WO2015176340A1 - Optical module for lenticular automobile headlamp with integrated dual light source for low beam and high beam - Google Patents

Optical module for lenticular automobile headlamp with integrated dual light source for low beam and high beam Download PDF

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Publication number
WO2015176340A1
WO2015176340A1 PCT/CN2014/080160 CN2014080160W WO2015176340A1 WO 2015176340 A1 WO2015176340 A1 WO 2015176340A1 CN 2014080160 W CN2014080160 W CN 2014080160W WO 2015176340 A1 WO2015176340 A1 WO 2015176340A1
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WO
WIPO (PCT)
Prior art keywords
light source
lens
high beam
mirror
reflector
Prior art date
Application number
PCT/CN2014/080160
Other languages
French (fr)
Chinese (zh)
Inventor
程兴华
Original Assignee
天津方合科技发展有限公司
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Publication of WO2015176340A1 publication Critical patent/WO2015176340A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F21S41/295—Attachment thereof specially adapted to projection lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/68—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens
    • F21S41/683—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on screens by moving screens
    • F21S41/686—Blades, i.e. screens moving in a vertical plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/49—Attachment of the cooling means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature

Definitions

  • the present invention relates to automotive lighting, and more particularly to a lens-type automotive headlamp optical module that is a dual-source light source.
  • BACKGROUND OF THE INVENTION With the continuous development of LED lighting technology, more and more automobile manufacturers have applied LEDs to automotive lighting. After continuous exploration, there are three main forms of viable optical structures, the first one and the traditional reflective The optical principle of the mirror form is the same, only the mirror can be used to achieve the lighting requirements, and the second is the same as the optical principle of the traditional halogen and xenon lens type headlamp optical module, which can be used by a lens optical module.
  • the former two just replace the traditional light source with the LED light source, there is no change in the optical form, and the third form can also be called the special lens form, which is specially developed for the LED light source.
  • the special lens form which is specially developed for the LED light source.
  • Various shaped lenses have not been used in traditional automotive lighting.
  • the advantages are simple optical form, low cost, low light loss, no dispersion, but the disadvantage is that since the single automotive LED light source currently on the market has not yet reached sufficient brightness, It is necessary to use a combination of multiple automotive LED light sources and multiple mirrors to achieve suitable lighting requirements, which requires a large space inside the lamp, which is not conducive to miniaturization of the lamp, and there is a certain uniform illumination effect. technical difficulty.
  • the third type of shaped lens is characterized by the small size of the LED light source, and developed a variety of small lenses suitable for the LED light source, forming a low beam illumination or a high beam illumination through a combination of multiple small lenses.
  • Automotive lighting is diversified, flexible, and stylish, aesthetically pleasing, and technologically savvy.
  • the shortcoming is that the structure is complicated, the cost is high, and the space occupied by the lamp is large, which is not conducive to large-scale promotion, and is not energy-saving, and only appears in some high-end models.
  • the advantage is that a clear cut-off line can be formed, and uniform illumination can be easily realized, and the near-infrared light can be integrated by a single module. Due to the compact structure, the space occupied by the lamp is small. , so the versatility is very strong, which is conducive to popularization.
  • the prior art realizes the switching of far and near light through the conventional optical form. This form is limited by the luminous intensity of the LED light source for the vehicle, and it is difficult to achieve the illumination requirement of the integrated illumination of the near and far light only by the single optical module.
  • the best car lighting effect is: high beam highlights the distant facet The light is concentrated, the low beam is bright and the large area is bright.
  • the lens module of the traditional light source is driven by a single drive.
  • the device can be switched up and down by the visor to move the near and far light.
  • the visor falls, allowing the light to pass through, achieving full illumination at near and far ends, achieving a high beam effect;
  • the low beam is lit
  • the visor is lifted up to block the light that is directed to the far side, and only the light passing through to the vicinity is passed to achieve the low beam effect, but the optical form does not take into account the independent needs of the far and near light illumination, so that the optimal illumination effect cannot be achieved.
  • the form also requires that the light source can provide sufficient luminous flux to achieve sufficient brightness, and it is difficult to meet the requirements of the near-infrared integrated illumination by occlusion in the form of occlusion of the current LED light source. Therefore, the automotive industry urgently needs to develop a headlamp with simple structure, strong versatility, large-scale production, and excellent near-light illumination performance.
  • the present invention is to overcome the deficiencies in the prior art, and to provide a lens-type automotive headlamp optical module with a near-light-integrated dual-light source, which achieves the independence of low beam and high beam simultaneously on one module. Illumination, the realization of the close-up of the car's illumination is close to the wide area, and the high beam highlights the best illumination effect in the narrow field.
  • the utility model realizes a lens type automobile headlight optical module with a near-infrared light and a double light source, which comprises a lens holder, a lens, a main mirror, an auxiliary mirror, a light source and a driving mechanism. And a heat sink, wherein: the light source is composed of a low beam light source having a low beam illumination function and a high beam light source having a high beam illumination function, and the light source center of the low beam source is disposed in the main reflection.
  • the center of the light source of the high beam source is disposed at a position near the focus of the lens;
  • the main mirror is fixed to the heat sink;
  • the auxiliary mirror is disposed below the inner wall of the main mirror, and the front and bottom of the auxiliary mirror
  • a high beam side mirror is provided, and the auxiliary mirror is translated back and forth by the driving mechanism.
  • the distance between the center of the light source of the high-beam source and the focus of the lens in the three directions of X, ⁇ , ⁇ is: X direction - 15 mm ⁇ 15 mm, Y direction - 15 mm ⁇ 0 mm, Z direction - 15 mm ⁇ 15 mm.
  • the auxiliary mirror is composed of a zigzag reflector and a high beam side mirror.
  • the auxiliary mirror is a zigzag reflector directly above, and the front lower side is a high beam side mirror.
  • the zigzag reflector is left and right.
  • Two horizontal reflectors of different heights and a beveled reflector at an angle to the horizontal plane are connected to form an integral zigzag reflector.
  • the height difference between the two horizontal reflectors of the zigzag reflector is 0 to 10 mm
  • the angle between the slope reflector and the horizontal plane is 10° to 90°
  • the center position of the slope reflector is 5 mm from the central axis of the lens.
  • the Z-shaped reflector has an overall size of 100 X 100 mm, and the zigzag reflector has a semi-circular notch directly in front of the semi-circular notch.
  • the radius of the semi-circular notch is 0 to 50 mm, and the semi-circular notch is centered on the central axis of the lens.
  • the high beam side mirror is composed of a plurality of sets of free curved mirrors around the high beam source, each group is composed of one or more free curved surfaces or planes, and the overall size of the high beam side mirror is smaller than The overall size of the zigzag reflector.
  • the inner wall surface of the main mirror is composed of a plurality of free curved surfaces to form an integral reflective surface.
  • the auxiliary mirror is fixed and guided by a bearing sliding mechanism disposed under the left and right sides thereof.
  • the bearing sliding mechanism is composed of a sleeve, a guide sleeve and an optical shaft, and the sleeve is disposed at a front and rear position of the left and right sides of the auxiliary mirror.
  • a guide sleeve is arranged in the sleeve, and an optical axis is slidably connected to each of the two guide sleeves, and the auxiliary mirror slides back and forth on the optical axis through the guide sleeve.
