JPS6167557U

JPS6167557U -

Info

Publication number: JPS6167557U
Application number: JP15050484U
Authority: JP
Priority date: 1984-10-05
Filing date: 1984-10-05
Publication date: 1986-05-09

Description

[Brief explanation of the drawing]

第１図は本考案の第一の実施例になるワイパ駆
動装置の全体構成を示すブロツク図、第２図は小
雨状態の信号波形を示す波形図、第３図は雨量が
多い場合の波形図、第４図は具体構成を示す回路
図であり、第５図は第二の実施例を示す回路図で
ある。Ａ…センサ部、Ｂ…ＦＦ回路、Ｃ…積分回路、
Ｄ…カムスイツチ、Ｅ…モータ間欠駆動回路、Ｆ
…基準電圧、Ｇ…比較回路、Ｈ…速度比例電圧検
知回路、Ｉ…比較回路、Ｊ…モータ駆動回路、Ｋ
…可変速度ブラシ切替回路、Ｌ…間欠連続切替リ
レー、Ｍ…ワイパモータ、Ｎ…ワイパモード切替
スイツチ、Ｏ…ワイパ間欠駆動回路、Ｐ…ワイパ
手動自動切替回路、Ｑ…ワイパ手動自動切替リレ
ー、Ｔ…タイマ回路、Ｖ…電源、１０…オア回路
。 Fig. 1 is a block diagram showing the overall configuration of a wiper drive device according to the first embodiment of the present invention, Fig. 2 is a waveform diagram showing signal waveforms in light rain, and Fig. 3 is a waveform diagram in heavy rain. , FIG. 4 is a circuit diagram showing a specific configuration, and FIG. 5 is a circuit diagram showing a second embodiment. A...sensor section, B...FF circuit, C...integrator circuit,
D...Cam switch, E...Motor intermittent drive circuit, F
...Reference voltage, G...Comparison circuit, H...Speed proportional voltage detection circuit, I...Comparison circuit, J...Motor drive circuit, K
...variable speed brush switching circuit, L...intermittent continuous switching relay, M...wiper motor, N...wiper mode switching switch, O...wiper intermittent drive circuit, P...wiper manual automatic switching circuit, Q...wiper manual automatic switching relay, T... Timer circuit, V...power supply, 10...OR circuit.

Claims

[Claims for Utility Model Registration] (1) Sensor means for detecting falling rain and converting it into an electrical signal, a high-pass filter for eliminating the low frequency range of the electrical signal, an amplifier circuit for amplifying the output of the high-pass filter, a sensor unit including a first comparison circuit that compares the output of the amplifier circuit with a reference voltage; a flip-flop circuit that changes the intermittent pause time based on the output of the sensor unit and a signal from a cam switch linked to the wiper motor; wiper motor intermittent drive means comprising a first intermittent motor drive circuit operated by the output of the flip-flop circuit; an integrator circuit that integrates the output signal from the sensor unit; a variable speed continuous drive circuit comprising a second comparator circuit for comparing the voltage generated according to the voltage and a motor drive circuit controlled by the second comparator circuit; A fully automatic wiper drive circuit comprising a third comparison circuit for comparison, a variable speed brush switching circuit operated by the output of the third comparison circuit, and an intermittent continuous switching relay controlled by the variable speed brush switching circuit. and a manual wiper drive circuit including a wiper mode changeover switch and a second motor intermittent drive circuit that is switched and operated by the wiper mode changeover switch, and the fully automatic wiper drive circuit and the manual wiper drive circuit What is claimed is: 1. A wiper drive device comprising: a wiper manual/automatic switching relay that switches and connects a wiper motor to a wiper motor; and a wiper manual/automatic switching circuit that switches and controls the switching relay. (2) An OR circuit is provided between the flip-flop circuit and the first intermittent motor drive circuit, into which the output of a timer circuit connected to a watch switch and the output of the flip-flop circuit are input. A fully automatic wiper drive device featuring: