Dual-light lens car lamp

Abstract

The utility model provides a double-light-lens car lamp which comprises a first heat dissipation support, a low beam module, a high beam module, a shading device and a second heat dissipation support. The low beam module and the high beam module are arranged on the same side of the first heat dissipation support. The shading device corresponds to a light outlet of the low beam module and a light outlet of the high beam module. The second heat dissipation support is arranged in front of the first heat dissipation support along a light path. The high-beam module comprises a high-beam light source and a high-beam reflection cup, the high-beam reflection cup comprises an elliptical surface and a spherical surface which are sequentially arranged in the direction from the vertex to the light outlet, one focus of the elliptical surface coincides with the sphere center of the spherical surface, and the other focus of the elliptical surface coincides with the sphere center of the spherical surface. The position of the high-beam light source corresponds to the center of sphere of the spherical surface, one part of light emitted by the high-beam light source is reflected by the elliptical surface and then is emitted to form high-beam light, and the other part of light is reflected by the spherical surface and then returns to the light source surface of the high-beam light source for re-excitation. By arranging the high-beam reflection cup comprising the elliptical surface and the spherical surface, the luminance of the high-beam light source can be improved, the distance between the high-beam light source and the lens unit is reduced while the size of the high-beam reflection cup is not reduced, and the overall length of the automobile lamp is reduced while the reliability of the automobile lamp is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile lighting, in particular to a double light lens car light. BACKGROUND

[0002] The existing double light lens car light existing LED far and near light integration automobile headlight structure as shown in the figure, including low light LED light source module 1, far light LED light source module 2 and lens 4.Low light LED light source module 1 and far light LED light source module 2 are arranged on the upper and lower sides of the same heat dissipation base plate, and the positions of low light LED light source module 1 and far light LED light source module 2 on the two sides of the heat dissipation base plate are basically coincident or very close. Figure 1 Due to the limitation of the current LED light source brightness, there is usually a problem that the center illumination is obviously insufficient, and in the prior art, a low light module and a far light module are arranged on the same side of the heat dissipation base plate, thereby increasing the thickness of the heat dissipation base plate and improving the heat dissipation efficiency of the low light module and the far light module. SUMMARY

[0003] The utility model provides a double light lens car light that improves the size of the far light reflector cup and reduces the distance between the far light source and the lens unit, ensures the reliability of the car light and reduces the overall length of the car light.

[0004] To solve the above technical problems, the technical scheme of the utility model is:

[0005] A double light lens car light, comprising: a first heat dissipation bracket, a low light module and a far light module arranged on the same side of the first heat dissipation bracket, a light shielding device corresponding to the light outlets of the low light module and the far light module, a second heat dissipation bracket arranged in front of the first heat dissipation bracket along the light path, and a lens unit arranged at the end of the second heat dissipation bracket away from the first heat dissipation bracket, the far light module comprising a far light source and a far light reflector cup, the far light reflector cup comprising an elliptical surface and a spherical surface arranged in sequence along the direction from the apex to the light outlet, one of the foci of the elliptical surface coincides with the spherical center of the spherical surface, the position of the far light source corresponds to the spherical center of the spherical surface, and part of the light emitted by the far light source is reflected by the elliptical surface to form far light, and another part of the light is reflected by the spherical surface to return to the light source surface of the far light source for reexcitation.

[0006] Further, the included angle formed by the elliptical surface and the light outlet surface of the far light source is not greater than 130 degrees.

[0007] Further, the angle between the light beam reflected by the elliptical surface and the other focus point of the elliptical surface different from the center of the sphere of the sphere is not greater than 45 degrees.

[0008] Further, the distance between the high beam light source and the lens unit is the same as the distance between the low beam light source and the lens unit.

[0009] Further, the lens unit includes a first lens for emitting light of the low beam module and a second lens for emitting light of the high beam module.

[0010] Further, it further includes a direct module installed on the second heat dissipation support and a direct heat dissipation module corresponding to the direct module, the direct module does not block the light of the low beam module and the high beam module projected to the lens unit, and the lens unit further includes a third lens for emitting light of the direct module.

