CN111795362A - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN111795362A CN111795362A CN201911054030.XA CN201911054030A CN111795362A CN 111795362 A CN111795362 A CN 111795362A CN 201911054030 A CN201911054030 A CN 201911054030A CN 111795362 A CN111795362 A CN 111795362A
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- CN
- China
- Prior art keywords
- light
- dmd
- heat dissipation
- dmd chip
- light source
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- 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.)
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Classifications
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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
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
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- 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
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- 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
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Abstract
The present invention provides a lighting device, comprising: the device comprises a shell, a light source, a DMD chip, a lens assembly and a light absorption piece. The light source and the DMD chip are respectively arranged in the shell, and the DMD chip is in an open state and a closed state; the lens assembly is arranged in the shell, light emitted by the light source is emitted from the lens assembly after passing through the DMD chip, and an emergent light path is formed between the DMD chip and the lens assembly when the DMD chip is in an open state; the light absorbing member (91) is deviated from the emergent light path and is used for absorbing the light reflected by the DMD chip (8) when the DMD chip (8) is in a closed state. From this, through DMD chip and light absorbing piece cooperation, when the DMD chip is in the off-state, light absorbing piece can absorb the light that the DMD chip reflects, can avoid the light that the DMD chip reflects to jet out from lighting device to can guarantee not to influence lighting device's performance, and, also can make light absorbing piece be located light absorbing line, can reduce whole lighting device's size.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a lighting device.
Background
In the related art, a lighting Device is disposed on a vehicle, a DMD (digital micro mirror Device-digital micro mirror Device) chip is disposed in the lighting Device, and when the DMD chip is turned off, light reflected by the DMD chip is emitted from the lighting Device, which affects usability of the lighting Device. In addition, the whole size of the lighting device is large, and the installation space of the vehicle is large.
Disclosure of Invention
In view of the above, the present invention is directed to a lighting device to solve the problem of light emitted from the lighting device when the DMD chip is turned off.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
an illumination device comprising: a housing; the DMD chip is arranged in the shell and provided with an opening state and a closing state; the lens component is arranged on the shell, light emitted by the light source is emitted from the lens component after passing through the DMD chip, and an emergent light path is formed between the DMD chip and the lens component when the DMD chip is in the open state; and the light absorption piece deviates from the emergent light path and is used for absorbing the light reflected by the DMD chip when the DMD chip is in a closed state.
In some examples of the invention, the light absorber is located above the exit light path.
In some examples of the present invention, the light absorbing member is provided with a concave portion that is concave upward toward a bottom edge of the outgoing light path.
In some examples of the invention, the recess is centrally disposed at a bottom edge of the light absorber.
In some examples of the invention, the light absorber is disposed proximate to the exit light path.
In some examples of the present invention, a shortest distance of the bottom edge of the light absorbing member from the exit light path is not more than 10 mm.
In some examples of the present invention, the light absorbing member is fixed on an inner wall surface of the case.
In some examples of the present invention, the light absorbing member is a black absorbing member.
In some examples of the present invention, the area corresponding to the light absorbing member is a setting area, and the center line of the outgoing light path passes through a central area of the setting area after being deflected by a preset angle α.
In some examples of the invention, the α is 48 ° or 68 °.
Compared with the prior art, the lighting device has the following advantages:
according to the lighting device, the DMD chip is matched with the light absorbing piece, when the DMD chip is in a closed state, the light absorbing piece can absorb the light reflected by the DMD chip, the light reflected by the DMD chip can be prevented from being emitted out of the lighting device, the usability of the lighting device can be guaranteed not to be affected, the light absorbing piece can be located on the light absorbing line, and the size of the whole lighting device can be reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the interior of a housing of a lighting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a heat sink fin and housing of a lighting device according to an embodiment of the present invention;
FIG. 3 is a schematic view of another angle of the heat sink fins and housing of a lighting device according to an embodiment of the present invention;
fig. 4 is a sectional view of a partial structure of a lighting device according to an embodiment of the present invention;
FIG. 5 is an assembly schematic of a housing, heat sink fins, mounting bracket and air supply apparatus of a lighting device according to an embodiment of the invention;
FIG. 6 is a cross-sectional view of a lighting device according to an embodiment of the present invention;
fig. 7 is a schematic view of a light absorbing member of a lighting device according to an embodiment of the present invention.
