CN2181431Y - Monitoring alarm device for automotive signal lamp - Google Patents
Monitoring alarm device for automotive signal lamp Download PDFInfo
- Publication number
- CN2181431Y CN2181431Y CN 93226744 CN93226744U CN2181431Y CN 2181431 Y CN2181431 Y CN 2181431Y CN 93226744 CN93226744 CN 93226744 CN 93226744 U CN93226744 U CN 93226744U CN 2181431 Y CN2181431 Y CN 2181431Y
- Authority
- CN
- China
- Prior art keywords
- signal light
- automobile signal
- automobile
- alarm device
- signal lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a monitoring alarm device for automobile signal lamps. At present, no device can detect and display the damages of automobile signal lamps. The utility model comprises a detection device and an alarm device which is connected with the detection device; the detection device comprises a sampling resistor and a detecting triode, the sampling resistor is serially connected between a detected automobile signal lamp and a switch of the automobile signal lamp, and the base electrode of the detecting triode is connected with the end which is adjacent to the automobile signal lamp of the sampling resistor; the alarm device is arranged in the operator cab of the automobile, and once the automobile signal lamp generates faults, the alarm device can alarm timely to the driver of the automobile.
Description
The utility model relates to a kind of annunciator, relates in particular to a kind of automobile signal light detection alarm device.
On various vehicles, generally all be provided with various signal lamps, as indicator, stoplight stop lamp, backing-up lamp etc.When automobile caused automobile signal light to damage owing to a variety of causes in use, the driver generally was difficult to discovery in time, is easy to cause various traffic accidents like this.Therefore press for and a kind ofly can in operator's compartment, show the warning device whether each automobile signal light damages.According to contriver's investigation and retrieval, still there is not this series products at present.
Thereby the purpose of this utility model is to provide a kind of automobile signal light detection alarm device, and it can hinder and timely warning driver when damaging for some reason at automobile signal light.
Automobile signal light detection alarm device of the present utility model, it is contained on the current supply circuit of automobile signal light, it comprises detecting device and the warning device that links to each other with described detecting device, described detecting device comprises sample resistance and detection transistor, described sample resistance is serially connected between detected automobile signal light and the vehicle signal light switch, and the base stage of described detection transistor links to each other with the end that described sample resistance links to each other with automobile signal light.
When automobile lamp opens circuit because of various faults, detection transistor base stage (input end) change of voltage, collecting electrode (mouth) output of detection transistor is changed, thereby the interior warning device work of operator's compartment that is installed in that control is attached thereto remind this car light of driver to break down.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Fig. 1 is the block diagram of automobile signal light detection alarm device of the present utility model, and the connection diagram of this annunciator and automobile signal light;
Fig. 2 is the circuit diagram of an embodiment of automobile signal light detection alarm device of the present utility model;
Fig. 3 is the circuit diagram of another embodiment of the present utility model.
As shown in Figure 1, the utility model and automobile signal light detection alarm device comprise detecting device 1 and warning device 2, and detecting device 1 is serially connected in automobile signal light L and controls between the K switch of this signal lamp L.When automobile signal light L because of various faults, cause when opening circuit as reasons such as bad contact, filament fusing, detecting device 1 promptly to be attached thereto to warning device 2 output signals, warning device 2 is reported to the police to chaufeur, this signal lamp L of announcement does not work.Automobile signal light detection alarm device of the present utility model is by electric power storage vapour 3 power supplies to automobile signal light L power supply.
Referring to Fig. 2, Fig. 2 shows a kind of physical circuit figure of Fig. 1 block diagram.As shown in Figure 2, the detecting device among Fig. 11 comprises sample resistance R and detection transistor BG1.Sample resistance R is serially connected between automobile signal light L and the automobile signal light K switch.The base stage of detection transistor BG1 is connected between sample resistance R and the automobile signal light L.Warning device 2 among Fig. 1 comprises an aerotron BG2 and plays the light-emitting diode D1 Homeway.com Chinese percussion instrument 5 of demonstration and warning effect.The collecting electrode of the detection transistor BG1 of detecting device 1 links to each other with warning device 2 by a reverse bonded assembly diode D2.This warning device 2 is a custom circuit, and relevant its concrete structure just repeats no more at this.
