CN204127827U - A kind of LED car wainscot illuminating lamp - Google Patents
A kind of LED car wainscot illuminating lamp Download PDFInfo
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- CN204127827U CN204127827U CN201420514863.6U CN201420514863U CN204127827U CN 204127827 U CN204127827 U CN 204127827U CN 201420514863 U CN201420514863 U CN 201420514863U CN 204127827 U CN204127827 U CN 204127827U
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- drive circuit
- circuit board
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- groove
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Abstract
The utility model discloses a kind of LED car wainscot illuminating lamp, comprise housing, lid, lid is fixed on housing, housing side is connected with cable, one end of cable connects vehicle power, housing bottom outer wall is provided with groove, light guide plate is provided with in groove, described groove one sidewall is provided with drive circuit board, drive circuit board is electrically connected with the other end of cable, drive circuit board is provided with the LED light source be connected electrically, and the groove side of described housing is provided with inching switch, and inching switch is electrically connected with drive circuit board.The utility model adopts LED light source technology to obtain better lighting environment condition, has that luminous efficiency is high, uniformity good compared with traditional tengsten lamp, Halogen lamp LED etc., and brightness continuously adjustabe, power consumption are low, long service life, caloric value is low, environmental and durable, and glow color can be selected as requested.The utility model adopts LED lamp bead modularized design, easy to maintenance, cost efficiency.
Description
Technical field
The utility model relates to the technical field such as electronic technology and Application Optics, particularly a kind of LED car wainscot illuminating lamp.
Background technology
Room light is to provide lighting to driver and conductor, improves working environment.In the factors of lighting, luminous efficiency, uniformity, whether brightness is adjustable is very direct factor.
Light emitting diode (LED) light source technology is ripe, is widely used, and has defined good Industry Foundation and application foundation in China, is just entering the developing period that scale promotes.LED lamp has a lot of application in the light fixtures such as automobile intraoral illumination lamp.High-brightness LED is applied to automobile instruction, illuminating lamp, and compared with conventional lamp, LED lamp has a series of technical advantage: luminous efficiency is high, uniformity good, power consumption is low, long service life, low in calories, environmental protection recyclable recycling, can stand stronger shock and vibration.
At present, the room light lamp major part that domestic vehicles is equipped with is still conventional light source, and light fixture is of all kinds, and model differs.Be unfavorable for the generalization of product, standardization, interchangeability is low, and maintenance cost is higher.Therefore, development of new LED car wainscot illuminating lamp is necessary.
Summary of the invention
The purpose of this utility model to provide that a kind of luminous efficiency is high, uniformity good, brightness continuously adjustabe, and long service life is low in calories, energy-conservation, environmental and durable, can stand the New LED car wainscot illuminating lamp of stronger shock and vibration.
For achieving the above object, the utility model is implemented according to following technical scheme:
A kind of LED car wainscot illuminating lamp, comprise housing, lid, lid is fixed on housing, and housing side is connected with cable, one end of cable connects vehicle power, housing bottom outer wall is provided with groove, is provided with light guide plate in groove, and described groove one sidewall is provided with drive circuit board, drive circuit board is electrically connected with the other end of cable, drive circuit board is provided with the LED light source be connected electrically, and the groove side of described housing is provided with inching switch, and inching switch is electrically connected with drive circuit board.
As further preferred version of the present utility model, described LED light source adopts the LED lamp bead of 24 3535 SMD as light source, and LED lamp bead is divided into 4 groups to be connected in parallel on drive circuit board, and often group arranges 6 series connection.
As further preferred version of the present utility model, described drive circuit board is provided with No. 4 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch; Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side.The second three terminal regulator LM317 in drive circuit has constant current output characteristic, and output current Io2 size is realized by the second resistance Radj2 between LM317 output and adjustable side, and Io2=1.25V/Radj2 constant current drives 6 LEDs light pearls; The first three terminal regulator LM317 in regulating circuit has output voltage control characteristic, its output voltage Uo1 is: Uo1=1.25 × (1+ Radj1/Ro1), wherein Radj1 is the slip variable resistance between the first three terminal regulator LM317 and earth terminal, Ro1 is the first resistance between output and adjustable side, and Radj1 is that variable resistor and constant resistance are composed in series to realize continuously adjustabe function.
