CN103363449A - Projection light module with adjustable light screen - Google Patents
Projection light module with adjustable light screen Download PDFInfo
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- CN103363449A CN103363449A CN2013101032429A CN201310103242A CN103363449A CN 103363449 A CN103363449 A CN 103363449A CN 2013101032429 A CN2013101032429 A CN 2013101032429A CN 201310103242 A CN201310103242 A CN 201310103242A CN 103363449 A CN103363449 A CN 103363449A
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- shadow shield
- light module
- projected light
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- 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
- F21S41/689—Flaps, i.e. screens pivoting around one of their edges
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The invention relates to a projection light module with a light source. Light beams of the light source are converged in first light distribution by a main optical device. The first light distribution is disposed in a shading plane of the projection light module. The projection light module is provided with an image optical device, and the image optical device is set to project the first light distribution to second light distribution which is disposed on a front area of the projection light module. The projection light module is provided with a light screen and a regulation driver. The regulation driver is set to regulate an optical effect arris (22) of the light screen (20) through regulation movement of the light screen between a first regulating position and a second regulating position (44), wherein the projection light module (10) is provided with a magnetic braking device. The braking device is set to delay the regulation movement of the light screen (20) when the light screen (20) gets close to the first regulating position (42) and/or the second regulating position (44), or when the light screen (20) passes through the first regulating position (42) and/or the second regulating position (44).
Description
Technical field
The present invention relates to a kind of projected light module as described in the preamble by claim 1.
Background technology
This projected light module itself be known and have light source, primary optics, with shadow shield and the secondary optics of adjusting driver, also become the image optics device.The projected light module is set to by structure and the layout of light source and primary optics, so that during the light beam of light source distributed to the first light by the primary optics constriction, this first light distributed and is arranged in the shading plane of projected light module.At this, the shading plane limits by the position at the optical effect edge of shadow shield.Adjusting driver is set to, and the optical effect arris of shadow shield is moved in the distribution of the first light and from wherein moving out.Secondary optics is set to by its structure and layout, and the second light that the distribution of the first light is projected to the front area that is arranged in the projected light module distributes.
This projected light module is used to produce various light distributions at the travel of the front area of motor vehicle in motor vehicle.Position according to the optical effect arris of shadow shield, be also referred to as the shadow shield arris below it, the second light that produces distributes and for example is called the dipped beam distribution, distributes hereinafter referred to as " dipped headlights " or distance light, hereinafter referred to as " high beam ", being set forth in this and not meaning that exhaustive of this alternate ways.When moving out, the distribution of the first light produces high beam at the shadow shield arris.Otherwise, when the shadow shield arris is moved in the distribution of the first light, produce dipped headlights, because then the shadow shield arris is projected in the distribution of the second light as the bright-dark line of demarcation.
Known have a multiple possible mode be used to realizing movable shadow shield arris, and this shadow shield arris is by means of rotating mechanism, slew gear, slide mechanism or switching mechanism work.
Must switch between the running status of dipped headlights and high beam very fast in road traffic, that is to say, realize in second part, therefore movable shadow shield for example attracts magnet to accelerate usually by adjusting driver.Then the shadow shield that accelerates stops at the dipped headlights position by means of fixed stop, and at this, shadow shield collides on the location backstop that is arranged on the primary optics.Because in order to guarantee high temperature tolerance and stability requirement in headlamp, shadow shield and primary optics all are made of metal, so the metallic impact noise of the collision of shadow shield on primary optics usually.
Even if can hear in the motor vehicle front shadow shield metal impact noise of often not wished by the driver in the headlamp outside, especially when engine does not move.Usually be funnelform primary optics because the structure of its hollow has additionally been strengthened the sound wave transmission.In addition, in view of the continuous popularization of the faint electric motor vehicle of noise, the faint headlamp of noise is also significant.
Using movable shadow shield mechanism is technical expending and therefore expensive possible mode, and wherein realize by stepper motor driver the location of shadow shield.
Summary of the invention
Under aforementioned background, therefore the objective of the invention is, correspondingly construct and expand the projected light module of the automotive headlight of the described type of design beginning so that when between adjusting position, switching because on the shadow shield collision primary optics or surround undesirable noise that the support of primary optics produces and reduced or if possible even fully avoid.
