CN202791735U - Brightness adjustable interior LED (Light Emitting Diode) lamp - Google Patents
Brightness adjustable interior LED (Light Emitting Diode) lamp Download PDFInfo
- Publication number
- CN202791735U CN202791735U CN2012204751595U CN201220475159U CN202791735U CN 202791735 U CN202791735 U CN 202791735U CN 2012204751595 U CN2012204751595 U CN 2012204751595U CN 201220475159 U CN201220475159 U CN 201220475159U CN 202791735 U CN202791735 U CN 202791735U
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- potentiometer
- emitting diode
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- light source
- led
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Abstract
The utility model discloses a brightness adjustable interior LED (Light Emitting Diode) lamp which not only solves the problems that conventional interior lamp is high in energy consumption, large in heating amount and short in service life and the like, but also adjusts the brightness of the interior lamp by a potentiometer according to demands, so that different demands on brightness of the interior lamp can be met. The brightness adjustable interior LED lamp is simple, safe and reliable in circuit and is very convenient to use. The brightness adjustable interior LED lamp comprises the potentiometer, an LED light source part and a circuit board. The potentiometer is connected with a variable resistor. One end of the variable resistor is connected with the anode of a direct current power supply while the other end of the variable resistor is connected with the anode of the LED light source. The cathode of the LED light source part is connected with the cathode of the direct current power supply, and the LED light source part and the potentiometer lead are welded on the circuit board.
Description
Technical field
The utility model relates to a kind of illuminating lamp, relates in particular to a kind of for the LED illuminating lamp in the Automobile.
Background technology
The body light of automobile generally adopts traditional incandescent lamp such as the light emitting source of the illuminating lamps such as reading lamp, ceiling light, in use energy consumption is high, the life-span is short for this lamp, can produce a large amount of heats if bulb is luminous when using for a long time summer, cause vehicle interior temperature to raise.The gauge tap of lamp also only has bright or the two states that do not work, can not satisfy people under different environments for use to car in the different demands of light.Open day be that on 08 17th, 2011, publication number are the patent documentation of CN 201932075U, the technical scheme that name is called a kind of lighting device used in automobile is disclosed, it has increased instrument desk lamp, rear taillight, front side gate light and rear side gate light, solved lamplight setting deficiency in the Automobile, there is not the room light Dead Core Problems in the light position design comprehensively.But this technical scheme is helpless to solve such as reading lamp, ceiling light, baggage compartment lamp and newly-increased body light and all has the technical problems such as energy consumption is high, caloric value is large, the life-span is short, brightness can not be regulated.
Summary of the invention
The utility model mainly is to solve the existing body light energy consumption height of prior art, caloric value is large, the life-span is short and without technical problems such as brightness regulation, provides a kind of intensity adjustable car interior LED lamp.
The utility model is mainly solved by following technical proposals for the prior art problem, LED lamp in a kind of intensity adjustable car, comprise potentiometer, led light source section and circuit board, potentiometer connects into variable resistance, one end of variable resistance connects the positive pole of dc power anode, other end connection led light source section, the negative pole of led light source section connects dc power cathode, and led light source section and potentiometer wire bonds are on circuit board., use the incandescent lamp in the illuminating lamps such as the interior reading lamp of led light source (lamp) replacement car, ceiling light here, give full play to the superiority that the brightness of LED lamp is high, the life-span is long, power consumption is little, caloric value is few.Because the little use potentiometer of LED lamp energy consumption just can be regulated its brightness, circuit structure is simple simultaneously.Therefore, the technical program had both solved the problems such as traditional body light energy consumption is high, caloric value is large, the life-span is short, also can use the knob on the potentiometer to regulate easily to the brightness of lamp as required.Circuit board is the PCB(printed circuit board (PCB)), the PCB shape is installed also very convenient according to the spatial design in the body light housing.