  • the driving mechanism comprises a bracket, a coil, a permanent magnet and a hooked iron core to form an electromagnetic driving mechanism, or a motor driving mechanism, and the core hook of the driving mechanism is inserted into the bottom socket of the auxiliary mirror.
  • the light source, the auxiliary mirror and the driving mechanism are fixed on the heat sink, and the fan is fixed with a fan, a near-light power supply line and a buffer pad.
  • the utility model utilizes the flexibility of the LED light source, and provides two independent LED lighting units and an optical reflection system on the same module, and then the light emitted by the two uses the same lens to control the final outgoing light.
  • this optical form fundamentally and effectively solves the above-mentioned contradiction between the far and near light caused by using only one optical form, and realizes the close proximity of the automobile illumination.
  • the wide area is bright, the high beam highlights the best illumination effect in the narrow and narrow field, and the structure is compact, and the space occupied by the lamp is small, so the versatility is very strong.
  • the utility model has a special design for the power supply, that is, when the low beam is lit, only the low beam light source is illuminated, but when the high beam is illuminated, the near and far light sources are simultaneously illuminated.
  • the power of the low-light source will be adjusted according to the specific situation to play the role of assisting high-beam illumination.
  • Figure 1 is a schematic view of the structure of the present invention
  • 2 is a schematic perspective view of the utility model
  • FIG. 3 is a schematic view showing the position of the light source of the present invention on the heat sink;
  • FIG. 4 is a schematic view of the central longitudinal section and the low-optical optical principle of the present invention.
  • Figure 5 is a front elevational view of the movable auxiliary mirror of the present invention.
  • Figure 6 is a top plan view of the movable auxiliary mirror of the present invention.
  • FIG. 7 is a schematic view showing the driving principle of the movable auxiliary mirror of the present invention.
  • Figure 8 is a schematic view showing the fixed auxiliary guiding mechanism of the movable auxiliary mirror of the present invention.
  • Figure 9 is a schematic view showing the position of the front component of the heat sink of the present invention.
  • Figure 10 is a schematic view showing the position of the upper rear assembly of the heat sink of the present invention.
  • Figure 11 is a schematic view of the central longitudinal section and the high beam optical principle of the present invention.
  • the present invention provides a lens-type automotive headlamp optical module with far and near-light integrated dual light source, mainly by lens holder 1, lens 2, main mirror 3.
  • the auxiliary mirror 4, the low beam source 5, the high beam source 6, the radiator 7, the fan 8, and the drive mechanism 9 constitute an integral headlamp optical module.
  • This embodiment uses an LED light source.
  • the inner wall of the main mirror 3 is connected by a plurality of free curved surfaces and is mounted directly above the heat sink 7; the lens 2 is fixed to the front side of the heat sink 7 and the main mirror 3 through the lens holder 1; the auxiliary mirror 4 is disposed below the inner wall of the main mirror 3, and is mounted on the radiator 7 by a bearing sliding mechanism, and is integrally moved forward and backward by a driving mechanism 9 fixed to the radiator 7.
  • the light source is composed of a low beam light source 5 having a low beam illumination function and a high beam light source 6 having a high beam illumination function, and the low beam source 5 is integrated with the conventional far and near light.
  • the center of the light source is disposed at the focus 01 position of the main mirror 3 shown in FIG. 4, and the center of the high beam source 6 is disposed at a position near the focus 02 of the lens 2, with the focus 02 being
  • the distance between the X, Y and Z directions is X direction _15mm ⁇ 15mm, Y direction -15mm ⁇ 0mm, Z direction -15mm ⁇ 15mm, and the light source is fixed to the heat sink 7.
  • the auxiliary mirror is composed of a zigzag reflector and a high beam side mirror.
  • the auxiliary mirror is a zigzag reflector directly above, and the zigzag reflector has two different heights.
  • the horizontal reflectors 11, 13 and a diagonal reflector 12 at an angle to the horizontal plane are connected.
  • the height difference h between the two horizontal reflectors 11 and 13 is between 0 and 10 mm, and the intermediate slope reflector 12 and the horizontal plane.
  • the angle A is between 10° and 90°, and the distance D between the center position of the slope and the central axis C1C2 of the lens is within 5 mm.
  • the overall size of the Z-shaped reflector is not more than 100 X 100 mm, and the semicircle is provided directly in front.
  • the notch, the radius R is between 0 and 50 mm, and the center of the semicircular notch is set on the central axis C1C2 of the lens.
  • the front and lower sides of the auxiliary mirror are high beam side mirrors, and the high beam side mirrors are composed of upper, lower 15, left 16 and right 17 mirrors, each group consisting of one or more.
  • the plane or free-form surface is combined, and the high beam side mirror can be symmetrically or asymmetrically designed.
  • the overall size of the high beam side mirror is smaller than the overall size of the zigzag reflector.
  • the auxiliary mirror has a horizontal movement, and the moving direction is the front and rear direction of the automobile, that is, the Z direction, and moves forward when the low beam is lit, and stops at the lens focus 02 position; when the high beam point When it is bright, it moves backwards, that is, the Z-axis is negative.
  • the high-beam side mirror reaches the distance from the high-beam light source d, d stops between 0 and 3 mm.
  • the auxiliary mirror is fixed and guided by a bearing system disposed under the left and right sides thereof.
  • the bearing system is composed of a sleeve 18, a guide sleeve 19 and an optical shaft 20, and the sleeve 18 is provided in the auxiliary
  • the front and rear positions of the left and right sides of the mirror are arranged, and the sleeve 18 is provided with a guide sleeve 19, and each of the front and rear guide sleeves is equipped with an optical axis 20, and the auxiliary mirror can be smoothly moved on the optical axis 20 through the guide sleeve 19. slide.
  • the driving mechanism 9 includes a bracket 21, a coil 22, a permanent magnet 23, and a hooked iron core 24 to constitute an electromagnetic driving, or a motor driving mechanism, etc., the hook of the driving mechanism and the bottom of the auxiliary mirror
  • the socket is plugged in.
  • the heat sink is also fixed with a fan 8, a high beam power supply line 25, a low beam power supply line 26 and a buffer pad 27.
  • the utility model has a special design for the power source, that is, when the low beam is lit, only the low beam light source is illuminated, but when the high beam is lit, the near and far light sources are simultaneously lit, but the power of the low beam source depends on the specific situation. Make corresponding adjustments to assist the effect of high beam illumination.
  • the auxiliary mirror 4 is fixed and guided by a bearing system disposed under the left and right sides thereof, and the bearing system is composed of a sleeve 18, a guide sleeve 19 and an optical axis 20
  • the sleeve is disposed at the front and rear positions of the left and right sides of the auxiliary mirror, and the sleeve 18 is provided with a guide sleeve 19, and the guide sleeve and the sleeve are over-tightly fitted, and an optical axis 20 is assembled in each of the front and rear guide sleeves.
  • the guide sleeve and the optical axis are slidingly matched.
  • the auxiliary mirror can smoothly slide back and forth on the optical axis, and the optical axis is fixed in the sliding slot of the heat sink 7 as shown in FIG. 9, and the position of the chute is as shown in FIG. 28, each optical axis is pressed by the two screws 10 against the middle of the optical axis and the heat sink is fastened, and the auxiliary mirror can slide back and forth in the sliding slot of the radiator, and the two ends of the radiator chute are limited.
  • the baffle positions the auxiliary mirror back and forth.
  • a buffer pad 24 is installed in front of each limit baffle.
