CN215061809U - Take transmission type laser module's car light - Google Patents

Abstract

The utility model discloses a take car light of transmission type laser module, including the base plate, set up passing beam module, transmission type laser module, light-emitting lens on the base plate and set up the light structure that is in the light between passing beam module and light-emitting lens, passing beam module include the LED light source and with the reflection configuration that the LED light source matches, transmission type laser module sets up between reflection configuration and light-emitting lens and transmission type laser module is located the reflection configuration outside, and the light-emitting direction of the laser instrument in the transmission type laser module is different with the light-emitting direction of LED light source after the reflection configuration reflection, and the light-emitting lens is including the far-reaching beam light-emitting lens of collecting transmission type laser module and output far-reaching beam light and the passing beam light-emitting lens of collecting passing beam module and output near-reaching beam light. Laser module mounted position need not the anti-light cup structure of excision part in the car light structure, and light is collected effectually, and light-emitting illumination improves about 15%, and the light shape effect is good, and car light compact structure, whole small.

Description

Take transmission type laser module's car light

Technical Field

The utility model relates to the field of lighting technology, more specifically relates to a take transmission type laser module's car light.

Background

In present car light head-light's market, more and more car head-light loads laser high beam module, the purpose is in order to increase the illumination intensity of high beam and the distance that the extension shines for when the road conditions at night or at complicacy down, can strengthen driver's visibility, make the driving safer. However, load the head-light product of laser high beam at present, the overwhelming majority is through cutting off some reflector cup structures, just can load whole high beam module and get into in the whole lamp, and this not only can influence the pleasing to the eye of product, more can sacrifice the illuminance of low beam and the light type of light-emitting. Also there are a small part car light product to place laser module in anti-light cup the place ahead, nevertheless because laser module length is great, can lead to the volume of whole car light to be big partially, in addition, the car light volume is big partially also not to be favorable to the repacking and the general adaptability of car light.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming above-mentioned prior art's at least one defect, providing a take transmission type laser module's car light, car light structure laser module mounted position need not the anti-light cup structure of excision part, and the short-distance beam light source is collected effectually, and light-emitting illumination intensity can improve about 15%, and the light shape effect is good, and car light compact structure, whole small.

The utility model adopts the technical proposal that:

a car lamp with transmission type laser module comprises a substrate, a near-beam module arranged on the substrate, a transmission type laser module, a light-emitting lens and a light-blocking structure arranged between the near-beam module and the light-emitting lens, the passing beam module includes the LED light source and with the reflection configuration that the LED light source matches, transmission type laser module sets up between reflection configuration and light-emitting lens and transmission type laser module is located the reflection configuration outside, and the light-emitting direction of the laser instrument among the transmission type laser module is different with the light-emitting direction of LED light source after the reflection configuration reflection, and the light-emitting lens is including the far-reaching beam light-emitting lens of collecting the light beam of transmission type laser module and outputting far-reaching beam light and the passing beam light-emitting lens of collecting the light beam of passing beam module and outputting passing beam light, is equipped with the light guide piece that is used for guiding the laser that the laser instrument sent to far-reaching light-emitting lens direction among the transmission type laser module.

This technical scheme will be used for the transmission type laser module of distance light illumination to set up in the reflection configuration outside of the passing beam module that is used for the passing beam illumination, need not occupy the space of passing beam module, can avoid needing the reflection configuration of excision part passing beam module because of the space restriction problem to can avoid because of the reduction of the passing beam collection efficiency that reflection configuration's excision leads to and passing beam illuminance weaken, illuminance can improve 15%, and does not influence the light type effect of whole light-emitting, the light shape effect is good. Meanwhile, the technical scheme sets the light emitting direction of the laser in the transmission type laser module to be different from the light emitting direction of the LED light source after being reflected by the reflecting structure, and reduces the length of the transmission type laser module (the length refers to the length in the direction of the optical axis of the near light emitting lens or in the direction parallel to the optical axis) through adjusting the light emitting direction of the laser, so that the length of the whole car lamp is the same as the length of the car lamp structure of the existing laser module occupying part of the space of the near light module, and thus, the compact structure of the car lamp is ensured, the universal adaptability is realized, and the car lamp has wide application value in the aftermarket of cars. Specifically, the LED light source of the near-beam module emits light, the light is reflected by a reflection structure matched with the LED light source and then emitted to the direction of the light-emitting lens, wherein part of the light is shielded by the light-shielding structure, and the light which is not shielded is emitted through the near-beam light-emitting lens to form a near-beam light shape with clear cut-off lines; the laser of the transmission type laser module emits laser, the laser light path is changed after the action of the light guide piece, the laser is guided to the direction of the high beam light-emitting lens under the action of the light guide piece, and finally the high beam light shape with high illumination intensity and long irradiation distance is emitted.