Description of reference numerals:
a lighting device 10;
a housing 1; a light source heat dissipation area 11; a DMD heat dissipation area 12; a light source mounting area 13; a DMD mounting area 14;
a flow dividing structure 2; a first flow dividing surface 21; a second flow splitting surface 22; a flow distribution plate 23;
a light source heat dissipation fin 3; a DMD heat sink fin 4;
a mounting bracket 5; an air blowing device 51;
a heat conducting bridge cut-off structure 6;
a light source 7; a DMD chip 8;
a lens assembly 9;
a light absorber 91; a recess 92.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 7, a lighting device 10 according to an embodiment of the present invention may be a pixel lamp, the lighting device 10 including: the device comprises a shell 1, a light source 7, a DMD chip 8, a lens assembly 9, a light absorption piece 91, a flow dividing structure 2 and an air supply device. Light source 7, DMD chip 8 set up respectively in casing 1, DMD chip 8 has an on-state and an off-state, lens subassembly 9 sets up in casing 1, and the light that light source 7 sent jets out from lens subassembly 9 after passing through DMD chip 8, and when DMD chip 8 was in the on-state, had the outgoing light path between DMD chip 8 and the lens subassembly 9, the light that light source 7 sent can be jetted out from lens subassembly 9 along the outgoing light path. The light absorbing member 91 is disposed offset from the outgoing light path, and the light absorbing member 91 is configured to absorb the light reflected by the DMD chip 8 when the DMD chip 8 is in the off state.
Wherein, when lighting device 10 is required to illuminate, DMD chip 8 is in the on-state, the light that the light source sent jets out from lens subassembly 9, reach the work purpose that lighting device 10 throws light on, when lighting device 10 is not required to illuminate, DMD chip 8 is in the off-state, light absorbing piece 91 absorbs the light that DMD chip 8 reflects totally, can avoid the light that DMD chip 8 reflects to jet out from lighting device 10, thereby can guarantee not to influence lighting device 10's performance, and, also, can make light absorbing piece 91 be located the light absorption circuit, can reduce the size of whole lighting device 10, thereby can save the installation space of vehicle.
A light source installation area 13 and a DMD installation area 14 are formed on the inner wall surface of the shell 1, a light source is arranged in the shell 1 and located in the light source installation area 13, a DMD chip is arranged in the shell 1 and located in the DMD installation area 14, a light source heat dissipation area 11 and a DMD heat dissipation area 12 are formed on the outer wall surface of the shell 1, the light source heat dissipation area 11 corresponds to the light source installation area 13, the DMD heat dissipation area 12 corresponds to the DMD installation area 14, the DMD chip dissipates heat through the DMD heat dissipation area 12, and the light source dissipates heat through the light source heat dissipation area 11. The air supply device is arranged outside the shell 1, the flow dividing structure 2 is arranged on the outer wall surface of the shell 1, the flow dividing structure 2 is located between the light source heat dissipation area 11 and the DMD heat dissipation area 12, the flow dividing structure 2 is used for guiding air to respectively blow to the light source heat dissipation area 11 and the DMD heat dissipation area 12, and the air blown out by the air supply device is guided by the flow dividing structure 2 to respectively blow to the light source heat dissipation area 11 and the DMD heat dissipation area 12.
When the lighting device 10 works, the light source and the DMD chip generate heat, then the DMD chip transmits the heat to the DMD heat dissipation area 12, the light source transmits the heat to the light source heat dissipation area 11, meanwhile, the air supply device blows air to the shunting structure 2, under the action of the shunting structure 2, a part of air can be guided to flow to the DMD heat dissipation area 12, and the other part of air can be guided to flow to the light source heat dissipation area 11, then the air flowing to the DMD heat dissipation area 12 can dissipate the heat of the DMD heat dissipation area 12, the air flowing to the light source heat dissipation area 11 can dissipate the heat of the light source heat dissipation area 11 and the DMD heat dissipation area 12, so that the temperature of the light source heat dissipation area and the DMD heat dissipation area 12 is reduced, the heat generated by the lighting device 10 can be dissipated, the lighting device 10 can be prevented from being overheated, and the working reliability of the lighting device 10 can be ensured, and then can prolong lighting device 10's life to, the structure of the reposition of redundant personnel structure 2 of this application is simple, and it is small to occupy, can simplify lighting device 10's structure, also can reduce lighting device 10 occupation space, thereby can make lighting device 10 easy to assemble, also can reduce lighting device 10's manufacturing cost.