  • Driving mechanism principle As shown in FIG.
  • the driving mechanism 9 of the embodiment is fixed on the bottom of the heat sink 7, and the power output mode thereof is as shown in FIG. 7, and is driven by the hook core 24 and the auxiliary mirror bottom socket.
  • the auxiliary mirror slides back and forth in the Z direction, and the driving mechanism includes a bracket 21, a coil 22, a permanent magnet 23, and a belt hook core 24 to constitute an electromagnetic drive.
  • the driving mechanism does not need to overcome the gravity influence of the load, so the device only switches in the near and far light.
  • the permanent magnet is sucked and disconnected, and it is not necessary to be energized for a long time to avoid the overheating failure of the existing product due to the long-time high current of the driving device.
  • the light source, the auxiliary mirror and the driving mechanism are fixed on the heat sink, and the fan 8 is fixed to the heat sink, and the light source power supply lines 25 and 26 and the buffer pad 27 are fixed.
  • the principle of heat dissipation Since the LED will release a large amount of heat during operation, it is necessary to perform good thermal control on the system.
  • the high beam source 5 and the low beam source 6 are directly fixed to the radiator. 7, in order to ensure that the heat generated by the LED light source enters the heat sink at the fastest speed, but because the space inside the light lamp is limited, the volume and heat dissipation area of the heat sink are greatly limited, so the LED light source cannot be satisfied simply by passive heat dissipation.
  • the fan 8 fixed on the heat sink can accelerate the heat dissipation effect.
  • the heat sink fin is specially designed, that is, the fan is positive.
  • the pair of fins are wavy in shape to enhance the wind pressure and direct the airflow to where heat is most needed.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

Disclosed is an optical module for a lenticular automobile headlamp with an integrated dual light source for a low beam and a high beam, comprising a lens support, a lens, a main reflector, an auxiliary reflector, light sources and a heat radiator, and is characterized in that: the light sources comprise two independent light emitting units composed of a low beam light source having a low beam illuminating function and a high beam light source having a high beam illuminating function, wherein a light source centre of the low beam light source is provided in the focal point of the main reflector, and a light source centre of the high beam light source is provided near the focal point of the lens; the main reflector is fixedly connected to the heat radiator; the auxiliary reflector is provided below an inner wall of the main reflector, a high beam side reflector is provided in front of and below the auxiliary reflector, and the auxiliary reflector translates back and forth by means of a driving mechanism. Beneficial effects: two independent light emitting units and optical reflecting systems are provided in one module, and light rays emitted by the two units use the same lens to control emergent light rays, realizing the optimum illuminating effects that when the low beam for automobile illumination is used, a near wide area is focused and lightened, and when the high beam therefor is used, a distant narrow area is focused and lightened.

Description

远近光一体双光源的透镜式汽车前照灯光学模组 技术领域 本实用新型属于汽车照明， 尤其涉及一种远近光一体双光源的透镜式汽车前照 灯光学模组。 背景技术 随着 LED照明技术的不断发展，已经有越来越多的汽车厂商将 LED应用到汽车 照明当中， 经过不断的探索， 其可行的光学结构形式主要有三种形式， 第一种与传 统反光镜形式的光学原理一样， 仅采用反光镜即可实现照明要求， 第二种则与传统 的卤素灯和氙灯的透镜式前照灯光学模组的光学原理一样， 可以通过一个透镜光学 模组来实现远光、 近光或者远近光一体， 前两者只是把传统光源更换为 LED光源， 在光学形式上没有变化， 而第三种形式也可以称为异形透镜形式， 是专门针对 LED 光源而开发的各种异形透镜， 在传统汽车照明里不曾用到。  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to automotive lighting, and more particularly to a lens-type automotive headlamp optical module that is a dual-source light source. BACKGROUND OF THE INVENTION With the continuous development of LED lighting technology, more and more automobile manufacturers have applied LEDs to automotive lighting. After continuous exploration, there are three main forms of viable optical structures, the first one and the traditional reflective The optical principle of the mirror form is the same, only the mirror can be used to achieve the lighting requirements, and the second is the same as the optical principle of the traditional halogen and xenon lens type headlamp optical module, which can be used by a lens optical module. Realizing high beam, low beam or far and near light integration, the former two just replace the traditional light source with the LED light source, there is no change in the optical form, and the third form can also be called the special lens form, which is specially developed for the LED light source. Various shaped lenses have not been used in traditional automotive lighting.
对于第一种反光镜形式而言， 其优点是光学形式简单， 成本低廉， 光损失少， 无色散，但缺点是由于目前市场上销售的单颗汽车 LED光源还未能达到足够的亮度， 所以需要通过多颗汽车 LED光源与多枚反光镜组合应用才能达到适合的照明要求， 这就需要占用较大的灯内空间， 不利于车灯的小型化， 并且做出均匀的照明效果存 在一定的技术难度。  For the first type of mirror, the advantages are simple optical form, low cost, low light loss, no dispersion, but the disadvantage is that since the single automotive LED light source currently on the market has not yet reached sufficient brightness, It is necessary to use a combination of multiple automotive LED light sources and multiple mirrors to achieve suitable lighting requirements, which requires a large space inside the lamp, which is not conducive to miniaturization of the lamp, and there is a certain uniform illumination effect. technical difficulty.
对于第三种异形透镜形式， 其特色是利用了 LED光源体积小的特点， 开发出多 种适合 LED光源的小型透镜，通过多枚小型透镜的组合形成近光照明或者远光照明， 该形式让汽车照明实现了多样化， 灵活性增强， 且外观时尚、 美观， 颇具科技感。 但缺点是结构复杂， 成本高， 所占灯内空间大， 不利于大规模推广， 且并不节能， 只在某些高端车型有所亮相。  For the third type of shaped lens, it is characterized by the small size of the LED light source, and developed a variety of small lenses suitable for the LED light source, forming a low beam illumination or a high beam illumination through a combination of multiple small lenses. Automotive lighting is diversified, flexible, and stylish, aesthetically pleasing, and technologically savvy. However, the shortcoming is that the structure is complicated, the cost is high, and the space occupied by the lamp is large, which is not conducive to large-scale promotion, and is not energy-saving, and only appears in some high-end models.
