CN202140941U

CN202140941U - Light-emitting diode (LED) automotive lamp with adjustable color temperature

Info

Publication number: CN202140941U
Application number: CN201120198359U
Authority: CN
Inventors: 黄洪武
Original assignee: WUHU ANRUI PHOTOELECTRIC CO Ltd
Current assignee: WUHU ANRUI PHOTOELECTRIC CO Ltd
Priority date: 2011-06-14
Filing date: 2011-06-14
Publication date: 2012-02-08
Anticipated expiration: 2021-06-14

Abstract

A light-emitting diode (LED) automotive lamp with adjustable color temperature comprises a lamp cover and a lamp seat. An LED lamp group capable of changing the color temperature of lamplight is fixed between the lamp cover and the lamp seat, the LED lamp group is formed by packaging at least three LED projection lamps giving out cold tone light or/and giving out warm tone light. A control circuit capable of controlling the LED lamp group to give out the cold tone light or/and give out the warm tone light is connected with the LED lamp group. A chip giving out the cold tone light or/and giving out the warm tone light is packaged to be a lighting chip in a straight line alternate arrangement mode at intervals, the lighting chip is applicable to the LED projection lamps and controls the LED projection lamps to give out cold tone white light or warm tone white light through the control circuit, color temperature of the LED lamp group composed of the LED projection lamps is changed, automobile light under different color temperatures can be selected depending on the weather, drivers can have good range of visibility, and traveling safety can be guaranteed.

Description

The LED auto lamp that a kind of colour temperature is adjustable

Technical field

The utility model relates to car headlamp, the LED auto lamp that particularly a kind of colour temperature is adjustable.

Background technology

The conventional at present led light source that is used for car headlamp; Be the cool tone white light of uncontrollable 6000K colour temperature; The problem that the LED headlamp of this unadjustable colour temperature exists has: 1. colour temperature is the sensations of eyes to illuminator or white reflection body; This is physics, the body a kind of sensation with psychologic comprehensive complicated factor of science, thisly feels to vary with each individual, and presumable people adapts to the cool tone white light; Some people then adapts to the warm tones white light, so the car headlamp designs fix is used the non-preferred plan of a kind of cool tone white light; 2. the outside climatic factor of running car influences the penetration power of car light light, descends like the penetration capacity of visible light when avenging sky, rainy day and greasy weather, and driver's sighting distance is limited, and traffic safety and driving safety have been caused very big threat.Reason is that visible light is when propagating in snowflake, raindrop and droplet, because effects such as scattering and absorption make its observability receive very big influence; And in misty rain and snowy environment; Research concentrates in the selection to warm colour light modulation and cool tone white light mostly, it is conventionally believed that the light modulation of selection warm colour is better, because under same brightness; Warm colour tuningout gold-tinted is compared with white light, and the dazzle influence that warm colour tuningout gold-tinted brings is lower.

The utility model content

For making the driver can select the led light source of different-colour according to oneself hobby or because of Changes in weather, the utility model is intended to propose the adjustable LED auto lamp of a kind of colour temperature.

For reaching above-mentioned purpose; The adjustable LED auto lamp of a kind of colour temperature that the utility model proposes; Comprise lampshade, lamp socket; It is characterized in that: between lampshade and lamp socket, be fixed with the LED lamp group that can change the light colour temperature, LED lamp group by at least three the tone light that feels cold or/and send out the LED projecting lamp encapsulation of warm colour light modulation and form; One can control LED lamp group feels cold tone light or/and send out the control circuit of warm colour light modulation and be connected with LED lamp group.

In the above-mentioned LED projecting lamp, luminescence chip is fixed on the heat dissipation metal substrate, and the heat-radiating substrate bottom is connected with radiator, and the luminescence chip top is provided with a reflective mirror, and reflective mirror the place ahead is provided with optical lens.

Above-mentioned luminescence chip is integrated with the white chip of the tone that feels cold and sends out warm-toned orange optical chip.

The white chip of integrated encapsulation and orange optical chip are alternately arranged with linear interval in the luminescence chip in the above-mentioned LED projecting lamp.

Above-mentioned luminescence chip package dimension amounts to 1 mm * 5mm, and white chip and orange optical chip area are all less than 1 mm * 1mm; Luminescence chip adopts the encapsulation of high brightness multicore sheet, and the package dimension of multicore sheet amounts to 1 * 5mm, and size is suitable with the existing extensive car headlamp halogen light source filament that uses, and has guaranteed that final luminous intensity distribution can meet the lighting regulations requirement well.

Above-mentioned LED projecting lamp is connected with control circuit, feels cold tone light or/and the warm colour light modulation through control circuit control LED projecting lamp.

The beneficial effect of the utility model really is: the chip of will feel cold tone light and warm colour light modulation becomes luminescence chip to replace array packages with linear interval; This luminescence chip is applied in the LED projecting lamp; Send through control circuit control LED projecting lamp and to feel cold tone light, change the colour temperature of the LED lamp group of forming by the LED projecting lamp, can select the car bulb of different-colour according to the different weather environment or/and send out the warm colour light modulation; Make the driver have good sighting distance, guarantee driving safety.

