CN2214904Y

CN2214904Y - Vehicle light monitoring alarm

Info

Publication number: CN2214904Y
Application number: CN 95242939
Authority: CN
Inventors: 汪世贵; 李劲
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-22
Filing date: 1995-03-22
Publication date: 1995-12-13
Anticipated expiration: 2005-03-22

Abstract

The utility model provides a monitoring alarm of a vehicle light, comprising a voltage detecting comparator, an actuating mechanism and a sound and light alarm. The circuit of each vehicle light is provided with a detecting circuit which is arranged on the power supply circuit of the vehicle light. The utility model is characterized in that the voltage detecting comparator comprises a detecting head and a reference voltage circuit, wherein, one section of the high-resistance line L is connected between the switch of the vehicle light and the vehicle light in series; the reference voltage circuit is connected into the input circuit of the actuating mechanism; when one vehicle light has a failure, the device alarms drivers by sound and light. The utility model has the advantages of simple structure, low cost, convenient installation, reliable operation, high sensitivity and long service life.

Description

Vehicle light monitoring alarm

The utility model relates to a kind of car lighting or signalling apparatus, particularly a kind of automobile lamp monitoring alarmer.

The various car lights that are provided with on the existing automobile are night running and safety traffic setting.In travelling if car light takes place to be damaged or line fault, car light is not worked or brightness not enough, and chaufeur can not in time be found, then is easy to take place traffic accident.For this reason, some technology that the car light mode of operation is monitored and reports to the police have been produced.Problems such as but all there is complex structure in these technology, and cost is higher, and work is stable inadequately, thereby, be difficult to large scale application in practice.

The purpose of this utility model is a kind of simple in structure, stable performance of design, automobile lamp monitor and alarm unit easy to install and use, lower-cost.

The purpose of this utility model reaches by the design plan of following automobile lamp monitoring alarmer.It partly is made up of voltage detection comparator, actuating unit and combined aural and visual alarm three, and each car light circuit is provided with a testing circuit, and device is on the current supply circuit of car light.Be characterized in that voltage detection comparator constitutes with detection head P and reference voltage circuit, one resistive conductor L of detection head is serially connected between lighting switch K and the car light CD, its resistance and its place circuit car light power are complementary, be that the pressure drop UL that produces on it is about 1 volt, reference voltage circuit is connected in the input circuit of actuating unit; Actuating unit is made of electronic switch and power element, and electronic switch is integrated package or discrete electronic component circuit, and power element is serially connected in the electronic switch output circuit; Combined aural and visual alarm is made of light-emitting diode and sounder.When a certain car light circuit et out of order, after voltage detection comparator 1 compares detected abnormal signal voltage and reference voltage, export a signal voltage and give actuating unit 2, make executive mechanism element energising action, with combined aural and visual alarm 3 power connections, send failure alarm signal.The UL of voltage detection comparator ends the electronic switch of actuating unit greater than reference voltage during car light circuit trouble free, the power element outage, and combined aural and visual alarm is failure to actuate.

Fig. 1 is the utility model electricity functional-block diagram,

Fig. 2 is a kind of concrete enforcement circuit of the present utility model,

Fig. 3 is another concrete circuit of implementing of the utility model.

