CN113324228A - Light-emitting structure of thick-wall part - Google Patents
Light-emitting structure of thick-wall part Download PDFInfo
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- CN113324228A CN113324228A CN202110609255.8A CN202110609255A CN113324228A CN 113324228 A CN113324228 A CN 113324228A CN 202110609255 A CN202110609255 A CN 202110609255A CN 113324228 A CN113324228 A CN 113324228A
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- 238000009792 diffusion process Methods 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims description 14
- 230000002146 bilateral effect Effects 0.000 claims description 6
- 239000004417 polycarbonate Substances 0.000 claims description 6
- 229920000515 polycarbonate Polymers 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000001678 irradiating effect Effects 0.000 abstract description 3
- 239000011324 bead Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001465382 Physalis alkekengi Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
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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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
- F21S43/31—Optical layout thereof
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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
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
- F21S43/26—Refractors, transparent cover plates, light guides or filters not provided in groups F21S43/235 - F21S43/255
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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
- F21W2103/00—Exterior vehicle lighting devices for signalling purposes
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Abstract
The invention discloses a thick-wall part light-emitting structure which comprises a lamp holder, and a thick-wall part and a light-emitting part which are arranged on the lamp holder, wherein at least one light-emitting unit is arranged behind the light-emitting surface of the thick-wall part, and at least one light-emitting part is arranged below each light-emitting unit; the light emitting unit comprises a front reflecting surface and a rear reflecting surface which are symmetrically arranged above the light emitting piece in a front-back mode, and a secondary reflecting surface which is positioned behind the rear reflecting surface; and one part of light of the light-emitting piece is reflected by the front reflecting surface and then emitted from the direct irradiating area of the light-emitting surface, the other part of light of the light-emitting piece is reflected by the front reflecting surface and the secondary reflecting surface in sequence and then emitted from the diffusing area of the light-emitting surface, and the direct irradiating area and the diffusing area are adjacent to each other in the width direction of the thick-walled piece. The light of the light-emitting piece is reflected by the front reflecting surface and the rear reflecting surface and then is respectively emitted from the direct projection area and the adjacent diffusion area, so that the light utilization rate is improved, the number of the light-emitting piece is reduced, the heat dissipation performance of the lamp is improved, and the cost of the light-emitting structure is reduced.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to a light-emitting structure of a thick-wall part.
Background
The signal lamp in the automobile mostly adopts a light-emitting structure of a thick-wall part. The current light-emitting structure of the thick-wall part mainly has two light-emitting modes: one is that an LED lamp bead 102 is arranged behind a thick-walled member, as shown in fig. 1, light is emitted directly from the rear of the thick-walled member 101 and emitted from a light-emitting surface 104 of the thick-walled member 101, and this light-emitting structure has the problem of uneven light emission, so that the light-emitting surface 104 of the thick-walled member 101 presents granular sensation and the light-emitting quality is poor; the other is to arrange the LED beads 102 below the thick-walled member 101, as shown in fig. 2, the rear surface of the thick-walled member 101 is set as a reflection surface 103, light rays are emitted from the lower side of the thick-walled member 101 to the reflection surface 103, and are reflected by the reflection surface 103 into parallel light rays and then emitted from the light emitting surface 104 of the thick-walled member 101. And, these two kinds of luminous modes among the prior art, light utilization ratio is lower, in order to guarantee luminance, needs the intensive arrangement of a great number of LED lamp pearl for the phenomenon of generating heat is comparatively serious in the signal lamp, needs to install aluminium system fin on the PCB board in order to assist the heat dissipation, has further increased lamps and lanterns cost, and the phenomenon of generating heat has also influenced the life of signal lamp.
Therefore, it is desirable to provide a light emitting structure of a thick-walled member with high light utilization rate, good heat dissipation effect, low cost and uniform light emission.
Disclosure of Invention
The utility model provides a light utilization rate is high, the radiating effect is good, with low costs and luminous even thick-walled spare light-emitting structure is provided to the not enough of luminous inhomogeneous and with high costs of thick-walled spare among the prior art of overcoming.
