CN201965761U - Traffic lights with dual power supply - Google Patents
Traffic lights with dual power supply Download PDFInfo
- Publication number
- CN201965761U CN201965761U CN201120097071XU CN201120097071U CN201965761U CN 201965761 U CN201965761 U CN 201965761U CN 201120097071X U CN201120097071X U CN 201120097071XU CN 201120097071 U CN201120097071 U CN 201120097071U CN 201965761 U CN201965761 U CN 201965761U
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- current source
- constant
- triode
- lamp panel
- source circuit
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- Expired - Fee Related
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Abstract
The utility model discloses traffic lights with dual power supply which comprises a signal lamp panel provided with a constant-current source circuit and installed with LED fluorescents that are connected with the constant-current source circuit. The constant-current source circuit is respectively connected with two D880 triodes. The utility model can realize dual power supply when the constant current source circuit is connecting with a normal work triode and a reserved triode. When the normal work triode is damaged, the reserved triode starts to work so that guarantees normal work of signal lamps.
Description
Technical field
The utility model relates to a kind of traffic lights that supply power with double circuit.
Background technology
Traffic lights are the important component parts in the traffic signals, are the basic languages of road traffic.Traffic lights are made up of red light (no through traffic in expression), green light (expression allows current), amber light (expression caution).
Road traffic signal lamp is a classification in the traffic safety product, is generation, the raising road service efficiency of strengthening control of traffic and road, minimizing traffic hazard, a kind of important tool of improving traffic.Be applicable to intersections such as cross, T-shaped, by road traffic signal controller control, guiding vehicle and pedestrains safety are current in an orderly manner.
The kind of traffic lights has: motor vehicle signal lamp, bicycle signal lamp, pedestrian crosswalk signal lamp, lane signal lamp, direction instruction signal lamp, flash of light warning light, road and railway plane intersection signal lamp etc.
LED (light emitting diode) is a kind of new type light source of Development and Production in recent years, and having power consumption, little (electric current has only 10～20mA), brightness height (light intensity can reach up to ten thousand mcd), volume little (diameter I reach 3mm), (light emitting diode only heavy zero point several grams) in light weight, long advantages such as (mean lifetimes 100,000 hours) of life-span.Now progressively replace incandescent lamp, low-voltage halogen tungsten to make road traffic signal lamp.
Existing traffic lights all are one road power supply power supplies, in case during the triode that is connected with constant current source damage, whole signal lamp just quits work, and has a strong impact on normal traffic and commands.
The utility model content
The utility model technical issues that need to address just are to overcome the defective of prior art, a kind of traffic lights that supply power with double circuit are provided, its operate as normal triode and standby triode by being connected with constant-current source circuit, can realize supplying power with double circuit, when the operate as normal triode damages, standby triode starts work automatically, guarantees the operate as normal of signal lamp.
For addressing the above problem, the utility model adopts following technical scheme:
The utility model provides a kind of traffic lights that supply power with double circuit, and comprises the signal lamp lamp panel, and described signal lamp lamp panel is provided with constant-current source circuit, and the LED fluorescent tube is installed on the lamp panel, and the LED fluorescent tube is connected with constant-current source circuit; Described constant-current source circuit is connected with 2 D880 triodes respectively.One of them is the operate as normal triode, and another is standby triode.
Described lamp panel is red light lamp panel, amber light lamp panel or green light lamp panel.
Operate as normal triode and the standby triode of the utility model by being connected with constant-current source circuit can be realized supplying power with double circuit, and when the operate as normal triode damaged, standby triode started work automatically, guarantees the operate as normal of signal lamp.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit theory diagrams.
Embodiment
As shown in Figure 1, the utility model provides a kind of traffic lights that supply power with double circuit, and comprises signal lamp lamp panel 1, and described signal lamp lamp panel is provided with constant-current source circuit 2, and LED fluorescent tube 3 is installed on the lamp panel, and the LED fluorescent tube is connected with constant-current source circuit; Circuit theory diagrams of the present utility model as shown in Figure 2, constant-current source circuit is connected with 2 D880 triodes respectively.One of them is the operate as normal triode, and another one is standby triode.
Described lamp panel can be red light lamp panel, amber light lamp panel or green light lamp panel.
Operate as normal triode and the standby triode of the utility model by being connected with constant-current source circuit can be realized supplying power with double circuit, and when the operate as normal triode damaged, standby triode started work automatically, guarantees the operate as normal of signal lamp.
It should be noted that at last: obviously, the foregoing description only is for the utility model example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the present utility model.
Claims (2)
1. the traffic lights that supply power with double circuit comprise the signal lamp lamp panel, and described signal lamp lamp panel is provided with constant-current source circuit, and the LED fluorescent tube is installed on the lamp panel, and the LED fluorescent tube is connected with constant-current source circuit; It is characterized in that: described constant-current source circuit is connected with 2 D880 triodes respectively.
2. the traffic lights that supply power with double circuit as claimed in claim 1 is characterized in that: described lamp panel is red light lamp panel, amber light lamp panel or green light lamp panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120097071XU CN201965761U (en) | 2011-04-06 | 2011-04-06 | Traffic lights with dual power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120097071XU CN201965761U (en) | 2011-04-06 | 2011-04-06 | Traffic lights with dual power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965761U true CN201965761U (en) | 2011-09-07 |
Family
ID=44528310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120097071XU Expired - Fee Related CN201965761U (en) | 2011-04-06 | 2011-04-06 | Traffic lights with dual power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683461A (en) * | 2017-03-07 | 2017-05-17 | 晋江市东坤电子实业有限公司 | Traffic signal indicator lamp device |
-
2011
- 2011-04-06 CN CN201120097071XU patent/CN201965761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106683461A (en) * | 2017-03-07 | 2017-05-17 | 晋江市东坤电子实业有限公司 | Traffic signal indicator lamp device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20150406 |
|
| EXPY | Termination of patent right or utility model |