it difficult for operators to correctly align the sensor with the tire's surface.
Innovation Solution
A tire mount sensor design featuring a G sensor, circuit board, antenna, and molded resin portion with a protruding rod-shaped portion that indicates the acceleration detection direction, allowing easy recognition and adjustment of the sensor's orientation relative to the tire's mounting surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the G sensor, circuit board, power supply, and antenna are resin-molded together to form an integrated tire mount sensor, then the sensor structure becomes compact and sealed, but it becomes difficult to recognize the acceleration detection direction of the G sensor
Solution Approach 1:
The patent applies visual marking (analogous to color changes principle) by forming a protruding portion on the molded resin that indicates the acceleration detection direction. This visual indicator allows operators to easily identify the correct orientation of the G sensor within the resin-molded assembly, resolving the contradiction between integrated structure and ease of orientation recognition.
Solution Approach 2:
The protruding portion acts as an intermediary element between the internal G sensor orientation and the external operator. It provides a visible reference that mediates the relationship between the hidden acceleration detection direction and the mounting operator's understanding, enabling correct installation without disassembling the resin-molded structure.
2Reliability
If the tire mount sensor is attached to the tire in a resin-molded state with integrated components, then the sensor is sealed and protected, but it becomes further not easy to recognize the acceleration detection direction with respect to the resin-molded sensor
Solution Approach 1:
The protruding portion provides a visual indicator on the external surface of the resin-molded sensor, allowing operators to recognize the acceleration detection direction without compromising the sealed structure. This resolves the contradiction by maintaining reliability through complete sealing while enabling ease of operation through external visual cues.
3Device complexity
If no orientation indicator is provided on the tire mount sensor, then the sensor structure remains simple, but the mounting operator cannot easily recognize or adjust the acceleration detection direction
Solution Approach 1:
The patent introduces a protruding portion as a minimal visual indicator on the molded resin surface. This simple structural addition provides orientation information without significantly increasing device complexity, resolving the contradiction between simplicity and ease of operation by using the existing molding process to create the indicator.
Solution Approach 2:
The protruding portion segments the otherwise uniform resin surface by creating a distinct directional feature. This segmentation provides visual guidance for orientation while maintaining the overall simplicity of the sensor structure, as the indicator is formed as part of the molding process rather than as a separate complex component.
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
Enables straightforward recognition and adjustment of the acceleration detection direction, facilitating proper mounting and enhancing the accuracy of road surface condition detection by aligning the sensor with the tire's circumferential or width direction.
Implementation Method 1
a G sensor that detects acceleration acting on the tire
Data Source
AI summary
A protruding portion is provided on a molded resin portion of a tire mount sensor, and the longitudinal direction of the protruding portion is aligned with the longitudinal direction of an antenna. Further, the longitudinal direction of the antenna is set at a predetermined angle with respect to the acceleration detection direction of the G sensor. For example, with a predetermined angle of 0°, the longitudinal direction of the antenna may be matched with the acceleration detection direction of the G sensor.