CN105452761B - The mechanism of light beam for cutting off optical module and the optical module - Google Patents
The mechanism of light beam for cutting off optical module and the optical module Download PDFInfo
- Publication number
- CN105452761B CN105452761B CN201480044114.4A CN201480044114A CN105452761B CN 105452761 B CN105452761 B CN 105452761B CN 201480044114 A CN201480044114 A CN 201480044114A CN 105452761 B CN105452761 B CN 105452761B
- Authority
- CN
- China
- Prior art keywords
- component
- band
- transmission shaft
- cutting mechanism
- motor
- 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
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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
- F21S41/60—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
- F21S41/698—Shaft-shaped screens rotating along its longitudinal axis
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Lens Barrels (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
The present invention relates to a kind of cutting mechanisms of optical module (5), including：Block band (10)；Motor (30), the motor block band (10) by the transmission shaft (38) of the motor (30) and the drive member for blocking band (10) for being drivingly connected to the transmission shaft (38) described in driving at least between first position and the second position；Resetting apparatus (15), the resetting apparatus tends to make described block with its first position of return, it is characterized in that, the drive member includes for making device (81) of the movement of the transmission shaft (38) relative to the mobile decoupling for blocking band (10) in described block with (10) arrival first position.The invention further relates to the optical modules that one kind including the cutting mechanism (5).
Description
Technical field
The present invention relates to a kind of mechanism for cutting off the light beam of optical module and the optical modules.It is especially applied
In optical module, the optical module is (especially ellipse in the motor vehicle headlight of motor vehicle front for being embedded into
Circle headlight).
Such optical module has the light source of light projection to reflector.Then light is reflected onto lens, to make it
It is turned back reversely and in the form of light beam to the outside of vehicle.
The present invention relates more specifically to include the rotatable optical module for blocking band, and the rotatable band that blocks electrically is started
To be moved to the second Angle Position from the first Angle Position as needed, in the first Angle Position, the rotatable band that blocks covers light beam
A part is so as to by the range of the scope limitation of headlight to dipped beam, to not make other driver's mesh moved along opposite direction
Dizzy, in the second Angle Position, the rotatable band that blocks does not cover light beam, the range of headlight then with full light beam (full beams)
Range corresponds to.
Background technology
Band is blocked by motor starting to make the band rotate.For this purpose, motor includes transmission shaft, which makes gear mechanism
Structure rotates, and band is blocked so that its rotary motion to be transferred to.
The startup of motor, which makes it possible to drive from the first position corresponding with dipped beam for blocking band, blocks band, until blocking
Portion is maintained at its second position corresponding with full light beam by band is blocked.Then motor keeps starting, so that transmission shaft passes through tooth
Wheel mechanism will block band and keep in the position.
When it is expected that will block band is reset to its first position, motor is closed.The transmission shaft of motor is then able to freedom
Ground rotates so that it no longer keeps blocking band.It blocks band and then is driven by resetting spring, until limiting its first position
Blocking portion.During the rotation, block band makes transmission shaft rotate by gear mechanism.
It is rapidly moved to its first position from its second position however, it may be necessary to make to block band, to limit dipped beam
Transit time between full light beam.Therefore it is prodigious that spring, which applies restoring force on tape, and is reached simultaneously when blocking band
When against the blocking portion for limiting its first position, then blocks band and be subjected to springing back.In addition, due to by band driving as shown above
The inertia of transmission shaft and inertia with the rotor of the motor of transmission axis connection, this rebound is exacerbated.As long as blocking with unstable,
This rebound is it will be apparent that and leading to the deterioration of encoding function (code function) for driver.
Invention content
The purpose of the present invention is improve the above situation.Therefore the present invention relates to a kind of cutting mechanisms of optical module, including：
Block band；Motor, the motor is by the transmission shaft of the motor and for blocking the drive member of band come at least first
It sets and blocks band described in driving between the second position, it is described to block band and the transmission axis connection；Resetting apparatus, the reset dress
It sets and the band that blocks is brought back into its first position, which is characterized in that the drive member includes for blocking band described
Device when reaching the first position by the movement of the transmission shaft relative to the mobile decoupling for blocking band.
Therefore, by the present invention, especially by the decoupling device, when the first position for blocking band and limiting and blocking band
The contact of the first blocking portion when, the rotary motion for blocking band stops, and the rotary motion of the transmission shaft then continues.It is described to block
Thus the rebound of band greatly reduces, because it is non-not by the effect and its own inertia of the transmission shaft inertia at the moment
It is often small.Especially because the internal features (such as passing through friction) of the motor, the transmission shaft will slow down, also, be cut when described
When broken belt and the transmission shaft are again coupled to, the rotary speed and angular momentum of the transmission shaft will reduce.