[0011] Further, the cross section of the second heat dissipation support is annular, and the inner side is provided with a mounting platform, and the direct module is arranged on the mounting platform.

[0012] Further, the direct heat dissipation module includes a plurality of heat dissipation fins arranged on the side of the mounting platform different from the direct light source and a heat dissipation fan corresponding to the heat dissipation fins, the first heat dissipation support is provided with a horizontal cover plate, the heat dissipation fan is arranged on the horizontal cover plate, and the horizontal cover plate is provided with a plurality of ventilation openings corresponding to the heat dissipation fan.

[0013] Further, the direct module includes one direct light source or a plurality of direct light sources and a collimating lens corresponding to each direct light source, the plurality of direct light sources are controlled separately, and the number of the third lens is the same as the number of the direct light source and corresponds to each direct light source.

[0014] Further, an adjusting space is arranged between the outer periphery of the lens unit and the second heat dissipation support.

[0015] The utility model provides a kind of double light lens car light, comprising: first radiating support, low beam module and high beam module being located in the same side of the first radiating support, light shielding device corresponding with the light outlet of the low beam module and high beam module, second radiating support being located in the front of the first radiating support along light path, and lens unit being located in the end of the second radiating support away from the first radiating support, the high beam module includes high beam light source and high beam reflector cup, the high beam reflector cup includes elliptical surface and spherical surface sequentially arranged along the direction of apex to light outlet, one of the foci of the elliptical surface coincides with the spherical center of the spherical surface, the position of the high beam light source corresponds with the spherical center of the spherical surface, part of light emitted by the high beam light source is reflected by the elliptical surface and then emitted to form high beam, another part is reflected by the spherical surface and then returns to the light source surface of high beam light source to be excited again.Through the high beam reflector cup including elliptical surface and spherical surface, part of light emitted by the high beam light source is reflected by the elliptical surface and then projected on lens unit to emit, another part of light is projected on spherical surface to be reflected to high beam light source to be excited again, so as to improve the luminous brightness of high beam light source;In addition, the high beam reflector cup with the structure not only reduces the size of high beam reflector cup, but also reduces the distance between high beam light source and lens unit, improves the reliability of car light, and reduces the overall length of car light. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure diagram of prior art LED high-low beam integrated automobile headlamp;

[0017] Figure 2 It is the overall structure diagram of double light lens car light in a specific embodiment of the utility model;

[0018] Figure 3 It is the structure explosion drawing of double light lens car light in a specific embodiment of the utility model;

[0019] Figure 4a 、 4b It is the structure diagram of second radiating support in a specific embodiment of the utility model double light lens car light;

[0020] Figure 5 It is the light path schematic diagram of high beam module of the utility model double light lens car light.

[0021] Figure 1 As shown in the figure: 1, low beam LED light source module;2, high beam LED light source module;4, lens;

[0022] Figures 2-5As shown in the figure: 10, the first heat dissipation support; 20, low beam module; 210, low beam light source; 220, low beam reflector cup; 30, high beam module; 310, high beam light source; 320, high beam reflector cup; 321, elliptical surface; 322, spherical surface; 40, the second heat dissipation support; 410, mounting platform; 420, positioning ring; 50, direct light module; 510, direct light source; 520, collimating lens; 60, lens unit; 610, the first lens; 620, the second lens; 630, the third lens; 710, heat dissipation fin; 720, heat dissipation fan; 80, shading device; 810, the first shading piece; 820, the second shading piece; 830, drive motor; 90, horizontal cover plate; 910, vent; 101, aluminum profile heat dissipation fin; 102, fan. DETAILED DESCRIPTION

[0023] The utility model will be described in detail below in combination with the drawings.

