CN214745462U

CN214745462U - Car light lighting system

Info

Publication number: CN214745462U
Application number: CN202121118359.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Guangzhou Optical Technology Co ltd
Current assignee: Guangzhou Optical Technology Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-11-16
Anticipated expiration: 2031-05-24

Abstract

The utility model discloses a car lamp lighting system, which comprises a heat dissipation substrate, a near light module arranged below the heat dissipation substrate, a high beam module arranged above the heat dissipation substrate, and a light-emitting lens arranged behind the near light module and the high beam module along the light path; the low beam module comprises: the LED light source, the light reflecting bowl corresponding to the LED light source, the light blocking piece and the light guide piece; the LED light source emits first light, second light emitted to the light blocking piece is obtained after the first light is reflected by the light reflecting bowl, third light with clear cut-off lines is formed after the second light is blocked by the light blocking piece, the third light is reflected by the light guide piece and then is projected to the lower part of the light emitting lens, and the third light is emitted to be near light through the light emitting lens; the high beam module emits high beam light through the upper part of the light-emitting lens. Car light lighting system need not to use the solenoid valve to carry out far away, short-distance beam and switch, the light and shade cut-off line is clear, far away light irradiation ability reinforce, and overall structure is simple compact.

Description

Car light lighting system

Technical Field

The utility model relates to a non-portable lighting device or its system field, more specifically relates to a car light lighting system

Background

The automobile headlamp is also called as an automobile headlamp and is mainly used for automobile night illumination, and the illumination effect of the automobile headlamp directly influences the operation of driving at night and the traffic safety. The automobile headlamp is usually a halogen lamp, a xenon lamp or an LED lamp, however, the halogen lamp and the xenon lamp are not only large in size, low in photoelectric conversion efficiency and large in beam divergence angle, resulting in low light intensity and limited illumination distance. The LED light source has the advantages of low voltage, long service life, small volume, quick response, energy conservation, environmental protection and the like, is the mainstream configuration of the automobile headlamp in recent years, and is the main development trend of the automobile headlamp in the future. The existing LED lens headlamp usually uses a solenoid valve light cutting sheet to switch the distance light and the near light. The solenoid valve light-cutting sheet generally has the following disadvantages: (1) the electromagnetic valve has larger structural size, so that the size of the lens headlamp cannot be reduced, the structure is complex, and the stability is checked; (2) the electromagnetic valve is easy to damage, and the service life of the electromagnetic valve is far shorter than that of other parts, so that the service life of the car lamp is shortened; (3) because the electromagnetic valve needs to give consideration to both high beam and low beam, the light gathering capability of the high beam is not strong enough, and the high beam irradiation capability is poor. Therefore, a vehicle lamp lighting system solving the above problems is desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's at least one defect, providing a car light lighting system, car light lighting system need not to use the solenoid valve to carry out far and near light and switches, and the light and shade cut-off line is clear, and far-reaching beam shines the ability reinforce, and overall structure is simple compact.

The utility model adopts the following technical scheme:

a car light lighting system comprises a heat dissipation substrate, a dipped beam module arranged below the heat dissipation substrate, a high beam module arranged above the heat dissipation substrate, and a light emitting lens arranged behind the dipped beam module and the high beam module along a light path; the low beam module comprises: the LED light source, the light reflecting bowl corresponding to the LED light source, the light blocking piece and the light guide piece; the LED light source emits first light, second light emitted to the light blocking piece is obtained after the first light is reflected by the light reflecting bowl, third light with clear cut-off lines is formed after the second light is blocked by the light blocking piece, the third light is reflected by the light guide piece and then is projected to the lower part of the light emitting lens, and the third light is emitted to be near light through the light emitting lens; the high beam module emits high beam light through the upper part of the light-emitting lens.

