CN101251232B - Lighting device for motor vehicle - Google Patents

Lighting device for motor vehicle Download PDF

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Publication number
CN101251232B
CN101251232B CN2008100059705A CN200810005970A CN101251232B CN 101251232 B CN101251232 B CN 101251232B CN 2008100059705 A CN2008100059705 A CN 2008100059705A CN 200810005970 A CN200810005970 A CN 200810005970A CN 101251232 B CN101251232 B CN 101251232B
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CN
China
Prior art keywords
actuator
lighting device
transmission case
reflector
shadow shield
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008100059705A
Other languages
Chinese (zh)
Other versions
CN101251232A (en
Inventor
马蒂亚斯·布伦德勒
格尔德·巴恩米勒
迈克尔·哈姆
汉斯-于尔根·利帕尔特
迈克尔·哈德
约阿希姆·席恩勒
阿尔方斯·福拉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Automotive Lighting Reutlingen Germany GmbH
Original Assignee
Automotive Lighting Reutlingen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE102007050348A external-priority patent/DE102007050348A1/en
Application filed by Automotive Lighting Reutlingen GmbH filed Critical Automotive Lighting Reutlingen GmbH
Publication of CN101251232A publication Critical patent/CN101251232A/en
Application granted granted Critical
Publication of CN101251232B publication Critical patent/CN101251232B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/076—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle by electrical means including means to transmit the movements, e.g. shafts or joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/0088—Details of electrical connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
    • B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
    • B60Q1/12—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to steering position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1438—Actuating means for dimming masks or screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/11—Linear movements of the vehicle
    • B60Q2300/112—Vehicle speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/10—Indexing codes relating to particular vehicle conditions
    • B60Q2300/13—Attitude of the vehicle body
    • B60Q2300/134—Yaw
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/332—Driving situation on city roads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/333—Driving situation on suburban or country roads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
    • B60Q2300/30—Indexing codes relating to the vehicle environment
    • B60Q2300/33—Driving situation
    • B60Q2300/334—Driving situation on motorways
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

The invention relates to a device for automobile, comprising at least one headlight (1) that realizes dynamic converting light function. The headlight (1) comprises a movable light shielding plate device (11) that realizes self-adaptive light distribution. A first actuator (7) is arranged to realize dynamic converting light function and a second actuator (23) is arranged to realize the movable light shielding plate. In order to provide, on one hand, an operation unit for the converting light function and the movable light shielding plate and on another hand, to ensure responsibility of the operation unit, in particular the actuator (7, 23), providing: a gear box (24) is arranged at a reflector (5) for containing the transmission mechanism (27, 28), and both actuators (7, 23) mounted outside the gear box (25) are connected with the gear box (24) by flange.