对于第二种透镜形式，其优点是可以形成清晰的明暗截止线，很容易实现均匀 的照明， 通过单一模组即可实现远近光一体照明， 由于结构紧凑， 其所占车灯内空 间很小， 所以通用性很强， 利于普及。 但现有技术是通过传统的光学形式来实现远 近光切换， 该形式由于受到车用 LED光源发光强度的限制， 仅通过单颗光学模组还 很难达到远近光一体照明的照度要求。 最佳的汽车照明效果是： 远光突出远处小面 积亮， 近光则突出近处大面积亮， 仅通过一种光学形式实现两种不同的照明效果本 身就存在矛盾， 为了解决该矛盾， 传统光源的远近光一体的透镜模组是通过一个驱 动装置可以上下拨动的遮光板来实现远近光的切换， 当远光点亮时遮光板落下， 让 光线充分通过， 实现近处与远处全面照明， 达到远光效果； 当近光点亮时， 遮光板 抬起， 遮挡射向远方的光线， 仅让照向近处的光线通过， 实现近光效果， 但该光学 形式并非兼顾远近光照明的独立需求， 所以无法达到最佳的照明效果， 并且该形式 还需要光源可以提供足够的光通量才能达到足够的亮度， 而在目前车用 LED光源的 发光强度条件下通过遮挡的形式同时实现远近光一体照明还很难满足要求。 所以汽 车行业亟待开发一种结构简单， 通用性强， 可以实现规模化生产， 且远近光照明性 能均出色的前照灯。 实用新型内容 本实用新型是为了克服现有技术中的不足，提供一种远近光一体双光源的透镜 式汽车前照灯光学模组， 达到在一个模组上同时实现近光与远光的独立照明， 实现 了汽车照明近光突出近处宽域亮， 远光突出远处窄域亮的最佳照明效果。 For the second lens form, the advantage is that a clear cut-off line can be formed, and uniform illumination can be easily realized, and the near-infrared light can be integrated by a single module. Due to the compact structure, the space occupied by the lamp is small. , so the versatility is very strong, which is conducive to popularization. However, the prior art realizes the switching of far and near light through the conventional optical form. This form is limited by the luminous intensity of the LED light source for the vehicle, and it is difficult to achieve the illumination requirement of the integrated illumination of the near and far light only by the single optical module. The best car lighting effect is: high beam highlights the distant facet The light is concentrated, the low beam is bright and the large area is bright. There are contradictions in the realization of two different lighting effects through only one optical form. In order to solve this contradiction, the lens module of the traditional light source is driven by a single drive. The device can be switched up and down by the visor to move the near and far light. When the high beam is illuminated, the visor falls, allowing the light to pass through, achieving full illumination at near and far ends, achieving a high beam effect; when the low beam is lit The visor is lifted up to block the light that is directed to the far side, and only the light passing through to the vicinity is passed to achieve the low beam effect, but the optical form does not take into account the independent needs of the far and near light illumination, so that the optimal illumination effect cannot be achieved. Moreover, the form also requires that the light source can provide sufficient luminous flux to achieve sufficient brightness, and it is difficult to meet the requirements of the near-infrared integrated illumination by occlusion in the form of occlusion of the current LED light source. Therefore, the automotive industry urgently needs to develop a headlamp with simple structure, strong versatility, large-scale production, and excellent near-light illumination performance. SUMMARY OF THE INVENTION The present invention is to overcome the deficiencies in the prior art, and to provide a lens-type automotive headlamp optical module with a near-light-integrated dual-light source, which achieves the independence of low beam and high beam simultaneously on one module. Illumination, the realization of the close-up of the car's illumination is close to the wide area, and the high beam highlights the best illumination effect in the narrow field.
本实用新型为实现上述目的， 通过以下技术方案实现， 一种远近光一体双光源 的透镜式汽车前照灯光学模组， 包括透镜支架、 透镜、 主反光镜、 辅助反光镜、 光 源、 驱动机构和散热器， 其特征是： 所述光源由具有近光照明功能的近光光源及具 有远光照明功能的远光光源构成两个独立发光单元， 所述近光光源的光源中心设置 在主反光镜的焦点位置， 所述远光光源的光源中心设置在透镜的焦点附近位置； 所 述主反光镜与散热器固接； 所述辅助反光镜设在主反光镜内壁下方， 辅助反光镜前 下方设有远光侧向反光镜， 辅助反光镜通过驱动机构前后平动。  In order to achieve the above object, the utility model realizes a lens type automobile headlight optical module with a near-infrared light and a double light source, which comprises a lens holder, a lens, a main mirror, an auxiliary mirror, a light source and a driving mechanism. And a heat sink, wherein: the light source is composed of a low beam light source having a low beam illumination function and a high beam light source having a high beam illumination function, and the light source center of the low beam source is disposed in the main reflection. a focus position of the mirror, the center of the light source of the high beam source is disposed at a position near the focus of the lens; the main mirror is fixed to the heat sink; the auxiliary mirror is disposed below the inner wall of the main mirror, and the front and bottom of the auxiliary mirror A high beam side mirror is provided, and the auxiliary mirror is translated back and forth by the driving mechanism.
所述远光光源的光源中心与透镜焦点在 X、 Υ、 Ζ三个方向的距离范围为： X方向 - 15mm ~ 15mm, Y方向- 15mm〜0mm， Z方向- 15mm〜 15mm。  The distance between the center of the light source of the high-beam source and the focus of the lens in the three directions of X, Υ, Ζ is: X direction - 15 mm ~ 15 mm, Y direction - 15 mm ~ 0 mm, Z direction - 15 mm ~ 15 mm.
所述辅助反光镜由 z字形反光板及远光侧向反光镜构成， 所述辅助反光镜正上 方为 z字形反光板， 前下方为远光侧向反光镜， 所述 z字形反光板由左右两块不同 高度的水平反光板及中间一块与水平面成一角度的斜面反光板相连构成整体 z字形 反光板。 所述 Z字形反光板的两块水平反光板高度差为 0〜 10mm，所述斜面反光板与水平 面的夹角为 10°〜90°， 斜面反光板的中心位置与透镜中轴线的距离 5mm， 所述 Z 字形反光板整体尺寸 100 X 100mm， 所述 Z字形反光板正前方设有半圆形缺口， 半 圆形缺口的半径为 0〜50mm， 半圆形缺口中心在透镜中轴线上。 The auxiliary mirror is composed of a zigzag reflector and a high beam side mirror. The auxiliary mirror is a zigzag reflector directly above, and the front lower side is a high beam side mirror. The zigzag reflector is left and right. Two horizontal reflectors of different heights and a beveled reflector at an angle to the horizontal plane are connected to form an integral zigzag reflector. The height difference between the two horizontal reflectors of the zigzag reflector is 0 to 10 mm, the angle between the slope reflector and the horizontal plane is 10° to 90°, and the center position of the slope reflector is 5 mm from the central axis of the lens. The Z-shaped reflector has an overall size of 100 X 100 mm, and the zigzag reflector has a semi-circular notch directly in front of the semi-circular notch. The radius of the semi-circular notch is 0 to 50 mm, and the semi-circular notch is centered on the central axis of the lens.
所述远光侧向反光镜的由远光光源周边的多组自由曲面反光镜构成， 每组由 1 个或 1个以上的自由曲面或平面组合而成， 远光侧向反光镜整体尺寸小于 Z字形反 光板整体尺寸。  The high beam side mirror is composed of a plurality of sets of free curved mirrors around the high beam source, each group is composed of one or more free curved surfaces or planes, and the overall size of the high beam side mirror is smaller than The overall size of the zigzag reflector.
所述主反光镜内壁表面由多个自由曲面构成整体反光面。  The inner wall surface of the main mirror is composed of a plurality of free curved surfaces to form an integral reflective surface.
所述辅助反光镜由设在其左右两侧下方的轴承滑动机构固定并导向， 所述轴承 滑动机构由轴套、 导套及光轴构成， 轴套设在辅助反光镜左右两侧下方前后位置， 轴套中装有导套， 每前后两个导套中滑动连接有光轴， 辅助反光镜通过导套在光轴 上前后滑动。  The auxiliary mirror is fixed and guided by a bearing sliding mechanism disposed under the left and right sides thereof. The bearing sliding mechanism is composed of a sleeve, a guide sleeve and an optical shaft, and the sleeve is disposed at a front and rear position of the left and right sides of the auxiliary mirror. A guide sleeve is arranged in the sleeve, and an optical axis is slidably connected to each of the two guide sleeves, and the auxiliary mirror slides back and forth on the optical axis through the guide sleeve.