[0024] As Figures 2-5As shown, a dual light lens vehicle lamp comprises: a first heat dissipation support 10, a low beam module 20 and a high beam module 30 arranged on the same side of the first heat dissipation support 10, a light shielding device 80 corresponding to the light outlets of the low beam module 20 and the high beam module 30, a second heat dissipation support 40 arranged in front of the first heat dissipation support 10 along the light path, and a lens unit 60 arranged at the end of the second heat dissipation support 40 away from the first heat dissipation support 10. The high beam module 30 comprises a high beam light source 310 and a high beam reflector cup 320. The high beam reflector cup 320 comprises an elliptical surface 321 and a spherical surface 322 arranged in sequence along the direction from the vertex to the light outlet. One of the foci of the elliptical surface 321 coincides with the spherical center of the spherical surface 322. The position of the high beam light source 310 corresponds to the spherical center of the spherical surface 322. Part of the light emitted by the high beam light source 310 is reflected by the elliptical surface 321 and then emitted to form high beam light. Another part of the light is reflected by the spherical surface 322 and then returned to the light source surface of the high beam light source 310 for re-excitation. Specifically, the low beam module 20 comprises a low beam light source 210 and a low beam reflector cup 220 corresponding to the low beam light source 210. The low beam reflector cup 220 is an elliptical surface comprising two foci. The low beam light source 210 corresponds to one of the foci. The light emitted by the low beam light source 210 is reflected by the low beam reflector cup 220 and then projected onto the lens unit 60 after being light distributed by the light shielding device 80 to form low beam light distribution. The high beam reflector cup 320 is arranged in two parts. The side close to the vertex O is the elliptical surface 321, and the side close to the light outlet is the spherical surface 322. One of the foci of the elliptical surface 321 coincides with the spherical center of the spherical surface 322. The high beam light source 310 is located at the spherical center. Part of the light emitted by the high beam light source 310 is projected onto the elliptical surface 321. The light reflected by the elliptical surface 321 is projected onto the lens unit 60 after being light distributed by the other focus of the elliptical surface 321 and the light shielding device 80 to form high beam light distribution. Another part of the light emitted by the high beam light source 310 is projected onto the spherical surface 322 and then returned to the light source surface after being reflected. Since the high beam light source 310 adopts an LED light source or a laser light source, it comprises a fluorescent powder sheet. The light reflected by the spherical surface 322 is re-excited by the fluorescent powder sheet and then emitted through the elliptical surface. In this way, the light can be repeatedly used to avoid waste and improve the luminous brightness of the high beam light source 310. Since the side close to the light outlet of the high beam reflector cup 310 is the spherical surface 322, the light will not be projected onto the lens unit 60. Therefore, the size of the high beam reflector cup 320 can be reduced, and the distance between the high beam light source 310 and the lens unit 60 can be reduced, thereby improving the reliability of the vehicle lamp and reducing the overall length of the vehicle lamp.

[0025] As Figure 3As shown, the lens unit 60 includes a first lens 610 for emitting light of the low beam module 20 and a second lens 620 for emitting light of the high beam module 30. Since the low beam module 20 and the high beam module 30 are located at the same side of the first heat dissipation support 10, i.e. the low beam module 20 and the high beam module 30 are arranged along the width direction of the vehicle lamp, the first lens 610 and the second lens 620 are also arranged along the width direction of the vehicle lamp.

[0026] Preferably, the included angle formed between the elliptical surface 321 and the light emitting surface of the high beam light source 310 is not greater than 130 degrees. As shown, the included angle θ formed between the elliptical surface 321 and the high beam light source 310 is not greater than 130 degrees, such as θ is 110°. Compared with the existing high beam reflector cup, by reducing the size of the included angle θ, the high beam module 30 can be closer to the lens unit 60, and the length of the entire vehicle lamp can be reduced. By reducing the included angle θ, the height of the second lens 620 in the lens unit 60 can also be reduced, thereby reducing the height and volume of the lens unit 60 and the entire vehicle lamp. Figure 3

[0027] As shown, the included angle β formed between the light beam reflected by the high beam light source 310 through the elliptical surface 321 and another focal point P2 of the elliptical surface 321 different from the spherical center of the spherical surface 322 is not greater than 45 degrees. In this way, the height of the second lens 620 in the lens unit 60 can also be reduced, thereby reducing the height and volume of the lens unit 60 and the entire vehicle lamp. Figure 5

[0028] Preferably, in the embodiment, the opening side of the high beam reflector cup 320 is inclined upward relative to the vertex side, so that the light emitted by the elliptical surface 321 can be more projected onto the second lens 620 for emission, thereby improving the brightness of the emitted light.