Description

The lighting device that is used for automobile
Technical field
The present invention relates to a kind of lighting device that is used for automobile, it comprises the headlight that at least one is used to realize dynamic steering light function.This headlight comprises: can be around the reflector of vertical substantially axis of oscillation swing by first actuator; Be arranged on the light source in this reflector; And be arranged on send by this light source and/or by shadow shield device in the light path of the light of this reflector reflection, that can between at least two positions, be shifted by second actuator, wherein the difference of these diverse locations is, this shadow shield device blocks light more or less.
Background technology
This lighting device is for example known by DE 10 2,005 015 937 A1.The document discloses a kind of lighting device that comprises headlight for vehicles, and this headlight for vehicles has can be around the projected light module that is used to realize turning to dynamically the light function of vertical axis of oscillation swing by performance element.The movable stand around vertical axis of oscillation swing during headlight has static support and is supported on this stationary bracket is fixed with optical module on the movable stand.Can be provided with in this optical module be configured to roller pass through the displaceable shadow shield of another performance element.Two performance elements all are fixed on the support.Be used for realizing turning to the executive item of light function to be arranged on the case that is configured in the sealing on the support.
EP 1 591 313 A1 have disclosed the lighting device of the described type of the beginning part in addition.The document discloses a kind of lighting device that comprises headlight for vehicles equally, and this headlight for vehicles has can be around the projected light module that is used to realize turning to dynamically the light function of vertical axis of oscillation swing by performance element.The displacement frame around vertical axis of oscillation swing during this headlight has static support and is supported on this static support is fixed with optical module on the displacement frame.Being provided with in the optical module can be around shadow shield level, that be basically perpendicular to the axis overbanking of big optical axis stretching, extension, and this shadow shield can pass through the overbanking between dipped beam position and distance light position of another performance element.Two performance elements all are arranged in the case that is configured in the sealing on the displacement frame.
In these known lighting devices disadvantageously: executive item is arranged in the case of sealing fully with transmission mechanism and electric parts, and these casees constitute the actuation unit of sealing together.Executive item, gear unit and electric parts are arranged on are based on following consideration in the case of sealing: for turning to light and/or the actuation unit of a unique sealing being provided for the shadow shield operating mechanism.Yet this has shortcoming aspect heat discharging, particularly accumulation of heat can occur, occurs the function error of actuator or even malfunctioning thus.
Summary of the invention
Based on described prior art, the objective of the invention is to, described known lighting device is improved, thereby form on the one hand a common multi-functional actuation unit that not only had been used to the displacement that turns to the light function but also be used for the shadow shield device, also guarantee the reliable function of actuation unit, particularly actuator on the other hand.Improve the availability of actuation unit in a word.
In order to realize described purpose, lighting device based on the described type of the beginning part proposes, on reflector, be provided with transmission case, two actuators externally are connected with this transmission case flange, wherein the moveable portion when actuator is worked of actuator is passed in the inside that opening extend into transmission case, and in transmission case, be provided with transmission mechanism, these transmission mechanisms be used to transmit actuator moveable part motion and convert this motion the oscillating motion of reflector to or convert the shift movement of shadow shield device to.
Therefore according to the present invention, the transmission mechanism that not only is used for turning to the light function but also be used for the displacement of shadow shield is arranged on a common transmission case.This transmission case preferably has removable top cover, and wherein transmission case is sealed to prevent entering of moisture and/or dirt when covering top cover.Protect effectively thus moisture and the dirt transmission mechanism of responsive machinery especially.The basic lubricator that prevents from addition to be coated in making the headlight process on the transmission mechanism is discharged from transmission mechanism during being installed in headlight in the vehicle and pollution headlight inside.Basic lubricator remains on the transmission mechanism for a long time, keeps the long Functional Capability that turns to light function or shadow shield to move thus.If in transmission case, be provided with electric parts and/or sensor mechanism, can also protect these responsive parts to avoid dirt and moisture effectively by sealing so.
