CN2097778U - Automatic determining alarm for motor vehicle lamp breakdown - Google Patents
Automatic determining alarm for motor vehicle lamp breakdown Download PDFInfo
- Publication number
- CN2097778U CN2097778U CN 91223686 CN91223686U CN2097778U CN 2097778 U CN2097778 U CN 2097778U CN 91223686 CN91223686 CN 91223686 CN 91223686 U CN91223686 U CN 91223686U CN 2097778 U CN2097778 U CN 2097778U
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- diode
- resistance
- light
- car light
- aerotron
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Abstract
The utility model provides an automatic determining alarm for motor vehicle lamp faults, a detection circuit, a logic switch and an alarm circuit are composed of transistors, diodes, resistor, capacitance, etc. The automatic detecting alarm for motor vehicle lamp faults can monitor whether the vehicle lamp is broken when the vehicle in the normal travel but not under the brake condition or the steering condition, etc., when the switch of the corresponding vehicle lamp is switched on, however, the lamp is damaged, the automatic determining alarm for motor vehicle lamp faults can make the alarm to the driver. Therefore, the driver is caused to know the damage of the vehicle lamp to facilitate the fault elimination and ensure the traveling safety.
Description
The utility model relates to the device of the automatic detection alarm of a kind of automobile lamplight fault.
During motor-driven vehicle going, when desire is turned or brake, show with car light all that night travel also needs come illuminating road with light, so car light is the guarantee of traffic safety.But, present self-propelled vehicle is when the car light et out of order can not shows signal, owing to there is not sound and light alarm, chaufeur often and do not know, still continue to travel and do not take measures, often cause the misunderstanding of the chaufeur of its back or opposite driving vehicle to cause traffic accident.Therefore, people are managing to change this situation.As just introducing a kind of automobile brake lamp monitor on the electronics newspaper on March 2nd, 1986, it is made up of aerotron, light-emitting diode and resistance, by the long and short of lumination of light emitting diode or the not luminous quality of judging stoplight stop lamp.December in 1989 was also introduced a kind of motor turning, brake electronic audio device on Beijing on the 2nd electronics newspaper, it also is made up of aerotron, diode, resistance, electric capacity, loudspeaker have been settled in addition, remind the driver after turning to, in time to turn off steering indicating light on the one hand, whether send the quality that sound equipment is judged stoplight stop lamp synchronously by loudspeaker when braking on the other hand." automobile journal " in this external in February, 1991 also introduced a kind of brake lamp and damaged indicating device, judges by whether indicator lamp when the brake is luminous.But these methods all are to brake or turning to and stoplight stop lamp, sound visual alarm just when steering indicating light damages, though and stoplight stop lamp or steering indicating light have damaged and do not have signal prompt to give chaufeur when normal vehicle operation is not braked or turned to, promptly can not understand the quality of car light in advance, when braking or turning to, just find late, possible accident takes place, what have in the said method in front in addition only has a light warning, this tends to ignore when chaufeur concentrates one's energy to drive, and these methods can not monitor other signal lamp beyond the stoplight stop lamp.
The purpose of this utility model provides the automatic detection alarm device of a kind of automobile lamplight fault, and it can detect all light that need monitor on the vehicle, and as long as car light damages immediately reports to the police, rather than when braking or turning to, just send alerting signal.
Scheme of the present utility model is such.(see figure 2)
It has a testing circuit, detected car light is connected in the testing circuit, car light just often, the base current of aerotron through car light extremely in the testing circuit, therefore the aerotron conducting has collector current by positive source through aerotron BG1 extremely, aerotron BG1 base current can not be through car light to ground, so aerotron BG1 ends no collector current circulation when car light damaged.
Logical switch is made up of two aerotrons of BG1, BG2 and diode D4, D5, D6, when the normal BG1 conducting of car light has collector current to flow through, because of BG1 is a saturation conduction, so emitter, inter-collector are equivalent to short circuit, collector potential is almost identical with the positive source current potential, the D4 reverse bias ends, and aerotron BG2 does not have base current and is in yet and ends.When car light damaged, then BG1 did not have base current owing to open circuit, and BG1 ends, and is equivalent to the BG1 emitter and opens a way with inter-collector, so the conducting of diode D4 positively biased, aerotron BG2 has base current, the BG2 conducting.
Warning circuit is made up of aerotron BG2 and light-emitting diode D7 and buzzer phone etc.Car light just often, BG2 ends, then warning circuit is obstructed, light-emitting diode, buzzer phone are not worked, no signal is sent.When car light damages, the BG2 conducting, electric current through positive source, aerotron BG2 to light-emitting diode, buzzer phone to ground, lumination of light emitting diode simultaneously, the buzzer phone sounding reminds the chaufeur car light that damage is arranged.
This shows,, warn as long as the car light damage just has signal to send to chaufeur no matter whether lighting switch is connected.This is the major advantage of the utility model than prior art.
Fig. 1 is the utility model scheme circuit;
Fig. 2 is a block scheme of the present utility model;
Fig. 3 is the scheme circuit that the utility model detects multichannel light.
Describe details of the present utility model and service condition in detail below in conjunction with accompanying drawing.
The utility model mainly is linked in sequence and is formed by testing circuit (30), logical switch (40), warning circuit (50), and detected car light (13) is serially connected in the testing circuit, and light-emitting diode (18) and buzzer phone (20) are serially connected in warning circuit.
In the testing circuit (30), one road electric current is D1 through power supply to lighting switch (15) the back diode of connection (1) of positive 12V, is connected to car light (13) ground connection then again.Aerotron (6) is that the emitter of BG1 connects positive source through key switch (16), base stage connects resistance (4) earlier, connect a resistance (2) again, then through car light (13) ground connection, collecting electrode is connecting resistance (8) back ground connection then, diode (3) (5) is D3, D2 series connection back is in parallel with emitter and the resistance (4) of BG1, another road connects a diode (12) earlier behind key switch be D6, the diode (11) of going here and there again be behind the D5 to aerotron (10) be the emitter of BG2, the base stage of BG2 then is connected to through a resistance (9) and is connected on the collecting electrode of BG1 after diode (7) is D4, the collecting electrode of BG2 connects a light-emitting diode (18) behind resistance (14) be D7, again through buzzer phone (20) ground connection, between D7 and ground and a capacitive bypass alternating component arranged, owing to do not need buzzer phone work then before buzzer phone and between ground and connect a short circuiting switch (17) sometimes.
After key switch (16) is connected, automatically detect beginning, when car light just often, the positive 12V voltage of power supply is added in the emitter of BG1, electric current is through emitter → base stage → resistance (4) → resistance (2) → car light (13) → ground of BG1, form the base current of BG1, and make the BG1 conducting, collector current is through BG1 emitter → collecting electrode → resistance (8) → ground, diode (3), (5) related with BG1 then shunting and the pressure stabilization function of rising of series connection earlier, the resistance (2) of string in the base current loop, (4) resistance is less, make BG1 be in saturation conditions, make the BG1 emitter, collecting electrode is near short circuit, and at this moment logical switch is except that BG1 is saturated, D4 instead ends partially, thereby BG2 also ends because of no base current, and buzzer phone (20) does not ring, and luminotron D7 does not work.
When car light damages, because car light (13) causes and opens circuit, BG1 ends, the emitter of BG1, open collector, the conducting of D4 positively biased, the base current of BG2 is through resistance (9), D4, resistance (8) extremely, the BG2 conducting, to ground, D7's its collector current glistens through resistance (14), D7, buzzer phone (20), and the buzzer phone sounding is warned to chaufeur.