This purpose reaches by the feature of claim 1.Be characterised in that by projected light module of the present invention, to before running into primary optics, effectively be slowed down from the shadow shield of high beam position acceleration by the measure that technology is simple and cheap, thus the noise producing when therefore having reduced impact velocity and having reduced collision.
Realize thus the deceleration of shadow shield, that is, put on the magnetic force of the inertia force adverse effect of shadow shield.
Magnetic force preferably passes through at least one magnet to producing, and this magnet is to comprising two magnets that mutually repel.Use magnet paired, that mutually repel to make it possible to select neatly action direction and the active position of magnetic force, so that the present invention can be applicable to multiple known shadow shield mechanism, on rotation, revolution, slip or switching mechanism.
Advantageously, select so the right energy density of magnet and/or quantity, so that the balance between the dipped headlights position of shadow shield formation magnetic force and reset force.Between the intensity of magnetic force and two magnets cube of spacing be inversely proportional to (source: https: //www.hkcm.de/magnet.php/? dnx=8﹠amp; Oh=1).Therefore, shadow shield is the closer to the dipped headlights position, and magnetic force correspondingly increases.In addition, also relevant with material, volume and shape or the length/diameter-ratio of magnet in the determining deviation of the intensity of magnetic force between two magnets.The characterisitic parameter of summarizing these relations of magnetic force is called energy density, and it is long-pending to be also referred to as energy product or BH-.This characterisitic parameter is described the whole field energys that are stored in the magnet, and therefore forms the magnetic energy relevant with the volume of magnet.Therefore, determine by energy density and the right quantity of magnet of employed magnet at the magnetic force of dipped headlights position overall function.Otherwise reset force increases with the spacing of shadow shield and dipped headlights position linearly.Therefore, can be by coordinating the right quantity of employed material and magnet and the reset force of shadow shield, so that produce reset force and the dynamic balance between the magnetic force of this position effect of shadow shield mechanism in the dipped headlights position, shadow shield mechanism moves on the dipped headlights position shadow shield.Magnetic force and elastic force work in opposite direction at this.On the equilbrium position, produced the potential energy minimum of a value.Therefore, shadow shield is braked and remains on this position.
At this especially advantageously, right the first magnet and the second magnet of magnet arranged with a spacing relative to each other in the dipped headlights position.This spacing should be determined size like this, so that owing to its inertia force does not contact with primary optics or reflector with the shadow shield that the amplitude that reduces swings around the dipped headlights position.This spacing is relevant with weight and the acceleration of shadow shield.This spacing is preferably 2-3mm.
Therefore, guaranteed that in simple mode shadow shield is in contactless final position, dipped headlights position.Headlamp is somebody's turn to do " contactless backstop " so that can switch to the second adjusting position (for example dipped headlights position) from the first adjusting position (for example high beam position) to noiseless.
A kind of preferred form of implementation of the present invention is designed to, and adjusting driver comprises attraction armature and back-moving spring.This adjusting driver preferably is embodied as electro permanent magnetic ground and attracts magnet, and this attractions magnet is set to, and makes when attracting the coil of magnet at electric current to attract armature motion in the position by the backstop restriction, and remains in this position.The attraction armature of shadow shield and adjusting driver is coupled like this, so that attract the attractive motion that armature leads to adjusting driver that shadow shield is attracted the high beam position from the dipped headlights position.
Also preferably, adjusting driver further improves the rate of tension of back-moving spring the transitional processes from the dipped headlights position to the high beam position.This has such advantage, produces reset force the transitional processes from the dipped headlights position to the high beam position, moves when adjusting driver does not produce at other direction, and then this reset force triggers and automatically gets back to the dipped headlights position.This is favourable, because right cocoa for example attracts magnet to use simple adjusting driver, it only applies magnetic force in a direction.Then, reseting movement is driven by flexible reset force.
Another advantage is that when adjusting driver can not apply driving force (this for example occurs), flexible reset force triggers and is returned to the dipped headlights position in the situation of adjusting driver fault.Disappear if for example be used as the power supply of the attraction magnet of adjusting driver, be automatically moved to the dipped headlights position and avoid dazzling of oncoming vehicle.