By actuator is arranged on outside the transmission case, the heat that can especially successfully duration of work be produced is discharged in the environment.Therefore can prevent the accumulation of heat in the fully sheathed case, obviously improve the Functional Capability that turns to light function and/or shadow shield displacement, obviously improve the availability of lighting device thus.In addition, in being configured to the actuator of motor, have direct relation between power of motor and the cooling: the torque capacity of motor and peak power mostly just are subject to the operating temperature of permission, and this operating temperature itself is determined by employed material (enamel-covered wire of magnet, winding etc.).Therefore, the operating current of maximum possible, torque capacity and peak power depend on that the operating temperature range between the high ambient temperature in maximum operating temperature and headlight that is adopted has much thus.This temperature range is for example at 120 ℃ to 155 ℃, and promptly temperature difference is 35 ℃.If environment temperature is higher than operating temperature, will reduce power of motor thus to the motor supply with less current so.This can cause motor can't realize being assigned to its function (shadow shield moves or turns to the light function) more reliably; The result is the headlight functional failure.This will prevent reliably by the present invention, because by heat discharging smoothly, in fact environment temperature can not be higher than the maximum operation temperature of permission.
The moveable part of actuator extend in the inside of transmission case by opening, thereby the motion of actuator can be delivered on the transmission mechanism.Transmission mechanism preferably is fixed on the lateral surface of one or more different walls of transmission case with its outside with flushing, thereby these openings cover by the actuator that is connected with the lateral surface flange of transmission case.Prevent effectively that thus dirt and moisture from entering into the inside of transmission case.Can consider actuator and with wall that the actuator flange is connected between be provided with the seal that is used to improve sealing.
Can consider in addition actuator to be fixed on the wall of transmission case by suitable fixture, wherein these fixtures can be used for the sealing of opening equally.This is not flat in the outside of fixing with lateral surface wall actuator, but useful especially under for example crooked situation.These fixtures can be realized the compensation between the flat substantially lateral surface of wall of the out-of-flatness of outside of actuator and transmission case.
Particularly when having encapsulating shell to small part, actuator actuator can be arranged on outside the transmission case, and the problem that does not cause by dirt and moisture, thereby protect the internal mechanism of actuator to avoid dirt and moisture effectively.
A kind of useful improvement according to the present invention proposes, and the shadow shield device comprises a plurality of shading plates, and these shading plates can move around rotation level, that be basically parallel to big optical axis stretching, extension relative to one another.A kind of useful especially embodiment of the present invention proposes, and the shadow shield device has static shading plate and at least one can be around the shading plate of rotation displacement.Propose especially, the shadow shield device has at least two can be around the shading plate of rotation displacement.Preferred shadow shield device matches with cam drive, thereby described or each shading plate can move along the control cam of attaching troops to a unit in corresponding shading plate.So the shadow shield device of design is known by DE 10 2,005 012 303 A1.Quoting the document aspect the 26S Proteasome Structure and Function of this shadow shield device, the corresponding contents of the document also is the application's a theme.Than centering on shadow shield level, that be basically perpendicular to the axis overbanking of big optical axis stretching, extension, this shadow shield device has obviously little advantage of requisite space.Can realize that multiple different light distributes by the shading plate of respective numbers and the respective design of control cam in addition.
Transmission case can be the integrated component part branch of reflector.But according to the useful improvement of another kind of the present invention is proposed, transmission case and the actuator that is connected with its flange are configured to the unit that can operate separately that separates with reflector.This has following advantage: identical actuation unit can be fixed on the reflector of different designs all the time, for example be fixed on the reflectors of different sizes, perhaps be fixed on and be used to the reflector of keeping to the right and keeping left.Manufacturing cost and warehouse cost can be reduced thus, and the installation of lighting device can be simplified and quicken.
