CN223768736U - A white laser car auxiliary light - Google Patents

Abstract

The utility model relates to the technical field of auxiliary lamps of vehicles, in particular to a white laser automobile auxiliary lamp which comprises a vehicle lamp shell, an optical assembly and a driving plate, wherein an LED light source and a white laser light source are arranged in the vehicle lamp shell, the optical assembly is used for distributing light of the LED light source and the white laser light source to enable the light of the LED light source and the white laser light source to irradiate forward of the vehicle lamp, the driving plate is arranged in the vehicle lamp shell, and a driving circuit is arranged on the driving plate and is electrically connected with the LED light source and the white laser light source to control the driving circuit. In the utility model, the LED light source and the white laser light source are complementary, so that the uniform illumination of a low beam area can be ensured, and the high beam illumination capability can be enhanced. The driving circuit can dynamically adjust the brightness and distribution of the LEDs and the laser light sources according to different working conditions, so that the driving safety of a driver in an environment with poor lighting conditions is greatly improved.

Description

White laser automobile auxiliary lamp

Technical Field

The utility model relates to the technical field of auxiliary lamps of vehicles, in particular to a white laser automobile auxiliary lamp.

Background

The automobile headlights in the current market are mainly halogen lamps, xenon lamps and LED lamps, and are designed for urban road illumination, so that the defects of limited illumination range and low brightness exist, and the illumination requirements of drivers in environments with poor illumination conditions cannot be met.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

Disclosure of utility model

The utility model provides a white laser automobile auxiliary lamp, which effectively solves the problems in the background technology.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the white laser automobile auxiliary lamp comprises:

the automobile lamp comprises an automobile lamp shell, wherein an LED light source and a white laser light source are arranged in the automobile lamp shell;

The optical assembly is used for distributing light to the LED light source and the white laser light source, so that the light of the LED light source and the white laser light source irradiates to the front of the car lamp;

The driving plate is arranged in the car lamp shell, a driving circuit is arranged on the driving plate, and the driving circuit is electrically connected with the LED light source and the white laser light source to control the LED light source and the white laser light source.

Further, the LED light source comprises a PCB board, a plurality of LED lamps are arranged on the PCB board, and the LED lamps are arranged on the PCB board.

Further, the PCB is arranged at the bottom of the car lamp shell, and the LED lamps are arranged at the upper end of the PCB and irradiate upwards;

The optical assembly comprises a reflector, a plurality of reflecting bowls are arranged on the reflector, each reflecting bowl corresponds to one LED lamp, and light irradiated by the corresponding LED lamp is reflected to the front of the irradiated car lamp.

Further, the white laser light source comprises a white laser module, the white laser module is a reflective light source, and the white laser module emits laser to the front of the car lamp.

Further, the optical assembly comprises an optical lens, and the optical lens is arranged on the laser path of the white laser module and is used for shaping the laser beam.

Further, the LED lamps are symmetrically arranged with respect to the white laser module, a containing groove is formed in the middle of the reflecting mirror, and the optical lens is arranged in the containing groove.

Further, the driving board is arranged at the top part in the car lamp housing, and the driving circuit comprises an anti-reverse circuit, an MCU, a temperature sampling control circuit, a white laser light source constant current driving circuit and a double-path LED constant current driving circuit.

Further, the lamp housing is provided with an outer lamp cover in front of the lamp.

Further, the car lamp shell comprises an upper shell and a lower shell, a waterproof rubber ring is arranged between the upper shell and the lower shell, a plurality of heat dissipation grooves are formed in the lower shell, and the heat dissipation grooves are arranged in parallel.

The LED light source and the white laser light source are combined, the brightness of the white laser light source is far beyond that of the LED, a farther visual range can be provided, and the driving safety at night and in severe weather is improved. The LED light source and the white laser light source are complemented by reasonable light distribution of the optical component, so that uniform illumination of a low beam region can be ensured, and high beam irradiation capability can be enhanced. The driving circuit can dynamically adjust the brightness and distribution of the LEDs and the laser light sources according to different working conditions, so that the driving safety of a driver in an environment with poor lighting conditions is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.