As further preferred version of the present utility model, reverse-connection preventing circuit is provided with between described regulating circuit and vehicle power, reverse-connection preventing circuit is made up of bridge rectifier and filter capacitor, the input of bridge rectifier connects the input of the first three terminal regulator LM317 after connecting vehicle power, output parallel filtering electric capacity, one end ground connection of filter capacitor.
As further preferred version of the present utility model, the electric current of described rectification circuit is not less than 1A, and the withstand voltage of filter capacitor is 50V.
Compared with prior art, the beneficial effects of the utility model:
The utility model adopts LED light source technology to obtain better lighting environment condition, has that luminous efficiency is high, uniformity good compared with traditional tengsten lamp, Halogen lamp LED etc., and brightness continuously adjustabe, power consumption are low, long service life, caloric value is low, environmental and durable, and glow color can be selected as requested.
The utility model adopts multiple constant current type of drive in car wainscot illuminating lamp, brightness can regulate continuously, ensure when solving different batches LED lamp bead light efficiency and light guide plate transmitance disunity the problem that illuminating lamp illumination is stable to improve the visual comfort of different user of service.
The utility model devises reverse-connection preventing circuit in the driving circuit, avoids the generation of false circuit connection, improves security, reliability.
The utility model adopts LED lamp bead modularized design, easy to maintenance, cost efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described, is used for explaining the utility model in the illustrative examples of this utility model and explanation, but not as to restriction of the present utility model.
A kind of LED car wainscot illuminating lamp as shown in Figure 1, comprise housing 1, lid 2, lid 2 is fixed on housing 1, housing 1 side is connected with cable 7, one end of cable 7 connects vehicle power, housing 1 bottom outer wall is provided with groove 3, light guide plate 8 is provided with in groove 3, groove 3 one sidewall is provided with drive circuit board 4, drive circuit board 4 is electrically connected with the other end of cable 7, drive circuit board 4 is provided with the LED light source 5 be connected electrically, and the groove side of housing 1 is provided with inching switch 6, and inching switch 6 is electrically connected with drive circuit board 4.The basic profile of car light is designed to cylindrical, and diameter is 120mm, and high (containing switch) 50mm, LED light source 5 adopts the LED lamp bead of 24 3535 SMD as light source, and LED lamp bead is divided into 4 groups to be connected in parallel on drive circuit board 4, and often group arranges 6 series connection.
With reference to Fig. 2, drive circuit board 4 is provided with No. 4 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch 6; Regulating circuit utilizes the output voltage control characteristic of three terminal regulator LM317, and its output voltage Uo1 is: Uo1=1.25 × (1+Radj1/Ro1), and wherein Radj1 is resistance between LM317 and earth terminal, and Ro1 is resistance between output and adjustable side.Radj1 is designed to variable resistor and constant resistance is composed in series, and realizes the continuous regulatory function of brightness.Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side, drive circuit utilizes the constant current output characteristic of three terminal regulator LM317, output current Io2 size is realized by resistance Radj2 between LM317 output and adjustable side, Io2=1.25V/Radj2.
As shown in Figure 2; because different batches LED light effect and protective cover transmitance can not ensure the factors such as completely the same; for ensureing that illuminating lamp illumination is stablized; Front-end Design is driven to have regulating circuit and add a reverse-connection preventing circuit; reverse-connection preventing circuit is provided with between regulating circuit and vehicle power; reverse-connection preventing circuit is made up of bridge rectifier and filter capacitor; the input of bridge rectifier connects the input of the first three terminal regulator LM317 after connecting vehicle power, output parallel filtering electric capacity, one end ground connection of filter capacitor.Reverse-connection preventing circuit utilizes bridge rectifier electric elements and filter capacitor to realize.The rectifier cell that is not less than 1A and withstand voltage is selected to be the filter capacitor of 50V according to circuit characteristic.
