CN109519864B - Reflective half cup for automobile headlamp system - Google Patents
Reflective half cup for automobile headlamp system Download PDFInfo
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- CN109519864B CN109519864B CN201811438361.9A CN201811438361A CN109519864B CN 109519864 B CN109519864 B CN 109519864B CN 201811438361 A CN201811438361 A CN 201811438361A CN 109519864 B CN109519864 B CN 109519864B
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- curved surface
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- reflective
- cup body
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- 230000007704 transition Effects 0.000 claims abstract description 8
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 230000001795 light effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
- F21S41/32—Optical layout thereof
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a reflective half cup for an automobile headlamp system. The inner side surface of the cup body of the reflective half cup is a reflective surface matched with a light source, the reflective surface comprises a first reflective curved surface and a second reflective curved surface, the first reflective curved surface is close to a cup opening, and the second reflective curved surface is close to the bottom of the cup; the first reflecting curved surface comprises a curved surface section A1, a curved surface section B and a curved surface section A2 which are sequentially formed along the axial direction perpendicular to the cup body and smoothly transition, and the second reflecting curved surface comprises a curved surface section C1, a curved surface section D and a curved surface section C2 which are sequentially formed along the axial direction perpendicular to the cup body and smoothly transition; the curvature of the curved surface section A1 and the curvature of the curved surface section A2 are alpha 1, the curvature of the curved surface section B is alpha 2, the curvature of the curved surface section C1 and the curvature of the curved surface section C2 are alpha 3, and the curvature of the curved surface section D is alpha 4, wherein alpha 2< alpha 1< alpha 4< alpha 3. The system effectively increases the light width of the front headlamp of the automobile, and the light illuminance is also greatly improved.
Description
Technical Field
The invention belongs to the technical field of car lamps, and particularly relates to a reflective half cup for an automobile headlamp system.
Background
Patent document CN205245025U discloses a high-efficiency LED single-chip high-low beam integrated automotive headlamp optical system, which has the following problems in the actual use process: the width of the emergent light is narrower, namely, the irradiation range of an included angle of 60 degrees can be formed, so that an illumination blind area exists when an automobile turns, and potential safety hazards are brought to night driving; in addition, the height of the emergent light is low, so that a driver cannot easily see the information of the guideboard positioned at the high position beside the road.
Disclosure of Invention
In order to solve the technical problems, the invention provides a reflective half cup for an automobile headlamp system. After the reflecting half cup is matched with a light source for use, the light width of the front headlamp of the automobile is effectively increased, and the light illuminance is also greatly improved.
In order to achieve the purpose of the invention, the invention adopts the following technical scheme:
the inner side surface of a cup body of the reflective half cup is a reflective surface matched with a light source, the reflective surface comprises a first reflective curved surface and a second reflective curved surface, the first reflective curved surface is close to a cup opening, and the second reflective curved surface is close to a cup bottom; the first reflecting curved surface comprises a curved surface section A1, a curved surface section B and a curved surface section A2 which are sequentially formed along the axial direction perpendicular to the cup body and smoothly transition, and the second reflecting curved surface comprises a curved surface section C1, a curved surface section D and a curved surface section C2 which are sequentially formed along the axial direction perpendicular to the cup body and smoothly transition; the curved surface section A1 and the curved surface section A2 are symmetrically arranged on two sides of the curved surface section B, the curvature of the curved surface section B is alpha 1, the curvature of the curved surface section C1 and the curved surface section C2 are symmetrically arranged on two sides of the curved surface section D, the curvature of the curved surface section D is alpha 3, and the curvature of the curved surface section D is alpha 4, wherein alpha 2< alpha 1< alpha 4< alpha 3.
The technical scheme is as follows: the ratio of the orthographic projection length of the curved surface section B in the radial direction of the cup body to the orthographic projection length of the first reflecting curved surface in the radial direction of the cup body is equal to the ratio of the orthographic projection length of the curved surface section D in the radial direction of the cup body to the orthographic projection length of the second reflecting curved surface in the radial direction of the cup body.
The technical scheme is as follows: the orthographic projection length of the reflecting surface in the cup body in the axial direction of the cup body is L 1 Wherein the orthographic projection length of the first reflecting curved surface in the axial direction of the cup body is 5L 1 And/7, the orthographic projection length of the second reflecting curved surface in the axial direction of the cup body is 2L 1 /7。
The technical scheme is as follows: the first reflecting curved surface is in the radial direction of the cup bodyLength of orthographic projection is L 2 Orthographic projection lengths of the curved surface section A1 and the curved surface section A2 on the radial direction of the cup body are respectively 3.5L 2 16, the orthographic projection length of the curved surface section B in the radial direction of the cup body is 9L 2 /16。
The technical scheme is as follows: the cup mouth of the reflective half cup is provided with an arc notch for increasing the strength of the cup body.