The technical scheme of the application provides a thick-walled piece light-emitting structure, including the lighting fixture and install thick-walled piece and light-emitting piece on the lighting fixture, the light-emitting surface rear of thick-walled piece is provided with at least one light-emitting unit, the below of every light-emitting unit is provided with at least one light-emitting piece;
the light emitting unit comprises a front reflecting surface, a rear reflecting surface and a secondary reflecting surface, the front reflecting surface and the rear reflecting surface are symmetrically arranged above the light emitting piece in front and at the back, and the secondary reflecting surface is positioned behind the rear reflecting surface;
the light emitting surface comprises a direct incidence area and a diffusion area, and the direct incidence area and the diffusion area are adjacent in the width direction of the thick-wall part;
and one part of light of the light-emitting piece is reflected by the front reflecting surface and then emitted from the direct emitting area, and the other part of light of the light-emitting piece is reflected by the rear reflecting surface and the secondary reflecting surface in sequence and then emitted from the diffusion area.
Further, a junction line of the front reflection surface and the rear reflection surface is located above the light emitting member, the front reflection surface extends forward and upward from the junction line, and the rear reflection surface extends rearward and upward from the junction line;
the light of the light-emitting piece forms parallel light after being reflected by the front reflecting surface and is emitted towards the front, and the light of the light-emitting piece forms parallel light after being reflected by the rear reflecting surface and is emitted towards the rear.
Further, the secondary reflecting surface comprises an incident reflecting surface and an emergent reflecting surface, the incident reflecting surface is positioned in the area right behind the rear reflecting surface and is completely shielded by the rear reflecting surface, the emergent reflecting surface is positioned on one side of the incident reflecting surface, and at least part of the emergent reflecting surface extends out of the area right behind the rear reflecting surface;
the light reflected by the rear reflecting surface is reflected by the incident reflecting surface and then emitted to the emergent reflecting surface, and the light is reflected by the emergent reflecting surface and then emitted from the diffusion area.
Further, the secondary reflecting surface is arranged on the rear surface of the thick-wall part, and the emergent reflecting surface and the incident reflecting surface are arranged in bilateral symmetry.
Further, the width of the direct area is equal to the width of the diffusion area.
Further, the incident reflection surface comprises a first incident reflection surface and a second incident reflection surface which are arranged in a bilateral symmetry mode, and the emergent reflection surface comprises a first emergent reflection surface and a second emergent reflection surface;
the first emergent reflection surface is arranged on one side of the first incident reflection surface opposite to the second incident reflection surface, and the second emergent reflection surface is arranged on one side of the second incident reflection surface opposite to the first incident reflection surface.
Further, the diffusion region includes a first diffusion region and a second diffusion region;
the light reflected by the rear reflecting surface is reflected by the first incident reflecting surface and the first emergent reflecting surface and then is emitted from the first diffusion area;
and the light reflected by the rear reflecting surface is reflected by the second incident reflecting surface and then is emitted from the second diffusion area.
Further, the width of the first diffusion region is equal to the width of the second diffusion region.
Further, the light emitting units are continuously arranged along the width direction of the thick-walled member.
Further, the thick-walled part is integrally formed by injection molding of a polycarbonate material.
After adopting above-mentioned technical scheme, have following beneficial effect:
the light rays of the light-emitting part are emitted into the thick-wall part towards the upper part and then emitted to the front reflecting surface and the rear reflecting surface, wherein the light rays emitted to the front reflecting surface are emitted from the direct emitting area of the light-emitting surface, and the light rays emitted to the rear reflecting surface are emitted from the diffusion area adjacent to the direct emitting area, so that the light ray utilization rate is improved, and the cost of the light-emitting structure is reduced;
the light utilization rate of the illuminating parts is high, the number of the illuminating parts required by the illuminating surfaces with the same area is small, the arrangement density of the illuminating parts is low, the radiating effect is good, and radiating fins do not need to be arranged on the lamp bracket.