This application sets up the passing light module in the below of radiating basal plate, sets up the distance light module in the top of radiating basal plate, and the passing light module is from the lower part outgoing passing light of light-emitting lens, and the distance light module is from the upper portion outgoing distance light of light-emitting lens. The light blocking member is used by the near-light module, the first light rays emitted by the LED light source are reflected by the light reflecting bowl to obtain second light rays emitted to the light blocking member, the light blocking member has a light blocking effect, part of the second light rays are blocked by the light blocking member, the rest of the second light rays which are not blocked form third light rays with distinct cut-off lines, the third light rays are reflected under the reflection effect of the light guide member, the reflected light rays are projected to the lower part of the light emitting lens, and the light emitting lens can refract the reflected light rays to obtain the near-light rays with clear cut-off lines and meeting the vehicle lamp lighting specification. This application sets up the barn door piece in passing through the optical module, and the barn door piece only is in the light to passing through the optical beam, and the light of distance beam module then direct outgoing does not pass through the barn door piece, therefore the spotlight ability and the distance beam irradiation ability of distance beam module are strong. This application is still through setting up light guide for the passing beam module can set up in the below of heat dissipation base plate, has reduced the volume of car light widely, makes car light lighting system small, compact structure.

Further, the light guide is an opaque reflector plate. The light guide changes the light path, reflects the third light and projects the third light to the lower part of the light-emitting lens.

Furthermore, the light-tight reflector plate is a metal plate, a plastic plate plated with a metal layer or a glass plate plated with a reflective layer. The metal sheet has a good mirror reflection effect; the plastic sheet plated with the metal layer is light in weight and low in price; the opaque glass plate plated with the reflecting layer has good emission effect.

Further, the light blocking member is an arc-shaped light blocking sheet. The structure of the light blocking piece used in the application can be an arc light blocking piece structure which is commonly used in the market and is controlled and switched by the electromagnetic valve, and the difference is only that the light blocking piece is fixed and is not controlled by the electromagnetic valve. Furthermore, the arc-shaped light blocking sheet comprises a first arc section and a second arc section, and the heights of the first arc section and the second arc section are different.

In one embodiment, the high beam module includes: the LED luminous body and the small lens are used for gathering light rays emitted by the LED luminous body, and the light rays emitted by the LED luminous body are emitted out parallel high-beam light rays after the action of the small lens and the light-emitting lens. The LED light source emits light rays in a Lambert shape, the divergence angle is too large, the small lenses are arranged to fold Lambert LED light, the light ray divergence angle of the LED luminous body is reduced, and the light ray utilization rate is improved.

In another embodiment, the high beam module comprises: the laser light source, the wavelength conversion element and the first collimating lens are sequentially arranged along the light path of the laser light source, laser light emitted by the laser light source is converted into white light through the wavelength conversion element, and the white light is emitted to parallel high beam light after the white light is acted by the first collimating lens and the light emitting lens. The application far-reaching beam module can use transmission type laser module, laser projects and can produce white light behind the wavelength conversion component, and the white light that produces is the type of dispersing, consequently uses first collimation lens can draw in the white light of the type of dispersing, improves and utilizes light efficiency, the parallel far-reaching beam light of light lens outgoing is passed in and out again to light. Furthermore, a second collimating lens, a uniform light scattering unit and a focusing lens are sequentially arranged between the laser light source and the wavelength conversion element along the light path of the laser light source. The second collimating lens can further collimate the laser emitted by the laser source to obtain parallel laser rays, the uniform light scattering unit can homogenize laser spots focused on the wavelength conversion element, the efficiency of the wavelength conversion material is improved, and the focusing lens focuses the homogenized laser on the wavelength conversion element. Preferably, the uniform light scattering unit is an optical diffusion sheet.

In another embodiment, the high beam module comprises: the laser light source comprises a laser light source, a first light turning piece, a second light turning piece, a first collimating lens and a wavelength conversion element, wherein laser light emitted by the laser light source is reflected by the first light turning piece and the second light turning piece in sequence, and then is focused on the wavelength conversion element through the first collimating lens, the laser light is converted into white light after passing through the wavelength conversion element, and the white light emits parallel far-light rays after passing through the first collimating lens and the light emitting lens. The application far-reaching beam module can also use reflection-type laser module, light takes place twice reflection under the effect of first light refraction piece and second light refraction piece, laser after the reflection can produce white light after projecting wavelength conversion component, and the white light that produces is the type of dispersing, consequently uses first collimation lens to draw in the white light of the type of dispersing, improves and utilizes light efficiency, the parallel far-reaching beam of light lens outgoing is passed in and out again to light. The first collimating lens not only plays a role in collecting white light, but also plays a role in focusing laser reflected by the second light turning piece on the wavelength conversion element, namely the first collimating lens plays a focusing role on the laser and plays a role in collecting the white light.