Meanwhile, the shunting structure 2 is arranged between the light source heat dissipation area 11 and the DMD heat dissipation area 12 at intervals, hot air of the light source heat dissipation area 11 can be prevented from being blown to the DMD heat dissipation area 12, hot air of the DMD heat dissipation area 12 can also be prevented from being blown to the light source heat dissipation area 11, and the light source heat dissipation area 11 and the DMD heat dissipation area 12 can be guaranteed to dissipate heat completely, so that the working reliability of a light source and a DMD chip can be guaranteed, and the service life of the light source and the DMD chip can be prolonged. In addition, through setting up air supply arrangement, can blow wind to reposition of redundant personnel structure 2 fast, can promote the radiating efficiency to lighting device 10.
As shown in fig. 4, the lighting device 10 further includes: heat conduction bridge cut-off structure 6, heat conduction bridge cut-off structure 6 sets up between light source installation region 13 and DMD installation region 14, and heat conduction bridge cut-off structure 6 is used for at least partly blocking the heat that light source installation region 13 conducts to DMD installation region 14, through setting up heat conduction bridge cut-off structure 6, can reduce the heat conduction of light source installation region 13 to DMD installation region 14's volume, also can reduce the heat conduction of DMD installation region 14 to light source installation region 13's volume, can guarantee the operational reliability of light source and DMD chip, thereby can prolong the life of light source and DMD chip.
From this, through setting up reposition of redundant personnel structure 2 and air supply arrangement, can make some wind dispel the heat to the light source, also can make another part wind dispel the heat to the DMD chip, can avoid lighting device 10 overheated, and, also, can avoid light source heat dissipation area 11 hot-blast being blown DMD heat dissipation area 12, can also avoid DMD heat dissipation area 12 hot-blast being blown light source heat dissipation area 11, can guarantee the operational reliability of DMD chip, and simultaneously, lighting device 10 of this application is simple in structure, occupation space is little, can be easy to assemble, also can reduce lighting device 10's manufacturing cost.
In some embodiments of the present invention, as shown in fig. 6, the light absorbing member 91 may be located above the emergent light path, and when the DMD chip 8 is in the closed state, the light absorbing member 91 can absorb the light reflected by the DMD chip 8 conveniently, so that the arrangement position of the light absorbing member 91 can be more reasonable, and the overall size of the lighting device 10 can also be reduced.
In some embodiments of the present invention, as shown in fig. 7, the bottom edge of the light absorbing member 91 facing the exit light path may be provided with an upwardly concave recess 92, the recess 92 may be set to be away from the exit light path, and when the DMD chip 8 is in the open state, the light emitted from the light source 7 may be ensured to be emitted from the lens assembly 9 along the exit light path.
In some embodiments of the present invention, as shown in fig. 7, the concave portion 92 is centrally disposed on the bottom edge of the light absorbing member 91, so as to make the light absorbing member 91 better avoid the outgoing light path, and when the DMD chip 8 is in the open state, it can further ensure that the light emitted from the light source 7 is emitted from the lens assembly 9 along the outgoing light path, so as to ensure the working performance of the lighting device 10.
In some embodiments of the present invention, as shown in fig. 6, the light absorber 91 is disposed near the exit light path, for example: the light absorbing member 91 may be disposed near the upper edge of the outgoing light path, and this arrangement can further reduce the size of the lighting device 10, which can further reduce the installation space occupied by the lighting device 10.
In some embodiments of the present invention, the shortest distance between the bottom edge of the light absorbing member 91 and the exit light path is not more than 10mm, and this arrangement makes the spacing distance between the light absorbing member 91 and the exit light path more appropriate, and the size of the lighting device 10 can be further reduced.