Describe the principle of work of car light fault display alarm of the present utility model below in detail.Referring to Fig. 2, when car light L normal operation, K switch is closed, and storage battery 3(sees Fig. 1, is generally 12V) behind sample resistance R, power to automobile signal light L.For the signal lamp L of different capacity,, just can guarantee that the pressure drop on the sample resistance R is about 1V as long as the resistance of sample resistance R is selected.At this moment, the input circuit of detection transistor BG1 has forward current, detection transistor BG1 conducting, and its current collection is high potential very.Aerotron BG2 in the warning device 2 is ended, and news Chinese percussion instrument 5 is sounding not, and light-emitting diode D1 does not work.
If after automobile signal light L hindered open circuit for some reason, because the resistance value ratio sample resistance R of the biasing resistor R3 of detection transistor BG1 is big tens times, thereby the base tension of detection transistor BG1 ended detection transistor BG1 near storage battery 3 voltages (12V).Be connected the diode D2 conducting between detection transistor BG1 and the warning device 2, make aerotron BG2 emitter-base diode forward bias and conducting, thereby news Chinese percussion instrument 5 gets electric sounding, luminous utmost point pipe D1 is luminous, circuit alarm, the warning driver notices that this automobile signal light L breaks down.
Fig. 3 shows the circuit diagram of another embodiment of the present utility model.As shown in Figure 3,1. it be in parallel two diode DA, DB on the sample resistance R of detecting device with the difference of automobile signal light detecting device shown in Figure 2; 2. adopted the warning device of another kind of circuit.The effect of parallel diode is to make annunciator can be suitable for the signal lamp of different capacity on sample resistance R, and the resistance that need not change sample resistance R adapts to different signal lamps.This be because diode DA, DB can guarantee signal lamp L normal operation the time pressure drop on it for and only be about 1 volt, can not change up and down because of different signal lamps, guaranteed detection transistor BG1 conducting all the time when signal lamp L normal operation.Warning device among relevant this embodiment, they are a custom circuit, this be not described in detail its structure and principle of work.Fig. 2 and Fig. 3 CTC (Centell Technology Corporation) Chinese percussion instrument 5 can adopt music or language integrated package.
Claims (3)
1, a kind of automobile signal light detection alarm device, be installed on the current supply circuit of automobile signal light, it is characterized in that, it comprises that detecting device comprises sample resistance and detection transistor with the described detecting device of warning device that links to each other with described detecting device, described sample resistance is serially connected between detected automobile signal light and the vehicle signal light switch, and the base stage of described detection transistor links to each other with the end that described sample resistance links to each other with automobile signal light.
2, automobile signal light detection alarm device as claimed in claim 1 is characterized in that described detecting device also comprises the sampling diode, and described sampling diode is in parallel with described sample resistance.
3, automobile signal light detection alarm device as claimed in claim 1 is characterized in that, connects by a diode between the mouth of described detecting device and the input end of described warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226744 CN2181431Y (en) | 1993-12-21 | 1993-12-21 | Monitoring alarm device for automotive signal lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93226744 CN2181431Y (en) | 1993-12-21 | 1993-12-21 | Monitoring alarm device for automotive signal lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2181431Y true CN2181431Y (en) | 1994-11-02 |
Family
ID=33804297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93226744 Expired - Fee Related CN2181431Y (en) | 1993-12-21 | 1993-12-21 | Monitoring alarm device for automotive signal lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2181431Y (en) |
-
1993
- 1993-12-21 CN CN 93226744 patent/CN2181431Y/en not_active Expired - Fee Related
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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 |