Preferred embodiment propose according to of the present invention another, transmission case is fixed on the reflector adjacent to each other.Wherein near the meaning is, use for example suitable fixed mechanism that is used for fixing of screw, bonding agent etc. probably, thereby transmission case is fixed on the reflector directly, but not for example is fixed on the displacement frame that surrounds reflector.This means and to save the displacement frame, fixing reflector on this displacement frame and the displacement frame can swingingly be arranged in the support around vertical axis of oscillation.In this case, directly be provided with on reflector, preferably construct the proper supporting device integratedly with reflector, reflector can swingingly remain on the support around vertical axis of oscillation by these bracing or strutting arrangements.
Can consider in transmission case, to be provided for controlling at least one the printed circuit board in two actuators.Sensor mechanism and other electric parts can be set in transmission case in addition.This sensor mechanism preferably includes the rotary angle transmitter and/or the Hall element of induction, so that record the swing position of reflector and/or the shift position of shadow shield device.Can check correct control and normal control function thus, perhaps realize control the displacement that turns to light function and shadow shield device.
The reflector that can swing preferably can whole swing the part of the optical module that comprises reflector, light source, shadow shield device and projecting lens.This optical module is also referred to as the projected light module.
First actuator and/or second actuator be motor, particularly stepper motor preferably.Useful especially is that two actuators are provided with spaced reciprocally, preferably are arranged on the different walls of transmission case, are intended to improve the heat discharging.According to preferred embodiment a kind of, first and second motors are connected with the transmission case flange, thereby the axle of motor is about each other at an angle of 90.
Description of drawings
Describe the preferred embodiments of the present invention below with reference to the accompanying drawings in detail.Shown in the figure:
Fig. 1 is the stereogram of observing from oblique upper according to a kind of headlight of lighting device of the present invention of preferred implementation;
Fig. 2 is the stereogram from the headlight of Fig. 1 of beneath;
Fig. 3 is the stereogram of transmission case when top cover is opened according to a kind of lighting device of the present invention preferred embodiment from oblique beneath;
Fig. 4 is the stereogram of transmission case when top cover covers from Fig. 3 of oblique upper observation; With
Fig. 5 illustrates the shadow shield device according to a kind of headlight of lighting device of the present invention preferred embodiment.
The specific embodiment
In Fig. 1, the headlight of lighting device of the present invention indicates Reference numeral 1 on the whole at it.Headlight 1 comprises support 2, and this support remains in unshowned housing headlight 1 or lighting device to center on horizontal axis 4 tiltable modes by the suspension arrangement 3 of two sides.The illumination distances that support 2 is used to regulate headlight 1 with respect to the controllable displacement of the inclination of housing.
Headlight 1 comprises reflector 5, and this reflector can swingingly be supported in the support 2 around vertical axis of oscillation 6.Reflector 5 is made by the plastics that have suitable reflection plated film, perhaps is made of metal, and is for example made by aluminium diecasting.In order to support, on the top side of reflector 5 and/or bottom side, be configured with the proper supporting part.By reflector 5 swing around axis of oscillation 6, can realize turning to the light function dynamically, that is to say that reflector 5 is according to steering angle, in case of necessity also according to other parameter, for example swing such as car speed, vehicle yaw ratio.In order to realize the swing of reflector 5, be provided with first actuator 7, this first actuator is a stepper motor and controlled according to steering angle and other parameter.Reflector 5 preferred ovalizes or be different from oval-shaped arbitrary shape.
Headlight 1 comprises light source in addition, and this light source is gas-discharge lamp in the present embodiment.Light source is by extending in the inside of reflector 5 in the apex region of opening at this reflector in the zone backwards of reflector 5, thereby in the zone of first focus of the reflector 5 of ellipse or approximate ellipsoidal, be provided with electric arc, in order to produce light, in the glass envelope of light source, this electric arc is lighted and kept lighting.Light source itself is not shown in the drawings.Light and the control appliance of gas-discharge lamp indicate Reference numeral 8.By fixture 9 projecting lens 10 is fixed on the reflector 5.