In some embodiments of the present invention, as shown in fig. 6, the light absorbing member 91 may be fixed on an inner wall surface of the case 1, the case 1 may include a first case (i.e., a rear case) and a second case (i.e., a front case) coupled to the first case, the second case being located at a front side of the first case, specifically, an inner wall surface of a top wall of the second case may be provided with a mounting post, the mounting post may be provided with a first threaded mounting hole, the light absorbing member 91 may be provided in a plate-like structure, the absorbing member 91 may be provided with a second threaded mounting hole, a bolt may pass through both the first threaded mounting hole and the second threaded mounting hole to fix the light absorbing member 91 on the mounting post, and an inner wall surface of a bottom wall of the second case may be provided with a reflector, the light absorbing member 91 may be arranged approximately parallel to an up-down direction, the light absorbing member 91 may be arranged spaced apart from, that is, the light absorbing member 91 may be provided on the inner wall surface of the front case (i.e., the second case), and further, both the light absorbing member 91 and the reflecting mirror may be provided in the front case, so that the light absorbing member 91 can be reliably mounted in the lighting device 10, and the light absorbing member 91 can be prevented from being separated from the case 1.
In some embodiments of the present invention, the light absorbing member 91 may be a black absorbing member, and the black absorbing member has good light absorbing performance, so that after the light irradiates on the light absorbing member 91, the light absorbing member 91 absorbs the light, and the working performance of the light absorbing member 91 can be improved.
In some embodiments of the present invention, the area corresponding to the light absorbing member 91 is a setting area, and the central line of the outgoing light path passes through the central area of the setting area after deflecting by a preset angle α, wherein the DMD chip 8 has a micro-mirror, and in a process that the micro-mirror moves from an open state to a closed state, light at the outgoing light path passes through the central area of the setting area after deflecting by the preset angle α, so that all light reflected by the DMD chip 8 is irradiated on the light absorbing member 91, and thus light reflected by the DMD chip 8 can be further prevented from being emitted from the lighting device 10. It should be noted that, the above description that the DMD chip 8 has the on state and the off state means that the micromirror of the DMD chip 8 has the on state and the off state, and the micromirror can move between the on state and the off state.
In some embodiments of the invention, α may be set to 48 ° or 68 °, for example: α is set to 48 °, wherein the flip angle of the DMD chip 8 is 24 °, the DMD is flipped over +12 ° in the open state, light is emitted from the lens assembly 9, the DMD chip 8 is flipped over-12 ° in the closed state, light is absorbed by the light absorbing member 91 and cannot be emitted, and since light is horizontal when emitted, the light is shifted upward by 48 ° when absorbed. It should be noted that the size of the light absorbing member 91 can be consistent with the size of the light spot when the absorbed light reaches the position of the light absorbing member 91, and the size of the light absorbing member 91 can be set more reasonably by the arrangement.
In some embodiments of the present invention, one part of the air supply device corresponds to the light source heat dissipation area 11, and the other part of the air supply device corresponds to the DMD heat dissipation area 12, and it should be noted that when the air supply device is in operation, the air supply device blows a part of the air to the light source heat dissipation area 11, and simultaneously blows another part of the air to the DMD heat dissipation area 12, so that the light source heat dissipation area 11 and the DMD heat dissipation area 12 can be quickly dissipated.
In some embodiments of the present invention, the air supply area of one part of the air supply device is larger than the air supply area of the other part of the air supply device, or it can be understood that the area of the air supply device corresponding to the light source heat dissipation area 11 is larger than the area of the air supply device corresponding to the DMD heat dissipation area 12, wherein the heat generated by the light source is larger than the heat generated by the DMD chip in a unit time, so that more air can be blown to the light source heat dissipation area 11, the heat dissipation effect on the light source heat dissipation area 11 can be ensured, the heat dissipation effect on the DMD heat dissipation area 12 can also be ensured, and the arrangement form of the air supply device can be more reasonable.