Furthermore, the transmission type laser module comprises a laser, a light guide piece arranged in the light emitting direction of the laser, a wavelength conversion unit and a first lens, wherein laser emitted by the laser is guided by the light guide piece to emit to the wavelength conversion unit, is converted into white light by the wavelength conversion unit, and then is collected and output high beam light by the first lens and the high beam light emitting lens. In this technical scheme, the laser of laser instrument transmission can be shot to the light guide on, the light guide makes laser light path change, and laser shot is to wavelength conversion unit and is converted into white light through wavelength conversion unit, and the white that produces behind the wavelength conversion unit is the type of dispersing after the laser projects, and first lens can be collected the white light of type of dispersing, improves the light utilization ratio, and the white light is through far-reaching light-emitting lens outgoing far-reaching light ray again. In particular, the wavelength conversion unit may be a phosphor coated element, including but not limited to a phosphor coated glass sheet. As one example, when the laser is a blue laser, the wavelength conversion unit is a yellow phosphor coated glass sheet.

Further, the light guide is a mirror.

Further, a second lens is arranged between the laser and the light guide along the optical path of the laser. The second lens can further gather the laser that the laser instrument sent, obtains the laser of spotlight type.

Furthermore, the second lens is a condensing lens with the focal length of 7-9 cm. The technical scheme selects the light receiving lens of 7-9 cm, so that the length of the laser module is 10-15 mm smaller than that of the existing transmission type laser module on the market.

Further, a uniform light diffusion sheet is arranged between the second lens and the wavelength conversion unit. The dodging diffusion sheet can homogenize laser spots focused on the wavelength conversion element and improve the efficiency of the wavelength conversion unit. More specifically, the light homogenizing diffuser may be positioned between the second lens and the light guide, and may also be positioned between the light guide and the wavelength converting unit.

Furthermore, the length of the transmission type laser module in the direction of the optical axis of the high beam emergent lens or in the direction parallel to the optical axis is 23-24 cm.

Furthermore, the light emitting direction of the laser in the transmission type laser module is perpendicular to the light emitting direction of the LED light source after being reflected by the reflection structure. At this time, the light guide is a mirror inclined at an angle of 45 degrees.

Further, the reflecting structure is a reflecting cup or a reflecting bowl.

Further, the light blocking structure is an arc-shaped light blocking sheet. The light blocking structure shape that this application used can be for the arc light blocking piece structure that is used commonly on the market and is switched by solenoid valve control, the difference lies in this application the light blocking piece be fixed, not through solenoid valve control. The structure of the arc light blocking sheet structure can be smaller than that of the arc light blocking sheet structure on the market, but the overall appearance is similar. 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.

Furthermore, transmission type laser module still includes the laser module shell, and the laser instrument welding is equipped with dustproof silica gel circle before laser module shell and the copper on the copper. The life-span of laser instrument receives the influence of all ring edge borders great, sets up dustproof silica gel circle and can very effectually avoid the dust to get into laser module, effectively prolongs the life of laser instrument.

Further, the vehicle lamp with the transmission type laser module also comprises a heat dissipation structure connected with the transmission type laser module. Specifically, the heat dissipation structure may be a heat pipe. Further, the heat conducting pipe may be connected to a heat dissipating metal sheet. The heat dissipation structure can effectively prolong the service life of the transmission type laser module.

Furthermore, the number of the transmission type laser modules is 1-3. According to the technical scheme, the number of the transmission type laser modules can be 1, 2 or 3, when the number of the transmission type laser modules is 1, the low beam module is arranged below the transmission type laser modules, and the transmission type laser modules are positioned above the low beam module; when the number of the transmission type laser modules is 2, the low beam module is arranged below, and the two transmission type laser modules are positioned obliquely above or at two sides of the low beam module and are symmetrically arranged; when the number of the transmission type laser modules is 3, 1 transmission type laser module is positioned above the low beam module, and the other two transmission type laser modules are positioned above or at two sides of the low beam module.

Further, the car lamp with the transmission type laser module further comprises a heat dissipation fan, and the heat dissipation fan is located on one side, back to the light-emitting lens, of the low beam module and the transmission type laser module.

Compared with the prior art, the beneficial effects of the utility model are that: transmission type laser module need not to occupy the space of passing light module, passing light source collection is effectual, light-emitting illuminance is high, and the length of whole car light is the same with the car light structure length that current laser module occupied passing light module part space, the illuminance of passing light illumination has both been improved, illuminance can improve 15%, and does not influence the light type effect of whole lamp light-emitting, the light shape effect is good, the compactness and the car light length of having guaranteed the car light structure again are unchangeable, general adaptability has, market has extensive using value after the car.

Drawings

FIG. 1 is a schematic diagram of a prior art vehicle lamp construction.

FIG. 2 is a schematic diagram of another perspective view of a prior art vehicular lamp structure.

Fig. 3 is a schematic diagram of the light path of the structure of the prior art vehicle lamp.

FIG. 4 is a schematic view of the structure of the vehicular lamp according to embodiment 1.

Fig. 5 is a schematic diagram of the optical path of the vehicular lamp according to embodiment 1.

FIG. 6 is a schematic view showing the structure of a vehicular lamp with a laser module housing according to embodiment 1.

FIG. 7 is a schematic view of a light-exiting lens structure of the vehicular lamp according to embodiment 2.

FIG. 8 is a schematic view of a light-exiting lens structure of a vehicular lamp according to embodiment 3.

Description of reference numerals: 1. a substrate; 2. a short-distance light module; 21. an LED light source; 22; a reflective structure; a 221 notch; 3. a transmission type laser module; 31. a laser; 32. a light-guide; 33. a wavelength conversion unit; 34. a first lens 35 and a second lens; 36. a uniform light diffusion sheet; 37. a laser module housing; 38. a dustproof silica gel ring; 39. a copper plate; 4. a light-emitting lens; 41. a near light emergent lens; 42. a high beam light-emitting lens; 5. a light blocking structure; 7. laser module.

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.

Most of the existing vehicle lamp structures including a laser module are as shown in fig. 1, fig. 2, and fig. 3 (fig. 1 and fig. 2 are schematic diagrams of structures at different angles, and a light path of the vehicle lamp structure is a schematic diagram) and include a low beam module 2, a laser module 7, and a light-emitting lens 4. In order not to change the length of the vehicle lamp (the length referred to here refers to the transverse direction according to the view shown in fig. 1), the laser module needs to occupy a part of the space of the low beam module, i.e. a part of the side of the low beam module where the opening of the reflector cup top is oriented is cut off, i.e. there is an opening 221 on the reflector cup top for placing a part of the laser module 7. Under the condition of the reflecting cups with the same size, the loss illumination of the reflecting cup with the notch is about 15%, and the light emitting shape is lost, so that the light type effect is not good.

Example 1

As shown in fig. 4, 5 and 6, a vehicle lamp with a transmission type laser module comprises a substrate 1, a low beam module 2 disposed on the substrate, a transmission type laser module 3, a light emitting lens 4 and a light blocking structure 5 disposed between the low beam module 2 and the light emitting lens 4, wherein the low beam module 2 comprises an LED light source 21 and a reflection structure 22 matched with the LED light source 21, the transmission type laser module 3 is disposed between the reflection structure 22 and the light emitting lens 3, the transmission type laser module 3 is disposed outside the reflection structure 22, the light emitting direction of a laser 31 in the transmission type laser module 3 is perpendicular to the light emitting direction of the LED light source 21 after being reflected by the reflection structure 22, the light emitting lens 4 comprises a high beam light emitting lens 42 for collecting the light beam of the transmission type laser module 3 and outputting high beam light and a low beam light emitting lens 41 for collecting the light beam of the low beam module 2 and outputting low beam light, the transmission type laser module 3 includes a laser 31, a light guide 32 disposed in the light emitting direction of the laser 31, a wavelength conversion unit 33, and a first lens 34, wherein laser light emitted from the laser 31 is guided by the light guide 32 to emit to the wavelength conversion unit 33, converted into white light by the wavelength conversion unit 33, and then collected and output high beam light by the first lens 34 and the high beam light emitting lens 42.

