CN105774632A - Automatic dimmer for automobile - Google Patents
Automatic dimmer for automobile Download PDFInfo
- Publication number
- CN105774632A CN105774632A CN201410819503.1A CN201410819503A CN105774632A CN 105774632 A CN105774632 A CN 105774632A CN 201410819503 A CN201410819503 A CN 201410819503A CN 105774632 A CN105774632 A CN 105774632A
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- light
- integrated circuit
- sensitive element
- automobile
- automatic dimmer
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- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention provides an automatic dimmer for an automobile, which is to realize that an automobile can automatically switch a high beam light into a low beam light when meeting another automobile. A technical scheme adopted to realize the purpose of the invention is that the automatic dimmer for the automobile comprises a power supply, a relay, a photosensor, an integrated circuit, a triode and a changer-over switch.
Description
Technical field
The present invention relates to a kind of automobile automatic dimmer, especially relate to the far and near light induction automatic device for changing light of a kind of vehicle safety travel.
Background technology
At present, during vehicle going at night, driver's eyes is easily subject to head on the distant light irradiation sent a car and do not see pavement behavior, thus accidents caused, someone is referred to as " distance light killer ".
Current part driver is bad due to custom of driving, or even is disinclined to be switched to high beam dipped headlights, thus causing that vehicle is also open high beam and carries out intersection.Domestic statistics, in nocturnal vehicle accident, the accident relevant with high beam accounts for 3 four one-tenth, and in rising trend.
Summary of the invention
It is an object of the invention to provide a kind of automobile automatic dimmer, automatically high beam can be switched to dipped headlights when intersection solving vehicle.
Employed technical scheme comprise that such for realizing the object of the invention, a kind of automobile automatic dimmer, switch including power supply, relay, light-sensitive element, integrated circuit, audion and switching.
The input of described integrated circuit receives the signal of telecommunication from light-sensitive element.The outfan of described integrated circuit is connected with the input of described audion.The outfan of described audion concatenates described relay.The normally opened contact of described Control and normally-closed contact connect weak light lamp and the major light of automobile respectively.
Described power supply and described switching switch are directly connected to.Described switching on-off control major light position and weak light lamp position.
Further, described light-sensitive element adopts variable resistance to regulate sensitivity.
Further, when described integrated circuit input end voltage more than described supply voltage value 3/2nds time, described ic output output low level.When described integrated circuit input end voltage less than described supply voltage value 3/2nds time, described ic output output high level.
Further, described relay and a diodes in parallel.
Further, described light-sensitive element can be photoconductive resistance, light sensitive diode and phototriode.
As preferably, described light-sensitive element is photoconductive resistance.
Compared with prior art, high beam can be switched to dipped headlights to facilitate vehicle intersection when vehicle carries out intersection by this automatic light changing device for automobile automatically；Simultaneously after intersection, automatically dipped headlights being switched back into high beam, thus reaching the effect of automatic beam change, need not manually go operation, driver is more convenient, more hommization, also improves the safety driving vehicle.
Accompanying drawing explanation
Fig. 1 is principles of the invention block diagram；
Fig. 2 is the block diagram of the specific embodiment of the invention.
In figure: 1-power supply, 2-relay, 3-variable resistance, 4-light-sensitive element, 5-integrated circuit, 6-audion, 7-weak light lamp, 8-major light, 9-switches switch.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention and be only limitted to following embodiment.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacement and change, all should include in protection scope of the present invention.
A kind of automobile automatic dimmer, including power supply 1, relay 2, light-sensitive element 4, integrated circuit 5, audion 6 and switching switch 9.
The input of described integrated circuit 5 receives the signal of telecommunication from light-sensitive element 4.The outfan of described integrated circuit 5 is connected with the input of described audion 6.The outfan of described audion 6 concatenates described relay 2.The normally opened contact of described relay 2 control and normally-closed contact connect weak light lamp 7 and the major light 8 of automobile respectively.
Described power supply 1 is directly connected to described switching switch 9.Described switching switch 9 control major light position and weak light lamp position.
Described light-sensitive element 4 adopts variable resistance 3 to regulate sensitivity.
When described integrated circuit 5 input voltage more than described power supply 1 magnitude of voltage 3/2nds time, described integrated circuit 5 outfan output low level.When described integrated circuit 5 input voltage less than described power supply 1 magnitude of voltage 3/2nds time, described integrated circuit 5 outfan output high level.
