CN110857769A - Car light and light auto-change over device thereof - Google Patents

Car light and light auto-change over device thereof Download PDF

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Publication number
CN110857769A
CN110857769A CN201810975572.XA CN201810975572A CN110857769A CN 110857769 A CN110857769 A CN 110857769A CN 201810975572 A CN201810975572 A CN 201810975572A CN 110857769 A CN110857769 A CN 110857769A
Authority
CN
China
Prior art keywords
light
driving device
light barrier
shaft
barrier
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.)
Pending
Application number
CN201810975572.XA
Other languages
Chinese (zh)
Inventor
周建华
张贤鹏
陈辉
郭燊
李屹
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.)
Shenzhen Appotronics Corp Ltd
YLX Inc
Original Assignee
Appotronics Corp Ltd
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
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Priority to CN201810975572.XA priority Critical patent/CN110857769A/en
Priority to PCT/CN2019/081643 priority patent/WO2020037992A1/en
Publication of CN110857769A publication Critical patent/CN110857769A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/10—Rotating shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/08—Controlling the distribution of the light emitted by adjustment of elements by movement of the screens or filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
    • F21W2102/10—Arrangement or contour of the emitted light
    • F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region

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  • Engineering & Computer Science (AREA)
  • General 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 application discloses car light and light auto-change over device thereof. This light auto-change over device includes: a base; the light barrier is used for blocking light beams of the light source, and a transmission part is arranged on the light barrier; the driving device comprises a driving device body and a shaft lever, wherein the driving device body is arranged on the base, one end of the shaft lever is connected with the driving device body, and the other end of the shaft lever is movably connected with the transmission piece; the driving device body drives the shaft lever to move, the light barrier is driven by the driving part to perform turnover movement, and the shielding angle of the light beam is adjusted. By the mode, the switching resistance can be reduced, the structure is simplified, and the cost is saved.

Description

Car light and light auto-change over device thereof
Technical Field
The application relates to the technical field of mechanical structures, in particular to a car lamp and a light switching device thereof.
Background
High and low beam integrated vehicle lamps occupy a relatively significant share of the overall vehicle lamp market. The switching of the position of the light blocking sheet is the key point for realizing the high-beam and low-beam light adjustment of the car lamp, and the appearance, the high-beam and low-beam light adjustment sensitivity and the size of the whole car lamp are directly influenced by the selection, the layout and the like of the switching transmission structure.
The inventor of the application finds in long-term research and development that the transmission stability during switching is ensured by means of a plurality of structural members between a driving device and a light blocking sheet in a far-near integrated vehicle lamp in the existing market. For example, the driving device can switch the light barrier by using a transmission member such as a link, a paddle, a wheel, or a slide bar, which contributes to the transmission stability. However, these transmission members increase transmission resistance, assembly complexity, and cost.
Disclosure of Invention
The technical problem that this application mainly solved provides a car light and light auto-change over device to reduce switching resistance, simplify the structure and practice thrift the cost.
In order to solve the technical problem, the application adopts a technical scheme that: a light switching device is provided. This light auto-change over device includes: the light barrier is used for blocking light beams of the light source, and a transmission part is arranged on the light barrier; the driving device comprises a driving device body and a shaft lever, wherein one end of the shaft lever is connected with the driving device body, and the other end of the shaft lever is movably connected with the transmission piece; the driving device body drives the shaft lever to move, the light barrier is driven by the driving part to perform turnover movement, and the shielding angle of the light beam is adjusted. This technical scheme makes barn door and drive arrangement's axostylus axostyle lug connection, directly drives the barn door through the axostylus axostyle and rotates to adjust the angle of sheltering from of barn door to the light beam, make the car light realize different light distributions. According to the technical scheme, an additional structural part is not required to be arranged between the shaft lever and the light barrier, so that the structure can be simplified, the cost is saved, the resistance introduced by an intermediate part can be avoided, and the transmission resistance of the shaft lever to the light barrier is reduced.
