CN2136773Y - Automatic detecting alarm device for car lamplight stoppage - Google Patents

Abstract

The utility model discloses a monitoring prewarning device for lamp of motor-driven vehicle, which is a device of monitoring the failure of the lamp. The monitoring prewarning device for lamp of motor-driven vehicle is composed of an adjustable sampling circuit with high sensitivity and low power consumption, an amplifying circuit, an audible and visual alarm cue circuit, a proof-switch on interfered circuit and a power switching circuit. The utility model has the advantages of high sensitivity, high stability, small size and saved power consumption, and can be widely used in various cars with direct voltage below 35V. The utility model is characterized in not changing the original design circuit of the vehicle without professional vehicle repair persons, and can be arranged and adjusted.

Description

Automatic detecting alarm device for car lamplight stoppage

The utility model relates to the car bulb detecting device, the automatic detection alarm device of particularly a kind of car bulb fault.

As everyone knows, the automobile of the automobile of homemade various models and external import is not all also installed the automatic detection alarm device of lighting fault at present.But " car electrics " first phase 31-34 page or leaf in 1988 has published History of United States of America pula lattice＜SPRACUE〉automobile produced of company can finish fault alarm to vehicle light with the monolithic bipolar integrated circuit.In fact do not find also from the automobile of external import that this circuit is applied.The existing method of lighting fault of checking is: when automobile went back to field (storehouse), the maintainer checked one by one that to car light perhaps the driver respectively organizes the change-over swith of light at bridge operation.Maintainer busily direct viewing respectively organizes the service condition of lamp.And illuminating lamp, sign lamp often break down in the process of moving, and the driver is difficult to find in this case.

Along with developing rapidly of auto-industry, the becoming better and approaching perfection day by day of automotive performance, the safety of automobile seems more and more important.Illuminating lamp on the automobile, the sign lamp particularly outstanding, it is " eyes " of automobile, is again " language " in the running car.It has direct influence to the safety of oncoming and pursuit-type vehicle.In view of present domestic most of highways are mixed type traffic system, in order to improve traffic safety, reduce traffic accident, necessary reinforcement is to the cross-check sum detection means of car lighting lamp, sign lamp.

The purpose of this utility model: be at addressing the above problem, and provide a kind of effective automatic detection alarm device of various car bulb faults that is applicable to, it has utilized the filament resistance of automotive lamp to realize automatic detection to the filament deenergizing dexterously, and remind the driver to pay attention to the fault of car light with chimes of doom, help safety traffic.Have stable and reliable working performance, easy to use, characteristics such as circuit structure is succinct and easy to implement.

In order to realize this purpose, invention scheme of the present utility model is: in Figure of description, Fig. 1 provides the circuit working functional block diagram of this detection alarm device, and it partly is made up of optical indicator (1) and (9), phase inverter (2) and (10), adder (3), report to the police part (4), isolator (5) and (1) and bleeder (6) (filament of car light is a divider resistance) and (8).Though the filament resistance value of every group of lamp and not quite identical on the automobile, the changes in amplitude of the signal value of bleeder (6) and (8) output is little, so the filament resistance that focuses on utilizing automotive lamp of the present invention.What deserves to be explained is among Fig. 1 it is that only to show the schematic block circuit diagram that one group of signal lamp detects (two lamps wherein of illuminating lamp or sign lamp) be example, other all respectively organize lamp the circuit working principle all be roughly the same.In addition, the adder (3) and the part (4) of reporting to the police are the common grounds of this detection alarm device.Fig. 2 is each divider resistance, i.e. filament resistance of automotive lamp of bleeder (6) and (8).

Advantage of the present utility model:

Circuit structure is succinct: Fig. 1 provides the circuit working functional block diagram of this detection alarm device.There is a divider resistance (Fig. 2) to be the filament resistance of automotive lamp in bleeder (6) and (8), both utilized the automobile filament, again to the filament detection of opening circuit.The lighting fault that has solved present domestic automobile and external imported auto detects a difficult problem, on existing automobile this detection alarm device is installed, and need not do any change to the former instrument of automobile.Simple to operate, easy to use, the driver as long as pressing detects button once, can finish the detection to all illuminating lamps and sign lamp before driving.Have that circuit structure is succinct, stable and reliable working performance, characteristics such as safe, easy to use and easy to implement.

Below in conjunction with Figure of description the utility model is done further to implement to describe:

In Figure of description, Fig. 1 provides the circuit working functional block diagram of this detection alarm.It is made up of optical indicator (1) and (9), phase inverter (2) and (10), adder (3), annunciator (4), isolator (5) and (7) and bleeder (6) (filament of car light is a bleeder resistance) and (8) part.

When bleeder (6) and automobile power source E constitute electric loop, normal circumstances, there is very little voltage signal at the filament two ends, and the voltage signal that this is very little is delivered to reverser (2), and it be normally to indicate that phase inverter (2) output high level drives optical indicator (1).When light breaks down, being filament disconnection or circuit throws off, the signal voltage signal of the approximate power supply of bleeder (6) output at this moment, again this voltage signal is delivered to phase inverter (2), deliver to optical indicator (1) after once anti-phase, optical indicator (1) does not have indication, delivers to adder (3) through anti-phase output one high level of secondary again and drives the part (4) of the reporting to the police sound that gives a warning, and to show car light fault is arranged.This process has been finished the automatic detection alarm function of car bulb fault.

Isolator (7), bleeder (8), optical indicator (9), phase inverter (10) are same working processs with isolator (5), bleeder (6), optical indicator (1) and phase inverter (2), and circuit is also just the same, no longer sets forth at this.The radical function of adder (3) is to deliver to the part (4) of reporting to the police after the breakdown signal addition with each group lamp, and along with increasing of fault item, alarm sound is also more and more big, forces the driver to be obliged to go car light is repaired.K shown in Fig. 1 is the switch (pedal brake switch) of each group lamp on automobile instrument panel.Isolator (5) is when K is closed, and the lamp in the bleeder (6) is lighted.As after on the existing various automobiles this detection alarm device being installed, need not do any change to former automobile instrument panel.Even the part components and parts of this detection alarm device damage, also can not influence the normal operation of primary circuit.

Promptly constitute the utility model according to above-mentioned making--the automatic detection alarm device of car bulb fault.

Claims (2)

1. The automatic detection alarm device of a kind of car bulb fault, it is to utilize the filament resistance of automotive lamp to realize detection to the filament deenergizing, it by optical indicator (1) and (9), reverser (2) and (10), adder (3), the part (4) of reporting to the police, isolator (5) and (1) and bleeder (6) and (8) partly formed, it is characterized in that:

   (1), the filament of car light is bleeder (6) one divider resistances,
2. (2), the filament of car light is bleeder (8) one divider resistances.

Images