Automobile rainfall sensor

Abstract

The invention relates to an automobile rainfall sensor. The automobile rainfall sensor comprises a sensor body, a windshield wiper controller, a shell, a mounting plate, a threaded rod, a connecting rod, a limiting circle, a first limiting rod, a sliding groove and a suction cup. A hook-and-loop fastener is arranged on the side, provided with the suction cup, of the mounting plate. Two positioningplates are integrally connected to the two ends of one side of the mounting plate; the two positioning plates are rotationally connected with the same rotating plate; the rotating plate is connectedwith the shell; the two ends of the rotating plate are sleeved with torsional springs respectively, one end of each torsional spring is fixedly connected with the positioning plate, the other end of each torsional spring is fixedly connected with the rotating plate, an infrared transmitting tube and a photosensitive receiving tube used for receiving infrared rays are arranged at the two ends of the shell respectively, and a microcomputer is further arranged in the middle of the shell. The automobile rainfall sensor has the advantages that the linkage performance of the windshield wiper sensorand the windshield wiper controller is high, the windshield wiper body can return automatically, and mounting and dismounting are convenient.

Description

technical field [0001] The invention relates to the technical field of vehicle sensors, in particular to a vehicle rain sensor. Background technique [0002] The current automotive rain sensor is hidden behind the front windshield, and it can adjust the action of the wiper according to the amount of rain falling on the glass, thereby greatly reducing the troubles of the driver. The rain sensor does not change the action speed of the wiper with a few limited gears, but adjusts the action speed of the wiper steplessly. It has a light-emitting diode called an LED that is responsible for sending far infrared light, and when the glass surface is dry, the light is almost 100% reflected back, so that the photodiode receives a lot of reflected light. The more rain on the glass, the less light is reflected back, which results in faster wiper action. [0003] At present, the wiper sensor and the wiper controller are produced separately and the linkage between them is poor. In additi...

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Problems solved by technology

[0003] At present, the wiper sensor and the wiper controller are produced separately and the linkage between them is poor. In addition, when the wiper body is in use, if the rain suddenly disappears on the front window due to clearing, the wiper body will stop on the front window, which will not only interfere with driving. It is easy to be corroded, and the installation and disassembly of the wiper sensor is also a relatively complicated process, which needs to be simplified, so it needs to be improved

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