Headlight 1 has the shadow shield device in addition, this shadow shield device be arranged on send by light source and/or the light path by the light of reflector 5 reflection in.The shadow shield device be can't see in Fig. 1, but is shown specifically in Fig. 5.The shadow shield device indicates Reference numeral 11 on the whole at it, and comprises two shading plates 12 and 13 in the embodiment shown.These two shading plates can be around rotation 14 displacement in opposite directions relatively.Rotation 14 essentially horizontally and the optical axis that is parallel to headlight 1 stretch.Be configured with control cam 14 and 15 in the shading plate 12,13 respectively, can see, these control cams have configurations differing from one.
Shadow shield device 11 matches with cam drive 16, thereby shading plate 12,13 can move along the control cam 14,15 of attaching troops to a unit in them.In the embodiment shown, cam drive 16 comprises can be around the wheel 18 of rotation 17 rotations, and this is taken turns for example to be driven by the tooth 19 on the excircle that is arranged on wheel 18 and can to center on axis 17 and rotatablely move.In this case, the guide protrusions 20 of cam drive 16 extend in the control cam 14,15, and causes moving upward and/or moving downward of shading plate 12,13 at wheel 18 when axis 17 rotates.Replace wheel 18 with guide protrusions 20, also can use simple crank part, it can and have guide protrusions according to guide protrusions 20 types around axis 17 rotations.In embodiment shown in Figure 5, wheel 18 is integrated into crank part as the last drive of the transmission mechanism 28 (referring to Fig. 3) that is used for making that shadow shield device 11 moves.Self-evident, wheel 18 and crank part can be independent parts.Shading plate 12,13 has respectively and has the top edge 21 and 22 of shape separately.Can see that the shape of the top edge 21,22 of two shading plates 12,13 differs from one another.By the motion up or down of shading plate 12,13, the different piece of the top edge 21,22 of definite shading plate 12,13 constitutes the effective whole top edge of shadow shield device 11 respectively.Than the shadow shield of the axis overbanking that can center on optical axis stretching, extension level, that be basically perpendicular to headlight, shadow shield device 16 has the especially little advantage of structure.In addition, can realize that multiple different light distributes by the shading plate 12,13 of respective numbers and the respective design of control cam 14,15.Displacement by shadow shield device 11 can realize that adaptive light distributes.
Shadow shield device 11 is arranged in the headlight 1 as follows, and promptly the effective whole top edge of shadow shield device 11 is arranged in the zone of second focus of reflector 5 of ellipse or approximate ellipsoidal.In order to make shadow shield device 11 displacement, headlight 1 has second actuator 23, according to desirable light distribute (for example dipped beam, distance light; Highway lamp, rural highway lamp, city lamp, rain lamp etc.) control this second actuator.Actuator 23 preferably is motor, particularly stepper motor equally.
In order to realize turning to the light function, light source, projecting lens 10 and shadow shield device 11 are swung around vertical axis of oscillation 6 with reflector 5.These parts form optical module, and this optical module is so-called projected light module in the present embodiment.Lighting equipment 8 and actuator 7,23 swings with optical module.
Headlight 1 has transmission case 24 in its bottom side, and this transmission case can be clear that in Fig. 2 and is shown specifically in Fig. 3.Transmission case 24 preferably is made of plastics, and has the matrix 25 and the top cover 26 of shelly, and top cover is used to cover matrix 25, helps protecting the inside of transmission case 24 to avoid dirt and moisture thus.In transmission case 24, be provided with transmission mechanism 27,28, be used to transmit motor 7,23 axle rotatablely move and with this rotatablely move swing (transmission mechanism 27) that converts optical module to or the shift movement (transmission mechanism 28) that converts shadow shield device 11 to.Transmission mechanism 27 for example is a column gear transmission mechanism, and transmission mechanism 28 is Bevel Gear Transmission mechanism or crown gear transmission mechanism.With regard to the crown gear transmission mechanism, common pinion and crown gear engagement with columniform end face tooth.Be configured to independent parts if take turns 18 (referring to Fig. 5) and crank element in shadow shield device 11, wheel 18 can be arranged in the transmission case 24 with the remaining part of transmission mechanism 28.Can be provided with printed circuit board 40, sensor mechanism in addition in the inside of transmission case 24 and other is used to control the electric parts of motor 7,23, but among Fig. 3 and not shown these electric parts.By transmission mechanism 27,28 is arranged in the transmission case 24, can protect transmission mechanism 27,28 to avoid dirt and moisture effectively.On the other hand, the remaining zone of in case 24, leaving lubricant and can not polluting headlight 1, wherein when having made headlight this lubricant conduct substantially lubricator be applied in the transmission mechanism 27,28 or on.