In some embodiments of the present invention, the air supply device is disposed facing the flow dividing structure 2, the DMD heat dissipation area 12 is located above the flow dividing structure 2, the light source heat dissipation area 11 is located below the flow dividing structure 2, that is, the DMD heat dissipation area 12 is located above the flow dividing structure 2, the light source heat dissipation area 11 is located below the flow dividing structure 2, and the flow dividing structure 2 is located between the rotation axis of the air supply device and the upper edge of the rotation track of the air supply device, so that the area of the air supply device corresponding to the light source heat dissipation area 11 is larger than the area of the air supply device corresponding to the DMD heat dissipation area 12, and the heat dissipation effect of the lighting device 10 can be ensured.
In some embodiments of the present invention, the flow dividing structure 2 is spaced apart from the air supply device, wherein, in the front-rear direction in fig. 4, the flow dividing structure 2 is spaced apart from the air supply device, so that the arrangement can avoid the flow dividing structure 2 from contacting the air supply device, and can prevent the flow dividing structure 2 from interfering with the air supply device, thereby ensuring the operational reliability of the flow dividing structure 2 and the air supply device.
In some embodiments of the present invention, the light source heat dissipation area 11 may be provided with heat dissipation fins, the heat dissipation fins are spaced apart from the air supply device, but the distance between the heat dissipation fins and the air supply device is less than the distance between the flow dividing structure 2 and the air supply device. Wherein, the radiating fin has the radiating effect, so set up and to make heat transfer to the radiating fin on the regional 11 of light source heat dissipation, the radiating fin is with the heat effluvium, thereby can dispel the heat to the regional 11 of light source heat dissipation fast, and then can promote the radiating efficiency to the regional 11 of light source heat dissipation, and, also can make air supply arrangement blow wind to the radiating fin fast, can take away the heat on the radiating fin fast, can also avoid radiating fin and air supply arrangement contact, can prevent radiating fin and air supply arrangement mutual interference, thereby can guarantee radiating fin and air supply arrangement's operational reliability.
In some embodiments of the present invention, the heat conduction bridge-cut structure 6 is formed on the inner wall surface and/or the outer wall surface of the casing 1, that is, the heat conduction bridge-cut structure 6 may be provided only on the inner wall surface of the casing 1, only on the outer wall surface of the casing 1, and also on both the inner wall surface and the outer wall surface of the casing 1, for example: the heat conduction bridge cut-off structure 6 may be provided only on the inner wall surface of the casing 1.
In some embodiments of the present invention, the heat conduction bridge cut-off structure 6 may include a groove, and when the lighting device 10 operates, the groove may reduce the amount of heat conducted from the light source installation region 13 to the DMD installation region 14, and may also reduce the amount of heat conducted from the DMD installation region 14 to the light source installation region 13, so as to implement the working performance of the heat conduction bridge cut-off structure 6, and further, the arrangement structure of the heat conduction bridge cut-off structure 6 may be more reasonable.
In some embodiments of the present invention, the groove may be a continuous groove, or the groove may be a plurality of grooves spaced apart, so that the amount of heat conducted from the light source mounting region 13 to the DMD mounting region 14 and the amount of heat conducted from the DMD mounting region 14 to the light source mounting region 13 can be further reduced, and the operational reliability of the light source and the DMD chip can be further ensured, thereby further prolonging the service life of the light source and the DMD chip.
In some embodiments of the present invention, the groove may be configured as an arc shape bending upwards, the DMD mounting area 14 is located above the groove, and the light source mounting area 13 is located below the groove, so that the groove can better block heat from transferring between the DMD mounting area 14 and the light source mounting area 13, and the arrangement positions of the DMD mounting area 14, the groove, and the light source mounting area 13 can be more reasonable.
In some embodiments of the present invention, the grooves extend to both sides across the DMD mounting region 14, wherein the grooves extend to both sides across the DMD mounting region 14 in the width direction of the lighting device 10, which can increase the arrangement area of the grooves, and can ensure that the DMD mounting region 14 and the light source mounting region 13 are spaced apart, so that the heat of the light source mounting region 13 can be prevented from being transferred to the DMD mounting region 14.