A kind of preferred form of implementation is designed to, and the first right magnet of magnet is arranged on the leading edge of primary optics, and the second right optics of magnet is arranged on the shadow shield.In this layout, the present invention for shadow shield by prior art known be coupled easy especially must the realization for the mechanism.For this reason, right the first magnet of magnet is for example by on the appropriate location that is bonded and fixed at shadow shield.The second magnet is fixed on primary optics and the first magnet on relative position, dipped headlights position.For example can consider bonding as simple fixed form, but can consider other fixed forms.
A kind of particularly preferred form of implementation is defined as, and is provided for holding the groove of magnet in shadow shield and/or primary optics.Construct like this these grooves, so that magnet can be pressed in these grooves.Realize that thus cheap, firm and scheme heatproof fixes magnet.
Also advantageously, magnet is to comprising at least one permanent magnet.Permanent magnet can be made a big purchase in large quantities at an easy rate and therefore can technology simply also produce at an easy rate by magnetic force required for the present invention by using permanent magnet.
Also advantageously, permanent magnet is made by compression and/or sintering.Permanent magnet is formed by corresponding powders compression and/or sintering.Thus can be with many, almost shape is made magnet arbitrarily, and these shapes are particularly suitable for being coupled in the groove of for it design.
The temperature that occurs at shadow shield when also preferably, the material of permanent magnet moves in accordance with regulations with the projected light module is selected relevantly.Permanent magnet has so-called Curie-temperature with the material of being made by it relevantly, and when surpassing this temperature, magnetic will irreversibly disappear.Usually, magnetization is unsettled under the temperature more than the absolute zero, yet can provide a temperature range for relevant material when reality is used, and inevitably demagnetization is fine slowly carried out in this temperature range.Therefore guaranteed that required magnetic force remains unchanged in the whole life-span of headlamp.
Be designed in a kind of alternative structure, the projected light module has at least one additional magnet pair, and wherein, additional magnet is to having the magnetic force of attraction, and its action direction is perpendicular to the action direction of the inertia force of shadow shield.The right attraction magnetic force of additional magnet is perpendicular to the magnetic force that repels and perpendicular to the inertia force of shadow shield, its buffering ground acts on the swing that shadow shield centers on the dipped headlights position.Thus, this being arranged in realized the stable of dipped headlights position in the situation that does not have fixing mechanical stop.
Another advantage that the side applies, the magnetic force that attracts is that this magnet has produced static friction and equally stably acted on thus the shadow shield position by the surface pressing of side in the bearing of the rotating shaft of shadow shield.
In addition, prevent on the one hand that along the attraction magnetic force of rotating shaft effect shadow shield from moving along rotating shaft, and therefore so that minimize in the tolerance of shadow shield along the longitudinal register of rotating shaft.
Preferably, additional magnet is right the first magnet and the second magnet are arranged with a spacing relative to each other in the dipped headlights position.Guaranteed shadow shield contactless final position when the dipped headlights function in simple mode thus.This contactless final position is so that headlamp almost switches to the dipped headlights position from the high beam position to noiseless.
A kind of preferred embodiment regulation, shadow shield is made by paramagnetic material.In paramagnetic material, atom, lewis' acid has magnetic torque.If paramagnetic material is placed in the magnetic field, then atom, lewis' acid, briefly its basic magnet is parallel to the external magnetic field orientation.This so that the magnetic field in the material strengthened.All basic magnets align when it, this paramagnetic material can be regarded as the second right magnet of magnet at the moment.In desirable paramagnet, each magnetic torque is separated from each other.Therefore internal magnetic field warm-up movement owing to particulate after away from the external magnetic field is disintegrated.Therefore, can be at the magnetic force that produces in to the situation that does not need the second magnet for additional magnet by attraction required for the present invention.It is enough in primary optics a strong as far as possible magnet being set, and when the additional magnet of shadow shield close enough, this magnet can induce magnetic field in the shadow shield of paramagnetic.
Other advantage is drawn by dependent claims, specification and accompanying drawing.
Be interpreted as, in the combination that aforesaid and feature that further specify later not only can be applicable to provide respectively, and can be applied in other combination or separately use, do not depart from scope of the present invention.
Description of drawings
Shown in the drawings and the in the following description detailed description of embodiments of the invention.Illustrate with the form of illustrating respectively in the accompanying drawings:
Fig. 1 is the operation principle as the projection headlamp of technical field of the present invention;
Fig. 2 is the first form of implementation by projection headlamp of the present invention;
Fig. 3 is the shadow shield that is in high beam position and dipped headlights position;
Fig. 4 is the second form of implementation of the present invention.