Drawings
The disclosure of the present application will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic diagram of a light-emitting structure of a thick-walled component in the prior art;
FIG. 2 is a second schematic view of a light-emitting structure of a thick-wall device in the prior art;
FIG. 3 is a schematic diagram of a light-emitting structure of a thick-wall member according to an embodiment of the present application;
FIG. 4 is an exploded view of a light emitting structure of a thick-walled member according to an embodiment of the present application;
FIG. 5 is a cross-sectional view A-A of FIG. 3;
FIG. 6 is a top view of a thick-walled member according to an embodiment of the present application;
FIG. 7 is a top view of a light exit unit of a thick-walled member according to an embodiment of the present application;
FIG. 8 is a top view of a thick-walled member according to a second embodiment of the present application;
fig. 9 is a top view of a light exit unit of a thick-walled member according to example two of the present application.
Reference symbol comparison table:
fig. 1-2:
the LED lamp comprises a thick-wall part 101, LED lamp beads 102, a reflecting surface 103 and a light-emitting surface 104;
fig. 3 to 9:
the thick-walled member 100:
light emitting surface 01: a direct incidence region 11, a diffusion region 12, a first diffusion region 121, a second diffusion region 122;
light emitting unit 02: a front reflection surface 21, a rear reflection surface 22, a secondary reflection surface 23, an incident reflection surface 231, an exit reflection surface 232, a first incident reflection surface 233, a second incident reflection surface 234, a first exit reflection surface 235, a second exit reflection surface 236, and a junction line 24;
Detailed Description
Embodiments of the present application are further described below with reference to the accompanying drawings.
It is easily understood that according to the technical solutions of the present application, those skilled in the art can substitute various structures and implementations without changing the spirit of the present application. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present application, and should not be construed as limiting or restricting the technical solutions of the present application in their entirety.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Throughout the description of the present application, it is to be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The foregoing is to be understood as belonging to the specific meanings in the present application as appropriate to the person of ordinary skill in the art.
The first embodiment is as follows:
as shown in fig. 3 to 4, the thick-walled member light-emitting structure in the embodiment of the present application includes a lamp holder (not shown in the drawings), and a thick-walled member 100 and a light-emitting member 200 mounted on the lamp holder, where at least one light-emitting unit 02 is disposed behind a light-emitting surface 01 of the thick-walled member 100, and at least one light-emitting member 200 is disposed below each light-emitting unit 02;
as shown in fig. 5, the light emitting unit 02 includes a front reflection surface 21, a rear reflection surface 22, and a secondary reflection surface 23, the front reflection surface 21 and the rear reflection surface 22 are disposed above the light emitting member 200 in a front-to-back symmetrical manner, and the secondary reflection surface 23 is located behind the rear reflection surface 22;
as shown in fig. 6, the light emitting surface 01 includes a direct area 11 and a diffusion area 12, the direct area 11 and the diffusion area 12 being adjacent in the width direction of the thick-walled member 100;
a part of the light emitting member 200 is reflected by the front reflection surface 21 and then emitted from the direct projection area 11, and another part of the light emitting member 200 is reflected by the rear reflection surface 22 and the secondary reflection surface 23 in sequence and then emitted from the diffusion area 12.
The thick-walled material 100 is generally provided in an irregular shape as a light-emitting member of a vehicle lamp according to the structure of the vehicle lamp, and when the thick-walled material light-emitting structure is mounted on a vehicle body, light emitted from the thick-walled material 100 is emitted in the front-rear direction of the vehicle. In the embodiment of the present application, when the light emitting structure of the thick-walled member is mounted on the vehicle body, the front-rear direction of the vehicle is defined as the front-rear direction Y of the thick-walled member 100, and the width direction of the vehicle is defined as the left-right direction (i.e., the width direction) X of the thick-walled member 100.
Specifically, the thick-wall member 100 is formed by integrally injection molding a PC (polycarbonate) material, the front reflective surface 21, the rear reflective surface 22, and the secondary reflective surface 23 are formed on the thick-wall member 100 by designing the shape of the thick-wall member 100, and light is reflected when propagating inside the thick-wall member 100 to the front reflective surface 21, the rear reflective surface 22, and the secondary reflective surface 23, thereby changing the propagation path of the light, so that the thick-wall member 100 does not need to be processed by other means such as aluminum plating, etc., by utilizing the propagation characteristics of the light in the PC material.