As preferably, led light source section comprises the Light-Emitting Diode series circuit of two parallel connections, each Light-Emitting Diode series circuit is made of several light emitting diode series connection, the positive pole of each Light-Emitting Diode series circuit connects variable resistance, and the negative pole of each Light-Emitting Diode series circuit is connected to dc power cathode by current-limiting resistance.Withstand voltage and required illumination according to Light-Emitting Diode, led light source is partly become two arbitrary sources, and the withstand voltage of Light-Emitting Diode and LED lamp illumination demand had both been satisfied in these two arbitrary source parallel runnings, also increased the functional reliability of LED lamp, after the living fault that riches all the way still can work in another road.
As preferably, also be connected with the protection diode in led light source section, the negative pole of protection diode is connected to the positive pole of led light source section, and the positive pole of protection diode connects dc power cathode.At transition twin zener dioder of the positive and negative electrode point of incoming cables of led light source section Opposite direction connection, be used for absorbing power supply comes moment sudden change high voltage or surge current, with the not breakdown damage of protection LED; Work as simultaneously the dc source both positive and negative polarity and connect inverse time, current direct is connected the overprotection diode, and LED is not reversed puncture with protection.
As preferably, each Light-Emitting Diode series circuit is made of 4 5050 paster Light-Emitting Diodes series connection, forward voltage drop after the series connection is identical with the dc source voltage that connects, the positive pole of first 5050 paster Light-Emitting Diode connects variable resistance (potentiometer), and the negative pole of the 4th 5050 paster Light-Emitting Diodes connects dc power cathode by current-limiting resistance.So-called light emitting diode series circuit is that several different light emitting diodes just are connected with negative pole, one by one series connection, the positive pole of first light emitting diode is the positive terminal of light emitting diode series circuit, and the negative pole of the light emitting diode at end is the negative pole end of light emitting diode series circuit.Each Light-Emitting Diode series circuit is made of the white light patch light-emitting diode series connection of 4 50mm*50mm, power 0.2W, forward voltage drop 3.0-3.2V in this programme, the positive pole of series circuit is connected to the positive pole of 12V dc source by potentiometer (variable resistance), and the negative pole of series circuit is connected to the negative pole of 12V dc source by a current-limiting resistance.The power of traditional body light bubble is 5W, and the technical program adopts 8 5050 paster LEDs to do light source, and power only is about 1.5W, but brightness ratio 5W incandescent lamp is high.
As preferably, potentiometer is the potentiometer with switch, and switch is connected between variable resistance and the dc power anode.Use switching and the brightness regulation of controlling led light source with the potentiometer of switch.When turning clockwise potentiometer knob, switch connection, this moment, the resistance of potentiometer was maximum, and the brightness of led light source is at minimum state, the potentiometer that turns clockwise again, the brightness of led light source is by secretly brightening gradually, until the brightest; Be rotated counterclockwise potentiometer knob, potentiometer resistance changes from small to big, and led light source is by bright dimmed, until the switch deenergization.Reach in the car the bright dark different demands of light by above operation.
The beneficial effect that the utility model brings is, the problems such as traditional body light energy consumption is high, caloric value is large, the life-span is short had both been solved, also can use potentiometer to regulate to the brightness of body light as required, satisfied the dark different demands of body light light, circuit is simple and safe reliable, very easy to use, can be widely used on the illuminating lamps such as reading lamp, ceiling light, baggage compartment lamp in the car.
Description of drawings
Fig. 1 is a kind of circuit theory diagrams of the present utility model.
Among the figure: the 1st, potentiometer, the 2nd, the potentiometer of belt switch, the 3rd, led light source section, K is potentiometer switch, and D1-D8 is Light-Emitting Diode, and R1-R2 is current-limiting resistance, and D9 is the protection diode.
The specific embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is further described in detail.
Embodiment: as shown in Figure 1, the utility model is LED lamp in a kind of intensity adjustable car.Potentiometer 1 connects into variable resistor, and connecting with potentiometer switch K afterwards becomes the potentiometer of belt switch 2, and when potentiometer switch K and variable-resistance connected mode connected K switch for the potentiometer knob that turns clockwise, the resistance of variable resistance was maximum;
Light-Emitting Diode D1 to D4 is connected in series and is connected in series current-limiting resistance R2 again and forms the first Light-Emitting Diode series circuit, Light-Emitting Diode D5 to D8 is connected in series and is connected in series current-limiting resistance R1 again and forms the second Light-Emitting Diode series circuit, and the first Light-Emitting Diode series circuit and the second Light-Emitting Diode series circuit be in parallel to consist of led light source section 3;
Protection diode D9 annexation is: negative pole is connected to the b line of the potentiometer 2 of belt switch, and positive pole is connected to dc power cathode;
The a line of the potentiometer 2 of belt switch, b line and light emitting diode D1 to D8, direct current supply line and protection diode D9 are welded on the PCB.