所述驱动机构包括支架、 线圈、 永磁体和带挂钩铁心构成电磁式驱动机构， 也 可以是马达驱动机构， 驱动机构的铁心挂钩与辅助反光镜底部插口插接。  The driving mechanism comprises a bracket, a coil, a permanent magnet and a hooked iron core to form an electromagnetic driving mechanism, or a motor driving mechanism, and the core hook of the driving mechanism is inserted into the bottom socket of the auxiliary mirror.
所述光源、 辅助反光镜及驱动机构固接在散热器上， 所述散热器上固接有风扇、 远近光供电线路及缓冲垫片。  The light source, the auxiliary mirror and the driving mechanism are fixed on the heat sink, and the fan is fixed with a fan, a near-light power supply line and a buffer pad.
有益效果： 本实用新型利用 LED光源的灵活性， 在同一个模组上设置了两个独 立的 LED发光单元及光学反射***， 然后两者发出的光线再利用同一个透镜来控制 最终的出射光线， 从而达到近光与远光的独立照明， 此种光学形式从根本上有效的 解决了上述由于仅使用一种光学形式造成的远近光难以两全的矛盾， 实现了汽车照 明近光突出近处宽域亮， 远光突出远处窄域亮的最佳照明效果， 且结构紧凑、 所占 灯内空间小， 所以通用性很强。 为了实现更好的远光照明效果， 本实用新型对电源 进行了特殊设计， 即在近光点亮时， 仅点亮近光光源， 但在远光点亮时， 远近光光 源同时点亮， 但近光光源的功率根据具体情况会做出相应调整， 起到辅助远光照明 的效果。  Advantageous Effects: The utility model utilizes the flexibility of the LED light source, and provides two independent LED lighting units and an optical reflection system on the same module, and then the light emitted by the two uses the same lens to control the final outgoing light. In order to achieve independent illumination of low beam and high beam, this optical form fundamentally and effectively solves the above-mentioned contradiction between the far and near light caused by using only one optical form, and realizes the close proximity of the automobile illumination. The wide area is bright, the high beam highlights the best illumination effect in the narrow and narrow field, and the structure is compact, and the space occupied by the lamp is small, so the versatility is very strong. In order to achieve better high beam illumination effect, the utility model has a special design for the power supply, that is, when the low beam is lit, only the low beam light source is illuminated, but when the high beam is illuminated, the near and far light sources are simultaneously illuminated. However, the power of the low-light source will be adjusted according to the specific situation to play the role of assisting high-beam illumination.
附图说明 DRAWINGS
图 1是本实用新型的结构示意图； 图 2是本实用新型的立体效果示意图； Figure 1 is a schematic view of the structure of the present invention; 2 is a schematic perspective view of the utility model;
图 3是本实用新型的光源在散热器上位置示意图； 3 is a schematic view showing the position of the light source of the present invention on the heat sink;
图 4是本实用新型的中心纵切面及近光光学原理示意图； 4 is a schematic view of the central longitudinal section and the low-optical optical principle of the present invention;
图 5是本实用新型的可动辅助反光镜正视示意图； Figure 5 is a front elevational view of the movable auxiliary mirror of the present invention;
图 6是本实用新型的可动辅助反光镜俯视示意图； Figure 6 is a top plan view of the movable auxiliary mirror of the present invention;
图 7是本实用新型的可动辅助反光镜驱动原理示意图； 7 is a schematic view showing the driving principle of the movable auxiliary mirror of the present invention;
图 8是本实用新型的可动辅助反光镜固定导向机构示意图； Figure 8 is a schematic view showing the fixed auxiliary guiding mechanism of the movable auxiliary mirror of the present invention;
图 9是本实用新型的散热器上正面组件位置说明示意图； Figure 9 is a schematic view showing the position of the front component of the heat sink of the present invention;
图 10是本实用新型的散热器上背面组件位置说明示意图； Figure 10 is a schematic view showing the position of the upper rear assembly of the heat sink of the present invention;
图 11是本实用新型的中心纵切面及远光光学原理示意图。 Figure 11 is a schematic view of the central longitudinal section and the high beam optical principle of the present invention.
图中： 1、 透镜支架， 2、 透镜， 3、 主反光镜， 4、 辅助反光镜， 5、 近光光源， 6、 远光光源， 7、 散热器， 8、 风扇 ， 9、 驱动机构， 10、 平垫组合螺钉， 11-13、 Z字 形反光面， 14-17、 远光侧向反光镜反光面， 18、 轴套、 19、 导套， 20、 光轴， 21、 支架， 22、 线圈， 23、 永磁体， 24带挂钩铁心， 25远光供电线路， 26、 近光供电线 路， 27、 缓冲垫片， 28、 滑槽。 具体实施方式 以下结合较佳实施例， 对依据本实用新型提供的具体实施方式详述如下： 实施例 In the figure: 1, lens holder, 2, lens, 3, main mirror, 4, auxiliary mirror, 5, low beam, 6, high beam, 7, radiator, 8, fan, 9, drive mechanism, 10, flat pad combination screw, 11-13, zigzag reflective surface, 14-17, high beam side mirror reflective surface, 18, bushing, 19, guide sleeve, 20, optical axis, 21, bracket, 22, Coil, 23, permanent magnet, 24 with hook core, 25 high beam power supply line, 26, low beam power supply line, 27, buffer gasket, 28, chute. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, in conjunction with the preferred embodiments, the specific embodiments provided in accordance with the present invention are described in detail below:
详见附图 1和 2，与现有技术相比，本实用新型提供了一种远近光一体双光源的 透镜式汽车前照灯光学模组， 主要由透镜支架 1、 透镜 2、 主反光镜 3、 辅助反光镜 4、 近光光源 5、远光光源 6、 散热器 7、 风扇 8、驱动机构 9构成整体前照灯光学模 组。 本实施例采用 LED光源。 所述主反光镜 3内壁由多个自由曲面相连构成， 安装 在散热器 7正上方； 所述透镜 2通过透镜支架 1固接在散热器 7及主反光镜 3正前 方； 所述辅助反光镜 4设在主反光镜 3内壁下方， 通过轴承滑动机构安装于散热器 7上， 整体通过固定在散热器 7上的驱动机构 9前后平动。 如图 3和 4所示， 所述光源由具有近光照明功能的近光光源 5及具有远光照明 功能的远光光源 6构成两个独立发光单元， 近光光源 5与传统远近光一体的透镜式 汽车前照灯一样，光源中心设置在图 4所示主反光镜 3的焦点 01位置上，而所述远 光光源 6的中心则设置在透镜 2的焦点 02附近位置， 与焦点 02在 X、 Y、 Z三个方 向的距离范围为 X方向 _15mm〜15mm， Y方向 -15mm〜0mm， Z方向 -15mm〜15mm，所述 光源与散热器 7固接. Referring to Figures 1 and 2, compared with the prior art, the present invention provides a lens-type automotive headlamp optical module with far and near-light integrated dual light source, mainly by lens holder 1, lens 2, main mirror 3. The auxiliary mirror 4, the low beam source 5, the high beam source 6, the radiator 7, the fan 8, and the drive mechanism 9 constitute an integral headlamp optical module. This embodiment uses an LED light source. The inner wall of the main mirror 3 is connected by a plurality of free curved surfaces and is mounted directly above the heat sink 7; the lens 2 is fixed to the front side of the heat sink 7 and the main mirror 3 through the lens holder 1; the auxiliary mirror 4 is disposed below the inner wall of the main mirror 3, and is mounted on the radiator 7 by a bearing sliding mechanism, and is integrally moved forward and backward by a driving mechanism 9 fixed to the radiator 7. As shown in FIGS. 3 and 4, the light source is composed of a low beam light source 5 having a low beam illumination function and a high beam light source 6 having a high beam illumination function, and the low beam source 5 is integrated with the conventional far and near light. Like the lenticular headlight, the center of the light source is disposed at the focus 01 position of the main mirror 3 shown in FIG. 4, and the center of the high beam source 6 is disposed at a position near the focus 02 of the lens 2, with the focus 02 being The distance between the X, Y and Z directions is X direction _15mm~15mm, Y direction -15mm~0mm, Z direction -15mm~15mm, and the light source is fixed to the heat sink 7.