The light emitting surface 01 is the front surface of the thick-walled member 100, and light is emitted from the light emitting surface 01 from the rear to the front in the thick-walled member 100 when light is emitted. Each light emitting unit 02 illuminates a part of the area of the light emitting surface 01, the number of the light emitting units 02 is set according to the width of the thick-walled member 100, and in order to prevent the light emitting surface 01 from emitting light with a local dark area, when the thick-walled member 100 is provided with a plurality of light emitting units 02, as shown in fig. 6, the plurality of light emitting units 02 should be continuously arranged in the width direction X of the thick-walled member 100; also, it is necessary to ensure that the width of each light emitting unit 02 is equal so that the light emission of the light emitting surface 01 is uniform.
The light emitting member 200 generally adopts an LED lamp bead, as shown in fig. 4, the light emitting member 200 is mounted on a circuit board 300, the circuit board 300 is mounted below the thick-walled member 100, and each light emitting unit 02 corresponds to at least one light emitting member 200.
Preferably, only one light emitting member 200 is disposed below each light emitting unit 02, so as to ensure uniformity of intensity of light emitted into the light emitting unit 02 and avoid non-uniform light emission caused by dark areas between two light emitting members 200 and different light intensities of different light emitting members 200.
In the embodiment of the present application, the light emitting element 200 is disposed below the light emitting unit 02, and most of light rays of the light emitting element 200 can be emitted to the front reflecting surface 21 and the back reflecting surface 22, wherein the light rays emitted to the front reflecting surface 21 are emitted from the direct emitting area 11 on the light emitting surface 01, and the light rays emitted to the back reflecting surface 22 are emitted from the diffusion area 23 of the light emitting surface 01 after being reflected by the secondary reflecting surface 22, so that the utilization rate of the light rays is improved, and the irradiation area of the light emitting element 200 is enlarged, thereby the number of the light emitting element 200 can be reduced, and on the premise of ensuring the light emitting effect of the thick wall element 100, the interval between the light emitting elements in the prior art can only be 12mm to 18mm, the interval between the light emitting elements 200 in the present application can be enlarged to 24mm to 36mm, and half of the light emitting element 200 can be saved; meanwhile, the heat generation amount is reduced due to the reduction of the number of the luminous elements 200, and the heat dissipation of the luminous elements 200 is improved due to the expansion of the space between the luminous elements 200, so that the lamp bracket does not need to be provided with a heat dissipation sheet for heat dissipation, and the cost of the luminous structure of the thick-wall element is greatly reduced.
Further, as shown in fig. 5, a junction line 24 of the front reflection surface 21 and the rear reflection surface 22 is located above the light emitting member 200, the front reflection surface 21 extends forward and upward from the junction line 24, and the rear reflection surface 22 extends rearward and upward from the junction line 24;
the light of the light emitting member 200 is reflected by the front reflection surface 21 to form parallel light and emitted toward the front, and the light of the light emitting member 200 is reflected by the rear reflection surface 22 to form parallel light and emitted toward the rear.
Specifically, the connecting line 24 is located right above the light emitting member 200, so that the light emitted by the light emitting member 200 to the front reflecting surface 21 and the rear reflecting surface 22 is the same, and finally, the light emitting intensity of the direct projection area 11 and the light emitting intensity of the diffusion area 12 are the same. Since the front reflecting surface 21 and the rear reflecting surface 22 are disposed in front-rear symmetry with the connecting line 24 as the symmetry axis, the shapes, areas, and inclination angles of the front reflecting surface 21 and the rear reflecting surface 22 are the same.
Regarding the inclination angles of the front reflective surface 21 and the rear reflective surface 22, specifically, the incident angle of the light is determined according to the distance between the light emitting member 200 and the thick-walled member 101, and then the inclination angles of the front reflective surface 21 and the rear reflective surface 22 are determined according to the incident angle of the light, so that the light can form parallel light emitted in the front-rear direction Y of the thick-walled member 100 after being reflected by the front reflective surface 21 and the rear reflective surface 22.
Further, as shown in fig. 6, the secondary reflecting surface 23 includes an incident reflecting surface 231 and an exit reflecting surface 232, the incident reflecting surface 231 is located in the region R directly behind the rear reflecting surface 22 and is completely blocked by the rear reflecting surface 22, the exit reflecting surface 232 is located on one side of the incident reflecting surface 231, and the exit reflecting surface 232 at least partially protrudes out of the region R directly behind the rear reflecting surface 22;
the light reflected by the rear reflection surface 22 is reflected by the incident reflection surface 231 and then emitted to the exit reflection surface 232, and the light is reflected by the exit reflection surface 232 and then emitted from the diffusion region 12.
Specifically, the incident reflection surface 231 and the exit reflection surface 232 have an inverted V shape, and change the direction of the light emitted from the rear reflection surface 22 to diffuse the light to a diffusion area adjacent to the direct projection area 11.
The incident reflection surface 231 is located in a region R right behind the rear reflection surface 22 and completely shielded by the rear reflection surface 22, and the whole incident reflection surface 231 can be irradiated by light, so that no dark region is formed between the direct projection region 11 and the diffusion region 12.
Further, as shown in fig. 7, the secondary reflecting surface 23 is provided on the rear surface of the thick-walled member 101, the angle between the incident reflecting surface 231 and the front-rear direction Y of the thick-walled member 100 is less than 50.82 °, and the exit reflecting surface 232 and the incident reflecting surface 231 are provided in bilateral symmetry.
Specifically, when a light ray propagates through the thick-walled member 100 to the surface of the thick-walled member 100, the light ray is refracted and reflected, the reflectivity and refractive index of the light ray are related to the material and the incident angle of the light ray, and when the incident angle of the light ray on the surface of the material is larger than a certain angle, the light ray is only reflected, but not refracted.
In the embodiment of the present application, the thick-walled member 100 is made of PC material, and calculated according to fresnel's formula, when the incident angle of the light is greater than 39.18 °, the light is only reflected, and is not refracted. As shown in fig. 7, the light reflected by the rear reflecting surface 22 is directed to the incident reflecting surface 231 in the front-rear direction Y of the thick-walled material 100. According to the above calculation results, when the incident angle a is greater than 39.18 °, the light is only reflected, and therefore, the included angle b between the incident reflection surface 231 and the front-back direction Y of the thick-walled member 100 is adjusted to be less than 50.82 °, so that the light can be prevented from being emitted and refracted, and the light utilization rate can be improved. In the embodiment of the present application, the angle b between the incident reflection surface 231 and the front-rear direction Y of the thick-walled member 100 is set to 45 °.
The exit reflection surface 232 and the incident reflection surface 231 are arranged in bilateral symmetry, so that light rays irradiated from front to back along the front-back direction Y of the thick-walled member 100 can be ensured to be emitted from back to front along the front-back direction Y of the thick-walled member 100 after being reflected twice by the incident reflection surface 231 and the exit reflection surface 232.
In addition, since the light intensity of the light emitting member 200 emitted to the front reflection surface 21 and the rear reflection surface 22 is the same, and the light emitted to the rear reflection surface 22 is reflected by the rear reflection surface 22, the incident reflection surface 231 and the exit reflection surface 232, no loss of the light intensity is caused. Therefore, it is necessary to set the width L1 of the direct area 11 equal to the width L2 of the diffusion area 12, so that the light emission intensities of the direct area 11 and the diffusion area 12 are kept the same, and uniform light emission of the light emitting surface 01 of the thick-walled material 100 is achieved.
The light-emitting structure of the thick-wall part in the embodiment of the application has the following advantages:
the luminous piece sets up in the top of preceding plane of reflection and back plane of reflection, has reduced the loss of light intensity, has improved the utilization ratio of light.
The secondary reflecting surface is arranged, and the angles of the incident reflecting surface and the emergent reflecting surface of the secondary reflecting surface are adjusted, so that light rays emitted to the rear reflecting surface can be emitted from the diffusion area after being reflected for three times without damage, and the light emitting area of the light emitting piece is expanded from the direct incidence area to the diffusion area, thereby reducing the number of the light emitting pieces and lowering the cost.
By adjusting the widths of the direct injection area and the diffusion area, the uniform light emission of the light emitting surface of the thick-walled part is ensured.
Example two:
the light emitting structure of the thick-walled member in the embodiment of the present application is the same as the first embodiment except for the secondary reflective surface in the thick-walled member 100, and only the structure of the secondary reflective surface and the light propagation path will be described below, and the rest of the structure will be referred to the first embodiment.
As shown in fig. 8 and 9, the secondary reflecting surface 23 includes an incident reflecting surface and an exit reflecting surface, the incident reflecting surface is located in the region R right behind the rear reflecting surface 22 and completely shielded by the rear reflecting surface 22, and the whole incident reflecting surface can be irradiated by light, so as to ensure that there is no dark space between the direct irradiating region 11 and the diffusion region.
Specifically, the incident reflection surface includes a first incident reflection surface 233 and a second incident reflection surface 234 which are arranged bilaterally symmetrically, and the exit reflection surface includes a first exit reflection surface 235 and a second exit reflection surface 236;
the first exit reflection surface 235 is provided on the side of the first entrance reflection surface 233 opposite to the second entrance reflection surface 234, and the second exit reflection surface 236 is provided on the side of the second entrance reflection surface 234 opposite to the first entrance reflection surface 233.
As can be seen, the first incident reflection surface 233 and the second incident reflection surface 234 form a V-shaped incident reflection surface located in the region R directly behind the rear reflection surface 22, and the exit reflection surfaces are respectively connected to both sides of the incident reflection surface by a first exit reflection surface 235 and a second exit reflection surface 236, so that the secondary reflection surface 23 is zigzag.
The junction between the first incident reflection surface 233 and the second incident reflection surface 234 is located on the central axis of the region R directly behind the rear reflection surface 22, so that the intensity of light applied to the first incident reflection surface 233 and the second incident reflection surface 234 is the same.
Further, the diffusion region includes a first diffusion region 121 and a second diffusion region 122;
the light reflected by the rear reflection surface 22 is reflected by the first incident reflection surface 233 and the first exit reflection surface 235 and then emitted from the first diffusion region 121;
the light reflected by the rear reflection surface 22 is reflected by the second incident reflection surface 234 and the second incident reflection surface 236 and then exits from the second diffusion region 122.
In the embodiment of the present application, the diffusion area is two partial areas, and the first diffusion area 121 and the second diffusion area 122 are respectively located at two sides of the direct projection area 11, so that the front reflection surface 21 and the rear reflection surface 22 can be arranged in the middle area of each light emitting unit 02, the process requirement for injection molding of the thick-walled part 100 is reduced, and the cost is reduced to a certain extent.
As shown in fig. 9, the first exit reflection surface 235 and the first entrance reflection surface 233 are arranged bilaterally symmetrically, the angle c1 between the first entrance reflection surface 233 and the front-rear direction Y of the thick-walled material 100 is less than 50.82 °, similarly, the second exit reflection surface 236 and the second entrance reflection surface 234 are arranged bilaterally symmetrically, and the angle c2 between the second entrance reflection surface 234 and the front-rear direction Y of the thick-walled material 100 is less than 50.82 °. The incident angle d1 of the light to the first incident reflection surface 233 and the incident angle d2 of the second incident reflection surface 234 are larger than 39.18 °, so that the light is prevented from being refracted, and the light utilization rate is improved. In the embodiment of the present application, the angle c1 between the first incident reflection surface 233 and the front-rear direction Y of the thick-walled member 100 is set to 45 °, and the angle c2 between the second incident reflection surface 234 and the front-rear direction Y of the thick-walled member 100 is set to 45 °.
Since the light intensity irradiated to the first incident reflection surface 233 and the second incident reflection surface 234 is the same and the light can be totally reflected on the first incident reflection surface 233 and the first exit reflection surface 235, the second incident reflection surface 234 and the second exit reflection surface 236, no light intensity loss occurs. Therefore, in order to ensure uniform light emission on the light emitting surface 01 of the thick-walled member 100, it is necessary to set the width L3 of the first diffusion region 121 equal to the width L4 of the second diffusion region 122, and the sum of the widths of the first diffusion region 121 and the second diffusion region 122 equal to the width L5 of the direct projection region 11.