Furthermore, a second laser collimating lens, a uniform light scattering unit and a focusing lens are sequentially arranged between the laser light source and the first light turning piece along the light path of the laser light source. Furthermore, the uniform light scattering unit is an optical diffusion sheet.

Furthermore, the light-emitting lens comprises a high beam lens positioned on the upper part of the light-emitting lens and a low beam lens positioned on the lower part of the light-emitting lens, and the light blocking member is arranged on a focal plane of the low beam lens. Further, the low beam lens and the high beam lens are integrally molded.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model does not need to use the electromagnetic valve to switch the far and near light, and the car lamp has simple structure and long service life; the utility model arranges the light blocking sheet in the short-distance light module, the light blocking sheet only blocks the light of the short-distance light, the light of the high beam module directly goes out and does not pass through the light blocking sheet, thus the light gathering capacity and the high beam irradiation capacity of the high beam module are strong; the utility model discloses a set up light guide for the short-distance beam module can set up in the below of heat dissipation base plate, has reduced the volume of car light widely, makes car light lighting system small, compact structure.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.

Fig. 4 is a schematic perspective view of the light blocking member of the present invention.

Description of reference numerals: 1. a heat-dissipating substrate; 2. a short-distance light module; 21. an LED light source; 22. a light reflecting bowl; 23. a light blocking member; 24. a light-guide; 3. a high beam module; 31. an LED light emitter; 32. a lenslet; 33. a laser light source; 34. a wavelength conversion element; 35. a first collimating lens; 36. a second collimating lens; 37. a uniform light scattering unit; 38. a focusing lens; 391. A first light turning member; 392. a second light turning member; 4. a light-emitting lens; 41. a high beam lens; 42. a low beam lens.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, the present embodiment discloses a vehicle lamp lighting system, which includes a heat dissipating substrate 1, a low beam module 2 disposed below the heat dissipating substrate, a high beam module 3 disposed above the heat dissipating substrate, and a light emitting lens 4 disposed behind the low beam module 2 and the high beam module 3 along a light path, wherein the light emitting lens 4 includes a high beam lens 41 disposed on an upper portion of the light emitting lens 4 and a low beam lens 42 disposed on a lower portion of the light emitting lens, and the high beam lens 41 and the low beam lens 42 are integrally formed.

The low beam module 2 includes: an LED light source 21, a light reflecting bowl 22 corresponding to the LED light source 21, a light blocking member 23 and a light guide 24; the LED light source 21 emits a first light L1, which is reflected by the reflector 22 to obtain a second light L2 directed to the light blocking member 23, the second light L2 is blocked by the light blocking member 23 to form a third light L3 with a clear cut-off line, the third light L3 is reflected by the light guide 24 and then projected to the lower portion of the light exit lens 4, and the third light L3 exits a near-beam light through the near-beam lens 42.

The high beam module 3 is an LED high beam module, and specifically comprises: the LED illuminating device comprises an LED illuminating body 31 and a small lens 32 which collects light rays emitted by the LED illuminating body 31, the light rays emitted by the LED illuminating body 31 emit parallel high beam light rays after being acted by the small lens 32 and a high beam lens 41, and the LED illuminating body 31 is positioned on or near the combined focus of the small lens 32 and the high beam lens 41.

Specifically, this embodiment the light barrier 23 is the arc light barrier, its structure is similar with the arc light barrier that switches by solenoid valve control commonly used on the market, the difference only lies in the light barrier be fixed, not through solenoid valve control, the shape setting and the passing light type of light barrier match. Further, as shown in fig. 4, the arc-shaped light blocking sheet includes a first arc segment 131 and a second arc segment 132, and the first arc segment 131 and the second arc segment 132 have different heights. The light barrier 23 is arranged in the focal plane of the low beam lens 42.

Specifically, the light guide 24 of the present embodiment is an opaque reflector, more specifically a plastic sheet plated with a metal layer, which is light and inexpensive. The opaque reflector plate can also be a metal plate or an opaque glass plate plated with a reflective layer.

