CN2036510U

CN2036510U - Electric wiper capable of adjusting interval time for vehicle

Info

Publication number: CN2036510U
Application number: CN 88211817
Authority: CN
Inventors: 冯春伟
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-26
Filing date: 1988-05-26
Publication date: 1989-04-26

Abstract

The utility model discloses an electric wiper capable of adjusting interval time for vehicles. The electric wiper comprises a wiper blade (1), a motor (2) and a controller (3), wherein, the controller (3) provides control signals with fixed working period and adjustable interval time, and controls the switching on and the switching off of the power supply of the motor (2). Thus, drivers can adjust appropriate working interval time for the wiper according to the rain water situation of the windowpane of the steering room for achieving the purposes of full energy source utilization and comfort work.

Description

Electric wiper capable of adjusting interval time for vehicle

The utility model relates to a kind of improvement of vehicle electric Windshield Wiper.

Present for motor vehicle Windshield Wiper has the single water speed of scraping, and also has to scrape the control of water speed stepping, as long as one connect motor power, just continuously wind glass scraped water; In addition, intermitten screen wiper is arranged also, but it scrapes water speed and intermittent time is changeless.Existing Windshield Wiper is unfavorable for filling a part energy savings owing to can not implement to change its intermittent use beat within the specific limits, also influences driver's work to a certain extent.Though as rainwater on the wind glass what, as long as connect the Windshield Wiper power supply, just continuously scrape.Obviously, rainwater after a little while, it is very low scraping water efficient, and, constantly scrape water, the driver also can feel under the weather.

The purpose of this utility model provides the adjustable electric wiper of a kind of intermittent time, is used in particular for window glass for vehicle and scrapes water.

The technical solution of the utility model provides a fixed cycle and the multi-vibrator of EDM Generator of Adjustable Duty Ratio, goes the electrical motor work of the existing vehicle electric Windshield Wiper of master cock.Be that the utility model comprises swept area of wiper blade, electrical motor and the controller that is made of multi-vibrator, control output stage, power stabilizer.

The utility model has the advantages that: can be subjected to the rainwater situation to regulate the work beat at intermittence of Windshield Wiper according to glass for vehicle window, raising utilization rate of electrical and non-reason are constantly scraped water continuously feel well the driver.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the schematic circuit diagram of controller 3 of the present utility model.

Fig. 3 is the utility model control output stage 5 structural representations.

Provide embodiment of the utility model according to Fig. 1 and Fig. 2,, further provide ins and outs of the present utility model by elaboration to embodiment.From Fig. 1 as seen, the utility model comprises swept area of wiper blade 1, electrical motor 2, controller 3.Controller 3 is by multistage oscillator 4, and control output stage 5 and power stabilizer 6 constitute, and are contained in the box 7.Among Fig. 2, power stabilizer 6 is by IC ₂And capacitor C ₂Constitute.Multi-vibrator 4 comprises time-base integrated circuit IC ₁, resistance R ₁, R ₂, potential device W, capacitor C ₁With diode D ₁, D ₂Wherein, R ₁, D ₁, W ₁And C ₁Constitute IC ₁The charging path of work is corresponding to multi-vibrator 4 output high level; R ₂, D ₂, W ₂And C ₁Constitute IC ₁The discharge path of work is corresponding to multi-vibrator 4 output low levels.W ₁With W ₂Sum is W, and their resistance size changes with the position that is contained in the knob 8 on the box 7, and knob 8 becomes mechanical connection with the release handle of potential device W.Control output stage 5 comprises relay J and diode D ₃The coil crossover of relay J is between the output terminals A of the mouth of constant voltage power suspply 6 and multi-vibrator 4, be subjected to multi-vibrator 4 controls, during A point low level, relay J work, during high level, relay J disconnects, and the power input of electrical motor 2 connects mutually with the mouth 9 and the public ground of controller 3, like this, electrical motor 2 constitutes the loop with source switch K, relay J, directly be subjected to the control of multi-vibrator 4, turn knob 8 promptly changes W simultaneously ₁With W ₂Resistance, changed the dutycycle of multi-vibrator 4 output square waves, thereby, regulated intermittent use time of Windshield Wiper.In the present embodiment, IC takes integrated circuit NE555, IC ₂Take integrated regulator 7812, R ₁=R ₂=20K Ω, C ₁=47 μ F, C ₂=100 μ F, diode D ₁, D ₂And D ₃All take the push-pull type potential device that 1N4148, potential device W are belt switch K, resistance is that 220K Ω and relay J adopt JZC-21F.

As the replacement of present embodiment, constitute the diode D of control output stage 5 ₃With relay J by resistance R ₃And IC ₃Replace.IC ₃It is a power drive gate circuit.

Another kind as present embodiment is replaced, and control output stage 5 is by resistance R ₃Constitute with power triode BG.

As another replacement of present embodiment, control output stage 5 is by resistance R ₃Constitute with controllable silicon SCR.

Claims

1, the adjustable Vehicular electric Windshield Wiper of intermittent time comprises swept area of wiper blade 1 and electrical motor 2, it is characterized in that the controller 3 that also has to be made of multi-vibrator 4, control output stage 5 and power stabilizer 6;

Multi-vibrator 4 comprises time-base integrated circuit IC ₁, resistance R ₁, R ₂, potential device W, capacitor C ₁With diode D ₁, D ₂

Power stabilizer 6 is by IC ₂And capacitor C ₂Constitute.

2,, it is characterized in that controlling output stage 5 by protection diode D according to the described Windshield Wiper of claim 1 ₃Constitute with relay J; Or by resistance R ₃With integrated driving gate IC circuit ₃Constitute; Or by resistance R ₃Constitute with power tube BG; Or by resistance R ₃With silicon control S _CRForm.