Two motors 7,23 externally are connected with transmission case 24 flanges.In this way, actuator 7,23 can especially successfully be discharged to the heat that produces during operation in the environment.Be provided with opening on some walls of transmission case 24, for example the axle of the rotation when motor 7,23 work of motor 7,23 extend in the inside by these openings, thereby the motion of actuator 7,23 can be delivered on the transmission mechanism 27,28.Equally, the output mechanism 30 that is used for the output mechanism 29 of shadow shield displacement and is used to turn to the light function is protruding by the corresponding opening at the wall of transmission case 24, is used to make optical module to apply the corresponding sports that is used for 11 displacements of shadow shield device with respect to the corresponding sports of support 2 swings or to wheel 18 thereby can apply to support 2.These openings preferably seal, and enter to prevent dirt and moisture.Can be provided with independent seal for this reason.Can between top cover 26 and housing 25, be provided with one or more seals equally.This sealing only just can be provided with when being arranged on actuator 7,23 outside the transmission case 24 according to the present invention, thereby accumulation of heat can not occur in case 24 inside.
Motor 7,23 is cylindrical respectively.On their front end face, be provided with the fixture of flange 31 forms, be used for motor 7,23 is fixed, preferably is tightened in the lateral surface of the corresponding wall of transmission case 24.Flange 31 can be the part of the encapsulating shell of motor 7,23. Actuator 7,23 with its flat end face be fixed on the lateral surface of wall of transmission case 24, thereby the opening on these walls covers by the actuator 7,23 that is connected with the lateral surface flange of transmission case 24.Prevent effectively that thus dirt and moisture from entering into the inside of transmission case 24.Can consider between the end face of actuator 7,23 and these walls and lateral surface that actuator 7,23 flanges are connected, to be respectively equipped with the additional seal that at least one is used to improve sealing.
For example can be clear that transmission case 24 and the motor 7,23 that is connected with its flange are configured to the multi-functional actuation unit that separates with reflector 5 by Fig. 4.Transmission case 24 is fixed, preferably is tightened on the bottom side of reflector 5.Be configured with spacing holder (Abstandshalter) 32 and 33 (or head of screws) of hollow cylindrical in top side transmission case 24 (referring to Fig. 4) or housing 25 for this reason.They have vertical hole respectively, are used for the screw that transmission case 24 is fixed on the reflector 5 can be passed this vertical hole.In order to be installed on the reflector 5, transmission case 24 is placed on the bottom side of reflector 5 from the below.Simultaneously, output mechanism 29,30 is inserted in the corresponding storing apparatus of linkage 39 shadow shield device 11 or support 2.Linkage 39 comprises the lever and the connecting rod that is connected with support 2 by hinge and this lever on the output mechanism 30 that is pressed onto oscillatory gearing mechanism 7.
Transmission case 24 is supported on the reflector 5 by spacing holder 32,33.So under the situation of opening top cover 26, screw passes spacing holder 32,33 and is tightened on the relevant position of reflector 5 from the inside of transmission case 24.On reflector 5, be configured with the storing apparatus that is applicable to screw.Can on transmission case 24, be provided with additional fixed mechanism, Fu Jia hole 37,38 for example, screw can pass these holes equally and be fixed on the reflector 5.Self-evident, can consider otherwise, for example case 24 is fixed on the reflector 5 by adhering device or clamping apparatus or clip means.
Transmission case 24 has metal coating in the part at least, for example lights the electromagnetic interference that causes by the electric arc of gas-discharge lamp so that can prevent.Power lead and/or pilot 34 contact with electric parts in the transmission case.Lead 34 is also by can be extend in the inside by the corresponding hole of additional seal sealing in transmission case 24.End at lead 34 is provided with plug 35, thereby corresponding (unshowned) components bonding on lead 34 and control appliance, the driver element or engage with corresponding component on the end of another lead of control appliance or driver element electrically contacts with it thus.Be provided with socket piece 36 on the equipment 8 lighting, be used for to be inserted into this socket piece with another corresponding (unshowned) plug that electrically contacts of lighting equipment 8 and light source.Certainly associate, socket piece 36 can contact with electric parts in the transmission case 24 by another lead, thereby can electrically contact the whole headlight 1 that is used for repertoire (activation of light source, dynamically turn to light, the distribution of adaptive light) by plug 35.
Therefore in a word, can propose a kind of lighting device with headlight to be electrically contacted 1, this headlight is compact especially, be easy to install and with low cost, can protect this headlight especially to avoid moisture and dirt in addition especially well.

