CN2635453Y - Vehicle signal lamp failure detecting instrument - Google Patents
Vehicle signal lamp failure detecting instrument Download PDFInfo
- Publication number
- CN2635453Y CN2635453Y CN 03255552 CN03255552U CN2635453Y CN 2635453 Y CN2635453 Y CN 2635453Y CN 03255552 CN03255552 CN 03255552 CN 03255552 U CN03255552 U CN 03255552U CN 2635453 Y CN2635453 Y CN 2635453Y
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- signal lamp
- automobile
- diode
- resistance
- circuit
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A vehicle signal lamp fault detector is composed of a vehicle signal lamp resistance value detection circuit, a signal trigger circuit, an oscillating circuit and an acoustic-optic alarm display circuit. The vehicle signal lamp resistance value detection circuit includes two series-connected diodes and two voltage comparators. One voltage comparator is used for state display and the other is used for vehicle signal fault detection. The signal trigger circuit includes a phase inverter and a nand gate. The oscillating circuit consists of a 555 time base circuit and a resistance capacitance. The alarm display circuit consists of an electromagnetic buzzer, a light-emitting diode and two switching triodes. When the vehicle signal lamp goes wrong due to filament breakage or turnoff, the vehicle signal lamp fault detector of the utility model will give an acoustic-optic alarm; when the vehicle signal lamp is in normal state, the light-emitting diode is lighted to display a normal state while the power is applied to light the vehicle signal lamp.
Description
Technical field
The utility model relates to a kind of automobile-used signal lamp failure detector, specifically relates to a kind of fault locator that the various external application signal lamps of machines motor-car comprise fog lamp, stoplight stop lamp, backing-up lamp and side-marker lamp that is used for.
Background technology
For a long time, the external application signal lamp of various power actuated vehicles comprises fog lamp, stoplight stop lamp, and backing-up lamp and side-marker lamp are in no monitor state, and bulb hinders for some reason and extinguishes in the time of maybe can not lighting chaufeur and can't know immediately.This is great potential safety hazard, especially greasy weather or evening when driving and travels at express highway, in case et out of order such as fog lamp, stoplight stop lamp and side-marker lamp and fail in time to discover might cause a serious accident.
Summary of the invention
The purpose of this utility model is that a kind of instant detector of understanding various external application signal lamp failures of navigating mate that allows will be provided.
The purpose of this utility model realizes like this: form an automobile-used signal lamp failure detector with automobile-used signal lamp resistance value testing circuit, signal triggering circuit, oscillating circuit and alarm display circuit.Contain two diodes of serial connection mutually in the automobile-used signal lamp resistance value testing circuit, the negative pole of one of them diode is connected with automobile-used signal lamp, the positive pole of another diode is connected with switch: the other end ground connection of automobile-used signal lamp, and the other end of switch is connected with power supply; Containing two voltage comparators in the automobile-used signal lamp resistance value testing circuit is display voltage comparator and fault detection voltage comparator, and the positive input of display voltage comparator is connected with a resistance with switch, this resistance other end ground connection; The reverse input end of display voltage comparator is connected with the positive pole of a diode: the negative pole of a diode in the diode of the negative pole of this diode and automobile-used signal lamp and two mutual serial connections is connected; The mouth of display voltage comparator is connected with the base stage of a switch triode through a resistance; The positive input of fault detection voltage comparator is connected with power supply through a resistance, the negative pole of a diode in its reverse input end and two diodes and the negative pole of another diode are connected with automobile-used signal lamp, be connected with power supply through a resistance simultaneously, the input end of the phase inverter in the mouth of fault detection voltage comparator and the signal triggering circuit is connected.The sound and light alarm display circuit can adopt light-emitting diode and electric magnetic buzzer, and electric magnetic buzzer is pressed per second and intermittently reported to the police for 1 time, and light-emitting diode glitters synchronously simultaneously; Electric magnetic buzzer is as the load of switch triode; Light-emitting diode and resistance are as the load of switch triode.Display voltage comparator in the automobile-used signal lamp resistance value testing circuit is used for the demonstration of automobile-used signal lamp " bright " and " putting out " two states; Another fault detection voltage comparator is used for inspection vehicle and judges that with this normally whether automobile-used signal lamp with the resistance value size of signal lamp.
The utility model provides a kind of can make things convenient for the means of promptly understanding automobile-used signal lamp mode of operation, has improved the safety of travelling in greasy weather or evening greatly, and has dependable performance, advantage can be installed on various existing vehicles etc.
Further describe below by way of embodiments and drawings.
Description of drawings
Accompanying drawing is the circuit structure diagram of the automobile-used signal lamp failure detector of the utility model.
The specific embodiment
With reference to accompanying drawing, will be described in detail specific embodiments of the present utility model.
Accompanying drawing has provided a kind of circuit structure of concrete scheme by automobile-used signal lamp failure detector described in the utility model.In the accompanying drawings, show by automobile-used signal lamp resistance value testing circuit 1, signal triggering circuit 2, oscillating circuit 3, sound and light alarm display circuit 4, diode 5,6,11 and 32, display voltage comparator 8 and fault detection voltage comparator 9, resistance 39,15,18,28,29,13,26,22 and 23, electric capacity 30, reverser 20, non-conjunction 31,555 time-base integrated circuits 27, electric magnetic buzzer 25, switch triode 24 and 14, light-emitting diode 21, power supply 36, switch 7,33, two voltage comparators 8 of automobile-used signal lamp, 9 reverse input end 10 and 17, positive input 16 and 37; Two comparator output terminals 12 and 19, the mouth 34 of trigger end 35,555 time-base integrated circuits 27 of reverser mouth 38,555 time-base integrated circuits 27, input end 40 of reverser 31 and the annexation of mouth 41.
In the accompanying drawings, switch 7, diode 5,6 and automobile-used signal lamp 33 are formed automobile-used signal lamp 33 resistance sampling branch roads, switch 7 other end power connections 36.The reverse input end 10 of display voltage comparator 8 is connected with the positive pole of diode 11, and the negative pole of diode 11 is connected with the negative pole of automobile-used signal lamp 33 and diode 5, automobile-used signal lamp 33 other end ground connection, and resistance 39 other ends are ground connection also; The positive input 37 of display voltage comparator 8 is connected with diode 6, switch 7 and resistance 39.The mouth 12 of display voltage comparator 8 is connected through the base stage of resistance 13 with switch triode 14.The negative pole of the reverse input end 17 of fault detection voltage comparator 9 and signal lamp 33, diode 5 is connected with resistance 18, and the other end of resistance 18 is connected with power supply 36: the positive input 16 of fault detection voltage comparator 9 is connected with power supply 36 through resistance 15; The mouth 19 of fault detection voltage comparator 9 is connected with the input end of phase inverter 20.The input end of the mouth of phase inverter 20 and non-conjunction 31 and the positive pole of diode 32 are connected, and the negative pole of diode 32 is connected with the trigger end 35 of 555 time-base integrated circuits 27.Another input end 40 of non-conjunction 31 is connected with the mouth 34 of 555 time-base integrated circuits 27, and the mouth 41 of non-conjunction 31 is connected with resistance 26; Resistance 28,29 and electric capacity 30 and 555 time-base integrated circuits 27 are formed oscillating circuit 3.The mouth of time-base integrated circuit 27 is connected with resistance 23, and 555 time-base integrated circuits 27 also are connected with power supply 36 and earth point; The other end of resistance 23 is connected with the base stage of switch triode 24.The collecting electrode of switch triode 24 is connected with the negative pole of electric magnetic buzzer 25.The positive pole of electric magnetic buzzer 25 is connected with power supply 36.The grounded emitter of switch triode 24.The grounded emitter of switch triode 14, base stage is connected with resistance 13, and collecting electrode is connected with the negative pole of resistance 26, light-emitting diode 21.The positive pole of light-emitting diode 21 is connected with power supply 36 by resistance 22.