Light-Emitting Diode D1 to D8 adopts 5050 chip type white light LED, and the potentiometer 2 of belt switch is 1K/1W, and current-limiting resistance R1 and R2 are 1/0.5W, and protection diode D9 adopts the P6KE15CA Transient Suppression Diode.
When needing to open the LED illumination, the potentiometer knob that turns clockwise, K switch is connected, and the brightness of led light source continues the potentiometer knob that turns clockwise again at minimum state, and the brightness of led light source is by secretly brightening gradually, until the brightest; Be rotated counterclockwise potentiometer knob, led light source is by bright dimmed, until the K switch deenergization.
So the utlity model has following characteristics: both solved the problems such as traditional body light energy consumption is high, caloric value is large, the life-span is short, also can use potentiometer to regulate to the brightness of body light as required, satisfied the dark different demands of body light light, circuit safety is reliable, and is very easy to use.
Claims (5)
1. LED lamp in the intensity adjustable car, it is characterized in that: comprise potentiometer, led light source section and circuit board, described potentiometer connects into variable resistance, one end of described variable resistance connects dc power anode, the other end connects the positive pole of described led light source section, the negative pole of described led light source section connects dc power cathode, and led light source section and potentiometer wire bonds are on circuit board.
2. LED lamp in described a kind of intensity adjustable car according to claim 1, it is characterized in that: described led light source section comprises the Light-Emitting Diode series circuit of two parallel connections, each Light-Emitting Diode series circuit is made of several light emitting diode series connection, the positive pole of described each Light-Emitting Diode series circuit connects described variable resistance, and the negative pole of each Light-Emitting Diode series circuit is connected to dc power cathode by current-limiting resistance.
3. LED lamp in described a kind of intensity adjustable car according to claim 1 and 2; it is characterized in that: also be connected with the protection diode in described led light source section; the negative pole of described protection diode is connected to the positive pole of led light source section, and the positive pole of protection diode connects dc power cathode.
4. LED lamp in described a kind of intensity adjustable car according to claim 2, it is characterized in that: described each Light-Emitting Diode series circuit is made of 4 5050 paster Light-Emitting Diodes series connection, forward voltage drop after the series connection is identical with the dc source voltage that connects, the positive pole of first 5050 paster Light-Emitting Diode connects described variable resistance, and the negative pole of the 4th 5050 paster Light-Emitting Diodes connects dc power cathode by current-limiting resistance.
5. LED lamp in described a kind of intensity adjustable car according to claim 1, it is characterized in that: described potentiometer is the potentiometer with switch, and described switch is connected between variable resistance and the dc power anode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204751595U CN202791735U (en) | 2012-09-17 | 2012-09-17 | Brightness adjustable interior LED (Light Emitting Diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204751595U CN202791735U (en) | 2012-09-17 | 2012-09-17 | Brightness adjustable interior LED (Light Emitting Diode) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202791735U true CN202791735U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204751595U Expired - Fee Related CN202791735U (en) | 2012-09-17 | 2012-09-17 | Brightness adjustable interior LED (Light Emitting Diode) lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202791735U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042433A (en) * | 2015-08-28 | 2015-11-11 | 浪潮软件集团有限公司 | Light filling lamp device suitable for portable terminal area regulation knob switch |
-
2012
- 2012-09-17 CN CN2012204751595U patent/CN202791735U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042433A (en) * | 2015-08-28 | 2015-11-11 | 浪潮软件集团有限公司 | Light filling lamp device suitable for portable terminal area regulation knob switch |
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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: 20130313 Termination date: 20200917 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |