Dual-light lens car lamp

Abstract

The utility model discloses a bifocal lens car lamp which comprises a first heat dissipation support, a first light source module and a second light source module which are arranged on the first heat dissipation support, shading devices corresponding to the first light source module and the second light source module, and a second heat dissipation support arranged in front of the first heat dissipation support along a light path. The second heat dissipation support is sequentially provided with a perpendicular incidence module and a lens along the light path, the LED lamp further comprises a perpendicular incidence heat dissipation module corresponding to the perpendicular incidence module, and the perpendicular incidence module does not shield light rays projected to the lens by the first light source module and the second light source module. The second heat dissipation support is arranged to be used for installing the perpendicular incidence module and the lens and guiding out heat generated by the perpendicular incidence module, the heat conduction channel area of the perpendicular incidence module is increased, meanwhile, the perpendicular incidence heat dissipation module is arranged to conduct independent heat dissipation on the perpendicular incidence module, and the heat dissipation efficiency is greatly improved. According to the utility model, a direct injection module mounting bracket and a mounting space do not need to be independently arranged, so that the production cost, the mounting complexity and the whole vehicle lamp volume are effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, specifically to a bi-xenon lens headlight. Background Technology

[0002] Existing bi-xenon projector headlights and existing LED integrated high and low beam automotive headlight structures, such as Figure 1 As shown, the headlight includes a low-beam LED light source module 1, a high-beam LED light source module 2, and a lens 4. The low-beam LED light source module 1 and the high-beam LED light source module 2 are positioned on the upper and lower sides of the same heat dissipation substrate, respectively emitting beams to form low-beam and high-beam light distributions. Due to the current limitations in LED light source brightness, there is often a problem of insufficient center illuminance. To address this, existing technologies have proposed adding a direct-beam module to supplement low-beam or high-beam lighting. However, installing the direct-beam module requires a separate mounting bracket and installation space, leading to an increase in the overall headlight size, cost, and structural complexity. Furthermore, the distance between the direct-beam module and the main heat dissipation bracket is relatively large, resulting in slow heat conduction and low heat dissipation efficiency. Utility Model Content

[0003] This invention addresses the problems existing in the prior art by providing a bi-xenon lens headlight that effectively improves the heat dissipation efficiency of the direct-beam module, reduces production costs and installation complexity, and reduces the overall size of the headlight.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A bi-xenon lens headlight includes a first heat dissipation bracket, a first light source module and a second light source module disposed on the first heat dissipation bracket, a light shielding device corresponding to the first light source module and the second light source module, and a second heat dissipation bracket disposed in front of the first heat dissipation bracket along the light path. The second heat dissipation bracket is provided with a direct-light module and a lens in sequence along the light path, and also includes a direct-light heat dissipation module corresponding to the direct-light module. The direct-light module does not block the light projected onto the lens by the first light source module and the second light source module.

[0006] Furthermore, the second heat dissipation bracket has an annular cross-section, and an installation platform is provided on its inner side, on which the direct-fire module is mounted.

[0007] Furthermore, the direct-light heat dissipation module includes several heat dissipation fins disposed on the side of the mounting platform opposite to the direct light source.

[0008] Furthermore, the direct heat dissipation module also includes a cooling fan corresponding to the heat dissipation fins. The first heat dissipation bracket is provided with a horizontal cover plate, the cooling fan is disposed on the horizontal cover plate, and the horizontal cover plate is provided with a plurality of ventilation openings corresponding to the cooling fan.

[0009] Furthermore, the lens is located at the end of the second heat dissipation bracket away from the first heat dissipation bracket, and adjustment space is provided around the lens and between it and the second heat dissipation bracket.

[0010] Furthermore, the second heat dissipation bracket is also provided with a positioning ring for fixing the lens at the end corresponding to the lens.

[0011] Furthermore, the first light source module and the second light source module are located on the same side of the first heat dissipation bracket, and the light-shielding device includes a first light-shielding member and a second light-shielding member corresponding one-to-one with the light outlets of the first light source module and the second light source module, as well as a drive motor connected to the first light-shielding member and the second light-shielding member.

[0012] Furthermore, the first light source module includes a first light source and a corresponding first reflector bowl, and the second light source module includes a second light source and a corresponding second reflector bowl. The first light source and the second light source are LED light sources or laser light sources, and the first reflector bowl and the second reflector bowl can be integrated into one unit or set separately.

[0013] Furthermore, the lens includes a first section for emitting light from the direct-light module, a second section for emitting light from the first light source module, and a third section for emitting light from the second light source module.

[0014] Furthermore, the direct-light module includes one or more direct-light sources and collimating lenses corresponding to each direct-light source. The multiple direct-light sources are controlled individually or simultaneously, and the first section of the lens includes small lenses corresponding to each direct-light source.

[0015] This utility model provides a bi-xenon lens headlight, including a first heat dissipation bracket, a first light source module and a second light source module disposed on the first heat dissipation bracket, a light-shielding device corresponding to the first and second light source modules, and a second heat dissipation bracket disposed in front of the first heat dissipation bracket along the light path. The second heat dissipation bracket is provided with a direct-beam module and a lens sequentially disposed along the light path, and also includes a direct-beam heat dissipation module corresponding to the direct-beam module. The direct-beam module does not block the light projected onto the lens by the first and second light source modules. By setting the second heat dissipation bracket in front of the first heat dissipation bracket along the light path to mount the direct-beam module and the lens and to dissipate the heat generated by the direct-beam module, the heat conduction channel area of ​​the direct-beam module is increased. Simultaneously, the direct-beam heat dissipation module provides independent heat dissipation, eliminating the need for sharing the first heat dissipation bracket with the first and second light source modules, thus greatly improving heat dissipation efficiency. Furthermore, by simultaneously mounting the direct-beam module and the lens on the second heat dissipation bracket, a separate mounting bracket and installation space for the direct-beam module are eliminated, effectively reducing production costs, installation complexity, and the overall size of the headlight. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an existing LED integrated high and low beam automotive headlight;

[0017] Figure 2 This is an overall structural diagram of a specific embodiment of the bi-xenon lens headlight of this utility model;

[0018] Figure 3 This is an exploded view of a specific embodiment of the bi-xenon lens headlight of this utility model;

[0019] Figure 4a , 4b This is a structural diagram of the second heat dissipation bracket in a specific embodiment of the bi-xenon lens headlight of this utility model.

[0020] Figure 1 As shown: 1. Low beam LED light source module; 2. High beam LED light source module; 4. Lens;

[0021] Figure 2-4bAs shown: 10, First heat dissipation bracket; 20, First light source module; 210, First light source; 220, Low beam reflector; 30, Second light source module; 310, Second light source; 320, High beam reflector; 40, Second heat dissipation bracket; 410, Mounting platform; 420, Positioning ring; 50, Direct beam module; 510, Direct beam light source; 520, Collimating lens; 60, Lens; 611, Small lens; 620, Second partition; 630, Third partition; 70, Direct beam module; 710, Heat dissipation fins; 720, Cooling fan; 80, Light shielding device; 810, First light shield; 820, Second light shield; 830, Drive motor; 90, Horizontal cover plate; 910, Ventilation opening; 101, Aluminum profile heat sink; 102, Fan. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings.

[0023] like Figure 2-3 As shown, this utility model provides a bi-xenon lens headlight, including: a first heat dissipation bracket 10, a first light source module 20 and a second light source module 30 disposed on the first heat dissipation bracket 10, a light shielding device 80 corresponding to the first light source module 20 and the second light source module 30, and a second heat dissipation bracket 40 disposed in front of the first heat dissipation bracket 10 along the light path. The second heat dissipation bracket 40 is provided with a direct-light module 50 and a lens 60 sequentially along the light path, and also includes a direct-light heat dissipation module 70 corresponding to the direct-light module 50. The direct-light module 50 does not block the light projected by the first light source module 20 and the second light source module 30 onto the lens 60. Specifically, the second heat dissipation bracket 40 is located in front of the first heat dissipation bracket 10 along the optical path. It is used to mount the direct-light module 50 and the lens 60 and to conduct heat generated by the direct-light module 70, increasing the heat conduction channel area of ​​the direct-light module 70. Simultaneously, the direct-light heat dissipation module 70 provides independent heat dissipation for the direct-light module 50, eliminating the need for it to share the first heat dissipation bracket 10 with the first light source module 20 and the second light source module 30, thus significantly improving heat dissipation efficiency. Furthermore, mounting the direct-light module 50 and the lens 60 simultaneously on the second heat dissipation bracket 40 eliminates the need for a separate mounting bracket and installation space for the direct-light module 50, effectively reducing production costs, installation complexity, and the overall size of the headlight.

[0024] In this embodiment, the second heat dissipation bracket 40 is made of aluminum material with high thermal conductivity, which conducts heat quickly and is lightweight. Of course, it can also be made of other thermally conductive materials.

[0025] In this application, the light emitted from the first light source module 20 and the second light source module 30 is distributed by the light-shielding device 40 and then transmitted through the internal space of the second heat dissipation bracket 40 to the lens 60 to form a low beam light distribution. The light emitted from the direct beam module 50 is directly projected onto the lens 60 to supplement the low beam or high beam. Compared with existing bi-xenon lens headlights, the first light source module 20 and the second light source module 30 used in this application can form a low beam light distribution with a larger lateral range, more uniform brightness distribution, and higher brightness, so as to see the conditions around the vehicle and the road surface more clearly and improve driving safety.

[0026] like Figure 4a As shown, the second heat dissipation bracket 40 has an annular cross-section, and an inner mounting platform 410 is provided therein. The direct-light module 50 is mounted on the mounting platform 410. The second heat dissipation bracket 40 is an annular bracket with openings at both ends. The inner side of the bracket has a mounting platform 410 for mounting the direct-light module 50. The annular structure of the second heat dissipation bracket 40 can greatly increase the heat conduction area and further improve the heat dissipation efficiency. The mounting platform 410 is a beam structure that extends vertically from the inner side of the second heat dissipation bracket 40, and this beam structure does not block the light transmitted from the first light source module 20 and the second light source module 30 to the lens 60.

[0027] like Figure 4b As shown, the direct-fire cooling module 70 includes several heat dissipation fins 710 disposed on the side of the mounting platform 410 opposite to the direct-fire module 50. These heat dissipation fins 710 are located behind the direct-fire module 50 and are used for rapid heat dissipation of the direct-fire module 50. Preferably, the direct-fire cooling module 70 also includes a cooling fan 720 corresponding to the heat dissipation fins 710. A horizontal cover plate 90 is provided on the first heat dissipation bracket 10, and the cooling fan 720 is disposed on the horizontal cover plate 90. The horizontal cover plate 90 has several ventilation openings 910 corresponding to the cooling fan 720. Therefore, in this embodiment, the direct-fire module 50 is cooled by a combination of the second heat dissipation bracket 40, the heat dissipation fins 710, and the cooling fan 720, which can improve the heat dissipation efficiency of the direct-fire module 50 by more than 50% compared to the installation method in the prior art.

[0028] Preferably, the lens 60 is located at the end of the second heat sink bracket 40 away from the first heat sink bracket 10, and adjustment space is provided around the lens 60 and between it and the second heat sink bracket 40. In this embodiment, the lens 60 is installed at the front end of the second heat sink bracket 40 along the optical path, and the two are fixed by adhesive. A gap is provided around the outer circumference of the lens 60 and between it and the second heat sink bracket 40. After the headlight assembly is completed, due to installation errors in the optical components, a dimming process is required. At this time, the relative position between the lens 60 and the second heat sink bracket 40 is adjusted to ensure that the emitted light spot meets the set light distribution requirements. After the dimming process is completed, the relative position between the lens 60 and the second heat sink bracket 40 is fixed. Compared to existing headlights that require adjustment of multiple components such as the light source module, direct beam module, and lens module during dimming, this solution only requires adjusting the position of the lens 60, eliminating the need to adjust multiple components, making the operation simpler and more efficient.

[0029] In this embodiment, the second heat dissipation bracket 40 is also provided with a positioning ring 420 for fixing the lens 60 at one end. After the position of the lens 60 is fixed, the positioning ring 420 is fitted onto the second heat dissipation bracket 40 from one end of the lens 60 to prevent the lens 60 from shifting relative to the second heat dissipation bracket 40 and to ensure assembly accuracy.

[0030] Preferably, the first light source module 20 and the second light source module 30 are located on the same side of the first heat dissipation bracket 10. The light-shielding device 80 includes a first light-shielding member 810 and a second light-shielding member 820 that correspond one-to-one with the light outlets of the first light source module 20 and the second light source module 30. That is, the first light-shielding member 810 corresponds to the light outlet of the low beam module 20, and the second light-shielding member 820 corresponds to the light outlet of the high beam module 30. In this embodiment, placing the low beam module 20 and the high beam module 30 on the same side of the first heat dissipation bracket 10 can increase the thickness of the heat dissipation substrate and improve the heat dissipation efficiency of the two light sources. The first light-shielding member 810 and the second light-shielding member 820 can be installed separately, or the light-shielding pieces therein can be connected as one unit and controlled by the same drive motor 830. The light-shielding pieces of the first light-shielding member 810 and the second light-shielding member 820 are both arc-shaped structures with a cutoff line shape on the upper edge that satisfies the low beam pattern.

[0031] Preferably, the first light source module 20 includes a first light source 210 and a corresponding first reflector 220, and the second light source module 30 includes a second light source 310 and a corresponding second reflector 320. The first light source 210 and the second light source 310 can be LED light sources or laser light sources, and the first reflector 220 can be integrated or separately configured. The first light source 210 and the second light source 220 can be LED light sources or laser light sources, and the first light source 210 and the second light source 220 can be light sources of the same or different specifications. Figure 3 As shown, in this embodiment, the first light source 210 and the second light source 310 are LED light sources of the same specifications, and the two reflector bowls 220 are connected as one unit. Of course, the first light source 210 and the second light source 310 can also be laser light sources, that is, a combination of semiconductor laser and phosphor sheet, wherein the phosphor sheet is located at the focal point of the corresponding reflector bowl, and the reflector bowl is provided with a through hole for transmitting the laser beam emitted by the semiconductor laser.

[0032] Preferably, the lens 60 includes a first section for emitting light from the direct-light module 50, a second section 620 for emitting light from the first light source module 20, and a third section 630 for emitting light from the second light source module 30. When the first light source module 20 and the second light source module 30 are located on the same side of the first heat dissipation bracket 10, the second section and the third section 630 of the lens 60 are arranged along the width direction of the headlight, and the dimensions of the second section and the third section 630 can be the same or different, and can be designed according to the light beams emitted by the first light source module 20 and the second light source module 30.

[0033] Preferably, the direct light module 50 includes one or more direct light sources 510. When multiple direct light sources 510 are provided, the multiple direct light sources 510 are controlled individually or simultaneously. The first section of the lens 60 includes small lenses 611 that correspond one-to-one with each of the direct light sources 510. In one case, there is one direct light source 510 and one small lens 611 in the first section, corresponding to the position of the direct light source 510. In low beam or high beam mode, the direct light source 510 is turned on for supplementary lighting as needed. Another scenario involves two direct light sources 510, each controlled independently. In this case, two small lenses are also provided in the first section, corresponding one-to-one with the direct light sources 510. The direct light sources 510 use either LED or laser light sources, and the two sources may use the same or different light sources. In low beam mode, one of the direct light sources 510 is turned on for supplemental lighting; in high beam mode, the other direct light source 510 is turned on for supplemental lighting. Alternatively, the two direct light sources 510 can be connected in series on the same circuit and controlled by the same switch. When supplemental lighting is needed, such as in high beam mode, both direct light sources 510 are turned on simultaneously via the switch to increase the brightness of the central light spot. Yet another scenario involves three direct light sources 510, and three corresponding small lenses 611 are also provided, each corresponding one-to-one with the direct light source 510. Figure 3As shown, the direct light source 510 can be an LED light source or a laser light source, and the brightness and divergence angle of the three direct light sources 510 can be the same or different. For example, the direct light source 510 in the middle and the direct light sources 510 on both sides can use different light sources. In the near beam state, the direct light source 510 in the middle is turned on for supplementary lighting, and in the high beam state, the direct light sources 510 on both sides are turned on for supplementary lighting. All three direct light sources 510 can also be turned on simultaneously for supplementary lighting in either the near beam or high beam state. When the light-emitting area or divergence angle of the direct light source 510 is different, the sizes of the corresponding multiple small lenses 611 can also be different. The above-mentioned supplementary lighting methods are only examples; of course, other methods can also be used to control the opening and closing of multiple direct light sources 510 to achieve the desired effect.

[0034] Preferably, the direct-light module 50 further includes a collimating lens 520 disposed between the direct-light source 510 and the lens 60. The collimating lens 520 corresponds one-to-one with the direct-light source 510 and is used to collimate the light beam emitted from the direct-light source 510, achieving a focusing effect and improving the brightness of the supplementary light spot. When multiple direct-light sources 510 are provided, multiple collimating lenses 520 are also provided; they can be fixed individually or integrally formed, such as... Figure 3 As shown.

[0035] Preferably, the bi-xenon lens headlight further includes a heat dissipation module disposed on the side of the first heat dissipation bracket 10 away from the second heat dissipation bracket 40. The heat dissipation module includes an aluminum profile heat sink 101 and a fan 102 for dissipating heat from the first light source 210 and the second light source 310.

[0036] Although the embodiments of this utility model have been described in the specification, these embodiments are merely illustrative and should not limit the scope of protection of this utility model. Various omissions, substitutions, and modifications made without departing from the spirit of this utility model should be included within the scope of protection of this utility model.

Claims

1. A bi-xenon lens headlight, characterized in that, include: A first heat dissipation bracket, a first light source module and a second light source module disposed on the first heat dissipation bracket, a light shielding device corresponding to the light output port of the first light source module and the second light source module, and a second heat dissipation bracket disposed in front of the first heat dissipation bracket along the light path. The second heat dissipation bracket is provided with a direct-light module and a lens in sequence along the light path, and also includes a direct-light heat dissipation module corresponding to the direct-light module. The direct-light module does not block the light projected by the first light source module and the second light source module onto the lens.

2. The bi-xenon lens headlight according to claim 1, characterized in that, The second heat dissipation bracket has an annular cross-section and an inner mounting platform, on which the direct-fire module is mounted.

3. The bi-xenon lens headlight according to claim 2, characterized in that, The direct-light heat dissipation module includes several heat dissipation fins disposed on the side of the mounting platform opposite to the direct light source.

4. The bi-xenon lens headlight according to claim 3, characterized in that, The direct heat dissipation module also includes a heat dissipation fan corresponding to the heat dissipation fins. The first heat dissipation bracket is provided with a horizontal cover plate, the heat dissipation fan is disposed on the horizontal cover plate, and the horizontal cover plate is provided with a plurality of ventilation openings corresponding to the heat dissipation fan.

5. The bi-xenon lens headlight according to claim 1, characterized in that, The lens is located at the end of the second heat dissipation bracket away from the first heat dissipation bracket, and there is an adjustment space between the outer periphery of the lens and the second heat dissipation bracket.

6. The bi-xenon lens headlight according to claim 1, characterized in that, The second heat dissipation bracket is also provided with a positioning ring for fixing the lens at the end corresponding to the lens.

7. The bi-xenon lens headlight according to claim 1, characterized in that, The first light source module and the second light source module are located on the same side of the first heat dissipation bracket. The light-shielding device includes a first light-shielding member and a second light-shielding member that correspond one-to-one with the light outlets of the first light source module and the second light source module, as well as a drive motor connected to the first light-shielding member and the second light-shielding member.

8. The bi-xenon lens headlight according to claim 1, characterized in that, The first light source module includes a first light source and a corresponding first reflector bowl, and the second light source module includes a second light source and a corresponding second reflector bowl. The first light source and the second light source are LED light sources or laser light sources, and the first reflector bowl and the second reflector bowl can be integrated into one unit or set separately.

9. The bi-xenon lens headlight according to claim 1, characterized in that, The lens includes a first section for emitting light from a direct-light module, a second section for emitting light from a first light source module, and a third section for emitting light from a second light source module.

10. The bi-xenon lens headlight according to claim 9, characterized in that, The direct-light module includes one or more direct-light sources and collimating lenses corresponding to each direct-light source. The multiple direct-light sources are controlled individually or simultaneously. The first section of the lens includes small lenses corresponding to each direct-light source.

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