CN2429373Y - Speedometer with photoelectric alarm for overspeed - Google Patents
Speedometer with photoelectric alarm for overspeed Download PDFInfo
- Publication number
- CN2429373Y CN2429373Y CN 00222692 CN00222692U CN2429373Y CN 2429373 Y CN2429373 Y CN 2429373Y CN 00222692 CN00222692 CN 00222692 CN 00222692 U CN00222692 U CN 00222692U CN 2429373 Y CN2429373 Y CN 2429373Y
- Authority
- CN
- China
- Prior art keywords
- overspeed
- speedometer
- photoelectric
- alarm
- light
- 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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- Indicating Measured Values (AREA)
Abstract
The utility model discloses a speedometer with a photoelectric alarm for overspeed, which is additionally provided with a photoelectric overspeed alarm system on a common speedometer, wherein, the alarm system is composed of a photoelectric circuit system and a light proof sheet fixed to a meter needle axis. When the vehicle speed achieves the limited vehicle speed, the light proof sheet synchronously rotating with the needle axis also rotates in a definite angle to partition an optical pass between an infrared transmitting tube and an infrared receiving tube. Thus the relevant electronic circuit acts and an LED in the limiting speed scale on a meter panel flashes (at frequency of about 1HZ) to indicate and alarm overspeed. The speedometer has simple and compact structure, reliable performance and low cost.
Description
The utility model relates to a kind of car speed mileage table with photoelectricity overspeed alarming function, belongs to meters.
At present, known car speed mileage table takes to print red sector on gauge panel, represents hypervelocity when the average speed indicator pointer points to red sector.This mode is difficult for when driving over the speed limit causing that chaufeur notes.
The purpose of this utility model provide a kind of can be in high vehicle speeds, begin auto alarm when the speed of a motor vehicle surpasses when limiting the speed of a motor vehicle, ensure the car speed mileage table of driving safety thereby remind chaufeur to note driving over the speed limit.
The purpose of this utility model can reach by following measure: the utility model is additional photoelectricity overspeed alarming system on common car speed mileage table, this system is by a photoelectric circuit system and being fixed on forming every mating plate on the instrument needle shaft, the photoelectric circuit system comprises transistor diode, aerotron, cond, resistance, light-emitting diode, infrared transmitting tube and infrared receiving tube, the electrical installation principle is seen Fig. 1, when light patch is cut off by object between this system's infrared transmitting tube and the infrared receiving tube, light-emitting diode glittering (the about 1HZ of frequency).According to instrument structure, light-emitting diode is bonded on the gauge panel, transistor diode, aerotron, cond, flash butt welding on PC board (I), infrared transmitting tube and infrared receiving tube are welded on the PC board (II), and PC board (I), (II) are connected to instrument support both sides.Be fixed on rotating synchronously with needle shaft on the instrument needle shaft every mating plate and meter hand, when the meter hand rotation is indicated to speed of a motor vehicle regulation alarming value, just in time cut off light patch (see figure 2) between infrared transmitting tube and the infrared receiving tube every mating plate, make relevant electronic circuit action, light-emitting diode glittering (the about 1HZ of frequency) reaches the purpose of overspeed alarming.
The drawing of accompanying drawing is described as follows:
The electrical installation schematic diagram of Fig. 1 photoelectricity overspeed alarming system.
The car speed mileage table structural representation of Fig. 2 band photoelectricity overspeed alarming function.
Among the figure: 1. 4. lead 5. lamp sockets of support 2. needle shafts, 3. PC board (I)
6. light-emitting diode 7. gauge panels 8. pointers 9. attaching partss 10. are every mating plate
11. PC board (II) 12. infrared receiving tubes, infrared transmitting tube
The utility model has the advantage of: electronic component commonly used is welded on the printed substrate, and is simple and compact for structure, every mating plate by 0.2 the metallic plate stamping-out that～0.25mm is thick forms, volume is little, in light weight, and through strict designing and calculating, its barycenter and needle shaft is turned to Moving center superposition, its additional rotation inertia is very little, does not affect accuracy of instrument, and the photoelectric alarm for overspeed system establishes one's own system, and does not need attached Add any velocity measurement mechanisms, the instrumentation principle is constant, and photoelectric technology is developing direction at present, and utilization has a extensive future.
Claims (2)
1, a kind of car speed mileage table with photoelectricity overspeed alarming function, it is characterized in that: be fixed on the needle shaft every mating plate, light-emitting diode is bonded on the gauge panel, and infrared transmitting tube and infrared receiving tube are welded on the PC board, and PC board is connected instrument support both sides.
2, the car speed mileage table of band photoelectricity overspeed alarming function according to claim 1, it is characterized in that: rotate synchronously with needle shaft every mating plate and pointer, when the pointer rotation is indicated to speed of a motor vehicle regulation alarming value, just in time cut off light patch between infrared transmitting tube and the infrared receiving tube every mating plate, make relevant electronic circuit action, the glittering warning of light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222692 CN2429373Y (en) | 2000-04-04 | 2000-04-04 | Speedometer with photoelectric alarm for overspeed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222692 CN2429373Y (en) | 2000-04-04 | 2000-04-04 | Speedometer with photoelectric alarm for overspeed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2429373Y true CN2429373Y (en) | 2001-05-09 |
Family
ID=33587375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222692 Expired - Fee Related CN2429373Y (en) | 2000-04-04 | 2000-04-04 | Speedometer with photoelectric alarm for overspeed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2429373Y (en) |
-
2000
- 2000-04-04 CN CN 00222692 patent/CN2429373Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| FG1K | Grant of 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 |