In one embodiment, the transmission comprises at least: the light barrier comprises a first limiting column and a second limiting column, wherein one end of the first limiting column and one end of the second limiting column are integrally fixed with the light barrier; the two ends of the first guide rail are respectively fixed on the first limiting column and the second limiting column; a first connecting rod and a second connecting rod are arranged at one end of the shaft lever, which is far away from the driving device body, and the first connecting rod and the second connecting rod are arranged in parallel; the first guide rail is arranged between the first connecting rod and the second connecting rod to form transmission. According to the technical scheme, when the light barrier rotates, the first guide rail can freely slide between the first connecting rod and the second connecting rod, and structural interference and jamming in the switching process are avoided.
In one embodiment, when the driving device body is powered on, the driving shaft rod extends linearly, so that the shaft rod drives the light barrier to rotate from the first position to the second position through the transmission piece, so as to reduce the shielding angle of the light barrier to the light beam, and enable the light beam which is not shielded by the light barrier to be in high beam distribution; when the driving device body is powered off, the shaft lever is contracted and reset, so that the shaft lever drives the light barrier to rotate from the second position to the first position through the transmission piece, the shielding angle of the light barrier to the light beam is increased, and the light beam which is not shielded by the light barrier is distributed in a near light mode.
In one embodiment, when the driving device body is powered on, the shaft rod is driven to rotate, so that the shaft rod drives the light barrier to rotate from the first position to the second position through the transmission piece, and the light beam which is not blocked by the light barrier is distributed in a high beam by the smaller blocking angle of the light barrier to the light beam; when the driving device body is powered off, the shaft lever is rotated and reset, so that the shaft lever drives the light barrier to rotate to the first position from the second position through the transmission part, the shielding angle of the light barrier to the light beam is increased, and the light beam which is not shielded by the light barrier is distributed in a near light mode.
In one embodiment, the light switching device further includes a base, the light barrier is disposed on the base through a rotating shaft, and the driving device body is disposed on the base. According to the technical scheme, the light barrier rotates around the rotating shaft, and light beams are shielded at different angles.
In one embodiment, the light switching device further comprises a torsion spring, the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the light barrier, and the other end of the torsion spring is connected to the base; when the driving device is powered off, the torsion spring enhances the restoring force of the light barrier rotating from the second position to the first position so as to increase the shielding angle of the light beam by the light barrier. According to the technical scheme, when the driving device body is powered off, the restoring force of the light barrier is increased through the torsion spring, and the sensitivity of light switching can be effectively improved.
In one embodiment, the driving member includes a second guide rail, and the shaft has a guide ball that moves along the second guide rail to drive the driving member. According to the technical scheme, when the light barrier rotates, the shaft rod can freely slide along the second guide rail, and structural interference and jamming in the switching process are avoided.
In one embodiment, the light switching device further includes a reflector disposed on the light emitting surface of the light source for reflecting the light beam emitted from the light source, and the light barrier blocks the light emitted from the reflector.
In one embodiment, the light switching device further comprises a light barrier pressing sheet for fixing the rotating shaft of the light barrier on the base.
In one embodiment, the base is provided with an accommodating space, and the driving device is arranged in the accommodating space.
In order to solve the above technical problem, the present application adopts another technical solution: a vehicle lamp is provided. The car lamp comprises the light switching device.
The beneficial effects of the embodiment of the application are that: be different from prior art, the light auto-change over device of this application embodiment car light includes: the light barrier is used for blocking light beams of the light source, and a transmission part is arranged on the light barrier; the driving device comprises a driving device body and a shaft lever, wherein one end of the shaft lever is connected with the driving device body, and the other end of the shaft lever is movably connected with the transmission piece; the driving device body drives the shaft lever to move, the light barrier is driven by the driving part to perform turnover movement, and the shielding angle of the light beam is adjusted. Through this kind of mode, the barn door and drive arrangement axostylus axostyle lug connection directly drive the barn door through the axostylus axostyle and rotate to adjust the angle of sheltering from of barn door to the light beam, make the car light realize different light distributions. The embodiment of the application does not need to arrange an additional structural part between the shaft lever and the light barrier, so that the structure can be simplified, the cost is saved, the resistance introduced by an intermediate part can be avoided, and the transmission resistance of the shaft lever to the light barrier is reduced.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of a light switching device for a vehicular lamp according to the present application;
FIG. 2 is a schematic view of the light switching device of the vehicular lamp of FIG. 1;
FIG. 3 is a side view of a light switching device of the vehicle light of the embodiment of FIG. 1;
FIG. 4A is a schematic diagram of an optical path of a light switching device of the vehicular lamp in the embodiment of FIG. 1;
FIG. 4B is a schematic view of another optical path of the light switching device of the vehicular lamp in the embodiment of FIG. 1;
FIG. 5 is a schematic structural diagram of a light blocking plate in the light switching device of the vehicular lamp in the embodiment of FIG. 1;
FIG. 6 is a schematic structural diagram of a driving device in a light switching device of the vehicular lamp of the embodiment of FIG. 1;
FIG. 7 is an enlarged view of a region B of the light switching device of the vehicular lamp in the embodiment of FIG. 1;
FIG. 8 is a schematic structural diagram of a light barrier and a driving device according to a second embodiment of the present application;
FIG. 9 is a schematic structural diagram of an embodiment of the vehicular lamp according to the present application.