In some embodiments of the present invention, the shunt structure 2 is disposed corresponding to the heat conduction bridge-cut structure 6, wherein the heat conduction bridge-cut structure 6 is disposed on the inner wall surface of the casing 1, the shunt structure 2 is disposed on the outer wall surface of the casing 1, and the shunt structure 2 is disposed opposite to the heat conduction bridge-cut structure 6.
In some embodiments of the present invention, the flow dividing structure 2 integrally extends from the outer surface of the housing 1 to a direction away from the inner wall surface of the housing 1, and it can also be understood that the flow dividing structure 2 protrudes outward from the housing 1, so that the arrangement can ensure that the light source heat dissipation area 11 and the DMD heat dissipation area 12 are separated, a part of the wind can be guided to the light source heat dissipation area 11, and the other part of the wind can be guided to the DMD heat dissipation area 12, so that the arrangement of the flow dividing structure 2 can be more reasonable.
In some embodiments of the present invention, as shown in fig. 2 to 4, the flow dividing structure 2 may have a first flow dividing surface 21 and a second flow dividing surface 22, the first flow dividing surface 21 guides the air toward the DMD heat dissipation area 12, and the second flow dividing surface 22 guides the air toward the light source heat dissipation area 11. Wherein, after blowing to reposition of redundant personnel structure 2, some wind is guided to DMD heat dissipation region 12 by first reposition of redundant personnel face 21 after 21 contacts with first reposition of redundant personnel face, and another part wind is guided to light source heat dissipation region 11 by second reposition of redundant personnel face 22 after 22 contacts with the second reposition of redundant personnel face to can avoid producing the radiating wind of DMD heat dissipation region 12 and the radiating wind of light source heat dissipation region 11 and disturb, and then can guarantee the radiating effect to DMD heat dissipation region 12 and light source heat dissipation region 11.
In some embodiments of the present invention, the flow dividing structure 2 may be configured as the flow dividing plate 23, but the present invention is not limited thereto, and the flow dividing structure 2 may also be configured as a structure that performs the same function as the flow dividing plate 23. The diversion plate 23 extends along the width direction of the lighting device 10, so that the length of the diversion structure 2 in the width direction of the lighting device 10 can be increased, the DMD heat dissipation area 12 can be better spaced from the light source heat dissipation area 11, and therefore hot air at the light source heat dissipation area 11 can be further prevented from being blown to the DMD heat dissipation area 12, and hot air at the DMD heat dissipation area 12 can also be further prevented from being blown to the light source heat dissipation area 11.
In some embodiments of the present invention, as shown in fig. 4, the light source heat dissipation area 11 is located at the lower portion of the housing 1, the light source heat dissipation area 11 is configured as an inclined slope with a high rear end and a low front end, the light source heat dissipation fin 3 (i.e. a heat dissipation fin) may be disposed on the light source heat dissipation area 11, and the light source heat dissipation fin 3 has a heat dissipation function, so that heat in the light source heat dissipation area 11 is transferred to the light source heat dissipation fin 3, and the light source heat dissipation fin 3 dissipates the heat, so that the light source heat dissipation area 11 can be quickly dissipated, and the heat dissipation efficiency of the light source heat dissipation area 11 can be improved.
In some embodiments of the present invention, as shown in fig. 3 and 4, the DMD heat dissipation area 12 is located at the upper portion of the housing 1, and the DMD heat dissipation area 12 may be provided with a DMD heat dissipation fin 4, so that heat in the DMD heat dissipation area 12 can be transferred to the DMD heat dissipation fin 4, and the DMD heat dissipation fin 4 dissipates the heat, so as to quickly dissipate the heat in the DMD heat dissipation area 12, thereby improving the heat dissipation efficiency of the DMD heat dissipation area 12.
As shown in fig. 5, the lighting device 10 may further include: mounting bracket 5, mounting bracket 5 are suitable for installation air supply equipment 51 (promptly air feeder), and air supply equipment 51 can be the fan, and mounting bracket 5 connects in casing 1, and mounting bracket 5 fixed mounting is on the surface of casing 1, and a part of DMD radiating fin 4 is located mounting bracket 5, and the other part of DMD radiating fin 4 stretches out outside mounting bracket 5 moreover. Wherein, air supply equipment 51 during operation can blow wind fast to DMD radiating fin 4, light source radiating fin 3, DMD radiating area 12, light source radiating area 11 and reposition of redundant personnel structure 2 to can promote lighting device 10's radiating efficiency, and then can avoid lighting device 10 to overtemperature. Meanwhile, the mounting bracket 5 can block wind from flowing randomly, so that air can flow in the flow channel between the metal radiating fins, and heat exchange between the air and the radiating fins is realized.
