CN2040050U

CN2040050U - Automatic front blinker

Info

Publication number: CN2040050U
Application number: CN 88205503
Authority: CN
Inventors: 王福祥
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-04-27
Filing date: 1988-04-27
Publication date: 1989-06-28

Abstract

The utility model discloses an automobile automatic turning head lamp, belonging to an attachment of motor vehicle. The head lamp at present is fixedly installed in the front part of the head of an automobile, which is converted to that a head lamp which can synchronously rotate along with the head of the automobile is arranged in the utility model. The utility model is composed of a head lamp, an automatic control system and a set of mechanical drive mechanism which is corresponding to the automobile automatic turning head lamp. The utility model has can automatically turn and reset itself along with the left and right turnings of an automobile steering wheel, and accordingly, light can be kept to drop on the right front part of the running automobile all the time, with reliable performance, and being good for driving safety.

Description

Automatic front blinker

The utility model is a kind of automobile automatic steering head lamp, belongs to the improvement of car headlamp, is suitable for various power actuated vehicles and uses.

At present, the head lamp of automobile all is installed on the place ahead, the left and right sides of headstock.When the automobile straight-line travelling, can just impinge upon 20～30 meters, dead ahead of car, can guarantee that the driver has good sight line, but when automobile turning, because head lamp is installed on the car, can not turn to synchronously with automobile, therefore, light or direct projection, amesiality, cause the driver to see road surface situation when not asking automobile turning, bring very big difficulty for driver's safety traffic, often therefore cause car accident and personal casualty.Not only influence normal driving and operation, and cause very big loss for national wealth and personal safety, especially in the hill path or the highway section of geographical conditions complexity more outstanding.

The purpose of this utility model provides a kind of head lamp that can turn to the automobile syn.

The utility model is realized with following technical scheme: it is by head lamp, and the mechanical transmission mechanism that an autonomous cruise speed system and a cover adapt is with it formed.Its autonomous cruise speed system is that the head lamp with automobile turns to input pickup to be contained in the left and right sides of bearing circle transmission shell.Lamp turns to the output termination FOO7 comparator input terminal of input pickup, the preamplifier of the output termination signal of F007 comparator and the input end of correction link.The input end of the output termination power amplifier of preamplifier and correction link, the mouth control DC machine of power amplifier.The feedback transducer that car headlamp turns to is contained in feedback projection place, pull bar both sides.Feedback transducer output termination F007 comparator input terminal.Mechanical transmission mechanism is by DC machine driven wheel speed reduction gearing, gear reduction is made up of a pair of gear, output gear is connected with worm screw, worm and wheel is formed transmission device, worm and gear, gear reduction are contained in the deceleration box, adorn a dead man on the worm gear, and dead man and pull bar connect, pull bar is connected with the lamp body rear end by bearing pin, and lamp body is contained in the automobile head by axis of revolution.Feedback transducer is installed in the feedback projection place on the pull bar.

The utlity model has and to turn to and can automatic steering and reset with vehicle steering is left and right, thereby traffic safety is guaranteed in the dead ahead that keeps light to impinge upon automotive operation all the time that signal is accurate, dependable performance, characteristic of simple structure.

Now in conjunction with the accompanying drawings the utility model is described in further detail.

Fig. 1 is the utility model automatically controlled block scheme

Fig. 2 is the structure of the utility model mechanical driving part and the installation site scheme drawing of feedback transducer.

Fig. 3 is the utility model deflector scheme of installation

Fig. 4 is the circuit diagram of the utility model preamplifier

Fig. 5 is the circuit diagram of the utility model follow-up system power amplifier

Fig. 1～5th, specific embodiment of the utility model.Form by mechanical drive and automatic guidance two parts.Mechanical driving part is that the motor shaft with DC micromotor 6 is connected with the gear wheel shaft of the gear 7 of deceleration box.Gear 7 is formed speed reduction gearing with gear 8 engagements, and the end of worm screw 9 penetrates gear 8 mesopores, and gear 8 can drive worm screw 9 and rotate, worm screw 9 and worm gear 10 engagements, worm gear 10 is installed in the deceleration box 11 by worm-wheel shaft 16, and a dead man 13 is installed on the worm gear 10, and dead man 13 is connected with pull bar 3.Left side feedback transducer 4 feeds back the projection places with the pull bar about 3 that right feedback transducer 5 is installed in automotive front.Two ends, pull bar 3 left and right sides are connect by bearing

14,15 and lamp body 1 rear end lamp socket.The upper end of lamp body turning cylinder 2 is connected with head lamp 1 with ball pivot.The lower end is fixedly mounted on the position that automobile adapts, its automatic guidance partly is to turn to input pickup 19 and 21 to be installed in the left and right sides of bearing circle rotation case 20 on lamp, lamp turns to the input end of the output termination F007 comparator of input pickup 19 and 21, the output termination preamplifier of F007 comparator and the input end of correction link, the input end of preamplifier and correction link output termination follow-up system power amplifier, follow-up system power amplifier control DC machine 6, DC machine driving device running part.Be installed in the left and right sides feedback transducer 4 at automotive front pull bar about 3 feedback projection places and the input end of 5 output termination F007 comparator.The concrete annexation of the preamplifier of its automatic guidance part and correction link and the moving rate amplifier of follow-up system is detailed presentations in attached Figure 4 and 5; And in 88210066.1 patent application documents, illustrated.