The light-emitting structure of the thick-wall part in the embodiment of the application has the following advantages:
the luminous piece sets up in the top of preceding plane of reflection and back plane of reflection, has reduced the loss of light intensity, has improved the utilization ratio of light.
The secondary reflecting surface is arranged, and the angles of the incident reflecting surface and the emergent reflecting surface of the secondary reflecting surface are adjusted, so that light rays emitted to the rear reflecting surface can be emitted from the diffusion area after being reflected for three times without damage, and the light emitting area of the light emitting piece is expanded from the direct incidence area to the diffusion area, thereby reducing the number of the light emitting pieces and lowering the cost.
The uniform light emitting of the light emitting surface of the thick-walled part is ensured by adjusting the widths of the direct injection area and the diffusion area;
the front reflecting surface and the rear reflecting surface are arranged in the middle area of the light emitting unit, so that the process requirement on injection molding of the thick-wall part is reduced, and the cost can be further reduced.
What has been described above is merely the principles and preferred embodiments of the present application. It should be noted that, for those skilled in the art, the embodiments obtained by appropriately combining the technical solutions respectively disclosed in the different embodiments are also included in the technical scope of the present invention, and several other modifications may be made on the basis of the principle of the present application and should be regarded as the protective scope of the present application.
Claims (10)
1. The light-emitting structure of the thick-wall part is characterized by comprising a lamp holder, and the thick-wall part (100) and the light-emitting part (200) which are arranged on the lamp holder, wherein at least one light-emitting unit (02) is arranged behind the light-emitting surface (01) of the thick-wall part (100), and at least one light-emitting part (200) is arranged below each light-emitting unit (02);
the light emitting unit (02) comprises a front reflecting surface (21), a rear reflecting surface (22) and a secondary reflecting surface (23), the front reflecting surface (21) and the rear reflecting surface (22) are symmetrically arranged above the light emitting member (200) in a front-back manner, and the secondary reflecting surface (23) is positioned behind the rear reflecting surface (22);
the luminous surface (01) comprises a direct area (11) and a diffusion area (12), the direct area (11) and the diffusion area (12) are adjacent in the width direction of the thick-walled part (100);
and one part of light of the luminous piece (200) is reflected by the front reflecting surface (21) and then emitted from the direct emitting area (11), and the other part of light of the luminous piece (200) is reflected by the rear reflecting surface (22) and the secondary reflecting surface (23) in sequence and then emitted from the diffusion area (12).
2. The thick-walled member light-emitting structure according to claim 1, wherein a junction line (24) of the front reflecting surface (21) and the rear reflecting surface (22) is located above the light-emitting member (200), the front reflecting surface (21) extends from the junction line (24) toward the front upper direction, and the rear reflecting surface (22) extends from the junction line (24) toward the rear upper direction;
the light of the light emitting piece (200) is reflected by the front reflecting surface (21) to form parallel light and is emitted towards the front, and the light of the light emitting piece (200) is reflected by the rear reflecting surface (22) to form parallel light and is emitted towards the rear.
3. The thick-walled component light emitting structure according to claim 1, wherein the secondary reflecting surface (23) comprises an incident reflecting surface (231) and an exit reflecting surface (232), the incident reflecting surface (231) is located at a region right behind the rear reflecting surface (22) and is completely blocked by the rear reflecting surface (22), the exit reflecting surface (232) is located at one side of the incident reflecting surface (231), and the exit reflecting surface (232) at least partially protrudes out of the region right behind the rear reflecting surface (22);
the light reflected by the rear reflecting surface (22) is reflected by the incident reflecting surface (231) and then emitted to the emergent reflecting surface (232), and the light is reflected by the emergent reflecting surface (232) and then emitted from the diffusion area (12).
