CN204227263U - A car LED headlight - Google Patents

Abstract

The utility model discloses an automobile LED headlamp, which comprises a lampshade, a lamp cap, a turning plate shading device and a radiator, and also comprises a first LED luminous chip and a second LED luminous chip which are respectively arranged on the upper surface and the side surface of the radiator; the lamp holder is provided with a main lens and a widened mirror, the main lens and the widened mirror are respectively embedded in a main mirror mounting seat and a widened mirror mounting seat, and the main mirror mounting seat and the widened mirror mounting seat are respectively fixed on the fixed plate from top to bottom; the radiator is provided with first heat pipe, second heat pipe, fin and heat dissipation fan, and first heat pipe and second heat pipe run through the radiator respectively, and the heat dissipation fan is fixed in below the fin. The utility model discloses car LED head-light can reach the requirement of high-power illuminance and can solve the heat dissipation problem again, widens the width scope of LED head-light simultaneously, through external inductor or manual switching, can realize intelligence or multi-functionalization for a car LED head-light reliability promotes greatly, and realizes intelligent illumination.

Description

A car LED headlight

technical field

The utility model belongs to the field of vehicle lamps, in particular to an automobile LED headlamp.

Background technique

At present, the application technology of LED is becoming more and more mature, especially in the field of lighting. Because of its energy-saving characteristics, it gradually replaces the traditional xenon lamp. A light-switching light-shielding flap mechanism and a device for driving the flap mechanism. The shading flap mechanism is set between the light source of the car light and the optical lens. The device for driving the shading flap mechanism is composed of an electromagnetic coil. The driving force generated by the electromagnetic coil makes the shading flap rotate around the shaft so that the light passes through or is blocked by the shading flap. Block the formation of far and near light irradiation. Because the single power of the current LED headlights is not large enough, and a single increase in power will lead to heat accumulation, which will eventually reduce the service life of the LED headlights. The size of the optical lens limits the width of the illuminated light pattern. The cost of lights has risen, the low and high beams can only realize basic driving lighting, and safety functions such as cornering lights are realized through other auxiliary mechanisms, resulting in low reliability.

At present, it is very difficult to develop LED headlights that can not only achieve high power illuminance, but also solve the problem of heat dissipation. At the same time, it is very difficult to expand the width range of LED headlights. At present, few research institutions have developed products that can solve these problems at the same time.

Contents of the invention

The purpose of this utility model is: aim at the deficiencies of the prior art, and provide a kind of LED headlight of automobile, can not only reach the LED headlight of power illuminance, but also can solve the problem of heat dissipation, widen the width range of LED headlight at the same time The realization of intelligence or multi-function greatly improves the reliability of automotive LED headlights and realizes intelligent lighting.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

An automotive LED headlamp, comprising: a lampshade, a lamp cap, a flap shading device, and a radiator, and also includes a No. 1 LED light-emitting chip and a No. 2 LED light-emitting chip, and the No. 1 LED light-emitting chip and the No. The chips are respectively arranged on the top and the side of the heat sink; the lamp head is provided with a main lens and a widening mirror, and the main lens and the widening mirror are respectively embedded in the main mirror mounting seat and the widening mirror mounting seat, and the main lens The mirror mounting base and the widening mirror mounting base are respectively fixed on the fixing plate; the radiator is provided with a first heat conducting pipe, a second heat conducting pipe, a cooling fin and a cooling fan, and the first heat conducting pipe and the second heat conducting pipe The tubes respectively pass through the radiator, and the cooling fan is fixed under the cooling fins.

The main lens is a hemispherical circular lens, and the widening mirror is a curved lens.

The automobile LED headlight also includes a reflective bowl and a protective cover. The inner wall of the reflective bowl is provided with multiple sections of free-curve reflective surfaces. The reflective bowl is arranged above the LED No. The upper surface of the radiator; the protective cover is fixed on the radiator, and the reflective bowl is arranged between the protective cover and the No. 1 LED light-emitting chip.

Both the first heat pipe and the second heat pipe are copper pipes.

The heat sink is made of aluminum.

The luminous power of the No. 1 LED light-emitting chip is 15W.

The luminous power of the No. 2 LED light-emitting chip is 12W.