The working principle or process of the vehicle lamp with the transmission type laser module is as follows: the LED light source 21 of the low-beam module 2 emits light, the light is reflected by the reflection structure 22 matched with the LED light source 21 and then emitted to the direction of the light-emitting lens 4, wherein part of the light is shielded by the light-shielding structure 5, and the light which is not shielded is emitted through the low-beam light-emitting lens 41 to form a low-beam light shape with clear cut-off lines; the laser 31 of the transmission type laser module 3 emits laser, the laser path is changed after the laser is acted by the light guide 32, the laser irradiates the wavelength conversion unit 33 and is converted into white light by the wavelength conversion unit 33, the white light generated after the laser is projected to the wavelength conversion unit 33 is divergent, the first lens 34 can collect the divergent white light, the light utilization rate is improved, and the white light emits far light through the far light emitting lens 42.

More specifically, in the present embodiment, a second lens 35 and a dodging sheet 36 are further disposed between the laser 31 and the light guide 32 along the optical path of the laser. The second lens 35 can further converge the laser light emitted from the laser 31 to obtain a condensing laser light. The dodging diffusion sheet can homogenize laser spots focused on the wavelength conversion element and improve the efficiency of the wavelength conversion unit. It is to be noted that a dodging sheet 36 may also be provided between the light guide 32 and the wavelength converting unit 33.

Further, the length L of the transmission type laser module in the optical axis direction of the high beam emergent lens 42 or in the direction parallel to the optical axis is 23-24 cm.

Specifically, in the transmissive laser module 3 of this embodiment, the laser 31 is a blue laser, the wavelength conversion unit 33 is a glass plate coated with a yellow fluorescent material, the light guide is a mirror, and the second lens is a condensing lens with a focal length of 7-9 cm.

Specifically, the reflection structure 22 in the low beam module 2 is a reflection cup or a reflection bowl, and the LED light source 21 may emit light for a single LED chip or a plurality of LEDs.

Specifically, the light blocking structure 5 is an arc-shaped light blocking sheet, and the shape of the used light blocking structure can be an arc-shaped light blocking sheet structure which is commonly used in the market and is controlled and switched by an electromagnetic valve, and the difference lies in that the light blocking sheet 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.

Further, the transmission type laser module 3 further comprises a laser module shell 37, the laser is welded on the copper plate 39, and a dustproof silica gel ring 38 is arranged in front of the laser module shell 37 and the copper plate 39. The life-span of laser instrument receives the influence of all ring edge borders great, sets up dustproof silica gel circle and can very effectually avoid the dust to get into laser module, effectively prolongs the life of laser instrument.

Further, the car light with the transmission type laser module of the embodiment further comprises a heat dissipation fan, wherein the heat dissipation fan is positioned on one side of the low beam module and one side of the transmission type laser module, which are back to the light-emitting lens.

The transmission type laser module 3 for high beam illumination is arranged outside the reflection structure 22 of the low beam module 2 for low beam illumination, the space of the low beam module 2 is not required to be occupied, the reflection structure 22 of the low beam module 2 can be prevented from being cut off due to the space limitation problem, and therefore the reduction of the low beam collection efficiency and the reduction of the low beam illumination caused by the cutting off of the reflection structure 22 can be avoided. Meanwhile, the light emitting direction of the laser 31 in the transmission type laser module 3 is set to be perpendicular to the light emitting direction of the LED light source 21 after being reflected by the reflection structure 22, and the length of the transmission type laser module 3 (the length here refers to the optical axis direction of the passing light emitting lens or the length parallel to the optical axis direction) is reduced by adjusting the light emitting direction of the laser 31, so that the length of the whole car light can be the same as the length of the car light structure of the existing laser module occupying part of the space of the passing light module.