In some embodiments of the invention, the first and second flow splitting surfaces 21, 22 are two surfaces of the flow splitting structure 2 facing away from each other, such as: in the up-down direction of lighting device 10, first reposition of redundant personnel face 21 is located the upper surface of reposition of redundant personnel structure 2, and second reposition of redundant personnel face 22 is located the lower surface of reposition of redundant personnel structure 2, so set up and to guarantee that first reposition of redundant personnel face 21 can lead DMD heat dissipation area 12 with wind, also can guarantee that second reposition of redundant personnel face 22 can lead wind to light source heat dissipation area 11, can make first reposition of redundant personnel face 21 and second reposition of redundant personnel face 22 set up the position more reasonable.
In some embodiments of the present invention, as shown in fig. 2, a plurality of DMD heat dissipation fins 4 are arranged at intervals in a width direction of the lighting device 10, and the plurality of DMD heat dissipation fins 4 are configured to: the middle DMD heat dissipation fin 4 extends vertically, and it can also be understood that the middle DMD heat dissipation fin 4 extends vertically in the lighting device 10, and the distance between the lower end of any other DMD heat dissipation fin 4 and the middle DMD heat dissipation fin 4 is smaller than the distance between the upper end of any other DMD heat dissipation fin 4 and the middle DMD heat dissipation fin 4. Wherein, form the runner between the adjacent DMD radiating fin 4, flow along the runner to the radiating wind of DMD radiating area 12, set up the length that can prolong the runner like this, can make wind in the runner and DMD radiating fin 4, DMD radiating area 12 carry out abundant heat transfer to can take away more heats on the DMD radiating area 12.
In some embodiments of the present invention, the shunting structure 2 may be configured to guide wind upwards to the DMD heat dissipation area 12 and downwards to the light source heat dissipation area 11, and it should be explained that the shunting structure 2 may guide wind upwards to the DMD heat dissipation area 12 and may also guide wind downwards to the light source heat dissipation area 11, so that it may be further ensured that wind is guided to the DMD heat dissipation area 12 and the light source heat dissipation area 11.
According to the vehicle of the embodiment of the invention, the lighting device 10 comprises the lighting device 10 of the embodiment, the lighting device 10 is arranged and installed on the vehicle, the lighting device 10 can enable one part of wind to radiate heat to the light source and enable the other part of wind to radiate heat to the DMD chip, overheating of the lighting device 10 can be avoided, hot wind in the light source radiating area 11 can be prevented from being blown to the DMD radiating area 12, working reliability of the DMD chip can be guaranteed, meanwhile, the lighting device 10 is simple in structure, small in occupied space and convenient to install, production cost of the lighting device 10 can be reduced, accordingly driving safety of the vehicle can be guaranteed, and production cost of the vehicle can be reduced.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A lighting device (10), comprising:
a housing (1);
the light source (7) and the DMD chip (8) are respectively arranged in the shell (1), and the DMD chip (8) is in an open state and a closed state;
the lens component (9), the lens component (9) is arranged on the shell (1), the light emitted by the light source (7) is emitted from the lens component (9) after passing through the DMD chip (8), and an emergent light path is formed between the DMD chip (8) and the lens component (9) when the DMD chip (8) is in the open state;
a light absorber (91), the light absorber (91) deviating from the exit light path and used for absorbing the light reflected by the DMD chip (8) when the DMD chip (8) is in a closed state.
2. The illumination device (10) according to claim 1, wherein the light absorber (91) is located above the exit light path.
3. The illumination device (10) according to claim 2, wherein the light absorbing member (91) is provided with a concave portion (92) that is concave upward toward a bottom edge of the outgoing light path.
4. The lighting device (10) according to claim 3, wherein the recess (92) is arranged centrally at a bottom edge of the light absorber (91).