In the present embodiment, the low beam module 2 is disposed below the heat dissipating substrate 1, the high beam module 3 is disposed above the heat dissipating substrate 1, the low beam module 2 emits low beam light from the low beam lens 42 at the lower portion of the light emitting lens 4, and the high beam module 3 emits high beam light from the high beam lens 41 at the upper portion of the light emitting lens 4. The low-beam module 2 uses the light blocking member 23, the first light L1 emitted from the LED light source 21 is reflected by the light reflecting bowl 22 to obtain the second light L2 directed to the light blocking member 23, because the light blocking member 23 has a light blocking effect, part of the second light is blocked by the light blocking member 23, the remaining second light which is not blocked forms the third light L3 with a clear cut-off line, the third light L3 is reflected by the light guide member 24, the reflected light is projected to the lower portion of the light emitting lens 4, namely, to the low-beam lens 42, and the low-beam lens 42 refracts the reflected light to obtain the low-beam light with a clear cut-off line. In the present embodiment, the light blocking sheet 23 is disposed in the low beam module 2, the light blocking sheet 23 only blocks the low beam light, and the light of the high beam module 3 directly exits without passing through the light blocking sheet 23, so that the light gathering capability and the high beam irradiation capability of the high beam module 3 are strong. In the present embodiment, the low beam module 2 can be disposed below the heat dissipation substrate 1 by disposing the light guide 24, so as to greatly reduce the volume of the vehicle lamp, and make the vehicle lamp lighting system small in volume and compact in structure.

Example 2

As shown in fig. 2, the present embodiment discloses a vehicle lamp lighting system, in which the structures of a heat dissipation substrate 1, a low beam module 2, and a light exit lens 4 are the same as those of embodiment 1, and are not repeated herein, and the difference between embodiment 2 and embodiment 1 is different from that of a high beam module. As shown in fig. 2, the high beam module 3 of the present embodiment 2 is a transmission type laser module, and specifically includes: the laser device comprises a laser light source 33, a wavelength conversion element 34 and a first collimating lens 35, wherein the wavelength conversion element 34 and the first collimating lens 35 are sequentially arranged along the light path of the laser light source 33, laser light emitted by the laser light source 33 is converted into white light through the wavelength conversion element 34, and the white light is acted by the first collimating lens 35 and a high beam lens 41 to emit parallel high beam light. Further, a second collimating lens 36, a dodging unit 37 and a focusing lens 38 are sequentially disposed between the laser light source 33 and the wavelength conversion element 34 along the optical path of the laser light source. The second collimating lens 36 collimates the laser light emitted from the laser light source 33 into parallel light, the dodging unit 37 can homogenize the laser spot focused on the wavelength conversion element 34, the efficiency of the wavelength conversion material is improved, and the focusing lens 38 focuses the laser light on the wavelength conversion element 34.

The uniform light scattering unit 37 in this embodiment 2 is an optical diffusion sheet. The wavelength converting element 34 is a highly reflective material provided with a fluorescent layer. More specifically, in this embodiment 2, the laser light source 33 is a blue light emitting laser light source, and the wavelength conversion element 34 is a high reflective material provided with yellow phosphor.

Example 3

As shown in fig. 3, the present embodiment discloses a vehicle lamp illumination system, in which the structures of a heat dissipation substrate 1, a low beam module 2, and a light exit lens 4 are the same as those of embodiment 1, and are not repeated herein, and the difference between embodiment 3 and embodiment 1 is that the high beam module 3 is different. As shown in fig. 3, the high beam module 3 of the present embodiment 3 is a reflection type laser module, and specifically includes: the laser light source 33, the first light turning member 391, the second light turning member 392 and the wavelength conversion element 34 are sequentially arranged along the optical path of the laser light source 33, and a first collimating lens 35 is further arranged between the wavelength conversion element 34 and the second light turning member 392. The laser light emitted from the laser light source 33 is incident on the first light turning member 391, reflected by 391 and projected onto the second light turning member 392, and the second light turning member 392 projects the laser light onto the wavelength conversion element 34, the laser light is converted into white light under the action of the wavelength conversion element, and the white light is collected by the first collimating lens 35 and then emitted through the high beam lens 41 to emit high beam light. The first collimating lens 35 in this embodiment 3 not only plays a role of gathering white light, but also plays a role of focusing the laser light reflected from the second light turning member 393 on the wavelength converting element.