Compared with the prior art, a kind of automobile LED headlight of the utility model can not only meet the requirement of high-power illuminance, but also solve the problem of heat dissipation, and at the same time widen the width range of the LED headlight. Switching can realize intelligence or multi-function, which greatly improves the reliability of an automobile LED headlight and realizes intelligent lighting.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present utility model.

Fig. 2 is a schematic diagram of the structure of the lamp cap of the present invention.

Fig. 3 is a structural schematic diagram of the radiator of the present invention.

Fig. 4 is another schematic diagram of the radiator of the present invention.

Including in Fig. 1 to Fig. 4: lampshade 1;

Lamp holder 2; main lens 21; main mirror mount 22; widening mirror 23; widening mirror mount 24; fixed plate 25;

Turn plate shading device 3; LED No. 2 light-emitting chip 4;

Radiator 5; first heat pipe 51; second heat pipe 52; heat sink 53; cooling fan 54;

LED No. 1 light-emitting chip 6; reflective bowl 7; protective cover 8.

detailed description

The utility model will be further described in detail below in conjunction with the specific implementation and the accompanying drawings, but the implementation of the utility model is not limited thereto.

Referring to Fig. 1 and Fig. 2, an automobile LED headlight includes: a lampshade 1, a lamp cap 2, a flap shading device 3 and a radiator 5, and the flap shading device 3 realizes near/far of the headlight through the action of the flap light switch. A kind of automobile LED headlamp also comprises LED No. 1 light-emitting chip 6 and LED No. 2 light-emitting chip 4, and LED No. 1 light-emitting chip 6 and LED No. 2 light-emitting chip 4 are arranged on the top and side of radiator 5 respectively; There is a main lens 21 and a widening mirror 23, the main lens 21 and the widening mirror 23 are respectively embedded in the main mirror mounting base 22 and the widening mirror mounting base 24, and the main mirror mounting base 22 and the widening mirror mounting base 24 are respectively fixed on the fixed plate 25; The light from the No. 1 LED light-emitting chip 6 passes through the multi-segment free-curve reflective surface of the reflective bowl 7 to implement a light distribution, and then implements a secondary light distribution through the main lens 21 to meet the high beam light type requirements of automobile headlights. The light from the LED No. 2 light-emitting chip 4 is projected horizontally through the widening mirror 23 to form auxiliary lighting.

Referring to Fig. 3 and Fig. 4, radiator 5 is provided with first heat conduction pipe 51, second heat conduction pipe 52, heat sink 53 and cooling fan 54, first heat conduction pipe 51 and second heat conduction pipe 52 run through radiator 5 respectively, heat dissipation The fan 54 is fixed under the heat sink 53 . The rapid heat conduction to the light-emitting chip is realized through two heat pipes, and the heat is transferred to the heat sink 53 of the heat sink 5 to realize heat radiation and heat dissipation. To ensure heat dissipation efficiency, a DC heat dissipation fan 54 is added to enhance air convection.

Referring to Fig. 2, the main lens 21 is a hemispherical circular lens, which can play the role of concentrating light, so that the illumination intensity is more concentrated; the widening mirror 23 is a curved lens, which assists steering, and the auxiliary light port automatically opens when receiving a turning signal, and the lighting The range extends to both sides of the front of the car, that is, the irradiation range is wider.

With reference to Fig. 1, a kind of automobile LED headlamp also comprises reflective bowl 7 and protective cover 8, and reflective bowl 7 inner wall is provided with multi-section free curve reflective surface, and reflective bowl 7 is arranged on the top of LED No. 1 light-emitting chip 6, and is fixed on The upper surface of the radiator 5 ; the protective cover 8 is fixed on the radiator 5 , and the reflective bowl 7 is arranged between the protective cover 8 and the No. 1 LED light-emitting chip 6 . The light from the No. 1 LED light-emitting chip 6 passes through the multi-segment free-curve reflective surface of the reflective bowl 7 to implement a light distribution, and then implements a secondary light distribution through the main lens 21 to meet the high beam light type requirements of automobile headlights.

The first heat pipe 51 and the second heat pipe 52 are copper pipes, the material of the radiator 5 is aluminum, the LED No. 1 light-emitting chip 6 and the LED No. 2 light-emitting chip 4 are respectively connected with the first heat pipe 51 and the second heat pipe 52 Contact, through two heat pipes to achieve rapid heat conduction to the light-emitting chip, the heat is transferred to the heat sink 53 of the radiator 5 to realize heat radiation and heat dissipation, and a DC cooling fan 54 is added to enhance air convection to ensure heat dissipation efficiency.