[0029] Preferably, the distance between the low beam light source 210 and the high beam light source 310 and the lens unit 60 is the same. Through the special design of the high beam reflector cup 320 in the present application, the low beam light source 210 and the high beam light source 310 can be arranged in parallel along the width direction of the vehicle lamp, without the need to increase the distance between the high beam light source 310 and the lens unit 60, thereby further reducing the length and volume of the entire vehicle lamp.

[0030] ​​Preferably, the dual-optical lens car light further comprises a direct light module 50 mounted on the second heat dissipation support 40 and a direct light heat dissipation module corresponding to the direct light module 50, the direct light module 50 does not block the light projected by the low beam module 20 and the high beam module 30 to the lens unit 60, and the lens unit 60 further comprises a third lens 630 for emitting the light of the direct light module 50. In the embodiment, the second heat dissipation support 40 is made of aluminum material with high thermal conductivity, which is fast in heat conduction and light in material. Of course, other heat-conductive materials can also be used. The direct light module 50 is arranged on the second heat dissipation support 40, and the heat generated by the direct light module 50 is conducted out through the second heat dissipation support 40, which increases the heat conduction channel area of the direct light module 50. At the same time, the direct light heat dissipation module is arranged to dissipate heat for the direct light module 50 separately, without sharing the first heat dissipation support 10 with the low beam module 20 and the high beam module 30 for heat dissipation, thereby greatly improving the heat dissipation efficiency. In addition, the direct light module 50 and the lens unit 60 are mounted on the second heat dissipation support 40 at the same time, without the need to separately arrange a direct light module 50 mounting support and mounting space, thereby effectively reducing the production cost, installation complexity and the volume of the entire car light.

[0031] Preferably, the direct light module 50 comprises one or more direct light sources 510, when the direct light sources 510 are provided in multiple, the multiple direct light sources 510 are controlled individually, and the third lens 630 is also provided with multiple third lenses corresponding to the direct light sources 510 one by one. In one case, the direct light source 510 is provided with one, and the third lens 630 is also provided with one corresponding to the position of the direct light source 510. In the low beam state or the high beam state, the direct light source 510 is turned on for supplementary light according to actual needs. In another case, the direct light source 510 is provided with two, and the third lens 630 is also provided with two corresponding to the direct light source 510 one by one, using LED light source or laser light source, and the brightness of the two direct light sources 510 is different. In the low beam state, one of the direct light sources 510 is turned on for supplementary light, and in the high beam state, the other direct light source 510 is turned on for supplementary light. The other direct light source 510 can be used for supplementary light for the high beam module 30, or both direct light sources 510 can be turned on for supplementary light in the low beam state or the high beam state, thereby improving the brightness of the center light spot. In another case, the direct light source 510 is provided with three, and the corresponding third lens 630 is also provided with three corresponding to the direct light source 510 one by one, such as Figure 3As shown, the direct light source 510 can adopt 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, such as the direct light source 510 located in the middle and the direct light source 510 located on both sides adopt different light sources. When in low beam state, the direct light source 510 located in the middle is turned on for light compensation, and when in high beam state, the direct light source 510 located on both sides is turned on for light compensation. The above-mentioned several light compensation modes are only illustrative, and of course other modes can be used to control the opening and closing of the plurality of direct light sources 510 to achieve the desired effect.