如图 5、 6所示， 所述辅助反光镜由 Z字形反光板及远光侧向反光镜构成， 所述 辅助反光镜正上方为 Z字形反光板， Z字形反光板由左右两块不同高度的水平反光 板 11、 13及中间一块与水平面成一定角度的斜面反光板 12相连构成， 两块水平反 光板 11、 13的高度差 h在 0〜10mm之间， 中间的斜面反光板 12与水平面的夹角 A 在 10°〜90°之间，斜面的中心位置与透镜中轴线 C1C2的距离 D在 5mm以内，所述 Z 字形反光板整体大小 W X H不超过 100 X 100mm, 正前方设有半圆形缺口， 半径 R 在 0〜50mm之间，半圆形缺口中心设在透镜中轴线 C1C2上。所述辅助反光镜前下方 为远光侧向反光镜， 所述远光侧向反光镜由上 14、 下 15、 左 16、 右 17四组反光镜 构成， 每组由 1个或 1个以上的平面或自由曲面组合而成， 远光侧向反光镜整体可 以左右对称或不对称设计， 远光侧向反光镜整体尺寸小于 Z字形反光板整体尺寸。  As shown in FIGS. 5 and 6, the auxiliary mirror is composed of a zigzag reflector and a high beam side mirror. The auxiliary mirror is a zigzag reflector directly above, and the zigzag reflector has two different heights. The horizontal reflectors 11, 13 and a diagonal reflector 12 at an angle to the horizontal plane are connected. The height difference h between the two horizontal reflectors 11 and 13 is between 0 and 10 mm, and the intermediate slope reflector 12 and the horizontal plane. The angle A is between 10° and 90°, and the distance D between the center position of the slope and the central axis C1C2 of the lens is within 5 mm. The overall size of the Z-shaped reflector is not more than 100 X 100 mm, and the semicircle is provided directly in front. The notch, the radius R is between 0 and 50 mm, and the center of the semicircular notch is set on the central axis C1C2 of the lens. The front and lower sides of the auxiliary mirror are high beam side mirrors, and the high beam side mirrors are composed of upper, lower 15, left 16 and right 17 mirrors, each group consisting of one or more. The plane or free-form surface is combined, and the high beam side mirror can be symmetrically or asymmetrically designed. The overall size of the high beam side mirror is smaller than the overall size of the zigzag reflector.
如图 7所示， 所述辅助反光镜其动作形式为水平移动， 移动方向为汽车前后方 向， 即 Z方向， 当近光点亮时向前移动， 在透镜焦点 02位置停止； 当远光点亮时向 后移动， 即 Z轴负向，在远光侧向反光镜到达距离远光光源 d位置处停止， d在 0〜 3mm之间。  As shown in FIG. 7, the auxiliary mirror has a horizontal movement, and the moving direction is the front and rear direction of the automobile, that is, the Z direction, and moves forward when the low beam is lit, and stops at the lens focus 02 position; when the high beam point When it is bright, it moves backwards, that is, the Z-axis is negative. When the high-beam side mirror reaches the distance from the high-beam light source d, d stops between 0 and 3 mm.
如图 8所示， 所述辅助反光镜由设在其左右两侧下方的轴承***固定并导向， 所述轴承***由轴套 18、 导套 19及光轴 20构成， 轴套 18设在辅助反光镜左右两 侧下方前后位置， 轴套 18中装有导套 19， 每前后两个导套中装配有一根光轴 20， 通过导套 19， 辅助反光镜可以在光轴 20上顺畅的前后滑动。  As shown in FIG. 8, the auxiliary mirror is fixed and guided by a bearing system disposed under the left and right sides thereof. The bearing system is composed of a sleeve 18, a guide sleeve 19 and an optical shaft 20, and the sleeve 18 is provided in the auxiliary The front and rear positions of the left and right sides of the mirror are arranged, and the sleeve 18 is provided with a guide sleeve 19, and each of the front and rear guide sleeves is equipped with an optical axis 20, and the auxiliary mirror can be smoothly moved on the optical axis 20 through the guide sleeve 19. slide.
如图 7所示， 所述驱动机构 9包括支架 21、 线圈 22、 永磁体 23和带挂钩铁心 24构成电磁式驱动， 也可以是马达驱动机构等， 所述驱动机构的挂钩与辅助反光镜 底部插口插接。 如图 9、 图 10所示， 所述散热器上还固接有风扇 8、 远光供电线路 25、 近光供 电线路 26及缓冲垫片 27。 As shown in FIG. 7, the driving mechanism 9 includes a bracket 21, a coil 22, a permanent magnet 23, and a hooked iron core 24 to constitute an electromagnetic driving, or a motor driving mechanism, etc., the hook of the driving mechanism and the bottom of the auxiliary mirror The socket is plugged in. As shown in FIG. 9 and FIG. 10, the heat sink is also fixed with a fan 8, a high beam power supply line 25, a low beam power supply line 26 and a buffer pad 27.
***原理： System principle:
近光光学原理： 如图 4和图 7所示， 当近光点亮时， 辅助反光镜向前移动至透 镜 2的焦点 02位置，辅助反光镜的 Z字形反光板与主反光镜 3配合近光光源形成近 光反射***， 从近光光源 a发出的可利用光线分为 Bl、 B2两部分， 其中 B2经过主 反光镜 3反射后直接进入透镜 2折射形成照明，另一部分 B1则经过主反射镜 3反射 后需要经过可动辅助反光镜的反射再进入透镜 2折射以形成照明， 两部分光线通过 可动辅助反光镜的遮挡及反射作用形成近光的明暗截止线并在车前方较近位置处形 成宽且均匀的近光照明。  Principle of low beam optics: As shown in Fig. 4 and Fig. 7, when the low beam is lit, the auxiliary mirror moves forward to the focus 02 position of the lens 2, and the zigzag reflector of the auxiliary mirror is matched with the main mirror 3. The light source forms a low-light reflection system, and the available light emitted from the low-beam source a is divided into two parts, B1 and B2, wherein B2 is reflected by the main mirror 3 and directly enters the lens 2 to form illumination, and the other part B1 is subjected to main reflection. After the mirror 3 is reflected, it needs to be reflected by the movable auxiliary mirror and then refracted into the lens 2 to form illumination. The two parts of the light form a low-light cut-off line through the shielding and reflection of the movable auxiliary mirror and are closer to the front of the vehicle. A wide and uniform low beam illumination is formed.