The luminous power of LED No. 1 light-emitting chip 6 is 15W, and the luminous power of LED No. 2 light-emitting chip 4 is 12W.

During specific work, the No. 1 LED light-emitting chip 6 realizes the basic automobile headlight lighting function (main light system), and controls the far/low beam switching with the flap shading device 3 . LED No. 2 light-emitting chip 4 realizes the function of auxiliary light (auxiliary light system), which is divided into the following four situations: A is normally on, that is, it is used synchronously with the main light system; B is auxiliary steering, and the auxiliary light port is automatically turned on when receiving a turning signal , the lighting range expands to both sides of the front of the car, that is, the irradiation range is wider, and there is no visual blind spot when turning, which can directly replace the current complicated mechanical follow-up headlight mechanism (AFS); C auxiliary fog lights, when the external environment is bad, the driver can manually Turn on the auxiliary light system (low visibility: heavy rain/fog, etc.) to make the lighting more adequate and avoid traffic accidents; D intelligent lighting: through external sensors or manual switching, it can realize safe driving.

Intelligent lighting is divided into five modes,

a City mode: low beam on, auxiliary beam off. Avoid the excessive range of light type that will cause the car to be dazzled.

b Suburban mode: low beam on, fill beam on. Avoid too small a range of light patterns, animals under the roadbed cannot be found in time, and sudden crossing of the road will cause safety accidents.

c High-speed mode: high beam on, fill beam on. Take into account both near and far, and have a fuller vision. It is also suitable for off-road and slope road sections.

dParking mode: low/high beam off, auxiliary light on. Suitable for close-range/low-light/wide-area lighting such as vehicle maintenance/camping, reducing glare and energy consumption.

e-curve mode: The auxiliary light port is automatically turned on when receiving a turn signal, and the lighting range is extended to both sides of the front of the car, that is, the irradiation range is wider. The steering wheel will automatically turn off after returning to the center to achieve no visual blind spots when turning. It can directly replace the complicated mechanical follow-up headlight system (AFS).

The utility model is described above in conjunction with the best embodiment, but the utility model is not limited to the above-disclosed embodiment, but should cover various modifications and equivalent combinations based on the essence of the embodiment.

Claims (7)

1. an automobile LED headlamp, comprise: lampshade, lamp holder, turnover panel shade and radiator, it is characterized in that: also comprise LED luminescence chip and LED No. bis-luminescence chips, described LED luminescence chip and described LED No. bis-luminescence chips be arranged at respectively described radiator above and side; Described lamp holder is provided with main lens and widens mirror, and described main lens and described mirror of widening are embedded in primary mirror mount pad respectively and widen mirror mount pad, and described primary mirror mount pad and described mirror mount pad of widening are individually fixed in fixed head; Described radiator is provided with the first heat pipe, the second heat pipe, fin and heat emission fan, and described first heat pipe and described second heat pipe run through described radiator respectively, and described heat emission fan is fixed on below described fin.

2. a kind of automobile LED headlamp as claimed in claim 1, is characterized in that: described main lens is hemisphere round lens, described in widen mirror be curved lenses.

3. a kind of automobile LED headlamp as claimed in claim 1, it is characterized in that: described a kind of automobile LED headlamp also comprises reflector and protective cover, described reflector inwall is provided with multistage free curve reflecting surface, described reflector is arranged at the top of a described LED luminescence chip, and is fixed on the upper surface of described radiator; Described protective cover is fixed on described radiator, and described reflector is arranged between described protective cover and described LED luminescence chip.

4. a kind of automobile LED headlamp as claimed in claim 1, is characterized in that: described first heat pipe and described second heat pipe are copper pipe.

5. a kind of automobile LED headlamp as claimed in claim 1, is characterized in that: the material of described radiator is aluminium.

6. a kind of automobile LED headlamp as claimed in claim 1, is characterized in that: the luminous power of a described LED luminescence chip is 15W.

7. a kind of automobile LED headlamp as claimed in claim 1, is characterized in that: the luminous power of described LED No. bis-luminescence chips is 12W.