Described relay 2 and a diodes in parallel, utilize the anti-phase breakdown capability of diode, for ballast coil voltage.
Described light-sensitive element 4 can be photoconductive resistance, light sensitive diode and phototriode.
In embodiment, described light-sensitive element 4 is photoconductive resistance.Described power supply 1 is 12V.Described automobile automatic dimmer darkening distance is more than 150m.The input of described integrated circuit 5 is、Foot, outfan isFoot.
Described switching switch 9 on automobile is placed in major light position, and when unglazed irradiation, the resistance of described light-sensitive element 4 is very big, makes integrated circuit 5、Foot voltage is higher than 2/3UDD(UDDVoltage for power supply 1), integrated circuit 5Foot output low level, so that described audion 6 ends.The power-off of described relay 2, its normally-closed contact remains closed, and major light 8 is bright, and weak light lamp 7 goes out.
When opponent vehicle major light is bright, during fast meeting, the other side's car light light-illuminating, on described light-sensitive element 4, makes the resistance of light-sensitive element 4 sharply decline, integrated circuit 5、Foot voltage is lower than 2/3UDD, itsFoot output high level, 6 sections of saturation conductions of described audion, described relay 2 obtains electric adhesive, and its normally opened contact closes, and major light 8 goes out, and weak light lamp 7 is bright.
After meeting, light-sensitive element 4 is unglazed irradiation again, integrated circuit 5Foot output low level, described audion 6 ends, and relay 2 dead electricity discharges, and its contact resets, and weak light lamp 7 goes out, and major light 8 is bright, then completes the automatic switchover of light.
Experiments show that, dimmer sensitivity is high, reliable operation.
Claims (6)
1. an automobile automatic dimmer, it is characterised in that: include power supply (1), relay (2), light-sensitive element (4), integrated circuit (5), audion (6) and switching switch (9)；
The input of described integrated circuit (5) receives the signal of telecommunication from light-sensitive element (4)；The outfan of described integrated circuit (5) is connected with the input of described audion (6)；The outfan of described audion (6) concatenates described relay (2)；Normally opened contact that described relay (2) controls and normally-closed contact connect weak light lamp (7) and the major light (8) of automobile respectively；
Described power supply (1) is directly connected to described switching switch (9)；Described switching switch (9) controls major light position and weak light lamp position.
2. a kind of automobile automatic dimmer according to claim 1, it is characterised in that: described light-sensitive element (4) adopts variable resistance (3) to regulate sensitivity.
3. a kind of automobile automatic dimmer according to claim 1, it is characterised in that: when described integrated circuit (5) input voltage more than described power supply (1) magnitude of voltage 3/2nds time, described integrated circuit (5) outfan output low level；When described integrated circuit (5) input voltage less than described power supply (1) magnitude of voltage 3/2nds time, described integrated circuit (5) outfan output high level.
4. a kind of automobile automatic dimmer according to claim 1, it is characterised in that: described relay (2) and a diodes in parallel.
5. a kind of automobile automatic dimmer according to claim 1, it is characterised in that: described light-sensitive element (4) can be photoconductive resistance, light sensitive diode and phototriode.
6. a kind of automobile automatic dimmer according to claim 5, it is characterised in that: described light-sensitive element (4) is photoconductive resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819503.1A CN105774632A (en) | 2014-12-25 | 2014-12-25 | Automatic dimmer for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819503.1A CN105774632A (en) | 2014-12-25 | 2014-12-25 | Automatic dimmer for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105774632A true CN105774632A (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819503.1A Pending CN105774632A (en) | 2014-12-25 | 2014-12-25 | Automatic dimmer for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105774632A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903534A (en) * | 2019-03-04 | 2019-06-18 | 中科元景智能(深圳)有限公司 | A kind of detection device and method of photoelectricity smoke detector |
-
2014
- 2014-12-25 CN CN201410819503.1A patent/CN105774632A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903534A (en) * | 2019-03-04 | 2019-06-18 | 中科元景智能(深圳)有限公司 | A kind of detection device and method of photoelectricity smoke detector |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160720 |
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| WD01 | Invention patent application deemed withdrawn after publication |