5. The illumination device (10) according to claim 2, wherein the light absorber (91) is disposed near the exit light path.
6. The illumination device (10) according to claim 5, wherein a shortest distance of a bottom edge of the light absorbing member (91) from the exit light path is not more than 10 mm.
7. The illumination device (10) according to claim 1, wherein the light absorbing member (91) is fixed on an inner wall surface of the case (1).
8. The lighting device (10) according to claim 1, wherein the light absorber (91) is a black absorber.
9. The illumination device (10) according to claim 1, wherein the region corresponding to the light absorbing member (91) is a setting region, and the center line of the outgoing light path passes through a central region of the setting region after being deflected by a preset angle α.
10. The lighting device (10) according to claim 9, wherein the a is 48 ° or 68 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054030.XA CN111795362A (en) | 2019-10-31 | 2019-10-31 | Lighting device |
| PCT/CN2020/120169 WO2021082886A1 (en) | 2019-10-31 | 2020-10-10 | Lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911054030.XA CN111795362A (en) | 2019-10-31 | 2019-10-31 | Lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111795362A true CN111795362A (en) | 2020-10-20 |
Family
ID=72805793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911054030.XA Pending CN111795362A (en) | 2019-10-31 | 2019-10-31 | Lighting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111795362A (en) |
| WO (1) | WO2021082886A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021063312A1 (en) * | 2019-09-30 | 2021-04-08 | 长城汽车股份有限公司 | Lighting device and vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981216A (en) * | 2004-06-30 | 2007-06-13 | 3M创新有限公司 | Phosphor based illumination system having a long pass reflector and method of making same |
| CN200989962Y (en) * | 2006-11-14 | 2007-12-12 | 赵捷 | Colourful infrared imaging device based on diffraction grating |
| CN106500038A (en) * | 2016-11-03 | 2017-03-15 | 武汉通畅汽车电子照明有限公司 | A kind of intelligent automotive light module relay lens group and its application |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19737653A1 (en) * | 1997-08-29 | 1999-03-04 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | Lighting device for vehicles and operating method for such a lighting device |
| DE102010048659B4 (en) * | 2010-10-15 | 2012-05-03 | Automotive Lighting Reutlingen Gmbh | Lighting device of a motor vehicle |
| DE102015016048A1 (en) * | 2015-12-11 | 2017-06-14 | Audi Ag | lighting device |
| DE102016209648A1 (en) * | 2016-06-02 | 2017-12-07 | Osram Gmbh | Lighting device with sensor on the absorber |
| DE102016209645A1 (en) * | 2016-06-02 | 2017-12-07 | Osram Gmbh | Lighting device with sensor between optics and absorber |
| AT519775B1 (en) * | 2017-03-28 | 2018-12-15 | Zkw Group Gmbh | Vehicle headlight and cooling system |
| DE102017213102A1 (en) * | 2017-07-28 | 2019-01-31 | Osram Gmbh | LIGHTING DEVICE WITH A LIGHTING SOURCE FOR THE LIGHTING OF LIGHTING LIGHT |
| EP3530520A1 (en) * | 2018-02-23 | 2019-08-28 | ZKW Group GmbH | Light module for a motor vehicle headlamp |
-
2019
- 2019-10-31 CN CN201911054030.XA patent/CN111795362A/en active Pending
-
2020
- 2020-10-10 WO PCT/CN2020/120169 patent/WO2021082886A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1981216A (en) * | 2004-06-30 | 2007-06-13 | 3M创新有限公司 | Phosphor based illumination system having a long pass reflector and method of making same |
| CN200989962Y (en) * | 2006-11-14 | 2007-12-12 | 赵捷 | Colourful infrared imaging device based on diffraction grating |
| CN106500038A (en) * | 2016-11-03 | 2017-03-15 | 武汉通畅汽车电子照明有限公司 | A kind of intelligent automotive light module relay lens group and its application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021063312A1 (en) * | 2019-09-30 | 2021-04-08 | 长城汽车股份有限公司 | Lighting device and vehicle |
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| Publication number | Publication date |
|---|---|
| WO2021082886A1 (en) | 2021-05-06 |
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Application publication date: 20201020 |