4. The thick-walled component light-emitting structure according to claim 3, wherein the secondary reflecting surface (23) is provided on a rear surface of the thick-walled component (100), and the exit reflecting surface (232) is provided in bilateral symmetry with the entrance reflecting surface (231).
5. Thick wall element light emitting structure according to claim 4, characterized in that the width of the direct area (11) is equal to the width of the diffusive area (12).
6. The thick-walled member light-emitting structure according to claim 3, wherein the incident reflective surface (231) comprises a first incident reflective surface (233) and a second incident reflective surface (234) which are arranged in bilateral symmetry, and the exit reflective surface (232) comprises a first exit reflective surface (235) and a second exit reflective surface (236);
the first exit reflection surface (235) is provided on the side of the first entrance reflection surface (233) opposite to the second entrance reflection surface (234), and the second exit reflection surface (236) is provided on the side of the second entrance reflection surface (234) opposite to the first entrance reflection surface (233).
7. The thick-walled component light emitting structure according to claim 6, wherein the diffusion region (12) comprises a first diffusion region (121) and a second diffusion region (122);
the light reflected by the rear reflecting surface (22) is reflected by the first incident reflecting surface (233) and the first emergent reflecting surface (235) and then emitted from the first diffusion area (121);
the light reflected by the rear reflection surface (22) is reflected by the second incident reflection surface (234) and the second incident reflection surface (236) and then emitted from the second diffusion region (122).
8. The thick-walled component light emitting structure according to claim 7, wherein the width of the first diffusion region (121) is equal to the width of the second diffusion region (122).
9. The thick-walled member light-emitting structure according to any one of claims 1 to 8, wherein the light-emitting units (02) are arranged continuously in a width direction of the thick-walled member (100).
10. The thick-walled member light-emitting structure according to any one of claims 1 to 8, wherein the thick-walled member (100) is integrally injection-molded from a polycarbonate material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609255.8A CN113324228A (en) | 2021-06-01 | 2021-06-01 | Light-emitting structure of thick-wall part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110609255.8A CN113324228A (en) | 2021-06-01 | 2021-06-01 | Light-emitting structure of thick-wall part |
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| CN113324228A true CN113324228A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110609255.8A Pending CN113324228A (en) | 2021-06-01 | 2021-06-01 | Light-emitting structure of thick-wall part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109306A1 (en) * | 2021-12-13 | 2023-06-22 | 常州星宇车灯股份有限公司 | Thick-wall member structure, light-emitting device, and light-emitting method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893963A (en) * | 2017-11-15 | 2018-04-10 | 上海小糸车灯有限公司 | Lamps apparatus for vehicle optical system |
| CN207555467U (en) * | 2017-11-15 | 2018-06-29 | 上海小糸车灯有限公司 | A kind of lamps apparatus for vehicle optical system |
| CN111486409A (en) * | 2020-05-13 | 2020-08-04 | 海纳川海拉(天津)车灯有限公司 | High light efficiency light guide structure and thick-walled part applying same |
| CN212029399U (en) * | 2020-05-13 | 2020-11-27 | 海纳川海拉(天津)车灯有限公司 | High light efficiency light guide structure and thick-walled part applying same |
-
2021
- 2021-06-01 CN CN202110609255.8A patent/CN113324228A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893963A (en) * | 2017-11-15 | 2018-04-10 | 上海小糸车灯有限公司 | Lamps apparatus for vehicle optical system |
| CN207555467U (en) * | 2017-11-15 | 2018-06-29 | 上海小糸车灯有限公司 | A kind of lamps apparatus for vehicle optical system |
| CN111486409A (en) * | 2020-05-13 | 2020-08-04 | 海纳川海拉(天津)车灯有限公司 | High light efficiency light guide structure and thick-walled part applying same |
| CN212029399U (en) * | 2020-05-13 | 2020-11-27 | 海纳川海拉(天津)车灯有限公司 | High light efficiency light guide structure and thick-walled part applying same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023109306A1 (en) * | 2021-12-13 | 2023-06-22 | 常州星宇车灯股份有限公司 | Thick-wall member structure, light-emitting device, and light-emitting method |
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Application publication date: 20210831 |
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