Example 2

A vehicle lamp with a transmission type laser module, the structure and the working principle of the vehicle lamp are basically the same as those of embodiment 1, and the differences are that: in this embodiment 2, the number of the transmission type laser modules is two, the low beam module is located below, the two transmission type laser modules are located obliquely above the low beam module and symmetrically arranged, and the number of the high beam light-emitting lenses is also two; in example 1, one transmissive laser module is used, and one high beam exit lens is used. In this embodiment 2, 2 transmissive laser modules are used, so that the irradiation range is wider and the brightness is larger. The schematic diagram of the exit lens of the vehicular lamp with the transmission type laser module according to this embodiment 2 is shown in fig. 7.

Example 3

The structure and the working principle of the vehicle lamp with the transmission type laser module are basically the same as those of the embodiments 1 and 2, and the differences are that: in this embodiment 3, the number of the transmission type laser modules is three, the low beam module is located below, 1 transmission type laser module is located above the low beam module, the other two transmission type laser modules are located obliquely above or at two sides of the low beam module, the number of the high beam light-emitting lenses is also three, and the positions of the high beam light-emitting lenses are matched with the transmission type laser modules; in example 1, one transmissive laser module is used, and one high beam exit lens is used. The vehicular lamp with the transmission type laser module according to embodiment 3 uses three transmission type laser modules, and has a wider irradiation range and larger brightness compared with one or two transmission type laser modules. The schematic diagram of the exit lens of the vehicular lamp with the transmission type laser module in this embodiment 3 is shown in fig. 8.

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 (10)

1. A car lamp with transmission type laser module comprises a substrate, a near-beam module arranged on the substrate, a transmission type laser module, a light-emitting lens and a light-blocking structure arranged between the near-beam module and the light-emitting lens, the low beam module comprises an LED light source and a reflecting structure matched with the LED light source, the LED light source module is characterized in that the transmission type laser module is arranged between the reflection structure and the light emitting lens, the transmission type laser module is located outside the reflection structure, the light emitting direction of a laser in the transmission type laser module is different from the light emitting direction of an LED light source after being reflected by the reflection structure, the light emitting lens comprises a high beam light emitting lens for collecting a light beam of the transmission type laser module and outputting a high beam light and a low beam light emitting lens for collecting a light beam of the low beam module and outputting a low beam light, and a light guide piece for guiding laser emitted by the laser to the direction of the high beam light emitting lens is arranged in the transmission type laser module.

2. The vehicular lamp with the transmissive laser module according to claim 1, wherein the transmissive laser module comprises a laser, a light guide disposed in a light exit direction of the laser, a wavelength conversion unit, and a first lens, and laser light emitted from the laser is guided by the light guide to the wavelength conversion unit, converted into white light by the wavelength conversion unit, and then collected by the first lens and the high beam exit lens to output high beam light.

3. The vehicular lamp with the transmissive laser module according to claim 2, wherein a second lens is further provided between the laser and the light guide along the optical path of the laser.

4. The vehicular lamp with the transmissive laser module according to claim 3, wherein the second lens is a condensing lens having a focal length of 7 to 9 cm.

5. The vehicular lamp with the transmission-type laser module according to claim 3, wherein a light homogenizing/diffusing sheet is provided between the second lens and the wavelength converting unit.

6. The vehicular lamp with the transmission-type laser module according to claim 1, wherein the transmission-type laser module has a length of 23 to 24cm in a direction of an optical axis of the high beam exit lens or in a direction parallel to the optical axis.

7. The vehicular lamp with the transmissive laser module as claimed in claim 1, wherein the light emitting direction of the laser in the transmissive laser module is perpendicular to the light emitting direction of the LED light source after being reflected by the reflective structure.

8. The vehicular lamp with the transmission-type laser module according to claim 1, wherein the transmission-type laser module further comprises a laser module housing, the laser is welded to the copper plate, and a dust-proof silicone ring is provided in front of the laser module housing and the copper plate.

9. The vehicular lamp with the transmission-type laser module according to any one of claims 1 to 8, wherein the vehicular lamp with the transmission-type laser module further comprises a heat dissipating structure connected to the transmission-type laser module.

10. The vehicular lamp with the transmission-type laser module according to any one of claims 1 to 8, wherein the number of the transmission-type laser modules is 1 to 3.

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