Working condition of the present utility model is carried out as follows.When the automobile straight-line travelling, being contained in lamp on the vehicle steering deflector shell 20 turns to input pickup 19 and 21 because when not being under pressure, its output is small signal just, though through amplifying, but can not rotate by drive motor, its signal is approximately zero and the left and right

sides feedback transducer

4 and 5 that is contained in pull bar 3 feedback projection places this moment does not also rotate because of pull bar 3, be not under pressure yet, its feedback signal is also faint to be approximately zero, through the F007 comparator relatively after, clean difference signal levels off to and zero DC machine 6 is not rotated, and head lamp 1 yet original position does not rotate.

But when motor turning, suppose its left steering, because the vapour bearing circle turns left, spindle arm 18, turn to input pickup 21 to touch first pressure for the lamp left side, produce a signal, incoming signal surpasses feedback signal, through the clean difference signal of F007 comparator through having hysteresis～leading preamplifier and correction link.Signal amplifies 20～30 times, sends into the follow-up system power amplifier through the preamplifier amplifying signal, and the follow-up system power amplifier is the single-ended input of constant-current source type, and both-end output is controlled two pairs of two-way power amplifier switch (being made up of multiple unit tube) and made power tube BG ₄, BG ₇Conducting, motor are rotated through mechanical drive, pull bar 3 drive head lamps 1 left-handed turning to, the bearing circle rotational angle is big more.It is just big more that lamp changes the signal source that produces behind the sensor pressurized over to, and the angle that head lamp rotates is also just big more.This just makes wheel steering angle identical with the steering angle of head lamp, and synchronously.Meanwhile, send feedback signal with the effect of being stressed of head lamp pull bar 3 contacted feedback transducers 4, after forwarding the angle that rotate to when head lamp, the signal that the lamp of wheel steering device shell 20 turns to input pickup 21 to produce is almost equal with the signal of feedback transducer 4 generations, clean difference signal is very little, also being not enough to drive motor after amplifying rotates, so head lamp is parked on the position of left-hand rotation, thereby reach the just illumination purpose of energy automatic tracking left-hand rotation of bearing circle left-hand rotation car light.When automobile when turnon left recover to be kept straight on, at this moment, the left side lamp of wheel steering device shell 20 turns to input pickup 21 pressure to reduce, output signal also reduces, meanwhile, the feedback transducer 4 in pull bar 3 left sides that are connected with head lamp is because of continuing to be subjected to its pressure, so, feedback signal surpasses the signal that vehicle steering deflector shell 20 left side lamps turn to input pickup 21 to send, and is clean poor just anti-phase behind the F007 comparator.Amplify through preamplifier again, make a pair of BG of power amplifier level ₅, BG ₆The power tube conducting, driving DC machine just changes, the head lamp rotation that resets from left to right, along with the head lamp rotation that resets, feedback transducer 4 is stressed and reduces gradually, and feedback signal also reduces gradually, stops at reset mode at last.

When automobile bent to right, the contact that spindle arm 18 turns to input pickup 19 to starboard light was with pressure, and incoming signal is behind the F007 comparator, and clean difference signal amplifies 20～30 times through behind the preamplifier, and amplifying signal is sent into system power amplifier.Two pairs of two-way power amplifier switch of follow-up system power amplifier output control make BG ₅, BG ₆Conducting, driving DC machine just changes, and by gearing, makes head lamp 1 with the automobile turning clockwise.Meanwhile, the feedback transducer 5 that contacts with head lamp pull bar 3 sends feedback signal, after head lamp forwards it to and needs rotational angle, signal that lamp rotation input pickup 19 sends and feedback transducer 5 send signal and equate, clean difference signal through the F007 comparator is very little, level off to zero, though can not the drive motor running after amplifying.So illumination purpose that automobile right-hand corner car light is also turned right thereupon.When entering craspedodrome, set back automatically along with automobile.

Claims

1, a kind of automobile automatic steering head lamp, the gear wheel shaft of the gear 7 in the motor shaft that it is characterized in that DC machine 6 and the deceleration box is connected, gear 7 is formed speed reduction gearing with gear 8 engagements, the end of worm screw 9 penetrates gear 8 mesopores, gear 8 drives worm screw 9 and rotates, worm screw 9 and worm gear 10 engagements, worm gear 10 is installed in by worm-wheel shaft 16 dead man 13 is installed on the worm gear 10 in the deceleration box 11, dead man 13 is connected with pull bar 3, left and right sides feedback transducer 4,5 are installed in the left side on the pull bar 13, right feedback projection place, two ends, pull bar 3 left and right sides are by bearing pin 14,15 connect with lamp body 1 rear end lamp socket, and the upper end of lamp body 1 turning cylinder 2 is connected with head lamp 1 with ball pivot.