远光光学原理： 如图 7和图 11所示， 当远光点亮时， 辅助反光镜向后移动至远 光光源前方 d位置，辅助反光镜的远光侧向反光镜配合远光光源形成远光反射***， 从远光光源 6发出的可利用光线分为 B3、 B4两部分， 其中 B3为直射光， 通过透镜 2折射形成照明，另一部分 B4则经过可动辅助反光镜前下方的远光侧向反光镜反射 后再进入透镜 2折射以形成照明，两部分光线通过透镜的折射可形成远处集中照明， 实现了更好的远光照明。 本实用新型对电源进行了特殊设计， 即在近光点亮时， 仅 点亮近光光源， 但在远光点亮时， 远近光光源同时点亮， 但近光光源的功率根据具 体情况会做出相应调整， 起到辅助远光照明的效果。  Principle of high beam optics: As shown in Figure 7 and Figure 11, when the high beam is lit, the auxiliary mirror moves backward to the position d in front of the high beam source, and the high beam side mirror of the auxiliary mirror is combined with the high beam source. The high-beam reflection system, the available light emitted from the high-beam source 6 is divided into two parts B3 and B4, wherein B3 is direct light, which is refracted by the lens 2 to form illumination, and the other part B4 passes through the front of the movable auxiliary mirror. The light is reflected by the side mirror and then refracted into the lens 2 to form an illumination. The refraction of the two parts of the light through the lens can form a concentrated illumination at a distance, achieving better high beam illumination. The utility model has a special design for the power source, that is, when the low beam is lit, only the low beam light source is illuminated, but when the high beam is lit, the near and far light sources are simultaneously lit, but the power of the low beam source depends on the specific situation. Make corresponding adjustments to assist the effect of high beam illumination.
辅助反光镜滑动机构原理： 如图 8所示， 所述辅助反光镜 4由设在其左右两侧 下方的轴承***固定并导向， 所述轴承***由轴套 18、 导套 19及光轴 20构成，轴 套设在辅助反光镜左右两侧下方前后位置， 轴套 18中装有导套 19， 导套与轴套过 盈紧配合， 每前后两个导套中装配有一根光轴 20， 导套与光轴为滑动配合， 通过导 套， 辅助反光镜可以在光轴上顺畅的前后滑动， 光轴则固定在如图 9所示散热器 7 的滑槽里， 滑槽位置如图 3所示的 28， 每根光轴通过两颗螺钉 10压住光轴的中部 与散热器紧固， 辅助反光镜便可在散热器的滑槽内前后滑动， 散热器滑槽的两端有 限位挡板对辅助反光镜进行前后定位， 为了消除辅助反光镜对限位挡板撞击产生过 大冲击以及发出噪声， 每个限位挡板前方安装有缓冲垫片 24。 驱动机构原理： 如图 10所示， 本实施例所述驱动机构 9固定在散热器 7底部， 其动力输出方式如图 7所示，通过带挂钩铁心 24与辅助反光镜底部插口插接来带动 辅助反光镜在 Z方向前后滑动， 驱动机构包括支架 21、 线圈 22、 永磁体 23和带挂 钩铁心 24构成电磁式驱动。与现有车灯所用电磁驱动装置不同， 由于该模组的辅助 反光镜采用了水平驱动， 非遮光板的上下拨动， 所以驱动机构无需克服负载的重力 影响， 故该装置仅在远近光切换瞬间通电， 切换到位后靠永磁体吸合并断电， 无需 靠通电长时间吸合， 从而避免了现有产品因驱动装置长时间通过大电流而造成的过 热失效。 Principle of auxiliary mirror sliding mechanism: As shown in FIG. 8, the auxiliary mirror 4 is fixed and guided by a bearing system disposed under the left and right sides thereof, and the bearing system is composed of a sleeve 18, a guide sleeve 19 and an optical axis 20 The sleeve is disposed at the front and rear positions of the left and right sides of the auxiliary mirror, and the sleeve 18 is provided with a guide sleeve 19, and the guide sleeve and the sleeve are over-tightly fitted, and an optical axis 20 is assembled in each of the front and rear guide sleeves. The guide sleeve and the optical axis are slidingly matched. Through the guide sleeve, the auxiliary mirror can smoothly slide back and forth on the optical axis, and the optical axis is fixed in the sliding slot of the heat sink 7 as shown in FIG. 9, and the position of the chute is as shown in FIG. 28, each optical axis is pressed by the two screws 10 against the middle of the optical axis and the heat sink is fastened, and the auxiliary mirror can slide back and forth in the sliding slot of the radiator, and the two ends of the radiator chute are limited. The baffle positions the auxiliary mirror back and forth. In order to eliminate the impact of the auxiliary mirror on the impact of the limit baffle and the noise, a buffer pad 24 is installed in front of each limit baffle. Driving mechanism principle: As shown in FIG. 10, the driving mechanism 9 of the embodiment is fixed on the bottom of the heat sink 7, and the power output mode thereof is as shown in FIG. 7, and is driven by the hook core 24 and the auxiliary mirror bottom socket. The auxiliary mirror slides back and forth in the Z direction, and the driving mechanism includes a bracket 21, a coil 22, a permanent magnet 23, and a belt hook core 24 to constitute an electromagnetic drive. Different from the electromagnetic driving device used in the existing lamp, since the auxiliary mirror of the module adopts the horizontal driving, the non-light shielding plate is up and down, so the driving mechanism does not need to overcome the gravity influence of the load, so the device only switches in the near and far light. Instantly energize, after switching to the position, the permanent magnet is sucked and disconnected, and it is not necessary to be energized for a long time to avoid the overheating failure of the existing product due to the long-time high current of the driving device.
所述光源、辅助反光镜及驱动机构固接在散热器上， 所述散热器上还固接有风扇 8、 远近光供电线路 25、 26及缓冲垫片 27。 如图 3所示， 散热原理： 由于 LED在工 作时会释放出大量的热， 所以对该***进行很好的热控制非常必要， 所述远光光源 5及近光光源 6直接固定在散热器 7上， 以保证 LED光源所发出的热以最快速度进 入散热器，但是由于车灯内空间有限，所以散热器的体积及散热面积受到很大局限， 所以单纯通过被动散热无法满足 LED光源的散热要求， 必须进行主动散热， 如图 10 所示， 所述散热器上固接的风扇 8可以加速散热效果， 另外为了让风扇达到更好的 散热效果， 散热翅进行了特殊设计， 即风扇正对的散热翅形状为波浪状， 以加强风 压并将气流导向最需要散热的地方。  The light source, the auxiliary mirror and the driving mechanism are fixed on the heat sink, and the fan 8 is fixed to the heat sink, and the light source power supply lines 25 and 26 and the buffer pad 27 are fixed. As shown in Figure 3, the principle of heat dissipation: Since the LED will release a large amount of heat during operation, it is necessary to perform good thermal control on the system. The high beam source 5 and the low beam source 6 are directly fixed to the radiator. 7, in order to ensure that the heat generated by the LED light source enters the heat sink at the fastest speed, but because the space inside the light lamp is limited, the volume and heat dissipation area of the heat sink are greatly limited, so the LED light source cannot be satisfied simply by passive heat dissipation. For heat dissipation, active heat dissipation must be performed. As shown in Figure 10, the fan 8 fixed on the heat sink can accelerate the heat dissipation effect. In addition, in order to achieve better heat dissipation, the heat sink fin is specially designed, that is, the fan is positive. The pair of fins are wavy in shape to enhance the wind pressure and direct the airflow to where heat is most needed.