At this, identical Reference numeral represents respectively identical in each view or identical parts of function at least.
The specific embodiment
Fig. 1 has illustrated the projection headlamp 10 that is used for motor vehicle with schematic diagram, with light source 12, converges the element 18 of the light 14 of light source 12, has shadow shield 20 and the projection optical device 24 of shadow shield arris 22.Described parts 12,18,20 and 24 arrange like this along the optical axis 26 of headlamp 10, so that the light 14 that element 18 constrictions are sent by light source 12, and towards shadow shield arris 22, so that the first light that forms by shadow shield arris 22 limited boundaries at shadow shield arris 22 distributes.
Projection optical device 24 is set to and arranges like this, so that distributing the first light, this projection optical device is projected in the front area of headlamp 10 as the second light distribution 28, wherein, shadow shield arris 22 distributes in 28 at the second light and is projected in the second light as bright-dark-line of demarcation 30 and distributes between 28 brighter zones 32 and the darker zone 34.
Carry out like this projection at this, so that shadow shield 20 reversings and side reversally project in the front area of motor vehicle.Therefore, in should satisfying the projection headlamp 10 of dipped headlights function, brighter zone 32 is positioned at below the horizon.Thus, darker zone 34 is positioned at more than the horizon, avoids or has alleviated at least dazzling to oncoming vehicle.The shadow shield arris 22 common section's sections that design symmetrically and for example have 15 ° of angles declines of one-tenth from the optical axis 26s to the side, this section is projected in the second light distribution 28 as the arris that rises.Thus, can be as everyone knows not towards oncoming vehicle the motor vehicle side illuminated at a distance.
In a kind of alternative structure, light source 12 is arrays of semiconductor light sources or semiconductor light sources.Semiconductor light sources, especially light emitting diode be the half space radiator normally, and therefore different from incandescent lamp and gas-discharge lamp, and they almost can be regarded as the light source 12 of isotropism eradiation.For this reason, adopt another element that converges light 18 for the semiconductor light sources as light source 12.
Different from many ellipsoid-reflectors of ambient light source 12 more or less is, in the situation of semiconductor light sources as light source 12, only needs the reflector 18 of half side encirclement, and this reflector also should have oval-shaped basic configuration.The view that corresponds to Fig. 1 this means that wherein the reflector shown in the Lower Half 14 can omit.
Substitute this conduct and converge half shelly reflector of optical element 18, can also use the additional optical components of being made by optical material for the light source 12 that is embodied as semiconductor light sources or arrays of semiconductor light sources, its accept light source 12 light 14 and by the refraction of light entrance face and light-emitting face and by the total internal reflection constriction that carries out in optical material inside on the boundary face of side, and point to shadow shield arris 22.
Projection optical device 24 is convex lens in a kind of structure, and it arranges like this, so that the focus of its reflector side is positioned on the shadow shield arris 22 in the first photodistributed scope.Then shadow shield arris 22 is projected in the second light in the motor vehicle front end zone as obvious bright-dark-line of demarcation 30 and distributes in 28.
Fig. 2 shows the first structure by projection headlamp 10 of the present invention.Cartesian coordinate system represents the installation site of projection module when using in accordance with regulations in motor vehicle, and wherein, X-axis is pointed to radiation direction or travel direction.Y-axis is parallel to the transverse axis of motor vehicle, and the z-axle represents the longitudinal axis of motor vehicle.
In the first structure, gas-discharge lamp comprises glass bulb 35 and igniter 37.Projection optical device 24 is by lens carrier 36 clampings.Lens carrier 36 follows to be sailed direction and sees on the leading edge 38 that is fixed on reflector 18.The leading edge 38 of reflector 18 also can form by support, and reflector 18 is fixed on this support.
Be provided with shadow shield 20 in projection optical device 24 and reflector 18 supports.In Fig. 2, shadow shield 20 is shown in two at the adjusting position of following explanation.Adjusting driver 40 is arranged on the below of projection module, and is fixedly connected with support 36.Adjusting driver 40 has moving element, and this moving element and shadow shield 20 are coupled.
Adjusting driver 40 preferably is embodied as the electromagnetic attraction magnet, and it is set to, and makes moving element at electric current when attracting the coil of magnet, for example attracts armature motion to the position that limits by backstop and remains on this position.