Description of drawings

Fig. 1 is the structure cutaway view of the utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the luminous circuit structure block diagram of the utility model control circuit control luminescence chip.

Accompanying drawing is designated among the figure: 10. lamp socket; 20. lampshade; 30.LED lamp group; 40.LED projecting lamp; 41. luminescence chip; 411. white chip; 412. orange optical chip; 42. heat-radiating substrate; 43. radiator; 44. reflective mirror; 45. lens; 50. control circuit.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is further specified.

As Fig. 1The LED auto lamp that shown a kind of colour temperature is adjustable, comprise lampshade 20, lamp socket 10 and be fixed on lampshade 20 and lamp socket 10 between can change the LED lamp group 30 of light colour temperature, LED lamp group 30 is formed by 40 encapsulation of LED projecting lamp; As Fig. 2Shown in, in the LED projecting lamp 40, luminescence chip 41 is fixed on the heat dissipation metal substrate 42, and heat-radiating substrate 42 bottoms are connected with radiator 43, and luminescence chip 41 tops are provided with a reflective mirror 44, and reflective mirror 44 the place aheads are provided with optical lens 45; The white chip 411 that luminescence chip 41 is integrated with the tone that feels cold with send out warm-toned orange optical chip 412, white chip 411 and orange optical chip 412 areas are all less than 1 mm * 1mm; As Fig. 3Shown in, LED projecting lamp 40 In luminescence chip 41 in the white chip 411 of integrated encapsulation alternately arrange 411 3 of white chip, 412 two of orange optical chips with linear interval with orange optical chip 412; Luminescence chip 41 package dimensions amount to 1 mm * 5mm, and this package dimension is suitable with the existing extensive car headlamp halogen light source filament that uses, and has guaranteed that final luminous intensity distribution can meet the lighting regulations requirement well; Luminescence chip 41 in the LED projecting lamp 40 is connected with control circuit 50; Send the tone light that feels cold or/and a warm colour light modulation through the luminescence chip 41 in the control circuit 50 switching controls LED projecting lamps 40; Finally make LED lamp group 30 send the tone white light that feels cold, the orange light of warm tones or the color matching of the mixed light of white light and orange light, reach the purpose that changes the car light colour temperature.

As Fig. 1With Fig. 4Shown in, the utility model can adopt two kinds of control models of regulating different light colour temperatures: Pattern one: control circuit 50 can be controlled the white chip 411 of the tone light that feels cold and send white light, and orange optical chip 412 is not luminous, and LED projecting lamp 40 is emitted white light, and makes car light send the white light of cool tone. Pattern two: or the whole luminescence chip of control circuit 50 control 41 is luminous, even the white chip 411 in the LED projecting lamp 40 is sent the white light that white light and orange optical chip 412 are sent out light orange and mixed mutually, even car light sends warm-toned white light.

Above embodiment only supplies to explain the usefulness of the utility model, but not to the restriction of the utility model, those skilled in the art under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or variation.Therefore, all technical schemes that are equal to also should belong to the category of the utility model, are limited each claim.

Claims

1. LED auto lamp that colour temperature is adjustable; Comprise lampshade, lamp socket; It is characterized in that: between lampshade and lamp socket, be fixed with the LED lamp group that can change the light colour temperature, LED lamp group by at least three the tone light that feels cold or/and send out the LED projecting lamp encapsulation of warm colour light modulation and form; One can control LED lamp group feels cold tone light or/and send out the control circuit of warm colour light modulation and be connected with LED lamp group.

2. the LED auto lamp that a kind of colour temperature as claimed in claim 1 is adjustable; It is characterized in that: in the described LED projecting lamp, luminescence chip is fixed on the heat dissipation metal substrate, and the heat-radiating substrate bottom is connected with radiator; The luminescence chip top is provided with a reflective mirror, and reflective mirror the place ahead is provided with optical lens.

3. the LED auto lamp that a kind of colour temperature as claimed in claim 2 is adjustable is characterized in that: described luminescence chip is integrated with the white chip of the tone that feels cold and sends out warm-toned orange optical chip.

4. like claim 1, the adjustable LED auto lamp of 2 or 3 described a kind of colour temperatures, it is characterized in that: the white chip of integrated encapsulation and orange optical chip are alternately arranged with linear interval in the luminescence chip in the described LED projecting lamp.

5. the LED auto lamp that a kind of colour temperature as claimed in claim 4 is adjustable is characterized in that: described luminescence chip package dimension amounts to 1 mm * 5mm, and white chip and orange optical chip area are all less than 1 mm * 1mm.

6. the LED auto lamp that a kind of colour temperature as claimed in claim 4 is adjustable is characterized in that: described LED projecting lamp is connected with control circuit.