Claims (17)

1. a lighting device that is used for automobile comprises at least one headlight that is used to realize dynamic steering light function (1), and described headlight (1) comprising:
Can be by first actuator (7) around the reflector (5) of vertical substantially axis of oscillation (6) swing;
Be arranged on the light source in the described reflector (5); With
Be arranged on send by described light source and/or by in the light path of the light of described reflector (5) reflection, by second actuator (23) displaceable shadow shield device (11) between at least two positions, wherein the difference of these diverse locations is, described shadow shield device (11) blocks light more or less
It is characterized in that, on described reflector (5), be provided with transmission case (24), described two actuators (7,23) externally be connected with described transmission case (24) flange, the moveable portion when described first actuator (7) is worked of wherein said first actuator (7) is passed in the inside that opening extend into described transmission case (24), the moveable portion when described second actuator (23) is worked of described second actuator (23) is passed in the inside that opening extend into described transmission case (24), and in described transmission case (24), be provided with transmission mechanism (27,28), these transmission mechanisms are used to transmit described two actuators (7, the motion of moveable part 23) also converts described motion the oscillating motion of described reflector (5) to or converts the shift movement of described shadow shield device (11) to.
2. lighting device as claimed in claim 1, it is characterized in that, described shadow shield device (11) comprises a plurality of shading plates (12,13), and the rotation (18) that these shading plates can stretch around optical axis level, that be basically parallel to described headlight (1) relative to one another moves.
3. lighting device as claimed in claim 2 is characterized in that, described shadow shield device (11) has static shading plate and at least one can be around the shading plate (12,13) of described rotation (18) displacement.
4. as claim 2 or 3 described lighting devices, it is characterized in that described shadow shield device (11) has at least two can be around the shading plate (12,13) of described rotation (18) displacement.
5. lighting device as claimed in claim 3, it is characterized in that, described shadow shield device (11) matches with cam drive (16), thereby described displaceable shading plate (12,13) can move along the control cam (14,15) of attaching troops to a unit in corresponding shading plate (12,13).
6. as each described lighting device in the claim 1 to 3, it is characterized in that described transmission case (24) and described two actuators (7,23) that are connected with its flange are configured to the unit that can operate separately that separates with described reflector (5).
7. lighting device as claimed in claim 6 is characterized in that, described transmission case (24) is fixed on the described reflector (5) adjacent to each other.
8. as each described lighting device in the claim 1 to 3, it is characterized in that, in described transmission case (24), be provided with and be used for controlling at least one printed circuit board of described two actuators (7,23).
9. as each described lighting device in the claim 1 to 3, it is characterized in that, in described transmission case (24), be provided with sensor mechanism.
10. lighting device as claimed in claim 9 is characterized in that, described sensor mechanism has the rotary angle transmitter and/or the Hall element of induction, so that record the swing position of described reflector (5) and/or the shift position of described shadow shield device (11).
11. as each described lighting device in the claim 1 to 3, it is characterized in that the described reflector of swinging (5) is the part of the optical module that comprises described reflector (5), described light source, described shadow shield device (11) and projecting lens (10) that can whole swing.
12., it is characterized in that described first actuator (7) is a motor as each described lighting device in the claim 1 to 3.
13. lighting device as claimed in claim 12 is characterized in that, described first actuator (7) is a stepper motor.
14., it is characterized in that described second actuator (23) is motor preferably as each described lighting device in the claim 1 to 3.
15. lighting device as claimed in claim 14 is characterized in that, described second actuator (23) is a stepper motor.
16. lighting device as claimed in claim 12 is characterized in that, described second actuator (23) is motor preferably.
17. lighting device as claimed in claim 16 is characterized in that, described first actuator (7) is connected with described transmission case (24) flange with described second actuator (23), thereby the axle of these motors is about each other at an angle of 90.
CN2008100059705A 2007-02-20 2008-02-20 Lighting device for motor vehicle Expired - Fee Related CN101251232B (en)

Applications Claiming Priority (4)

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DE102007008646A DE102007008646B4 (en) 2007-02-20 2007-02-20 Lighting device for a motor vehicle
DE102007008646.8 2007-02-20
DE102007050348.4 2007-10-11
DE102007050348A DE102007050348A1 (en) 2007-02-20 2007-10-11 Lighting device for motor vehicle, has reflector, light source and/or diaphragm arrangement adjustably arranged above gear that comprises crown wheel arranged on gear shaft, where crown wheel cooperates with bevel provided in motor shaft

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CN101251232A CN101251232A (en) 2008-08-27
CN101251232B true CN101251232B (en) 2011-04-13

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FR (1) FR2912707B1 (en)

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DE102007008646A1 (en) 2008-08-21
CN101251232A (en) 2008-08-27
FR2912707A1 (en) 2008-08-22
FR2912707B1 (en) 2015-10-30
DE102007008646B4 (en) 2012-09-20

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