Brake Pad Assembly With Sensor Plate Wear Warning
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Solution Overview
Problem
Users find it difficult to determine the wear level of bicycle brake pads, leading to potential continued use of worn-out pads and increased safety risks due to their concealed location within the caliper.
Innovation Solution
A brake pad assembly that includes a sensor plate and warning module, where the sensor plate surrounds the brake pad and forms a closed circuit with a warning module, generating a signal when worn to alert the user to replace the pad before it becomes excessively worn.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the brake pad is placed inside the caliper for braking function, then the braking performance is improved, but the user cannot easily observe the wear degree of the brake pad
Solution Approach 1:
The patent introduces a sensor plate as an intermediary element that is worn away together with the brake pad. The sensor plate serves as a mediator that translates the wear condition into a detectable signal through circuit interruption, allowing indirect observation of brake pad wear without direct visual access to the pad itself.
Solution Approach 2:
The patent replaces the mechanical/visual inspection method with an electrical sensing system. Instead of requiring the user to visually inspect the brake pad wear mechanically, the system uses electrical circuits and sensor plates to automatically detect and signal wear conditions, substituting mechanical observation with electrical detection.
2Device complexity
If no wear detection system is installed, then the device complexity is reduced, but the user cannot know when to replace the brake pad, increasing safety risks
Solution Approach 1:
The patent implements preliminary action by providing advance warning before the brake pad is completely worn out. The sensor plate is designed to be worn away at the same rate as the brake pad, creating a preliminary alert system that notifies the user before critical wear is reached, allowing proactive replacement before safety issues arise.
Solution Approach 2:
The patent establishes a feedback mechanism where the wear condition of the brake pad is continuously monitored through the sensor plate circuit. When the sensor plate wears away and interrupts the circuit, this feedback signal triggers a warning module to alert the user, creating a closed-loop monitoring system that enhances safety without requiring complex continuous monitoring.
3Difficulty of detecting and measuring
If a sensor plate surrounding the brake pad is added to detect wear, then the wear detection capability is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple functions into the sensor plate component. The sensor plate simultaneously serves as a wear indicator, a circuit element, and a mounting structure for the warning module. By combining these functions into a single integrated component, the overall device complexity is minimized while maintaining effective wear detection capability.
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 system effectively notifies users to replace the brake pad before it wears out, enhancing safety by preventing potential bicycle accidents caused by worn-out brake pads.
Implementation Method 1
a spring clip (36), wherein the brake pad (13) is surrounded by the ring-shaped arm (362), and the warning module (15) is electrically connected to the spring clip (36)
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A brake pad assembly is provided in the present disclosure. The brake pad assembly includes at least one back plate, at least one brake pad, at least one sensor plate and a warning module. The brake pad is on the surface of the board. The brake pad is surrounded by the sensor plate, and the sensor plate forms a closed circuit. The warning module is electrically connected to the sensor plate. A warning signal is generated by the warning module when the closed circuit of the sensor plate forms an open circuit or a short circuit.