Detailed Description
Referring to fig. 1 to 3, fig. 1 is a schematic perspective view of a first embodiment of a switching device of a vehicle lamp according to the present application; fig. 2 is a disassembled schematic view of the switching device of the vehicle lamp in the embodiment of fig. 1, and fig. 3 is a side view of the switching device of the vehicle lamp in the embodiment of fig. 1. The switching device 101 of the vehicle lamp of the present application includes: a base 102, a light barrier 106 and a driving device 104, wherein the light barrier 102 is arranged on the base 102 through a rotating shaft 105; a transmission member 107 is arranged on the light barrier 106; the light barrier 106 is used for blocking a light beam of a light source (not shown), the transmission member 107 and the light barrier 106 may be integrally disposed, or the transmission member 107 may be fixed on the light barrier 106; the driving device 104 includes a driving device body 108 and a shaft 109; the driving device body 108 is disposed on the base 102, wherein one end of the shaft 109 is connected to the driving device body 108, and the other end of the shaft 109 is movably connected to the transmission member 107.
The shaft 109 is driven by the driving device body 108 to drive the transmission member 107 to rotate, and the transmission member 107 drives the light barrier 106 to rotate along the rotating shaft 105 so as to adjust the shielding angle of the light beam.
The light source beam of the present embodiment passes through the light barrier 106 and then exits to the front of the car light to form light distribution. The light barrier 106 of the present embodiment can be driven by the shaft 109 to rotate to a plurality of positions along the rotation axis 105, so that a plurality of shielding angles for the light beam can be realized, and the light beam that is not shielded forms a plurality of different light distributions in front of the vehicle lamp.
Different from the prior art, the shaft 109 of the driving device 104 of the embodiment is directly connected to the transmission member 107 of the light barrier 106, and the shaft 109 can directly drive the light barrier 106 to rotate, so as to adjust the shielding angle of the light beam, and thus the vehicle lamp can achieve different light distributions. And an additional structural member does not need to be arranged between the shaft rod 109 and the light barrier 106, so that the structure can be simplified, the cost is saved, the resistance introduced by an intermediate member can be avoided, and the transmission resistance of the shaft rod 109 to the light barrier 106 is reduced.
Alternatively, the switching device 101 of the vehicle lamp of the present embodiment can realize the high beam distribution and the low beam distribution of the vehicle lamp. Specifically, when the driving device body 108 is powered on, the driving shaft 109 extends linearly, so that the shaft 109 pushes the transmission member 107 to rotate along the first direction, and the transmission member 107 drives the light barrier 106 to rotate from the first position to the second position (as shown in an area a in fig. 3, a solid line represents the first position, and a dotted line represents the second position), so as to reduce a shielding angle of the light barrier 106 to the light beam, as shown in fig. 4A, so that the light beam is not shielded by the light barrier 106, and a high beam distribution is formed; when the driving device body 108 is powered off, the shaft rod 109 contracts under the action of the spring built in the driving device body 108, so that the shaft rod 109 drives the transmission member 107 to rotate along the second direction, and the transmission member 107 drives the light blocking plate 106 to rotate from the second position to the first position, so as to increase the shielding angle of the light blocking plate 106 on the light beam, as shown in fig. 4B, so that the light beam is partially shielded by the light blocking plate 106, and low beam distribution is formed.
Optionally, when the driving device body 108 is powered on, the driving shaft 109 is driven to rotate, so that the driving shaft 109 drives the transmission member 107 to rotate along the first direction, and the transmission member 107 drives the light barrier 106 to rotate from the first position to the second position, so as to reduce the shielding angle of the light barrier 106 on the light beam, as shown in fig. 4A, so that the light beam is not shielded by the light barrier 106, and a high beam distribution is formed; when the driving device body 108 is powered off, the shaft rod 109 is reset under the action of the spring built in the driving device body 108, so that the shaft rod 109 drives the transmission member 107 to rotate along the second direction, and the transmission member 107 drives the light barrier 106 to rotate from the second position to the first position, so as to increase the shielding angle of the light barrier 106 to the light beam, as shown in fig. 4B, so that the light beam is partially shielded by the light barrier 106, and low beam distribution is formed. The first direction of the present embodiment is opposite to the second direction.
The driving device 108 may be configured to make the shaft 109 drive the transmission member 107 linearly, or may be configured to make the shaft 109 rotate to drive the transmission member 107, and thus the light barrier 106 to turn. Specifically, the driving device 104 is disposed on a side of the light barrier 106 close to the light source, and the shaft 109 drives the transmission member 107 in a push-pull manner, or the driving device 104 is disposed on a side of the light barrier away from the light source, and the shaft can also drive the transmission member 107 in a push-pull manner; the drive device 104 can also be arranged on the side of the light barrier 106, and the shaft 109 drives the transmission member 107 in a rotating manner.
Optionally, the base 102 of the present embodiment is provided with a receiving space (not shown), and the driving device 104 is disposed in the receiving space. The drive means 104 can be fixed to the side walls of the oblong hole of the base 102 by means of screws (not shown) without requiring high assembly precision in the direction along the shaft 109, in such a way that space can be saved and the requirement for axial assembly precision can be reduced.
Optionally, the switching device 101 of the vehicle lamp of this embodiment further includes a light reflecting cover 110, the light source is disposed on the base 102, the light reflecting cover 110 is disposed on the light emitting surface of the light source, and is used for reflecting the light beam emitted from the light source, and the light blocking plate 106 blocks the light emitted from the light reflecting cover 110.
Of course, in other embodiments, a lens may be provided, and the light from the light source may be distributed by the lens and then irradiated to the light barrier without a reflector.
Alternatively, as shown in fig. 5, fig. 5 is a schematic structural diagram of a light barrier in the light switching device of the vehicle light in the embodiment of fig. 1. The transmission member 107 of the present embodiment includes at least: a first limit column 501, a second limit column 502 and a first guide rail 503, wherein one end of the first limit column 501 is integrally fixed with the light barrier 106, and one end of the second limit column 502 is integrally fixed with the light barrier 106; two ends of the first guiding rail 503 are respectively fixed on the first limiting column 501 and the second limiting column 502.
The first guide rail 503 of the present embodiment is a cylinder, the first limiting column 501 and the second limiting column 502 are parallel to each other, and the first guide rail 503 is perpendicular to the first limiting column 501 and the second limiting column 502. Of course, in other embodiments, the first restraint post 501, the second restraint post 502 and the first guide rail 503 may have other shapes and other combinations.
Alternatively, as shown in fig. 6, fig. 6 is a schematic structural diagram of a driving device in a light switching device of the vehicle light in the embodiment of fig. 1. In the present embodiment, a first link 601 and a second link 602 are disposed at an end of the shaft 109 away from the driving device body 108.
In this embodiment, the first link 601 and the second link 602 are parallel to each other. Of course, in other embodiments, the first link 601 and the second link 602 are in other combinations.
When the light switching device 101 of the vehicle lamp is assembled, as shown in fig. 7, the first guide rail 503 is disposed between the first link 601 and the second link 602, and both the first link 601 and the second link 602 are limited between the first limit post 501 and the second limit post 502.
In this way, not only the shaft 109 can be connected with the transmission member 107, but also the first guide rail 503 can freely slide between the first connecting rod 601 and the second connecting rod 602 when the driving device 104 pushes and pulls the light barrier 106 and the light barrier 106 rotates along the rotating shaft 104, thereby avoiding structural interference and jamming in the switching process.
Optionally, in this embodiment, a limiting structure used in cooperation with the first limiting column 501 and the second limiting column 502 may be further disposed on the base 102. After the light barrier 106 is driven to rotate to the first position or the second position, the limiting structure will limit the light barrier 106 from being deflected continuously, and ensure that the light barrier 106 can be stabilized at the first position or the second position after rotating every time.
The present application further provides a light barrier and a driving device of the second embodiment, as shown in fig. 8, a driving member 801 of the present embodiment includes a second guide rail 802, a shaft 803 has a guiding ball 804, and the guiding ball 804 moves along the second guide rail 802 to drive the driving member 801. Specifically, a guide groove (not shown) may be provided on the second guide rail 802, and the guide ball 804 may be disposed in the guide groove.
By this way, not only the shaft 803 can be connected with the transmission element 801, but also the driving device body 805 can be ensured to push and pull the light barrier 806, and when the light barrier 806 rotates along the rotating shaft 807, the shaft 803 can freely slide along the second guide rail 802, thereby avoiding structural interference and jamming in the switching process. Specifically, when the driving device body 805 drives the shaft 803, the shaft 803 linearly or rotationally drives the transmission element 801, specifically, the light barrier 806 is driven by the guide ball 804 at the front end of the shaft 803 to deflect, and at this time, the guide ball 804 slides up and down in the guide groove and is not restricted and clamped; when the driving device body 805 stops driving the shaft 803, the shaft 803 is reset, and the guide ball 804 can drive the light barrier 806 to return to the original position.
Of course, in other embodiments, the connection between the shaft and the transmission member may be achieved in other manners, such as directly fixing the shaft and the transmission member, and so on.
Optionally, with continued reference to fig. 1 to fig. 3, the light switching device 101 of the vehicle light of the embodiment further includes a torsion spring 103, the torsion spring 103 is sleeved on the rotation shaft 105, one end of the torsion spring 103 is connected to the light barrier 106, and the other end of the torsion spring 103 is connected to the base 102.
When the driving device body 108 is powered off, the shaft rod 109 contracts under the action of the spring built in the driving device body 108, the torsion spring 103 further drives the transmission member 107 to rotate along the second direction, and the transmission member 107 drives the light barrier 106 to rotate from the second position to the first position, so as to increase the shielding angle of the light barrier 106 to the light beam.
The torsion spring 103 of the embodiment can effectively make up for the insufficient restoring force of the built-in spring of the driving device 104, and enhance the sensitivity of light switching.
In an application scenario, when the driving device body 108 does not drive the shaft 109, i.e. the driving device body 108 is not powered on, the light barrier 106 is stably located at the first position under the action of the reserved compression torque of the torsion spring 103, so as to form a low beam distribution. When the driving device body 108 is powered on, the shaft rod 109 moves under the driving of the driving device body 108, and the first connecting rod 601 and the second connecting rod 602 at the front end of the shaft rod 109 drive the first guide rail 503 to move together, so that the light barrier 106 swings to the second position to form high beam distribution. At the moment when the driving device body 108 is powered off, the built-in spring of the driving device body 108 can pull the shaft 109 to drive the light barrier 106 to return to the first position, and meanwhile, the torsion force of the torsion spring 103 can also help the light barrier 106 to return to the first position.
Of course, in other embodiments, the light barrier 106 may be returned to the first position by only the torsion force of the torsion spring 103.
Optionally, the light switching device 101 of the vehicle lamp of the present embodiment further includes a light barrier pressing sheet 111, and the light barrier pressing sheet 111 is used for fixing the rotating shaft 104 of the light barrier 106 on the base 102. Specifically, the light barrier pressing sheet 111 includes an upper pressing sheet 112 and a lower pressing sheet 113, the lower pressing sheet 113 is fixed on the base 102, the rotating shaft 105 is first fastened between the upper pressing sheet 112 and the lower pressing sheet 113, and then the upper pressing sheet 112 is fixed on the lower pressing sheet 113 through screws (not shown).
The embodiment adopts two light barrier pressing sheets 111 to fix two ends of the rotating shaft 105 on the base 102 respectively. In other embodiments, the number of light barrier preforms is not limited.
The light barrier pressing sheet 111 of the present embodiment can not only provide a certain space for the torsion spring 103, but also improve the flexibility of rotation of the rotating shaft 105.
Of course, in other embodiments, other fixing members may be used to fix the rotating shaft of the light barrier to the base, for example, the rotating shaft is directly fixed to the base by screws, and so on.
The present application further provides a vehicle lamp, as shown in fig. 9, fig. 9 is a schematic structural diagram of an embodiment of the vehicle lamp of the present application. This application car light 1001 includes light auto-change over device 1002 and light source 1003, and light source 1003 sets up on base 1004, and reflector 1005 reflects the light beam of light source 1003, and barn door 1006 shelters from the light of following reflector 1005 outgoing.
The structure and the operation principle of the light switching device 1002 have been described in detail in the above embodiments, and are not described herein again.
Be different from prior art, the drive arrangement's of this application embodiment axostylus axostyle is direct to be connected with the barn door, directly drives the barn door through the axostylus axostyle and rotates to adjust the angle of adjustment of barn door to the light beam, make the car light realize different light distributions. According to the technical scheme, an additional structural part is not required to be arranged between the shaft lever and the light barrier, so that the structure can be simplified, the cost is saved, the resistance introduced by an intermediate part can be avoided, and the transmission resistance of the shaft lever to the light barrier is reduced.
In addition, when the light barrier of this application embodiment is rotary motion along the rotation axis, first guide rail can freely slide between first connecting rod and second connecting rod, avoids switching process to appear that the structure interferes with the card extremely.
Further, this application embodiment can increase the restoring force of barn door through the torsional spring, effectively improves the sensitivity that light switched.
Further, this application embodiment sets up drive arrangement in the accommodation space in the base, can practice thrift the space, and can reduce to axial assembly precision requirement.

Claims (10)

1. A light switching device for a vehicular lamp, comprising:
the light barrier is used for blocking light beams of the light source, and a transmission part is arranged on the light barrier;
the driving device comprises a driving device body and a shaft rod, wherein one end of the shaft rod is connected with the driving device body, and the other end of the shaft rod is movably connected with the transmission piece;
the driving device body drives the shaft lever to move, the light barrier is driven by the transmission piece to perform turnover movement, and the shielding angle of the light beam is adjusted.
2. A light-switching device according to claim 1, wherein the transmission member comprises at least: the light barrier comprises a first limiting column and a second limiting column, wherein one end of the first limiting column and one end of the second limiting column are integrally fixed with the light barrier; the two ends of the first guide rail are respectively fixed on the first limiting column and the second limiting column;
a first connecting rod and a second connecting rod are arranged at one end of the shaft lever, which is far away from the driving device body, and the first connecting rod and the second connecting rod are arranged in parallel;
the first guide rail is arranged between the first connecting rod and the second connecting rod to form transmission.
3. The light switching device as claimed in claims 1 and 2, wherein the driving device drives the shaft to perform a linear motion or a rotational motion.
4. The light switching device of claim 1, further comprising a base, wherein the light barrier is disposed on the base via a rotating shaft, and the driving device body is disposed on the base.
5. The light switching device according to claim 1, further comprising a torsion spring, wherein the torsion spring is sleeved on the rotating shaft, one end of the torsion spring is connected to the light barrier, and the other end of the torsion spring is connected to the base;
when the driving device is powered off, the torsion spring enhances the restoring force of the light barrier rotating from the second position to the first position so as to increase the shielding angle of the light beam by the light barrier.
6. The light switching device of claim 1, wherein the driving member includes a second guide rail, and the shaft has a guide ball that moves along the second guide rail to drive the driving member.
7. The light switching device according to claim 1, further comprising a reflector disposed on the light emitting surface of the light source for reflecting the light beam emitted from the light source, wherein the light blocking plate blocks the light emitted from the reflector.
8. The high and low beam switching apparatus according to claim 1, wherein said light switching apparatus further comprises a light barrier pressing sheet for fixing a rotation shaft of said light barrier to said base.
9. A light switching device according to claim 1, wherein the base is provided with an accommodating space, and the driving device is disposed in the accommodating space.
10. A vehicular lamp characterized by comprising the light switching device according to any one of claims 1 to 9.
CN201810975572.XA 2018-08-24 2018-08-24 Car light and light auto-change over device thereof Pending CN110857769A (en)

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CN201810975572.XA CN110857769A (en) 2018-08-24 2018-08-24 Car light and light auto-change over device thereof
PCT/CN2019/081643 WO2020037992A1 (en) 2018-08-24 2019-04-08 Vehicle lamp and light switching apparatus therefor

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CN201810975572.XA CN110857769A (en) 2018-08-24 2018-08-24 Car light and light auto-change over device thereof

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