At car light just often, though there is electric current to flow through car light in the detection, but very I is ignored, and car light can be not luminous yet, has only when connecting to turn to or during the lighting switch of brake etc., supply current just can be luminous to car light through D1, the D1 of string in vehicle light circuit can make two in parallel car lights isolate mutually, and BG1 saturation conduction still ends BG2 in the time of also can work as the lighting switch connection, the alarm free signal, BG1 just ends when having only car light to damage.
D5, D6 are in order to reduce BG2 emitter current potential to prevent not take an advanced study into flase alarm because of BG1 is saturated.Fig. 3 has represented multi-path car lamp is detected the also circuit of auto alarm, and D7 and buzzer phone are multi-way shared.
The utility model is equipped with the self-propelled vehicle that three-terminal regulator block (21) is applicable to the minus earth of all 12V, 24V, and three-terminal regulator block can select 7912,7909,7915 etc. for use, is connected with a diode (22) on the end of three-terminal regulator block.It shields and prevents that power supply from connecing instead.If if aerotron (6) selects for use is NPN type pipe, diode (1), (7) upside-down mounting then three-terminal regulator block should be selected models such as 7812,7809,7815 for use in the utility model.
From a diode D4 is arranged corresponding to each car light, get a signal or D4 is changed into light-emitting diode from each D4 and then can accurately demonstrate car light in bad order, or add digital circuits such as coding, matrix and go out car light in bad order with numeral or graphic display.
Claims (5)
1, the automatic detection alarm device of a kind of machine col car light light fault, it is by testing circuit (30), logical switch (40), warning circuit (50) and flashing diode (18) buzzer phone (20) are formed, the routing power ground connection after lighting switch (15) connects diode (1) to be connected to car light (13) again that it is characterized in that electric current, the emitter of aerotron (6) is connected to positive source through key switch (16), its base stage connects a resistance (4), connect a resistance (2) more then through car light (13) ground connection, collecting electrode is connected to resistance (8) back ground connection, diode (3), (5) the series connection back is in parallel with the emitter and the resistance (4) of aerotron (6), the emitter of aerotron (10) is through diode (11), (12) be connected to key switch (16), base stage then is connected to diode (7) through resistance (9) and is connected in then on the collecting electrode of aerotron (6), and its collecting electrode is connected to a light-emitting diode (18) again through a buzzer phone (20) ground connection through resistance (14).
2, the automatic detection alarm device of automobile lamplight fault as claimed in claim 1 is characterized in that described diode (7) can change light-emitting diode into.
3, the automatic detection alarm device of automobile lamplight fault as claimed in claim 1 is characterized in that corresponding each car light of described diode (7) has one, and the signal on the diode can take out and encode.
4, the automatic detection alarm device of automobile lamplight fault as claimed in claim 1, the trade mark that it is characterized in that employed three terminal regulator is 7912 or 7909,7915,7924.
5, the automatic detection alarm device of automobile lamplight fault as claimed in claim 1, the trade mark that it is characterized in that employed three terminal regulator is 7812 or 7809,7815,7824.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223686 CN2097778U (en) | 1991-08-27 | 1991-08-27 | Automatic determining alarm for motor vehicle lamp breakdown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91223686 CN2097778U (en) | 1991-08-27 | 1991-08-27 | Automatic determining alarm for motor vehicle lamp breakdown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2097778U true CN2097778U (en) | 1992-03-04 |
Family
ID=4930304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91223686 Withdrawn CN2097778U (en) | 1991-08-27 | 1991-08-27 | Automatic determining alarm for motor vehicle lamp breakdown |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2097778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340835A (en) * | 2017-01-23 | 2018-07-31 | 东洋建苍电机股份有限公司 | Vehicle condition exception alarming device and vehicle containing the device |
-
1991
- 1991-08-27 CN CN 91223686 patent/CN2097778U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340835A (en) * | 2017-01-23 | 2018-07-31 | 东洋建苍电机股份有限公司 | Vehicle condition exception alarming device and vehicle containing the device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |