CN2574942Y - Vehicle signal lamp filament breaking display device - Google Patents
Vehicle signal lamp filament breaking display device Download PDFInfo
- Publication number
- CN2574942Y CN2574942Y CN 02270433 CN02270433U CN2574942Y CN 2574942 Y CN2574942 Y CN 2574942Y CN 02270433 CN02270433 CN 02270433 CN 02270433 U CN02270433 U CN 02270433U CN 2574942 Y CN2574942 Y CN 2574942Y
- Authority
- CN
- China
- Prior art keywords
- piezoelectric ceramic
- ceramic piece
- integrated chip
- resistance
- model
- 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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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model discloses a sound monitor of vehicle brake lamps, which is mainly composed of a resistor, a music integration piece, and a piezoelectric ceramic piece. The sound monitor of vehicle brake lamps is characterized in that a driver can exactly judge whether a rear brake lamp circuit is normal or not according to the sound size of the piezoelectric ceramic piece after a brake pedal is treaded. The sound monitor of vehicle brake lamps avoids accidents of rear vehicle rear-end, collision, etc. The utility model is used for the field of manufacture, maintenance, and assembly for vehicles.
Description
One, technical field
The utility model relates to a kind of audiomonitor, exactly is a kind of car brakeing lamp audiomonitor.
Two, background technology
At present, power actuated vehicle in the process of moving, whether chaufeur perception in time brake lamp is normally luminous, monolateral bright, bilateral not working or brightness when very low appears in brake lamp, cause hidden danger to safe driving, easily cause back car phenomenon such as knock into the back, and violated in " People's Republic of China's regulation of road traffic control " requirement the car brakeing lamp.
Three, summary of the invention
The purpose of this utility model is to provide a kind of brake lamp when above problem takes place, and can send the car brakeing lamp audiomonitor of early warning signal.
For reaching above purpose, the utility model mainly is made up of resistance, music integrated chip, piezoelectric ceramic piece, it is characterized in that: the resistance of on the circuit of brake lamp and battery feed, connecting, a music integrated chip in parallel on resistance, piezoelectric ceramic piece and music integrated chip are connected in parallel.
Its principle of work is: music integrated chip provides alternating voltage for piezoelectric ceramic piece, piezoelectric ceramic piece sends the sound, when stepping on brake pedal, circuit between battery feed and the brake lamp is connected, in normal electric current, the voltage maximum of flowing through when luminous of brake lamp, at this moment, music integrated chip is also maximum for the alternating voltage that piezoelectric ceramic piece provides, and the sound that piezoelectric ceramic piece sends is big; Brake lamp monolateral bright, when the shell degree is very low, the big current decay of flowing through, this moment music integrated chip also weaken for the alternating voltage that piezoelectric ceramic piece provides, the sound that piezoelectric ceramic piece sends is little, when brake lamp does not work, there is not the electric current resistance of flowing through, so piezoelectric ceramic piece does not send the sound.
Owing to adopt above technical scheme, chaufeur when driving, pin is stepped on brake pedal, from the size that audiomonitor is sounded, just know braking car light circuit normally whether, provide guarantee to safe driving.
Four, description of drawings
The utility model is described in further detail now to tie accompanying drawing
Fig. 1 is the utility model structure principle chart
1 resistance, 2 music integrated chip 3 piezoelectric ceramic pieces, 4 battery feeds, 5 brake pedals (6,7) brake lamies among the figure
Five, the specific embodiment
Among Fig. 1, resistance 1 is connected in the circuit between battery feed 4 and the brake lamp (6,7), and music integrated chip 2 is in parallel with resistance 1, and piezoelectric ceramic piece 3 is in parallel with music integrated chip 2.
Now specify each parts span and model:
Resistance 1: when battery feed voltage is 12v, back braking car light lamp rate when being 21w * 2, R gets 0.5 Ω (10w), and battery feed voltage is 24v, and rear brake lamp power is 21w * 2 o'clock, and R gets 1 Ω (10w).
Music integrated chip 2: power line voltage is 1.5V, and output impedance and FT-2T-4.0T (piezoelectric ceramic piece model) coupling gets final product.
Piezoelectric ceramic piece (P2T): model is FT-2T-4.0T
Claims (2)
1, a kind of car brakeing lamp audiomonitor, mainly form by resistance 1, music integrated chip 2, piezoelectric ceramic piece 3, it is characterized in that: the resistance 1 of connecting in braking car light (6,7) and battery feed 4 circuits, a music integrated chip 2 in parallel on resistance 1, piezoelectric ceramic piece 3 is connected in parallel with music integrated chip 2.
2, a kind of car brakeing lamp audiomonitor according to claim 1 is characterized in that: battery feed 4 voltages are that 12V, rear brake lamp power are 21W * 2 o'clock, and R gets 0.5 Ω (10W); Battery feed 4 voltages are that 24V, rear brake lamp power are 21W * 2 o'clock, and R gets 1 Ω (10W).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270433 CN2574942Y (en) | 2002-10-24 | 2002-10-24 | Vehicle signal lamp filament breaking display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02270433 CN2574942Y (en) | 2002-10-24 | 2002-10-24 | Vehicle signal lamp filament breaking display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2574942Y true CN2574942Y (en) | 2003-09-24 |
Family
ID=33735499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02270433 Expired - Fee Related CN2574942Y (en) | 2002-10-24 | 2002-10-24 | Vehicle signal lamp filament breaking display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2574942Y (en) |
-
2002
- 2002-10-24 CN CN 02270433 patent/CN2574942Y/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 |