According to an aspect of the present invention, the decoupling device has one or more following components, once described block band
The first position is arrived, one or more of components just are used for inhibiting the movement of the transmission shaft.Compared to only by itself
Friction, the movement of the transmission shaft, which results in, more to be inhibited, this causes described to block reducing for rebound that band is subject to.Example
Such as, the friction inhibited by a component on another component generates.
According to one embodiment of present invention, the decoupling device includes be rigidly connected to the transmission shaft first
Part and make the second component for blocking band and rotating, when the band that blocks is moved to the first position from the second position
When, the first component is driven by the second component, when described block with the first position is reached, the first component
It is decoupled with the second component.Advantageously, when described block with the first position is reached, described in the second component inhibition
The movement of the first component.Component is inhibited to be formed advantageous by the friction between the second component and the first component.
Advantageously, the second component includes being blocked with one group of tooth for forming geared system with described.
According to an aspect of the present invention, the first component and the second component connect as follows：Described in permission
Rotation axis of the first component relative to the second component around the transmission shaft carries out angular displacement.When the band that blocks reaches it
When first position, thus the angular displacement allows the movement of the first component to be solved relative to the movement of the second component
Coupling.
An embodiment according to the present invention, the second component include the groove of angled fan shape, and described first
Part includes rib, and the rib moves in the groove to realize the angular displacement.
According to an aspect of the present invention, the inhibition component by the friction between the rib and the groove come shape
At.
Advantageously, the first component is configured to the cylinder positioned at the distal end of the transmission shaft, and the rib is located at
At the periphery of the cylinder.
According to an aspect of the present invention, the first component is located at the center of the second component, the institute of angular sectors shape
State the periphery that groove is located at the first component.Therefore, the decoupling device is configured to traditional roller gear and includes being located at it
The first component of center portion and second component positioned at its outer peripheral portion.Therefore therefore described device can be incorporated into existing
Cutting mechanism to the cutting mechanism without making any transformation.
The invention further relates to a kind of optical modules including above-mentioned cutting mechanism.
Description of the drawings
It will be better understood when according to the present invention is described below, provide these descriptions and be intended only as instructing to be not intended to limit
The present invention, in the accompanying drawings：
Fig. 1 is the schematic diagram for the optical module for including cutting mechanism；
Fig. 2 is the decomposition perspective view of the cutting mechanism of the present invention；
Fig. 3 is cutting mechanism shown in Fig. 2 perspective view when assembled；
Fig. 4 is the side view of cutting mechanism shown in Fig. 3；
Fig. 5 is the perspective view of the motor of the cutting mechanism according to the present invention equipped with decoupling device；And
Fig. 6 is the decoupling device of Fig. 5 and the decomposition perspective view of motor.
Specific implementation mode
Fig. 1 shows the optical module 1 for including cutting mechanism 5 according to the present invention.This kind of optical module includes generating quilt
The light source 2 for the light beam that reflective optical system 3 reflects.Then light beam is projected to lens 4, and lens keep the light beam reversed and it is made to turn back
To the road for the vehicle front for being equipped with optical module.Lens 4 are arranged on lens carrier 7.Here light source is halogen lamp.
Cutting mechanism 5 is arranged between reflector 3 and lens 4.It, should in response to the needs or automatic command of vehicle driver
Cutting mechanism 5 can more or less block light beam, in order to provide the different mode of road lighting.
The cutting mechanism 5 will be more fully described using Fig. 2 and Fig. 3.In the rest part of specification, in front of term, after
Side, right side, left side, above and below be defined as the directional correlation to travel forward with vehicle, that is, referred to by 80 with Fig. 2
The directional correlation of the arrow shown.
Cutting mechanism 5 includes blocking band 10.Here, it is difunctional cutting mechanism, then says it, and blocking band can account for
According to two positions, that is, light beam, and first position are blocked in first position and the second position with blocking band part in first position
It is corresponding with dipped beam, in the second position, blocks band and do not block or less block light beam, and the second position and full light beam pair
It answers.In its first position, blocks band 10 and extend in roughly vertical plane, and in its second position, band is blocked in substantially water
Extend in flat plane.