Irrelevant with the structure of adjusting driver 40, preferably, each position distribution of shadow shield arris 22 limits by the final position of adjusting driver 40.Thus, especially the mechanical stop of bright-dark-marginal position by adjusting driver 40 limits, and this allows accurately and the marginal position of capable of adjusting brightness repeatedly.Attract in the armature simple, it preferably has for the first backstop of outflow location with for the second backstop that attracts the armature inflow location.Inflow location preferably is equivalent to the first adjusting position 42 of high beam position or shadow shield arris 22, and outflow location preferably is equivalent to the second adjusting position 44 of dipped headlights position or shadow shield arris 22.
Be known that by prior art adjusting driver 40 further improves the tension force of the spring of pretension the transient process from dipped headlights position 44 to high beam position 42.This has such advantage, that is, reset force is enhanced the transient process from dipped headlights position 44 to high beam position 42, does not produce in the mobile situation in other direction at adjusting driver 40, and this reset force causes automatically reverting to dipped headlights position 44.This is favourable, because then can use simple adjusting driver 40, for example attracts magnet, and it can only apply its adjusting power in one direction.Then, reseting movement is driven by flexible reset force.
Another advantage is, when adjusting driver 40 can not apply driving force, for example may be when adjusting driver 40 break down, and flexible reset force is so that be returned to dipped headlights position 44.Disappear if for example be used as the power supply of the attraction magnet of adjusting driver 40, then be automatically moved to dipped headlights position 44 and avoid dazzling of oncoming vehicle.
For oncoming vehicle, require the switching between dipped headlights position 44 and high beam position 42 very fast, that is to say part and realize in second.Therefore need to accelerate consumingly shadow shield 20 by means of reset force.In order before firmly running into reflector 18, the shadow shield 20 that accelerates to be slowed down, and cushion consequential, can be used as the noise that metal patter sound is heard, shadow shield 20 has the first magnet 46.This first magnet 46 forms magnet to 50 with the second magnet 48.The second magnet 48 is arranged on the leading edge 40 of reflector 18, so that it is accurately opposed in dipped headlights position 44 and the first magnet 46.In an illustrated embodiment, be that two magnets 46 and 48 are directed like this, so that it is relative with magnetic pole of the same name for the function mandatory requirement.
Yet also can consider such enforcement modification, otherwise wherein shadow shield 20 from dipped headlights position 44 to high beam position 42 and/or the technical problem switched of noiseless solve by two magnets 46 and 48, described magnet applies attraction relatively and therefore with different magnetic poles.
Have two magnets to 50 at the first embodiment shown in Fig. 2, wherein, two magnets 48 are arranged on the right front edge or left front edge 40 of reflector 18 in the drawings respectively.Yet also be contemplated that, only use a magnet to 50 or more than two magnets to 50.Magnet to 50 on leading edge 40 significant position obtain from the shape of the shape of shadow shield 20 and reflector 18.Followingly magnet is described to 50 function according to Fig. 3.
Fig. 3 shows the high beam position 42 of projected light headlamp 10 with side view in the sectional view A of part intercepting.Only show in Fig. 3 for understanding the important parts of the present invention, comprise the leading edge 38 of reflector, shadow shield 20 and magnet are to 50.In the groove of shadow shield 20, be provided with the first magnet 46.The first magnet 46 can be pressed into or be bonded in the groove.Also be contemplated that, for example by bonding the first magnet 46 be fixed on shadow shield 20 on the surface of leading edge 38.The second magnet 48 is fixed in the groove of leading edge 38 of reflector 48.As previously mentioned, the fixed form in this consideration is to compress or bonding.The preferred permanent magnet that uses by powder compresses and the possibility sintering forms.
In the high beam position of shadow shield 20 (A of partial cross section), the such ground far away of the first magnet 46 and the second magnet 48 relative to each other away from so that it can only apply little impact mutually.If for example because the elastic reset power of the spring of pretension drives is accelerated, shadow shield 20 rotates around the rotating shaft 52 perpendicular to drawing shadow shield 20 when attracting magnet to disconnect.Therefore the first magnet 46 is near the second magnet 48.This approaches in Fig. 3 and represents by the arrow that represents with Reference numeral 54. Magnet 46 and 48 is arranged like this, so that its magnetic pole of the same name is put relatively.Along with the spacing between the first magnet 46 and the second magnet 48 reduces, repel magnetic force F hypergeometric and increase routinely.The cube of the distance between magnetic force and the magnet is inversely proportional to.Because the action direction of the magnetic force F that repels is opposite with the direction of motion 54 of shadow shield 20, shadow shield 20 slows down by magnetic force F.Slow down, but because non-linear about distance of magnetic force, along with the spacing of shadow shield 20 and dipped headlights position 44 reduces and constantly increases at first only littlely.Thus, the power that has effectively reduced to collide on reflector 18 or the support has also reduced impact noise effectively.