Further, similar to embodiment 2, a second collimating lens 36, a light homogenizing and scattering unit 37 and a focusing lens 38 are sequentially disposed between the laser light source 33 and the first light turning member 391 in this embodiment 3. The second collimating lens 36 can collimate the laser light emitted from the laser light source 33 into parallel light, the light homogenizing and scattering unit 37 can homogenize the laser light spot, and the focusing lens 38 focuses the laser light onto the first light turning member 391. The uniform light scattering unit 37 in this embodiment 3 is an optical diffusion sheet. The wavelength conversion element is a high-reflection material provided with a fluorescent layer. In this embodiment, the laser light source is a blue light emitting laser light source, and the wavelength conversion element is a high reflection material provided with yellow phosphor.

Further, the first light-turning element 391 and the second light-turning element 392 are mirrors.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A car light lighting system is characterized by comprising a heat dissipation substrate (1), a dipped beam module (2) arranged below the heat dissipation substrate (1), a high beam module (3) arranged above the heat dissipation substrate (1) and a light emitting lens (4) arranged behind the dipped beam module (2) and the high beam module (3) along a light path;

the low beam module (2) comprises: an LED light source (21), a light reflecting bowl (22) corresponding to the LED light source (21), a light blocking member (23) and a light guide member (24); the LED light source (21) emits a first light ray (L1), a second light ray (L2) emitted to the light blocking piece (23) is obtained after the first light ray is reflected by the light reflecting bowl (22), the second light ray (L2) is blocked by the light blocking piece (23) to form a third light ray (L3) with clear cut-off lines, the third light ray (L3) is reflected by the light guide piece (24) and then is projected to the lower part of the light emitting lens (4), and the light emitting and passing light rays are emitted through the light emitting lens (4);

the high beam module (3) emits high beam light through the upper part of the light emitting lens (4).

2. The vehicular lamp illumination system according to claim 1, wherein the light guide (24) is an opaque reflector sheet.

3. The vehicular lamp illumination system according to claim 2, wherein the opaque reflector sheet is a metal sheet, a metal-plated plastic sheet, or a reflective-plated opaque glass sheet.

4. The vehicular lamp illumination system according to claim 1, wherein the light-blocking member (23) is an arc-shaped light-blocking sheet.

5. The vehicle lamp lighting system according to claim 1, wherein the high beam module (3) comprises: the LED luminous body (31) and the small lens (32) for gathering the light emitted by the LED luminous body (31), and the light emitted by the LED luminous body (31) is acted by the small lens (32) and the light-emitting lens (4) to emit parallel high-beam light.

6. The vehicle lamp lighting system according to claim 1, wherein the high beam module (3) comprises: the laser light source (33), along wavelength conversion component (34) and first collimating lens (35) that the light path of laser light source (33) set gradually, the laser ray that laser light source (33) sent is converted into white light through wavelength conversion component (34), and the white light is through first collimating lens (35), emergent light lens (4) effect back emergent parallel distance light ray.

7. The vehicular lamp illumination system according to claim 6, wherein a second collimating lens (36), a dodging unit (37) and a focusing lens (38) are further provided between the laser light source (33) and the wavelength converting element (34) in this order along the optical path of the laser light source.

8. The vehicle lamp lighting system according to claim 1, wherein the high beam module (3) comprises: the laser light source (33), the first light turning piece (391), the second light turning piece (392), the first collimating lens (35) and the wavelength conversion element (34), the laser light emitted by the laser light source (33) is reflected by the first light turning piece (391) and the second light turning piece (392) in sequence, and then is focused on the wavelength conversion element (34) through the first collimating lens (35), the laser light is converted into white light after passing through the wavelength conversion element (34), and the white light emits parallel far-light rays after passing through the first collimating lens (35) and the light emitting lens (4).

9. The vehicular lamp illumination system according to claim 8, wherein a second collimating lens (36), a light homogenizing and scattering unit (37) and a focusing lens (38) are further provided between the laser light source (33) and the first light-turning member (391) in this order along the optical path of the laser light source.

10. The vehicular lamp illumination system according to any one of claims 1 to 9, wherein the light-exiting lens (4) comprises a high beam lens (41) located at an upper portion of the light-exiting lens (4) and a low beam lens (42) located at a lower portion of the light-exiting lens (4), and the light blocking member (23) is provided on a focal plane of the low beam lens (42).