Automobile brake pad wear detection device

Abstract

The invention provides an automobile brake pad abrasion detection device. The device comprises a hydraulic module and a detection module; the hydraulic module comprises a hydraulic pipe, and a pistonis arranged in the hydraulic pipe; the detection module comprises a power generation piece; the power generation piece comprises an output wire, and the other end of the output wire is connected witha battery box; an output end of the battery box is connected with an alarm lamp through a wire; a rotating wheel is mounted at a power input end of the power generating piece; and an annular groove isformed in the outer ring of the rotating wheel, and a rubber ring made of elastic rubber materials is arranged in the annular groove. The automobile brake pad abrasion detection device is used for detecting whether a brake pad needs to be replaced by monitoring the abrasion thickness of the brake pad; and the device can give an alarm in an electric signal mode under the condition that the brake pad needs to be replaced, and can also give an alarm prompt under the condition that a vehicle is not started.

Description

technical field [0001] The invention relates to the field of auto parts, in particular to a brake pad wear detection device. Background technique [0002] Brake pads are also called brake pads. In the braking system of a car, the brake pads are the most critical safety parts; the braking principle of the car is to generate resistance through the friction between the brake pads and the brake disc, so that the vehicle can achieve the effect of deceleration and braking; Brake pads will wear out after long-term use, so it is necessary to regularly check and replace the brake pads to avoid the situation that the brake pads are too worn and affect the braking of the car; usually there are alarm pads on the brake pads, when it is necessary to brake When the disc wears seriously, the sound will be generated by the friction between the alarm disc and the brake disc, so as to achieve the alarm function; this method has the following disadvantages. First, when the alarm disc rubs again...

AI Technical Summary

Problems solved by technology

[0002] Brake pads are also called brake pads. In the braking system of a car, the brake pads are the most critical safety parts; the braking principle of the car is to generate resistance through the friction between the brake pads and the brake disc, so that the vehicle can achieve the effect of deceleration and braking; Brake pads will wear out after long-term use, so it is necessary to regularly check and replace the brake pads to avoid the situation that the brake pads are too worn and affect the braking of the car; usually there are alarm pads on the brake pads, when it is necessary to brake When the disc wears seriously, the sound will be generated by the friction between the alarm disc and the brake disc, so as to achieve the alarm function; this method has the following disadvantages. First, when the alarm disc rubs against the brake disc, it will also wear the brake disc, which will reduce the braking force. The service life of the disc; this kind of alarm method can only be alarmed when the vehicle is running, so the alarm method is limited; in addition, the sound generated by the friction between the alarm pad and the brake disc is easily disturbed by external noise, so that it cannot be noticed by the driver; In addition, the method of using the alarm sheet for detection cannot be reused, so it is not conducive to the recycling of resources; in summary, there are defects

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