It blocks band 10 and is set as opposite with light source.It includes on the band support portion 11 of first part 12 the to block band and be mounted on
A part has the geared system 14 at the first longitudinal direction end 72 of band 10.Here, the disc-shaped fan shape of first part, and
And include central part 21, geared system 14 is located at the periphery of central part.Band support portion 11 further includes second part 13, and second
Part 13 has resetting apparatus (especially resetting spring 15), which moves back to first position by band 13, that is, it is big to move back to it
Vertical position, second part 13 is caused to be located at the second longitudinal direction end 73 of band 10.First longitudinal direction end 72 is located at band in fig. 2
10 left side, and second longitudinal direction end 73 is located at the right side of band 10.
Here, band 10 is formed from steel.With generally rectangular in shape, and it is arranged to and more or less blocks light beam,
As described above, in other words light beam is more or less cut off.
The frame 50 of cutting mechanism 5 is mounted to support portion 11.Cutting mechanism 5 further includes drive member 90, the driving
Component specifically includes the first part 12 of support portion 11 and the pinion gear equipped with one group of tooth, and pinion gear is driven by DC driven motor 30
It is dynamic.The drive shaft 38 that drive member 90 is connected to d.c. motor 30 blocks band to drive.
Motor 30 is generally shaped like parallelepiped so that it include upper surface 32, front surface 33, lower surface 34, after
Surface 35, left-hand face 36 and right lateral surface 37.Upper surface 32 and lower surface 34 relative to each other is in arc line shaped.
Drive member 90 is located at the left-hand face 36 of motor 30.The drive member is connected to transmission shaft 38, the transmission
Axis protrudes and is located substantially at the middle part of the left-hand face 36 of motor 30 relative to the left-hand face 36 of motor 30.
Once cutting mechanism 5 is installed on optical module, motor 30 is just installed on motor support portion 40, described
Motor support portion is centrally located and towards the front of frame 50 (in other words, between motor and lens).
Cutting mechanism 5 further includes heat shield 60, the appearance of the heat shield and the support portion 40 of motor 30 oriented forward
The shape in face matches.Therefore heat shield 60 is between motor support portion 40 and lens.The cover is made of metal so that it
Protect motor support portion 40 and motor 30 from the influence of solar rays.
The central part 21 of the first part 12 of support portion 11 includes the boss 61 being located on frame 50 with cutting mechanism 5
The aperture (not shown) of cooperation.The degree of freedom that boss 61 is advanced in aperture, which will be blocked the rotation that band has to carry out and is limited to, blocks
Between the first position and the second position of band.Therefore, aperture limits the first blocking portion and the second blocking portion, is in when blocking band
Boss 61 is engaged with the first blocking portion when its first position, boss 61 and the second blocking portion when blocking band in its second position
Engagement.
Motor 30 will block band by its drive member 90 and transmission shaft 38 and be driven from its first position to its second position,
Make to block band towards top rake.As long as blocking band 10 is maintained at full light-beam position (that is, second position), motor is maintained for starting,
It is kept in the position so that the transmission shaft 38 of motor will block band 10 by drive member 90.
When motor is closed, transmission shaft 38 becomes rotating freely, and blocks band 10 by resetting spring 15 by band
To its first position.
According to the present invention, drive member 90 includes device 81, which is used to make when blocking band 10 and reaching first position
The movement of transmission shaft 38 is relative to the mobile decoupling for blocking band 10.
Therefore, when the first blocking portion of drive member 90 reaches and when against boss 61, block band be blocked in its first
Position, and transmission shaft 38 continues to rotate by decoupling device, therefore will not cause to block the rebound of band 10.
Decoupling device 81 is described in further detail in fig. 4 to fig. 6.From these attached drawings it might be noted that described device includes
The substantial cylindrical first component 82, the first component is coaxial with transmission shaft 38 and is connected to transmission shaft 38, that is, first component rigidity
Ground is connected to transmission shaft 38.The first component 82 includes the ring positioned at its base portion (that is, part nearest from motor of the first component)
91.Cylindrical diameter bigger of the diameter of ring 91 than the first component 82.The first component 82 can be located at the distal end of transmission shaft 38
Place.The first component includes the rib 87 for extending radially to cylinder periphery.
Decoupling device further includes second component 83, and 83 substantially cylindrical of second component simultaneously drives and blocks band.In shown reality
It applies in example, second component 83 blocks band by the first part 12 including geared system with support portion to drive.
Here, second component 83 is the pinion gear for including one group of tooth 89.Therefore, second component 83 can be with first part
Geared system engagement blocks band to drive.Second component includes the central opening coaxial with transmission shaft.Second component 83 includes
Groove 84, the groove extend radially through the thickness to pinion gear from center outward opening.Here, the shape of 84 angled sector of groove
Shape.The groove extends in the first end 85 in left side in Fig. 4 and in Fig. 4 between the second end 86 on right side.Here,
One component is arranged in the center of the second component 83.Groove 84 surrounds 82 cloth of the first component especially at the periphery of the first component
It sets.
The central opening of second component 83 receives the first component 82, and is that groove 84 has received rib 87.Therefore the
One component 82 is inserted into as follows in second component 83：Ring 91 is contacted with second component 83.Therefore, decoupling device 81 is adopted
The form of conventional pinion is taken, and can be set on the transmission shaft of the prior art without carrying out any spy to transmission shaft 38
Different transformation.
Groove 84 is disposed at the periphery of the first component 82.The groove allows the first component 82 at the angle that groove limits
Around the axis rotation of transmission shaft without making second component 83 rotate in degree is fan-shaped.It should here be understood that the first component 82 and
Two components 83 connect as follows：The first component 82 can relative to second component 83 around transmission shaft 38 rotation axis into
Row angular displacement.
Therefore, the mobile decoupling of the first component 82 movement in groove 84 and second component 83.This is because working as motor
30 will block band 10 when driving from first position to the second position, and the transmission shaft 38 of motor is in Fig. 4 as follows clockwise
Rotation：Rib 87 is pressed in the second end 86 of groove 84, and to make second component 83 rotate, second component passes through gear in turn
Band is blocked in device driving.When motor 30 is closed, resetting spring 15 is pressed against by first part 13 and blocks band 10, and then this will
Meeting drive gear arrangement 14, geared system make second component 83 in Fig. 4 along rotation counterclockwise in turn.Then the second component
Drive the first component 82 (rib 87 of the first component 82 is engaged with the second end 86 of groove 84).Therefore, when the first blocking portion
It reaches and against (that is, when blocking band its first position of arrival) when boss, the first blocking portion stops rotating, to prevent gear
The rotation of the rotation and second component 83 of device.However, transmission shaft 38 continues to rotate due to its inertia, then groove 84 allows
Rib 87 carries out displacement and the first component 82 being connect with transmission shaft 38 is allowed to carry out displacement whereby.Therefore, in the model of groove
It places, when blocking band its first position of arrival, the movement of transmission shaft 38 is implemented relative to the decoupling for the movement for blocking band.
Rib 87 is advanced along the route limited by groove 84 until it is engaged with the first end 85 of groove 84.Due to passing
Moving axis by motor internal friction, therefore transmission shaft its rotation (with groove limit sector it is corresponding) during speed drop
It is low.Therefore the amount of movement of the axis reduces, and blocking the rebound that band is subject to will be lowered.
Decoupling device 81 can further include one or more inhibition components so that and the movement of transmission shaft is further slowed down,
And to be further reduced when its speed is at the first end 85 that rib 87 reaches groove 84.Herein, these inhibit component
Including the first component 82 and second component 83, and especially by friction (the especially rib between the first component 82 and second component 83
Friction between shape portion 87 and the bottom of groove 84) it constitutes.Other than the friction being happened between rib 87 and groove 84,
Other frictions between the first component 82 and second component 83 can also inhibit the movement of transmission shaft 38.
Especially first can be selected by changing 84 size of groove according to the desired inhibition of the movement to transmission shaft 38
Angular displacement between component and second component.
Claims (11)
1. a kind of cutting mechanism (5) of optical module (1), including：Block band (10)；Motor (30), the motor pass through described
The transmission shaft (38) of motor (30) and institute is at least driven by drive member (90) between the first location and the second location
It states and blocks band (10), the drive member (90) is connected to the transmission shaft (38) to block band (10) described in driving；Reset dress
It sets (15), the band (10) that blocks is brought back to its first position by the resetting apparatus, which is characterized in that the drive member
(90) include for being blocked the movement of the transmission shaft (38) when band (10) reaches the first position relative to institute described
State the decoupling device (81) for the mobile decoupling for blocking band (10).
2. cutting mechanism (5) according to claim 1, wherein the decoupling device (81) is used for one or more
In the inhibition component of the movement blocked and inhibit the transmission shaft (38) when band (10) arrived the first position.
3. according to any one of them cutting mechanism (5) of claims 1 or 2, wherein the decoupling device (81) includes rigid
Property be connected to the first component (82) of the transmission shaft (38) and make the second component (83) for blocking band (10) rotation, work as institute
It states when blocking band and being moved to the first position from the second position, the first component (82) is by the second component (83)
Driving, when described block with (10) arrival first position, the first component (82) and the second component (83)
Mobile decoupling.
4. cutting mechanism (5) according to claim 3, wherein when described block with (10) arrival first position,
The second component (83) inhibits the movement of the first component (82).
5. cutting mechanism (5) according to claim 3, wherein the second component (83) includes blocking band with described
(10) one group of tooth (89) of geared system is formed.
6. cutting mechanism (5) according to claim 3, wherein the first component (82) and the second component (83)
It connects as follows：Allow rotation of the first component (82) relative to the second component (83) around the transmission shaft (38)
Shaft axis carries out angular displacement.
7. cutting mechanism (5) according to claim 6, wherein the second component (83) includes angled fan shape
Groove (84), and the first component (82) includes rib (87), the rib moves in the groove (84) with reality
The existing angular displacement.
8. cutting mechanism (5) according to claim 7, wherein the decoupling device (81) is used for one or more
In the inhibition component of the movement blocked and inhibit the transmission shaft (38) when band (10) arrived the first position, the suppression
Component processed is formed by the friction between the rib (87) and the groove (84).
9. cutting mechanism (5) according to claim 7, wherein the first component (82) is configured to be located at the transmission
The cylinder of the far-end of axis (38), the rib (87) are located at the periphery of the cylinder.
10. cutting mechanism (5) according to claim 7, wherein the first component (82) is located at the second component
(83) center, the groove (84) of angular sectors shape is at the periphery of the first component (82) around described first
Part (82) is arranged.
11. optical module (1) includes the cutting mechanism (5) according to any one of claim 1-10.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1357839 | 2013-08-06 | ||
| FR1357839A FR3009602B1 (en) | 2013-08-06 | 2013-08-06 | LIGHT BEAM BREAKING MECHANISM FOR OPTICAL MODULE AND OPTICAL MODULE |
| PCT/FR2014/052038 WO2015019021A1 (en) | 2013-08-06 | 2014-08-05 | Mechanism for cutting off a light beam for an optical module and said optical module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105452761A CN105452761A (en) | 2016-03-30 |
| CN105452761B true CN105452761B (en) | 2018-08-31 |
Family
ID=49510337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480044114.4A Expired - Fee Related CN105452761B (en) | 2013-08-06 | 2014-08-05 | The mechanism of light beam for cutting off optical module and the optical module |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3030831B1 (en) |
| CN (1) | CN105452761B (en) |
| FR (1) | FR3009602B1 (en) |
| WO (1) | WO2015019021A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1806532A1 (en) * | 2006-01-05 | 2007-07-11 | Valeo Vision | Triple-function headlight for an automobile. |
| CN101122375A (en) * | 2006-08-09 | 2008-02-13 | 株式会社小糸制作所 | Infrared light irradiating lamp for vehicle |
| DE202009009519U1 (en) * | 2009-07-07 | 2009-09-17 | Automotive Lighting Reutlingen Gmbh | Motor vehicle headlight with an additional panel |
| CN102756682A (en) * | 2011-04-27 | 2012-10-31 | 汽车照明罗伊特林根有限公司 | Light module of automobile headlamp |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2936591B1 (en) * | 2008-09-30 | 2014-09-12 | Valeo Vision Sas | OPTICAL MODULE FOR A MOTOR VEHICLE FOR SELECTIVELY LIGHTING A ZONE |
-
2013
- 2013-08-06 FR FR1357839A patent/FR3009602B1/en not_active Expired - Fee Related
-
2014
- 2014-08-05 WO PCT/FR2014/052038 patent/WO2015019021A1/en active Application Filing
- 2014-08-05 EP EP14756093.2A patent/EP3030831B1/en active Active
- 2014-08-05 CN CN201480044114.4A patent/CN105452761B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1806532A1 (en) * | 2006-01-05 | 2007-07-11 | Valeo Vision | Triple-function headlight for an automobile. |
| CN101122375A (en) * | 2006-08-09 | 2008-02-13 | 株式会社小糸制作所 | Infrared light irradiating lamp for vehicle |
| DE202009009519U1 (en) * | 2009-07-07 | 2009-09-17 | Automotive Lighting Reutlingen Gmbh | Motor vehicle headlight with an additional panel |
| CN102756682A (en) * | 2011-04-27 | 2012-10-31 | 汽车照明罗伊特林根有限公司 | Light module of automobile headlamp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3030831A1 (en) | 2016-06-15 |
| CN105452761A (en) | 2016-03-30 |
| EP3030831B1 (en) | 2021-02-24 |
| WO2015019021A1 (en) | 2015-02-12 |
| FR3009602A1 (en) | 2015-02-13 |
| FR3009602B1 (en) | 2015-08-28 |
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