The B of partial cross section shows the shadow shield 20 that is in dipped headlights position 44.Can make 50 quantity and/or energy density by magnet and to repel magnetic force F and coordinate with the kinetic energy of the shadow shield 20 that accelerates like this, so that produce dynamic balance between the reset force of magnetic force F and adjusting driver 40 in dipped headlights position 44.Because its inertia, shadow shield 20 are then extremely static around dipped headlights position 44 swinging directs with the amplitude that reduces gradually.
The C of partial cross section with zoomed-in view show be in dipped headlights position 44 magnet to 50.At this, if determine like this spacing 55 between the magnet 46 and 48, so that it is crossing the stroke of its final position to dipped headlights position 44 processes greater than shadow shield 20, then shadow shield 20 is prevented and has been realized almost muting switching between high beam position 42 and the dipped headlights position 44 fully in the collision on the reflector 18.
Fig. 4 shows another embodiment by headlamp 10 of the present invention.Reflector 18 and shadow shield 20 in high beam position 42, that preferably made by paramagnetic material in this embodiment have been shown in the A of partial cross section.That is to say that the shadow shield material has magnetic in being placed in magnetic field the time.
In this second embodiment, projection headlamp 10 has along radiation direction sees that the magnet on the right side that is arranged on reflector 18 is to 50.In opposite side, along the left side that radiation direction is seen, be provided with the 3rd magnet 56 in leading edge 38.In the B of partial cross section, shadow shield 20 is arranged in dipped headlights position 44.
Cross section C in the top view shows the shadow shield 20 that is in the dipped headlights position 44.Shown in the C of cross section be the part of adjusting driver 40, it comprises and attracts armature 58 and back-moving spring 60.In this embodiment, back-moving spring 60 is designed to butterfly spring.Bung flange inside at butterfly spring is provided with rotating shaft 52.Magnet comprises the first magnet 46 and the second magnet 48 to 50, is positioned at the left side of shadow shield 20 in the C of cross section.The 3rd magnet 56 is arranged on the right in the drawings.Reflector 18 and other parts of projection headlamp 10 are omitted for clarity.
Operation principle at the embodiment shown in Fig. 4 is as described below: attract armature 58 by unclamping, the back-moving spring 60 of pretension accelerates shadow shield 20.Shadow shield 20 rotates to dipped headlights position 44 around rotating shaft 50.As described in reference Fig. 3, owing to the magnetic force Fs of magnet to 50 repulsions, shadow shield 20 is slowed down.The 3rd magnet 56 arranges like this, so that the attraction magnetic force that is produced by the 3rd magnet is perpendicular to the direction of motion effect of shadow shield 20.The attraction magnetic force F of the 3rd magnet 56 is that 62 arrow represents by Reference numeral.In shadow shield 20 entered the magnetic field of the 3rd magnet, the magnetic field of the 3rd magnet 56 was so that in the paramagnetic material of shadow shield 20, basic magnet, and the atom of material namely, lewis' acid is corresponding to the field orientation of the 3rd magnet 56.Therefore, the paramagnetic material of shadow shield 20 is regarded magnet as constantly at this, and this magnet forms additional magnet to 63 with the 3rd magnet 56.Attraction 62 by the 3rd magnet 56 obviously cushions shadow shield 20 around the swing of dipped headlights position 44.Spacing 64 between shadow shield 20 and the 3rd magnet 56 is guaranteed not have contact between shadow shield and the 3rd magnet 56, and therefore prevents the noise of generation when collision.
It is evident that lateral action causes pressure in the bearing of rotating shaft 52 in attraction 62 on the shadow shield 20, that the 3rd magnet 56 applies.Consequent side direction static friction has improved the positional stability of shadow shield 20.In addition, the attraction magnetic force 62 that acts on along rotating shaft 52 on the one hand prevents that shadow shield 20 is along the movement of rotating shaft 52 and therefore so that the tolerance when shadow shield 20 is located along rotating shaft 52 is minimum.
Clearly, for can't help the shadow shield 20 that magnetizable material makes, substitute the 3rd magnet 56 and must arrange additional magnets to 63, its first magnet 46 is relative with different magnetic poles with the second magnet 48, therefore produces needed attraction magnetic force 62.
Claims (13)
1. a projected light module (10), with light source (18), the light beam of this light source is converged in the distribution of the first light by primary optics (20), this first light distributes and is arranged in the shading plane of projected light module (10), with with image optics device (24), this image optics device is set to, the second light that the distribution of the first light is projected to the front area that is arranged in projected light module (10) distributes, and with shadow shield (20) and adjusting driver (40), this adjusting driver is set to, regulate the optical effect arris (22) of shadow shield (20) by the adjustment movement of shadow shield (20) between the first adjusting position (42) and the second adjusting position (44), it is characterized in that, described projected light module (10) has the brake apparatus of magnetic, this brake apparatus is set to, and delays the adjustment movement of described shadow shield (20) at described shadow shield (20) during through described the first adjusting position (42) and/or described the second adjusting position (44) during near the first adjusting position (42) and/or the second adjusting position (44) or at described shadow shield (20).
2. projected light module according to claim 1 (10) is characterized in that, described brake apparatus has at least one magnet to (50), and this magnet is to comprising two magnets (46,48) that mutually repel.
3. according to the described projected light module of one of prostatitis claim (10), it is characterized in that, select so described magnet to energy density and/or the quantity of (50), so that the balance between the dipped headlights position (44) of shadow shield (20) formation magnetic force (F) and reset force.
4. according to the described projected light module of one of prostatitis claim (10), it is characterized in that magnet is arranged with a spacing (55) in dipped headlights position (44) relative to each other to described the first magnet (46) and described second magnet (48) of (50).
5. such as the described projected light module of one of prostatitis claim (10), it is characterized in that described adjusting driver (40) comprises attraction armature (58) and back-moving spring (60).
6. such as the described projected light module of one of prostatitis claim (10), it is characterized in that, described magnet is arranged on the leading edge (38) of primary optics (18) first magnet (46) of (50), and magnet is arranged on the shadow shield (20) second magnet (48) of (50).
7. such as the described projected light module of one of prostatitis claim (10), it is characterized in that, be provided be used to the groove that holds magnet (46,48) at shadow shield (20) and/or primary optics (18).
8. such as the described projected light module of one of prostatitis claim (10), it is characterized in that described magnet comprises at least one permanent magnet to (50).
9. such as the described projected light module of one of prostatitis claim (10), it is characterized in that described permanent magnet is made by compression and/or sintering.
10. such as the described projected light module of one of prostatitis claim (10), it is characterized in that the material of permanent magnet is selected according to the temperature that projected light module (10) occurs at shadow shield (20) when moving in accordance with regulations.
11. such as the described projected light module of one of prostatitis claim (10), it is characterized in that, this projected light module has at least one additional magnet to (63), wherein, magnet that should be additional has the magnetic force (F) of attraction to (63), and its action direction is perpendicular to the action direction of the inertia force that occurs when shadow shield (20) adjustment movement.
12. such as the described projected light module of one of prostatitis claim (10), it is characterized in that additional magnet is arranged with a spacing (64) in dipped headlights position (44) relative to each other to the first magnet (46) and second magnet (48) of (63).
13., it is characterized in that described shadow shield (20) is made by paramagnetic material such as the described projected light module of one of prostatitis claim (10).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202012003108U DE202012003108U1 (en) | 2012-03-28 | 2012-03-28 | Projection light module with an adjustable aperture |
| DE202012003108.2 | 2012-03-28 | ||
| DE2020120031082 | 2012-03-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363449A true CN103363449A (en) | 2013-10-23 |
| CN103363449B CN103363449B (en) | 2017-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310103242.9A Expired - Fee Related CN103363449B (en) | 2012-03-28 | 2013-03-28 | Projection light module with adjustable shadow shield |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103363449B (en) |
| DE (1) | DE202012003108U1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501060A (en) * | 2014-12-24 | 2015-04-08 | 芜湖市汽车产业技术研究院有限公司 | Signal lamp derived from front fog lamp of automobile |
| CN106555983A (en) * | 2015-09-24 | 2017-04-05 | 现代自动车株式会社 | For driving the equipment of front lamp cover |
| WO2019085258A1 (en) * | 2017-11-01 | 2019-05-09 | 深圳光峰科技股份有限公司 | Optical assembly and optical device |
| CN112923328A (en) * | 2021-03-24 | 2021-06-08 | 福建吉艾普光影科技有限公司 | Single-motor multi-module optical mechanism capable of resetting automatically |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3023602B1 (en) | 2014-07-09 | 2016-08-05 | Aml Systems | CUTTING MECHANISM COMPRISING A CARRIER BAR OF A PERMANENT MAGNET. |
| KR101673708B1 (en) | 2014-12-05 | 2016-11-07 | 현대자동차주식회사 | Shield drive device for head lamp |
| FR3034842B1 (en) * | 2015-04-07 | 2018-04-20 | Valeo Vision | DEVICE FOR HOLDING IN THE POSITION OF A MOTOR VEHICLE EQUIPMENT PIECE IN RELATION TO A STRUCTURAL ELEMENT OF SAID VEHICLE |
| CN217843594U (en) * | 2021-08-30 | 2022-11-18 | 广州市浩洋电子股份有限公司 | Stage lamp with camera lens buffer function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1455133A1 (en) * | 2003-03-03 | 2004-09-08 | Valeo Vision | Vehicle headlamp comprising a movable shade equipped with locking means |
| FR2897415B1 (en) * | 2006-02-14 | 2008-04-11 | Valeo Vision Sa | LIGHTING PROJECTOR FOR MOTOR VEHICLES. |
| CN201425238Y (en) * | 2009-05-12 | 2010-03-17 | 常州市飞拓模塑有限公司 | Projection-type two-light lens headlamp |
| CN201434301Y (en) * | 2009-07-31 | 2010-03-31 | 张方涛 | Bifocal lens lamp with function of automatically switching high/low beam |
| DE102009032456A1 (en) * | 2009-07-09 | 2011-01-13 | Automotive Lighting Reutlingen Gmbh | Projection module for motor vehicle headlight, has lens carrier connected to round part with closure and deformed to round part, where processing of lens carrier rips one-piece from flat sheet metal |
-
2012
- 2012-03-28 DE DE202012003108U patent/DE202012003108U1/en not_active Expired - Lifetime
-
2013
- 2013-03-28 CN CN201310103242.9A patent/CN103363449B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1455133A1 (en) * | 2003-03-03 | 2004-09-08 | Valeo Vision | Vehicle headlamp comprising a movable shade equipped with locking means |
| FR2897415B1 (en) * | 2006-02-14 | 2008-04-11 | Valeo Vision Sa | LIGHTING PROJECTOR FOR MOTOR VEHICLES. |
| CN201425238Y (en) * | 2009-05-12 | 2010-03-17 | 常州市飞拓模塑有限公司 | Projection-type two-light lens headlamp |
| DE102009032456A1 (en) * | 2009-07-09 | 2011-01-13 | Automotive Lighting Reutlingen Gmbh | Projection module for motor vehicle headlight, has lens carrier connected to round part with closure and deformed to round part, where processing of lens carrier rips one-piece from flat sheet metal |
| CN201434301Y (en) * | 2009-07-31 | 2010-03-31 | 张方涛 | Bifocal lens lamp with function of automatically switching high/low beam |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501060A (en) * | 2014-12-24 | 2015-04-08 | 芜湖市汽车产业技术研究院有限公司 | Signal lamp derived from front fog lamp of automobile |
| CN106555983A (en) * | 2015-09-24 | 2017-04-05 | 现代自动车株式会社 | For driving the equipment of front lamp cover |
| CN106555983B (en) * | 2015-09-24 | 2020-04-24 | 现代自动车株式会社 | Apparatus for driving a headlight cover |
| WO2019085258A1 (en) * | 2017-11-01 | 2019-05-09 | 深圳光峰科技股份有限公司 | Optical assembly and optical device |
| CN112923328A (en) * | 2021-03-24 | 2021-06-08 | 福建吉艾普光影科技有限公司 | Single-motor multi-module optical mechanism capable of resetting automatically |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103363449B (en) | 2017-07-28 |
| DE202012003108U1 (en) | 2013-01-29 |
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