上述参照实施例对该一种远近光一体双光源的透镜式汽车前照灯光学模组进 行的详细描述， 是说明性的而不是限定性的， 可按照所限定范围列举出若干个实施 例， 因此在不脱离本实用新型总体构思下的变化和修改， 应属本实用新型的保护范 围之内。  The detailed description of the lens type automotive headlamp optical module of the near-infrared light integrated dual light source is described in the above reference embodiment, which is illustrative and not limiting, and several embodiments may be enumerated according to the limited scope. Therefore, changes and modifications that do not depart from the general idea of the present invention are within the scope of the present invention.

Claims

权利要求书 Claim
1、 一种远近光一体双光源的透镜式汽车前照灯光学模组， 包括透镜支架、 透 镜、 主反光镜、 辅助反光镜、 光源、 驱动机构和散热器， 其特征是： 所述光源由具 有近光照明功能的近光光源及具有远光照明功能的远光光源构成两个独立发光单 元， 所述近光光源的光源中心设置在主反光镜的焦点位置， 所述远光光源的光源中 心设置在透镜的焦点附近位置； 所述主反光镜与散热器固接； 所述辅助反光镜设在 主反光镜内壁下方， 辅助反光镜前下方设有远光侧向反光镜， 辅助反光镜通过驱动 机构前后平动。  1. A lens type automotive headlamp optical module with a near-light source and a dual light source, comprising a lens holder, a lens, a main mirror, an auxiliary mirror, a light source, a driving mechanism and a heat sink, wherein: the light source is a low beam light source having a low beam illumination function and a high beam light source having a high beam illumination function constitute two independent light emitting units, wherein a light source center of the low beam light source is disposed at a focus position of the main mirror, and the light source of the high beam source The center is disposed at a position near the focus of the lens; the main mirror is fixed to the heat sink; the auxiliary mirror is disposed under the inner wall of the main mirror, and the high beam side mirror is disposed at the front lower side of the auxiliary mirror, the auxiliary mirror Through the drive mechanism before and after translation.
2、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述远光光源的光源中心与透镜焦点在 X、 Υ、 Ζ三个方向的距离范围为： X方向- 15nm〜15nm， Y方向- 15nm〜0mm， Z方向- 15nm〜15nm。 2. The lens-type automotive headlamp optical module according to claim 1, wherein: the center of the light source of the high-beam source and the focus of the lens are in three directions of X, Υ, and Ζ. The range of distance is: X direction - 15 nm ~ 15 nm, Y direction - 15 nm ~ 0 mm, Z direction - 15 nm ~ 15 nm.
3、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述辅助反光镜由 Z字形反光板及远光侧向反光镜构成， 所述辅助反光镜 正上方为 Z字形反光板， 前下方为远光侧向反光镜， 所述 Z字形反光板由左右两块 不同高度的水平反光板及中间一块与水平面呈一角度的斜面反光板相连构成整体 Z 字形反光板。  3. The lens-type automotive headlamp optical module of the near-infrared light integrated dual-light source according to claim 1, wherein: the auxiliary mirror is composed of a zigzag reflector and a high beam side mirror, The auxiliary mirror is directly above the zigzag reflector, and the front and lower sides are high beam side mirrors. The zigzag reflector is connected by two left and right horizontal reflectors of different heights and a diagonal reflector which is at an angle to the horizontal plane. Forms an integral zigzag reflector.
4、 根据权利要求 3所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述 Z字形反光板的两块水平反光板高度差为 0〜10mm， 所述斜面反光板 与水平面的夹角为 10°〜90°， 斜面反光板的中心位置与透镜中轴线的距离 5mm， 所述 Z字形反光板整体尺寸 100 X 100mm, 所述 Z字形反光板正前方设有半圆形缺 口， 半圆形缺口的半径为 0〜50mm， 半圆形缺口中心在透镜中轴线上。  The lens-type automotive headlamp optical module of the near-infrared light-integrated dual-light source according to claim 3, wherein: the height difference between the two horizontal reflectors of the zigzag reflector is 0 to 10 mm, The angle between the bevel reflector and the horizontal plane is 10°~90°, the center position of the bevel reflector is 5mm from the central axis of the lens, the overall size of the zigzag reflector is 100 X 100mm, and the zigzag reflector is directly in front of the There is a semi-circular notch, the radius of the semi-circular notch is 0~50mm, and the center of the semi-circular notch is on the central axis of the lens.
5、根据权利要求 1或 3所述的远近光一体双光源的透镜式汽车前照灯光学模组， 其特征是： 所述远光侧向反光镜由远光光源周边的多组自由曲面反光镜构成， 每组 由 1个或 1个以上的自由曲面或平面组合而成， 远光侧向反光镜整体尺寸小于 Z字 形反光板整体尺寸。  The lens-type automotive headlamp optical module according to claim 1 or 3, wherein: the high beam side mirror is reflected by a plurality of sets of free curved surfaces around the high beam source The mirror is composed of one or more free curved surfaces or planes, and the overall size of the high beam side mirror is smaller than the overall size of the zigzag reflector.
6、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述主反光镜内壁表面由多个自由曲面构成整体反光面。 6. The lens-type automotive headlamp optical module according to claim 1, wherein: the inner wall surface of the main mirror is composed of a plurality of free curved surfaces to form an integral reflective surface.
7、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述辅助反光镜由设在其左右两侧下方的轴承滑动机构固定并导向， 所述 轴承滑动机构由轴套、 导套及光轴构成， 轴套设在辅助反光镜左右两侧下方前后位 置， 轴套中装有导套， 每前后两个导套中滑动连接有光轴， 辅助反光镜通过导套在 光轴上前后滑动。 7. The lens-type automotive headlamp optical module according to claim 1, wherein: the auxiliary mirror is fixed and guided by a bearing sliding mechanism disposed under the left and right sides thereof. The bearing sliding mechanism is composed of a sleeve, a guide sleeve and an optical shaft. The sleeve is arranged at a front and rear position below the left and right sides of the auxiliary mirror. The sleeve is provided with a guide sleeve, and the optical axis is slidably connected in each of the front and rear guide sleeves. The auxiliary mirror slides back and forth on the optical axis through the guide sleeve.
8、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组，其 特征是： 所述驱动机构包括支架、线圈、永磁体和带挂钩铁心构成电磁式驱动机构， 驱动机构的铁心挂钩与辅助反光镜底部插口插接。  8. The lens-type automotive headlamp optical module according to claim 1, wherein: the driving mechanism comprises a bracket, a coil, a permanent magnet and a hook-type iron core to form an electromagnetic driving mechanism. The core hook of the drive mechanism is inserted into the bottom socket of the auxiliary mirror.
9、 根据权利要求 1所述的远近光一体双光源的透镜式汽车前照灯光学模组， 其特征是： 所述光源、 辅助反光镜及驱动机构固接在散热器上， 所述散热器上固接 有风扇、 远近光供电线路及缓冲垫片。  9. The lens-type automotive headlamp optical module according to claim 1, wherein: the light source, the auxiliary mirror and the driving mechanism are fixed on the heat sink, the heat sink The fan is fixed on the upper side, and the light supply line and the buffer pad are fixed.
PCT/CN2014/080160 2014-05-21 2014-06-18 Optical module for lenticular automobile headlamp with integrated dual light source for low beam and high beam WO2015176340A1 (en)

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