FIG. 1 is a schematic view of the present utility model with an upper housing hidden;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the present utility model;

FIG. 4 is a front view of the bottom of the lower housing;

FIG. 5 is a circuit topology diagram of an anti-reverse connection;

FIG. 6 is a topology diagram of an MCU and a temperature sampling control circuit;

FIG. 7 is a topology diagram of a constant current drive circuit for a white laser light source;

Fig. 8 is a topology diagram of a two-way LED constant current drive circuit.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1:

as shown in fig. 1 to 4, a white laser automobile auxiliary lamp includes:

A car lamp shell, wherein an LED light source and a white laser light source 4 are arranged in the car lamp shell;

The optical assembly is used for distributing light to the LED light source and the white laser light source 4, so that the light of the LED light source and the white laser light source 4 irradiates to the front of the car lamp;

The driving plate 6, the driving plate 6 sets up in the car lamp housing, is provided with drive circuit on the driving plate 6, and drive circuit is connected with LED light source and white laser light source 4 electricity, controls it.

By combining the LED light source and the white laser light source 4, the brightness of the white laser light source 4 is far beyond that of the LED, so that a farther visual range can be provided, and the driving safety at night and in severe weather is improved. The LED light source and the white laser light source 4 are complemented by reasonable light distribution of the optical component, so that uniform illumination of a low beam region can be ensured, and high beam irradiation capability can be enhanced. The driving circuit can dynamically adjust the brightness and distribution of the LEDs and the laser light sources according to different working conditions, so that the driving safety of a driver in an environment with poor lighting conditions is greatly improved.

In this embodiment, the LED light source includes a PCB board 11, a plurality of LED lamps are disposed on the PCB board 11, and the plurality of LED lamps are arranged on the PCB board 11, and include 6 LEDs with 2 chips in total, and the total luminous flux is about 4000lm.

The LED lamps are arranged on the PCB 11 and irradiate upwards, so that light rays can be redirected through the reflecting system, direct glare is avoided, the light efficiency utilization rate is improved, the LED light sources are mainly used for providing basic illumination, the low beam requirements are met, the uniform illumination of a front area of a vehicle is ensured, and more uniform illumination distribution can be realized through the layout of a plurality of LED lamps.

The PCB 11 is arranged at the bottom of the car lamp shell, and the LED lamps are arranged at the upper end of the PCB 11 and irradiate upwards;

The optical assembly comprises a reflector 2, a plurality of reflecting bowls are arranged on the reflector 2, each reflecting bowl corresponds to one LED lamp, and light irradiated by the corresponding LED lamp is reflected to the front of the irradiated car lamp.

The reflecting bowl is used for reflecting light beams of 6 2-chip LED light sources to form a specific auxiliary high beam light type, the reflecting bowl is formed by plating aluminum on PC, and the reflectivity is 80%.

The reflecting bowl on the reflecting mirror 2 carries out independent light distribution on each LED lamp, reduces light loss, enhances the directivity and brightness of light, and can optimize the light spot shape by accurately designing the curved surface shape of the reflecting bowl, so that the light is more uniform and clear in the low beam and high beam modes.

In this embodiment, the white laser light source 4 includes a white laser module, which is a reflective light source, and emits laser light to the front of the vehicle lamp.

The distance light range of the traditional LED or xenon lamp is limited, the white laser light source 4 can realize more distant light beam projection, the night driving safety is improved, the light intensity of the white laser is far beyond that of the LED, higher brightness is provided under the same power consumption, and the LED or xenon lamp is suitable for low-light environments such as highways, mountain areas and the like. The module uses a technology of converting blue light emitted by a blue laser tube into white light through a high-performance fluorescent sheet. The emitted white light flux was 430lm. The reflective design in the white laser module can ensure that the risk of directly emitting high-energy blue light is avoided even if the fluorescent sheet falls off, and the safety of the laser headlight in the use process is ensured.

As a preferable example of the above embodiment, the optical assembly includes an optical lens 3, and the optical lens 3 is disposed on a laser path of the white laser module to shape the laser beam.

The laser beam is shaped through the lens 3 system, so that light spots are more uniform, strong light focusing points are reduced, the glare problem is avoided, and the optical lens 3 is used for shaping the laser beam and is mainly used for supplementing the irradiation distance of auxiliary high beam patterns. The lens 3 is made of PMMA, and has a refractive index of 1.492 and a light transmittance of 90%.

As a preferable example of the above embodiment, a plurality of LED lamps are symmetrically arranged about the white laser module, a receiving groove is provided in the middle of the reflecting mirror 2, and the optical lens 3 is disposed in the receiving groove.

The LED lamps are symmetrically distributed around the white laser module, so that the light coverage area is more uniform, and uneven brightness and shadow areas are reduced. LEDs provide a broad base illumination, especially for low speed driving or urban roads, avoiding too concentrated laser beams affecting visual comfort. The accommodating groove is arranged in the middle of the reflecting mirror 2, so that the white laser module is embedded in the accommodating groove, the whole optical structure is not influenced, the interference of the laser module to other optical elements is reduced, the white laser module is placed in the middle, the transmission of a high beam along an optimal irradiation path is ensured, and the long-distance illumination effect is improved.

The driving board 6 is arranged at the top in the car lamp body, and the driving circuit comprises an anti-reverse circuit, an MCU, a temperature sampling control circuit, a white laser light source 4 constant current driving circuit and a double-path LED constant current driving circuit.

As a preferable example of the above embodiment, the lamp housing is provided with the outer lamp cover 1 in front of the lamp.

The outer globe 1 may protect the inner optical components from dust, muddy water, broken stone. High light transmittance materials (such as PC (polycarbonate) and PMMA (acrylic)) can be adopted, the maximum luminous flux output is ensured, an anti-dazzle coating can be added, the dazzle is reduced, the driving safety is improved, the structure of the surface micro lens 3 is selected, the light beam distribution is optimized, and the uniformity is improved.

Wherein, the car light casing includes casing 7 and lower casing 9, is provided with waterproof rubber ring 8 between casing 7 and the lower casing 9, and lower casing 9 is provided with a plurality of heat dissipation grooves 91, and heat dissipation groove 91 parallel arrangement.

Example 2:

The embodiment discloses a white laser automobile auxiliary lamp, this white laser automobile auxiliary lamp's last casing has unique molding structure with lower casing design, bilateral symmetry, and is equipped with many heat dissipation grooves, helps increasing heat radiating area, and the air current of being convenient for is through taking away lamps and lanterns heat, reinforcing lamps and lanterns's heat dispersion.

The LED light source is fixed on the LED PCB, the LED PCB and the reflector are directly fixed by screws, and then the LED PCB and the reflector are fixed on the lower shell together. The white laser light source module is fixed in the white laser light source module positioning base by screws, and the lens is fixed in a limit groove at the front end of the white laser light source module positioning base, and then the white laser light source module and the lens are fixed together in the lower shell. The design of the direct positioning of the light source and the optical part can reduce assembly errors, and is beneficial to ensuring consistency of light patterns.

The drive plate is fixed on the upper shell through the screw, heat generated by components on the drive plate can be conducted to the upper shell and separated from the LED light source and the laser light source heat dissipation system on the lower shell, so that the heat conduction is better and faster, the best heat dissipation performance is achieved, the lighting performance of the lamp is guaranteed, and the service life of the lamp is prolonged.

The driving board controls the light irradiation mode switching of the lamp light, which is an urban area mode and a high-speed mode respectively. The urban area mode is suitable for being used under the condition of good road illumination conditions such as urban areas, and the high-speed mode is suitable for being used under the environment with poor illumination conditions such as high speed, suburban areas and the like.

(1) In urban mode, all LED light sources are illuminated. The LED light source emits light beams, and the reflector reflects and shapes the light emitted by the LED and is mainly used for forming an auxiliary high beam type illumination width in the horizontal direction. At the same time, the white laser light source module is lightened, and the power of the white laser light source is adjusted to half of that of the high-speed mode. The white laser module emits laser beams, the laser beams enter the laser optical lens, and the laser beams are emitted after being shaped by the lens, so that the white laser module is mainly used for increasing the irradiation distance of auxiliary high beam patterns. The LED light source and the laser light source are combined together to form an auxiliary high beam light type with special design, so that the illumination width is ensured, and the illumination distance is also considered.

The preset loading width of the white laser automobile auxiliary lamp is 0.6m, the height is 1.9m, and the white laser automobile auxiliary lamp is one at each side. 5lx isocenter maximum irradiation distance 237m, 5lx line width 30 m at front 50m, 5lx line width 31 m at front 100 m.

(2) In the high speed mode, all the LED light sources are lit while the white laser light source module is lit. The light path design of the high-speed mode and the urban mode is the same, and the only difference is that the lighting power of the white laser light source is increased in the high-speed mode for further improving the irradiation distance of the lamp.

The preset loading width of the white laser automobile auxiliary lamp is 0.6m, the height is 1.9m, and the white laser automobile auxiliary lamp is one at each side. The maximum irradiation distance of 5lx isocenter is 350m, the width of 5lx at the front 50 meters is 29 meters, and the width of 5lx at the front 100 meters is 30 meters.

(3) The function of the driving plate is realized, the driving plate 2 realizes reverse connection protection, temperature control, mode control and thermal management control through an active MCU control and vehicle-standard driving chip, and the control principle is as follows:

Fig. 5 is a reverse connection preventing, surge preventing and power supplying circuit, a reliable power supply is provided for a rear circuit, fig. 6 is an MCU and a temperature sampling control circuit, the MCU and the temperature sampling control circuit are used for collecting working temperatures of an LED, a PCB and a white laser light source, driving currents of loads are adjusted according to the working temperatures, an auxiliary lamp works in a high-efficiency temperature control range, fig. 7 is a white laser constant current driving circuit, mode switching can be performed on an EN pin to control the output current, and fig. 8 is a high-efficiency double-path LED driving circuit, and working current and temperature sampling of the high-efficiency double-path LED driving circuit can be controlled through the MCU, so that the high-efficiency double-path LED driving circuit works in an optimal working condition. The circuit breaker has the output short circuit and circuit breaking protection functions.

In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. The meaning of "a plurality of" is two or more, unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (9)

1. A white laser automotive auxiliary light, characterized in that it comprises: The headlight housing contains an LED light source and a white laser light source. An optical component that distributes light from the LED light source and the white laser light source so that the light from the LED light source and the white laser light source shines in front of the vehicle headlight; A drive board is disposed inside the headlight housing. The drive board is provided with a drive circuit, which is electrically connected to and controls the LED light source and the white laser light source. 2. The white laser automotive auxiliary light according to claim 1, wherein the LED light source includes a PCB board, and a plurality of LED lights are disposed on the PCB board, the plurality of LED lights being arranged on the PCB board. 3. The white laser automotive auxiliary light according to claim 2, characterized in that the PCB board is disposed at the bottom of the headlight housing, and a plurality of LED lights are disposed at the upper end of the PCB board and illuminate upward; The optical component includes a reflector with a plurality of reflector bowls, each of which corresponds to an LED light, reflecting the light emitted by the corresponding LED light to the front of the headlight. 4. The white laser automotive auxiliary light according to claim 3, wherein the white laser light source includes a white laser module, the white laser module is a reflective light source, and the white laser module emits laser light in front of the headlight. 5. The white laser automotive auxiliary light according to claim 4, wherein the optical component includes an optical lens, the optical lens being disposed on the laser path of the white laser module to shape the laser beam. 6. The white laser automotive auxiliary light according to claim 5, characterized in that a plurality of the LED lights are symmetrically arranged about the white laser module, a receiving groove is provided in the middle of the reflector, and the optical lens is disposed in the receiving groove. 7. The white laser automotive auxiliary light according to claim 1, wherein the driving board is disposed at the top inside the headlight housing, and the driving circuit includes a reverse connection protection circuit, an MCU and a temperature sampling control circuit, a white laser light source constant current driving circuit, and a dual-channel LED constant current driving circuit. 8. The white laser automotive auxiliary light according to claim 1, characterized in that the lamp housing is provided with an outer lamp cover in front of the lamp. 9. The white laser automotive auxiliary light according to claim 1, characterized in that the light housing includes an upper housing and a lower housing, a waterproof rubber ring is provided between the upper housing and the lower housing, and the lower housing is provided with a plurality of heat dissipation grooves arranged in parallel.