Main performance index of the present utility model is as follows:
Operating voltage: DC26 ± 4V
Power :≤6W
Stream time: 6h
Brightness regulation: continuously adjustabe
Operating temperature :-40 DEG C ~+46 DEG C
Storage temperature :-43 DEG C ~+70 DEG C.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion made according to the technical solution of the utility model, all falls within protection domain of the present utility model.
Claims (5)
1. a LED car wainscot illuminating lamp, comprise housing (1), lid (2), lid (2) is fixed on housing (1), housing (1) side is connected with cable (7), one end of cable (7) connects vehicle power, it is characterized in that: housing (1) bottom outer wall is provided with groove (3), light guide plate (8) is provided with in groove (3), described groove (3) sidewall is provided with drive circuit board (4), drive circuit board (4) is electrically connected with the other end of cable (7), drive circuit board (4) is provided with the LED light source (5) be connected electrically, the groove side of described housing (1) is provided with inching switch (6), inching switch (6) is electrically connected with drive circuit board (4).
2. LED car wainscot illuminating lamp according to claim 1, is characterized in that: described LED light source (5) adopts the LED lamp bead of 24 3535 SMD as light source, and LED lamp bead is divided into 4 groups to be connected in parallel on drive circuit board (4), and often group arranges 6 series connection.
3. LED car wainscot illuminating lamp according to claim 1, it is characterized in that: described drive circuit board (4) is provided with No. 4 drive circuits and 1 road regulating circuit, regulating circuit is made up of the first three terminal regulator LM317 and the first resistance, the input of the first three terminal regulator LM317 connects vehicle power, is parallel with the first resistance between output and adjustable side, adjustable side is connected with ground connection after slip variable resistance, and the adjustable side of slip variable resistance is fixedly connected with inching switch (6); Drive circuit is made up of the second three terminal regulator LM317 and the second resistance, the input of the second three terminal regulator LM317 is connected with the input of the first three terminal regulator LM317, output connect connect 6 LEDs light pearls, be parallel with the second resistance between output and adjustable side.
4. LED car wainscot illuminating lamp according to claim 3, it is characterized in that: between described regulating circuit and vehicle power, be provided with reverse-connection preventing circuit, reverse-connection preventing circuit is made up of bridge rectifier and filter capacitor, the input of bridge rectifier connects the input of the first three terminal regulator LM317 after connecting vehicle power, output parallel filtering electric capacity, one end ground connection of filter capacitor.
5. LED car wainscot illuminating lamp according to claim 4, is characterized in that: the electric current of described rectification circuit is not less than 1A, and the withstand voltage of filter capacitor is 50V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514863.6U CN204127827U (en) | 2014-09-10 | 2014-09-10 | A kind of LED car wainscot illuminating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420514863.6U CN204127827U (en) | 2014-09-10 | 2014-09-10 | A kind of LED car wainscot illuminating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127827U true CN204127827U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420514863.6U Expired - Fee Related CN204127827U (en) | 2014-09-10 | 2014-09-10 | A kind of LED car wainscot illuminating lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127827U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728640A (en) * | 2015-03-23 | 2015-06-24 | 安徽兆利光电科技有限公司 | LED lamp powered through direct current |
| CN106482061A (en) * | 2015-08-27 | 2017-03-08 | 福特全球技术公司 | Outside vehicle illuminator |
-
2014
- 2014-09-10 CN CN201420514863.6U patent/CN204127827U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728640A (en) * | 2015-03-23 | 2015-06-24 | 安徽兆利光电科技有限公司 | LED lamp powered through direct current |
| CN106482061A (en) * | 2015-08-27 | 2017-03-08 | 福特全球技术公司 | Outside vehicle illuminator |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20200910 |