The principle of work of the automobile-used signal lamp failure detector of the utility model is: in normal operation, connect switch 7, electric current through diode 5 and 6 and automobile-used signal lamp 33 flow to earth point, automobile-used signal lamp 33 is lighted, the mouth 12 output high level of display voltage comparator 8 are connected switch triodes 14 base stages through resistance 13 and are made switch triode 14 conductings at this moment, electric current constitutes the loop through the collector and emitter ground connection of resistance 22, light-emitting diode 21 and switch triode 14.Light-emitting diode 21 is lighted.Simultaneous faults detects voltage comparator 9 and also exports high level, and through the phase inverter 20 anti-phase low levels that become, 555 time-base integrated circuits 27 are not triggered, its mouth 34 output low levels, and switch triode 24 ends, and electric magnetic buzzer 25 is noiseless.This moment, damaging or open circuit as automobile-used signal lamp 33 fracture of wires is the resistance infinity, display voltage comparator 8 output low levels, switch triode 14 ends: and fault detection voltage comparator 9 output low levels are through the phase inverter 20 anti-phase high level that become, trigger 27 vibrations of 555 time base circuits, the square wave of oscillation frequency 1HZ makes switch triode 24 by above-mentioned oscillation frequency conducting through mouth 34 outputs of 555 time base circuits 27, end conducting.Electric magnetic buzzer 25 is also by said frequencies sounding alarm at intermittence: the mouth 34 of 555 time base circuits 27 makes its mouth 41 also export high and low level successively by above-mentioned oscillation frequency through non-conjunction 31 simultaneously, and light-emitting diode 21 intermittently glitters.
According to above-mentioned principle, during switch 7 access failures, as automobile-used signal lamp 33 filament burn outs or automobile-used signal lamp 33 place branch road line broken circuits, this automobile-used signal lamp failure detector is sound and light alarm in a manner described also.
Claims (2)
1, a kind of automobile-used signal lamp failure detector, by automobile-used signal lamp resistance value testing circuit (1), signal triggering circuit (2), oscillating circuit (3) and acousto-optic alarm display circuit (4) are formed, it is characterized in that: contain two diode (5), (6) of serial connection mutually in the automobile-used signal lamp resistance value testing circuit (1), the negative pole of diode (5) is connected with automobile-used signal lamp (33), and the positive pole of diode (6) is connected with switch (7); The other end ground connection of automobile-used signal lamp (33), the other end of switch (7) is connected with power supply (36); Containing two voltage comparators in the automobile-used signal lamp resistance value testing circuit (1) is display voltage comparator (8) and fault detection voltage comparator (9), the positive input (37) of display voltage comparator (8) is connected with resistance (39) with switch (7), resistance (39) other end ground connection; The reverse input end (10) of display voltage comparator (8) is connected with the positive pole of diode (11); The negative pole of diode (11) is connected with the negative pole of automobile-used signal lamp (33) and diode (5); The mouth (12) of display voltage comparator (8) is connected through the base stage of resistance (13) with switch triode (14); The positive input (16) of fault detection voltage comparator (9) is connected with power supply (36) through resistance (15), its reverse input end (17) is connected with automobile-used signal lamp (33) with the negative pole of diode (5), the negative pole of diode (11), be connected with power supply (36) through resistance (18) simultaneously, the input end of the phase inverter (20) in the mouth (19) of fault detection voltage comparator (9) and the signal triggering circuit (2) is connected.
2, automobile-used signal lamp failure detector according to claim 1, it is characterized in that sound and light alarm display circuit (4) contains light-emitting diode (21) and electric magnetic buzzer (25), electric magnetic buzzer (25) is pressed per second and is intermittently reported to the police for 1 time, and light-emitting diode (21) glitters synchronously simultaneously; Electric magnetic buzzer (25) is as the load of switch triode (24); Light-emitting diode (21) and resistance (22) are as the load of switch triode (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255552 CN2635453Y (en) | 2003-07-14 | 2003-07-14 | Vehicle signal lamp failure detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255552 CN2635453Y (en) | 2003-07-14 | 2003-07-14 | Vehicle signal lamp failure detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2635453Y true CN2635453Y (en) | 2004-08-25 |
Family
ID=34295007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255552 Expired - Fee Related CN2635453Y (en) | 2003-07-14 | 2003-07-14 | Vehicle signal lamp failure detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2635453Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862275B (en) * | 2005-04-13 | 2010-05-26 | 通用汽车环球科技运作公司 | LED turn signal and error detecting method |
-
2003
- 2003-07-14 CN CN 03255552 patent/CN2635453Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862275B (en) * | 2005-04-13 | 2010-05-26 | 通用汽车环球科技运作公司 | LED turn signal and error detecting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |