CN110553211A - Vehicle lighting lamp capable of adjusting color temperature - Google Patents

Abstract

The invention relates to the technical field of lighting fixtures, and discloses a vehicle lighting fixture with adjustable color temperature. It is located at the front end of the lens mounting bracket. The lens mounting bracket is fixedly connected to the rear housing. A plurality of light sources are arranged in a matrix on the front end of the circuit board. The front wall of the light guide plate is protrudingly provided with a plurality of light guides. The light sources are respectively arranged on the back side of the light guide body. The far and near light switching components include a light blocking plate, and the light blocking plate can be rotated up and down in front of the light guide plate. The light source includes two LED beads with different color temperatures. By adjusting the two The current of the LED lamp beads is used to adjust the color temperature and brightness of the light source. After the light from the light source is refracted by the light guide, it converges and emits from the lens. The technical solution of the invention can adjust the brightness and color temperature of the light source according to the needs, effectively respond to the lighting requirements in different climates, and effectively improve driving safety.

Description

Vehicle lighting fixtures with adjustable color temperature

technical field

The invention relates to the technical field of lighting fixtures, in particular to a vehicle lighting fixture with adjustable color temperature.

Background technique

In the traditional vehicle lighting fixtures, the lighting fixtures are equipped with lamp beads and reflective cups. The reflective surface of the reflective cups is usually provided with electroplating. The electroplating layer has the function of concentrating light and can reduce the loss of light energy. The role of spot lighting. However, the heat of the light source will cause the reflector to be heated for a long time, which will easily increase the temperature inside the lamp, so that the electroplating layer of the reflector will turn yellow and fall off, resulting in the loss of the reflector. The function of spotlight affects the luminous effect and lifespan of LED lighting, and the current traditional traffic lighting has only a single light color, and the light color and brightness are not adjustable enough to cope with different weather conditions, which is easy to cause traffic problems. Certain security risks.

Contents of the invention

The main purpose of the present invention is to propose a vehicle lighting fixture with adjustable color temperature, which aims to solve the problem that the existing lighting lamps only have a single light color, and the light color and brightness are not adjustable enough to cope with different weather conditions. A technical problem that brings certain safety hazards to driving.

In order to achieve the above object, the vehicle lighting fixture with adjustable color temperature proposed by the present invention includes a lens, a lens mounting frame, a rear shell, a circuit board, a plurality of light sources, a light guide plate and a far and near light switching assembly, and the lens mounting frame The front end of the lens mount is provided with a through hole adapted to the outer contour of the lens, the lens is embedded in the front end of the through hole, and the rear end of the lens mounting bracket is connected to the rear housing The front end is detachably and fixedly connected, the light source, the light guide plate, and the far and near light switching components are all arranged in the rear housing, and the outer peripheral wall of the rear housing is protruded with a plurality of cooling fins, and the circuit board is spaced are arranged on the back side of the light guide plate, and a plurality of the light sources are arranged in a matrix on the front end surface of the circuit board, and the front end wall of the light guide plate is protruded with a plurality of light guide bodies, and A plurality of the light sources are respectively arranged at intervals on the back side of the light guide body, the far and near light switching assembly includes a light blocking plate, and the light blocking sheet is arranged in an arc shape, and the light blocking sheet can be rotated up and down It is arranged in front of the light guide plate, and each light source includes two LED lamp beads with different color temperatures. By adjusting the current of the two LED lamp beads, the color temperature and brightness of the light source can be adjusted. The light from the light source is respectively refracted by the light guide body, converged and emitted from the lens for illumination.

Further, the two LED lamp beads respectively adopt a 3000K low color temperature LED lamp bead and a 6500K high color temperature LED lamp bead.

Further, the light guides are all aspherical.

Further, the light guide plate is integrally formed by injection molding of high temperature resistant PMMA material.

Further, a groove is recessed on the back side wall of the guide rail plate, and the light sources are located in the groove.

Further, the distance between the front end surface of the light source and the back side wall of the light guide plate is 0.7mm.

Further, the far and near light switching assembly also includes a mounting plate, a linear motor and a drive shaft, the mounting plate is vertically arranged in front of the light guide plate, and the light blocking sheet is rotatably arranged on the mounting plate The top of the front end wall of the linear motor is vertically arranged below the front end wall of the mounting plate, the two ends of the drive shaft are respectively fixedly connected with the light blocking sheet, and the output shaft of the linear motor is connected to the The drive shaft is fixedly connected, and the output shaft of the linear motor is perpendicular to the drive shaft.

Further, a cooling fan is also included, and the cooling fan is arranged on the upper end wall of the rear case.

Further, the inner peripheral wall of the front end of the through hole protrudes from a plurality of limiting protrusions, and the rear end wall of the lens abuts against the limiting protrusions respectively.

Further, it also includes a reflective cup, the reflective cup is arranged on the lower end wall of the rear casing, the upper end of the reflective cup is provided with an arc reflective surface, and the light guide plate is arranged above the arc reflective surface , the outer wall of the reflective cup is convexly provided with a plurality of cooling fins.

Adopting the technical solution of the present invention has the following beneficial effects: in the technical solution of the present invention, a plurality of light sources are arranged in a matrix on the front end of the circuit board, and the front wall of the light guide plate is protrudingly provided with a plurality of light guides, A plurality of light sources are arranged at intervals on the back side of the light guide body. The far and near light switching components include a light shielding plate, and the light shielding plate can be rotated up and down in front of the light guide plate. Each light source includes two LED lights with different color temperatures. Beads, by adjusting the current of the two LED lamp beads, the color temperature and brightness of the light source can be adjusted, and multiple light sources are optically refracted by the light guide, then pass through the light baffle and converge to emit from the lens for lighting and light guiding The optical characteristics of the body make the light of the light source refracted to generate an illumination light pattern that meets the ECER112Class B regulations (car light optics regulations). The light guide plate replaces the traditional reflector cup to concentrate light, and the light guide plate is integrally formed by all-optical grade injection molding. The precision is up to 0.003 microns, the optical consistency is high, the high beam can use the luminous cup as an independent light source, the brightness is higher, the brightness requirement is much higher than the national standard GB25991, and the linear motor drives the light plate to realize the switching of the high and low beam at any time. Compared with traditional lighting, it has the advantages of uniform brightness, strong penetrating power, and small light loss. The light source is clearly visible, and driving at night is safer. The color temperature and brightness of the light source can be adjusted manually or automatically according to the weather conditions, so that it can be effectively Respond to lighting needs in different climates and effectively improve driving safety.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is a schematic diagram of the overall structure of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention;

Fig. 2 is a schematic diagram of the overall structure of another viewing angle of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention;

Fig. 3 is a schematic diagram of an exploded structure of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of an assembly structure of a light guide plate, a circuit board and a light source of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention;

5 is a schematic diagram of an exploded structure of a light guide plate, a circuit board, and a light source of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of an exploded structure of a light guide plate, a circuit board, and a light source of a vehicle lighting fixture with adjustable color temperature according to an embodiment of the present invention.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

The invention provides a vehicle lighting fixture with adjustable color temperature.

As shown in FIGS. 1 to 6 , in an embodiment of the present invention, the vehicle lighting fixture with adjustable color temperature includes a lens 100 , a lens mounting frame 200 , a rear case 300 , a circuit board 400 , and a plurality of light sources 500 , the light guide plate 600 and the far and near light switching assembly 700, the front end of the lens mounting frame 200 is provided with a through hole 201 adapted to the outer contour of the lens 100, and the lens 100 is embedded in the through hole 201 The front end of the lens mount 200 is detachably and fixedly connected to the front end of the rear housing 300, and the light source 500, the light guide plate 600 and the far and near light switching assembly 700 are all arranged on the rear Inside the casing 300, and the outer peripheral wall of the rear casing 300 is protruded with a plurality of cooling fins 301, the circuit board 400 is arranged on the back side of the light guide plate 600 at intervals, and a plurality of the light sources 500 Arranged in a matrix on the front end of the circuit board 400, the front wall of the light guide plate 600 is protrudingly provided with a plurality of light guides 601, and a plurality of the light sources 500 are arranged on the front end of the light guide 600 at intervals. On the back side of the light body 601, the far and near light switching assembly 700 includes a light blocking plate 701, and the light blocking plate 701 is arranged in an arc shape, and the light blocking plate 701 can be rotated up and down and arranged on the side of the light guide plate 600. In front, so as to switch between high beam and low beam, each light source 500 includes two LED lamp beads 501 with different color temperatures, and the color of the light source 500 can be adjusted by adjusting the current of the two LED lamp beads 501 Moderate and bright, the light from the light source 500 is respectively refracted by the light guide 601, then converged and emitted from the lens 100 for illumination.

Specifically, the two LED lamp beads 501 respectively adopt a 3000K low color temperature LED lamp bead and a 6500K high color temperature LED lamp bead, and perform color mixing according to the colors of the two LED lamps, and the color mixing is uniform, and the color rendering is excellent. Yes, the brightness and color temperature of the light source can be adjusted according to the needs, and the color cast can be effectively reduced.

Specifically, the light guides 601 are all aspherical, so that the light emitted by the light source is uniform and does not diverge, which not only ensures high brightness, but also does not affect the normal driving of other drivers on the road. The spherical surface makes the light type comply with the requirements of the regulation ECER112ClassB.

Specifically, the light guide plate 600 is integrally formed by injection molding of high temperature resistant PMMA material, and the injection molding accuracy is 0.003 microns.

Specifically, a groove 602 is recessed on the back side wall of the guide rail plate 600, and the light sources 500 are located in the groove 602, which plays a role of shading, improves the utilization rate of the light source, saves energy and reduces consumption.

Specifically, the distance between the front surface of the light source 500 and the back side wall of the light guide plate 600 is 0.7mm.

Specifically, the far and near light switching assembly 700 also includes a mounting plate 702, a linear motor 703 and a drive shaft 704, the mounting plate 702 is vertically arranged in front of the light guide plate 600, and the light blocking plate 701 is rotatable is arranged above the front end wall of the installation plate 702, the linear motor 703 is vertically arranged below the front end wall of the installation plate 702, and the two ends of the drive shaft 704 are respectively connected to the light blocking sheet 701 is fixedly connected, the output shaft of the linear motor 703 is fixedly connected with the driving shaft 704 , and the output shaft of the linear motor 703 and the driving shaft 704 are arranged perpendicular to each other.

Specifically, a heat dissipation fan 800 is also included, and the heat dissipation fan 800 is arranged on the upper end wall of the rear casing 300 to improve the heat dissipation performance and prolong the service life.

Specifically, a plurality of limiting protrusions 202 protrude from the inner peripheral wall of the front end of the through hole 201 , and the rear end wall of the lens 100 abuts against the limiting protrusions 202 respectively, so as to facilitate the installation and assembly of the lens.

Specifically, it also includes a reflective cup 900, the reflective cup 900 is arranged on the lower end wall of the rear housing 300, the upper end of the reflective cup 900 is provided with an arc reflective surface 901, and the light guide plate 600 is located on the Arranged above the arc reflective surface 901, the outer wall of the reflective cup 900 is protruded with a plurality of cooling fins 902, the high beam can use the luminous cup as an independent light source, the brightness is higher, and the brightness requirement is much higher than the national standard GB25991. , Driving at night is safer.

Specifically, in the present invention, a plurality of light sources are arranged in a matrix on the front end surface of the circuit board, a plurality of light guide bodies are protruded from the front wall of the light guide plate, and a plurality of light sources are respectively arranged on the back of the light guide body at intervals. On the side, the far and near light switching component includes a light blocking plate, and the light blocking plate can be rotated up and down in front of the light guide plate. Each light source includes two LED lamp beads with different color temperatures. By adjusting the current of the two LED lamp beads, To adjust the color temperature and brightness of the light source, and multiple light sources are optically refracted by the light guide, then pass through the light baffle and converge to emit from the lens for illumination. The optical characteristics of the light guide make the light of the light source refracted to meet the ECE requirements. The lighting pattern of the R112Class B regulation (car light optics regulations) replaces the traditional reflector with a light guide plate to concentrate light, and the light guide plate is integrally formed by all-optical-grade injection molding with an injection molding accuracy of 0.003 microns, high optical consistency, and high beam. The lamp can use a luminous cup as an independent light source, which has higher brightness, and the brightness requirements are much higher than the requirements of the national standard GB25991, and the linear motor drives the light plate to realize the switching of far and near light at any time. Compared with traditional lighting lamps, it has uniform brightness. Strong penetrating power, small light loss, etc., high light source utilization rate, less heat generated, clear light source, safer driving at night, and the color temperature and brightness of the light source can be adjusted manually or automatically according to the weather conditions, so that it can effectively cope with different conditions. The lighting requirements in the climate can effectively improve driving safety.

The above is only a preferred embodiment of the present invention, and does not therefore limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or direct/indirect use All other relevant technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. A vehicle lighting fixture with adjustable color temperature, characterized in that it comprises a lens, a lens mounting frame, a rear casing, a circuit board, a plurality of light sources, a light guide plate and a far and near light switching assembly, and the lens mounting frame The front end is provided with a through hole adapted to the outer contour of the lens, the lens is embedded in the front end of the through hole, and the rear end of the lens mounting bracket is connected to the front end of the rear housing. The parts are detachably and fixedly connected, the light source, the light guide plate, and the far and near light switching components are all arranged in the rear casing, and the outer peripheral wall of the rear casing is protruded with a plurality of heat dissipation fins, and the interval between the circuit boards It is arranged on the back side of the light guide plate, and a plurality of the light sources are arranged in a matrix on the front end surface of the circuit board. The front wall of the light guide plate is provided with a plurality of light guide bodies, and more The two light sources are respectively arranged at intervals on the back side of the light guide body, the far and near light switching assembly includes a light blocking plate, and the light blocking sheet is arranged in an arc shape, and the light blocking sheet can be rotated up and down. In front of the light guide plate, each of the light sources includes two LED lamp beads with different color temperatures. By adjusting the current of the two LED lamp beads, the color temperature and brightness of the light source can be adjusted. After being refracted by the light guide body, the light rays are converged and emitted from the lens for illumination. 2. The vehicle lighting fixture with adjustable color temperature according to claim 1, wherein the two LED lamp beads are respectively a 3000K low color temperature LED lamp bead and a 6500K high color temperature LED lamp bead. beads. 3 . The vehicle lighting fixture with adjustable color temperature according to claim 1 , wherein the light guides are all aspherical. 4 . 4 . The vehicle lighting fixture with adjustable color temperature according to claim 1 , wherein the light guide plate is integrally formed by injection molding of high temperature resistant PMMA material. 5 . The vehicle lighting fixture with adjustable color temperature according to claim 1 , wherein a groove is recessed on the back side wall of the guide rail plate, and the light sources are all located in the groove. 6 . 6 . The vehicle lighting fixture with adjustable color temperature according to claim 1 , wherein the distance between the front end of the light source and the back side wall of the light guide plate is 0.7 mm. 7. The vehicle lighting fixture with adjustable color temperature according to claim 1, characterized in that, the far and near beam switching assembly further comprises a mounting plate, a linear motor and a drive shaft, and the mounting plate is vertically arranged on the In front of the light guide plate, the light blocking sheet is rotatably arranged above the front end wall of the installation plate, the linear motor is vertically arranged below the front end wall of the installation plate, and the drive shaft The two ends are respectively fixedly connected to the light blocking sheet, the output shaft of the linear motor is fixedly connected to the driving shaft, and the output shaft of the linear motor and the driving shaft are arranged perpendicular to each other. 8 . The vehicle lighting fixture with adjustable color temperature according to claim 1 , further comprising a heat dissipation fan, and the heat dissipation fan is arranged on the upper end wall of the rear housing. 9. The vehicle lighting fixture with adjustable color temperature according to claim 1, characterized in that, the inner peripheral wall of the front end of the through hole is protruded with a plurality of limiting protrusions, and the rear end wall of the lens is respectively connected to the The limiting protrusion abuts against. 10. The vehicle lighting fixture with adjustable color temperature according to claim 1, further comprising a reflector, the reflector is arranged on the lower end wall of the rear housing, and the upper end of the reflector is arranged There is an arc reflective surface, the light guide plate is located above the arc reflective surface, and a plurality of cooling fins protrude from the outer wall of the reflective cup.