[0032] Preferably, the direct light module 50 further comprises a collimating lens 520 arranged between the direct light source 510 and the lens unit 60, which corresponds to the direct light source 510 one by one, and is used for collimating the light beam emitted by the direct light source 510 to achieve the effect of condensing light and improve the brightness of the direct light beam. When the direct light source 510 is provided with a plurality of direct light sources, the collimating lens 520 is also provided with a plurality of collimating lenses, which can be fixed separately or integrally formed, such as Figure 3 As shown.

[0033] As shown in Figure 4a The cross section of the second heat dissipation support 40 is annular, and the inner side is provided with a mounting platform 410, and the direct light module 50 is arranged on the mounting platform 410. The second heat dissipation support 40 adopts a ring-shaped support with openings at the front and rear ends, and the inner side is provided with a mounting platform 410 for mounting the direct light module 50. The ring-shaped structure of the second heat dissipation support 40 can greatly improve the heat dissipation area and further improve the heat dissipation efficiency. The mounting platform 410 is a beam structure vertically extended from the inner side of the second heat dissipation support 40, and the beam structure does not block the light transmitted from the low beam module 20 and the high beam module 30 to the lens unit 60.

[0034] As shown in Figure 4b The direct light heat dissipation module includes a plurality of heat dissipation fins 710 arranged on the side of the mounting platform 410 different from the direct light module 50. The heat dissipation fins 710 are located behind the direct light module 50 and are used for rapid heat dissipation of the direct light module 50. Preferably, the direct light heat dissipation module further comprises a heat dissipation fan 720 corresponding to the heat dissipation fin 710, a horizontal cover plate 90 is arranged on the first heat dissipation support 10, the heat dissipation fan 720 is arranged on the horizontal cover plate 90, and a plurality of ventilation openings 910 corresponding to the heat dissipation fan 720 are arranged on the horizontal cover plate 90. As can be seen, in the present embodiment, the direct light module 50 is cooled by the combination of the second heat dissipation support 40, the heat dissipation fin 710 and the heat dissipation fan 720, and the heat dissipation efficiency of the direct light module 50 can be improved by more than 50% compared with the mounting mode in the prior art.

[0035] Preferably, the lens unit 60 is arranged at the end of the second heat dissipation support 40 away from the first heat dissipation support 10, and an adjusting space is arranged between the periphery of the lens unit 60 and the second heat dissipation support 40. In this embodiment, the lens unit 60 is mounted at the front end of the second heat dissipation support 40 along the light path, and the two are fixed by adhesive. A gap is arranged between the periphery of the lens unit 60 and the second heat dissipation support 40. After the vehicle lamp is assembled, since there is an installation error of the optical components, a light adjusting process is required. At this time, the relative position between the lens unit 60 and the second heat dissipation support 40 is adjusted, so that the emitted light spot meets the set light distribution requirement. After the light adjusting process is completed, the relative position between the lens unit 60 and the second heat dissipation support 40 is fixed. Compared with the prior art, in the light adjusting process, the light source module, the direct module, the lens module and other components need to be adjusted. In this scheme, only the position of the lens unit 60 needs to be adjusted, without the need to adjust multiple components, so the operation is simpler and more efficient.

[0036] In this embodiment, the end of the second heat dissipation support 40 corresponding to the lens unit 60 is also provided with a positioning ring 420 for fixing the lens unit 60. After the position of the lens unit 60 is fixed, the positioning ring 420 is sleeved on the second heat dissipation support 40 from the end of the lens unit 60, so that the lens unit 60 is prevented from being displaced relative to the second heat dissipation support 40, and the assembly precision is ensured.

[0037] Preferably, the light shielding device 80 includes a first light shielding piece 810 and a second light shielding piece 820 corresponding to the light outlets of the low beam module 20 and the high beam module 30, respectively. That is, the first light shielding piece 810 corresponds to the light outlet of the low beam module 20, and the second light shielding piece 820 corresponds to the light outlet of the high beam module 30. In this embodiment, the first light shielding piece 810 and the second light shielding piece 820 can be separately installed, or the light shielding pieces therein can be connected into one body and controlled by the same driving motor 830. The light shielding pieces of the first light shielding piece 810 and the second light shielding piece 820 are both in arc-shaped structure and have upper edges with a cut-off line shape meeting the low beam light type.

[0038] Preferably, the low beam light source 210 can adopt an LED light source, and the high beam light source 310 can adopt an LED light source or a laser light source, that is, a combination of a semiconductor laser and a fluorescent powder sheet. The fluorescent powder sheet is arranged at one of the focal points of the high beam reflector cup 320, and the high beam reflector cup 320 is provided with a through hole for transmitting the laser beam emitted by the semiconductor laser.

[0039] Preferably, the dual-light lens vehicle lamp further includes a heat dissipation module arranged on the side of the first heat dissipation support 10 away from the second heat dissipation support 40. The heat dissipation module includes aluminum profile heat dissipation fins 101 and a fan 102 for dissipating heat of the low beam light source 210 and the high beam light source 310.

[0040] Although the embodiments of the present application are described in the specification, these embodiments are only as a hint, and should not limit the protection scope of the present application. Various omissions, substitutions and changes made within the scope of the present application without departing from the purpose of the present application should be included in the protection scope of the present application.

Claims

1. A dual light lens vehicle lamp, characterized by, include: A first heat dissipation bracket, a low beam module and a high beam module disposed on the same side of the first heat dissipation bracket, a light shielding device corresponding to the light output port of the low beam module and the high beam module, a second heat dissipation bracket disposed in front of the first heat dissipation bracket along the optical path, and a lens unit disposed at the end of the second heat dissipation bracket away from the first heat dissipation bracket. The high beam module includes a high beam light source and a high beam reflector. The high beam reflector includes an elliptical surface and a spherical surface arranged sequentially along the direction from the vertex to the light output port. One focal point of the elliptical surface coincides with the center of the spherical surface. The position of the high beam light source corresponds to the center of the spherical surface. Part of the light emitted by the high beam light source is reflected by the elliptical surface and then emitted to form high beam. The other part is reflected by the spherical surface and then returns to the light source surface of the high beam light source for re-excitation.

2. The dual light lens vehicle lamp of claim 1, wherein, The angle between the elliptical surface and the light-emitting surface of the far-beam light source is no greater than 130 degrees.

3. The dual light lens vehicle lamp of claim 1, wherein, The angle between the beam of light reflected by the elliptical surface and another focal point of the elliptical surface (which is different from the center of the sphere) is no greater than 45 degrees.

4. The dual light lens vehicle lamp of claim 1, wherein, The low beam module includes a low beam light source and a low beam reflector corresponding to the low beam light source. The low beam light source and the high beam light source are at the same distance from the lens unit.

5. The dual light lens vehicle lamp of claim 1, wherein, The lens unit includes a first lens for emitting light from the low beam module and a second lens for emitting light from the high beam module.

6. The dual light lens vehicle lamp of claim 1, wherein, It also includes a direct-beam module mounted on the second heat dissipation bracket and 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 unit by the low beam module and the high beam module. The lens unit also includes a third lens for emitting light from the direct-beam module.

7. The dual light lens vehicle lamp of claim 6, wherein, The second heat dissipation bracket has an annular cross-section and an inner mounting platform, on which the direct-fire module is mounted.

8. The dual light lens vehicle lamp of claim 7, wherein, The direct heat dissipation module includes a plurality of heat dissipation fins disposed on the side of the mounting platform opposite to the direct light source and a heat dissipation fan corresponding to the heat dissipation fins. A horizontal cover plate is provided on the first heat dissipation bracket, the heat dissipation fan is disposed on the horizontal cover plate, and a plurality of ventilation openings corresponding to the heat dissipation fan are provided on the horizontal cover plate.

9. The dual light lens vehicle lamp of claim 6, wherein, 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, and the number of third lenses is the same as that of the direct-light sources, corresponding to each direct-light source.

10. The dual light lens vehicle lamp of claim 1, wherein, An adjustment space is provided between the outer periphery of the lens unit and the second heat dissipation bracket.

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