Anti-loosening socket of electrical plug connector of wheel speed sensor

Abstract

The invention discloses an anti-loosening socket of an electrical plug connector of a wheel speed sensor. The anti-loosening socket comprises an electrode plug push seat and a cylinder-shaped electrical insertion core; and the electrode plug push seat includes a wiring handle and an electrical insertion core sleeve. Besides, the wiring handle and the electrical insertion core sleeve are connected into one; and inner concave elastic clamping pieces are uniformly arranged on circumferential sidewalls of the electrical insertion core sleeve. Because the inner concave elastic clamping pieces are additionally arranged on the sidewalls of the electrical insertion core sleeve of the electrode plug push seat, after the cylinder-shaped electrical insertion core is inserted into the central hole of the electrical insertion core sleeve, the inner concave elastic clamping pieces can be tightly compressed on the cylinder-shaped electrical insertion core, so that it can be ensured that the cylinder-shaped electrical insertion core and the electrical insertion core sleeve are contacted to each other all the time; therefore, a defect that the electrical insertion core sleeve and the cylinder-shaped electrical insertion core can not be contacted stably can be overcome, wherein the defect is caused by vibration increase of a bore of the electrical insertion core sleeve; and a defect of ineffectiveness of a vehicle wheel speed sensor can be substantially eliminated.

Description

Technical field: [0001] The invention relates to an automobile wheel speed sensor, in particular to an electrical socket in a connector of the automobile wheel speed sensor. Background technique: [0002] The automobile anti-lock braking system, commonly known as ABS, is an important guarantee system for the safe operation of the automobile. Its main function is to prevent the wheels from locking when the automobile is braking in an emergency. Automobile wheel speed sensor is a key sensitive component in automobile ABS. Its reliability directly affects the working state of ABS. The structure of the existing wheel speed sensor is as attached figure 1 As shown, it is composed of a sensor probe A, a transmission wire B and an electrical plug connector C. Two electrode sockets 1 are provided inside the electrical plug connector C. The electrode sockets 1 and the corresponding cylindrical The electric ferrule 2 is connected by interference fit. In actual use, the automobile anti-lock...

AI Technical Summary

Problems solved by technology

In the actual use process, the anti-lock braking system of automobiles, commonly known as ABS, often fails. Users think that the sensor probe is broken and must be replaced. The applicant has tested all the removed and replaced wheel speed sensors one by one. It is found that more than 98% of the sensor probes are not broken. After careful analysis and investigation, the main reason for the failure of the vehicle wheel speed sensor is the unreasonable structural design of the electrical plug connector.

[0003] Because the existing electric plug connector C is connected by the interference fit of the light-hole type electrode socket 1 and the cylindrical electric ferrule 2, and the wheel speed sensors of the automobile are installed on the automobile body, the automobile is in the process of driving. There are bound to be irregular vibrations and bumps. In the state of irregular vibrations and bumps, the interference fit between the electrode socket seat 1 and the cylindrical electric ferrule 2 will be destroyed, and the original interference fit will become a clearance fit. The larger the long gap, it will inevitably lead to unstable connection between the cylindrical electric ferrule 2 and the electrode socket seat 1, and the signal detected by the sensor probe A is transmitted to the electric plug connector C through the transmission wire B, and the electric plug is connected The connection between the electrode socket 1 in the device C and the cylindrical electric socket 2 is unstable, which will inevitably lead to the failure of the vehicle wheel speed sensor

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