Below in conjunction with accompanying drawing the utility model principle of work is elaborated.Fig. 2 implements piezoelectric detector reference voltage circuit employing stabilivolt DW1 in the circuit, and the electronic switch of actuating unit adopts discrete component circuit, and power element is a relay.Electronic switch is by aerotron BG1, BG2, stabilivolt DW2, and resistance R 1, R2 form, and it imports the anodal a point of a termination power, and the other end is connected to the b point mutually with DW1; Mouth C and relay J coil one end join, other end g power connection negative pole.Stabilivolt DW2 1 termination BG1 collecting electrode d point in the electronic switching circuit, another termination BG2 base stage.Relay coil is serially connected on 2 of the electronic switch mouth Cg, its open contact, and the anodal f point of a termination power, the other end and rattler F join.Combined aural and visual alarm is buzzer phone F and light-emitting diode Df, and buzzer phone is serially connected between the open contact and power supply of J, Df be connected in parallel on the relay coil after resistance R 4 is connected in series.When source switch K is closed, car light CD lights, and the resistive conductor L of detection head P goes up and produces a pressure drop UL, and its value is compared with the reference voltage value on the DW1, be slightly larger than reference voltage value, so the DW1 conducting, BG1 is conducting thereupon, and the d point is a high potential, DW2, BG2, end, the C point is in active potential, so J is failure to actuate, does not report to the police.If a certain car light circuit et out of order, then UL reduces, and it is worth less than the DW1 reference voltage value, so DW1, BG1 end, the d point becomes active potential, DW2, BG2 conducting, and the C point is in high potential, the action of J coil electricity, its open contact adhesive, the buzzer phone sounding, Df is luminous.

Embodiment two, voltage detection comparator 1 is made of with the reference voltage circuit that adjustable resistance R3, diode D3 form detection head P and resistance R 1, R2, detection head P is made up of special wire L and diode D1, D2, L is serially connected between lighting switch K and the car light CD, D1, D2 are connected on the L two ends respectively, the contact T of the other end of D1 and D3 joins, the other end of D2 is connected to the S point mutually with R1, the R2 other end and power cathode join, it is dividing point that the serial connection of R1, R2 connects some H, D3 is connected in series with R3, and its negative pole connects the T point, the other end power connection negative pole of R3.The electronic switch of actuating unit is formed with switch ic chip and aerotron BG, a point and the H point of IC join, b point and R3 sliding end join, the voltage U 2 of R3 sliding end is reference voltage, the b point of input IC, a point of the U1 dividing potential drop input IC that is taken out by H point is owing to the input impedance of IC is very big, so reference voltage U2 is very stable not with mains fluctuations.After the K closure, if the car light trouble free, then resistive conductor L and car light point of connection M voltage U 3 are through the U1＜U2 of R1, the generation of R2 dividing potential drop, and then IC is output as high potential, thereby BG ends, and relay J is failure to actuate, and does not report to the police; When car light was out of order, U3 raise, U1〉U2, IC mouth d is in active potential, makes the BG conducting, and the J action of switching on the combined aural and visual alarm power connection, is sent chimes of doom, light.This example can not be shared except that detection head P, each car light circuit of remaining circuit all can be shared, TS two point of connection are the detection signal voltage input coupling end of detection head P in each car light circuit.

The utility model has the advantages that simple in structure, line layout is few, cost is lower, easy for installation, operation working stability, strong, the long service life of highly sensitive, interference resistance. As required, both can design the full car light monitoring alarmer of producing all size, also can produce the monitoring alarmer of single or several car lights.

Claims

1, a kind of automobile lamp monitoring alarmer, partly form by voltage detection comparator, actuating unit and combined aural and visual alarm three, it is characterized in that voltage detection comparator constitutes with detection head P and reference voltage circuit, one section resistive conductor L of detection head is serially connected between lighting switch K and the car light CD; Reference voltage circuit is connected in the input circuit of actuating unit, and actuating unit is made of electronic switch and power element, and power element is serially connected in the electronic switch output circuit.

2, automobile lamp monitoring alarmer according to claim 1, the detection head P that it is characterized in that described voltage detection comparator is one section resistive conductor L.

3, automobile lamp monitoring alarmer as claimed in claim 1 or 2 is characterized in that the detection head P of described voltage detection comparator is made up of resistive conductor L and isolation diode D1, D2.

4, automobile lamp monitoring alarmer according to claim 1 is characterized in that reference voltage circuit is stabilivolt DW1.

5, as automobile lamp monitoring alarmer as described in claim 1 or 4, it is characterized in that reference voltage circuit is composed in series by diode D3 and adjustable resistance R3.