The invention has the beneficial effects that:
(1) According to the invention, under the precondition that the light type meets the regulation requirement, the reflecting surface in the cup body is set to be a curved surface section A1, a curved surface section B, a curved surface section A2, a curved surface section C1, a curved surface section D and a curved surface section C2, and the light rays emitted by the headlight of the automobile are wider through the arrangement of the curvature, and the irradiation range with the width of an included angle of 90 degrees can be formed, so that the problem that an illumination blind area exists when the automobile turns is solved, and the driving safety at night is greatly improved; meanwhile, the invention can make the emergent ray of the headlight of the automobile higher, namely, the headlight can irradiate to the higher position of the road, thereby facilitating the driver to see the guideboard information and the like positioned at the high position of the road, further ensuring the driving safety and improving the driving comfort.
(2) According to the invention, the proportion of the first reflecting curved surface to the second reflecting curved surface, the proportion of the curved surface section A1 to the curved surface section B to the curved surface section A2, the proportion of the curved surface section C1 to the curved surface section D to the curved surface section C2 are optimally selected, the width and the height of emergent light rays are improved, and meanwhile, the illuminance of the emergent light rays of the headlight of the automobile is further improved.
(3) The arc notch at the cup mouth of the reflective half cup has the effect of increasing the strength of the cup body.
Drawings
FIG. 1 is a schematic view of the inner reflective surface of a reflective half cup.
Fig. 2 is a schematic view of a reflective half-cup explosion structure (circular lens) for an automotive headlamp system.
Fig. 3 is a schematic view of the structure (circular lens) of the reflective half-cup for the headlamp system of the automobile after installation.
Fig. 4 is a schematic diagram of a reflective half-cup explosion structure (square lens) for an automotive headlamp system.
Fig. 5 is a schematic view of the structure of a reflective half-cup for a headlamp system of an automobile (square lens).
Fig. 6 is a schematic diagram of mounting the first light emitting chip and the second light emitting chip.
Fig. 7 is a schematic diagram of the principle of light pattern formed by emergent light rays according to the present invention.
Fig. 8 is a schematic view of a conventional automotive headlamp system formed by a reflective half-cup.
Fig. 9 is a schematic view of the light pattern formed by the reflective half-cup for the headlamp system of the present invention.
The meaning of the symbols in the drawings is as follows:
10-reflecting half-cups; 11-a first reflective curved surface; 111-curved surface sections A1 and 112-curved surface section B; 113-curved section A2; 12-a second reflective curved surface; 121-curved section C1; 122-curved section D; 123-curved section C2; 13-notch; 20-a heat sink; 31-a first light emitting chip; 32-a second light emitting chip; 40-lens; 50-sleeve; 60-an electromagnetic valve light blocking mechanism; 70-a fan; 81-passing light aperture; 82-high beam aperture; 83-light supplementing aperture.
Detailed Description
The technical scheme of the invention is more specifically described below by combining examples:
the invention comprises a lens 40, a light emitting chip and a reflective half-cup 10 matched with a light source, as shown in fig. 1: the inner side surface of the cup body of the reflective half cup 10 is a reflective surface matched with a light source, the reflective surface comprises a first reflective curved surface 11 and a second reflective curved surface 12, wherein the first reflective curved surface 11 is close to a cup mouth, and the second reflective curved surface 12 is close to the cup bottom; the first reflecting curved surface 11 comprises a curved surface section A1, a curved surface section B and a curved surface section A2 which are sequentially formed along the axial direction perpendicular to the cup body and are in smooth transition, and the second reflecting curved surface 12 comprises a curved surface section C1, a curved surface section D and a curved surface section C2 which are sequentially formed along the axial direction perpendicular to the cup body and are in smooth transition; the curved surface section A1 and the curved surface section A2 are symmetrically arranged on two sides of the curved surface section B, the curvature of the curved surface section B is alpha 1, the curvature of the curved surface section C1 and the curved surface section C2 are symmetrically arranged on two sides of the curved surface section D, the curvature of the curved surface section D is alpha 3, and the curvature of the curved surface section D is alpha 4, wherein alpha 2< alpha 1< alpha 4< alpha 3.
According to the invention, under the precondition that the light type meets the regulation requirement, the reflecting surface in the cup body is set to be a curved surface section A1, a curved surface section B, a curved surface section A2, a curved surface section C1, a curved surface section D and a curved surface section C2, and the light rays emitted by the headlight of the automobile are wider through the arrangement of the curvature, and the irradiation range with the width of an included angle of 90 degrees can be formed, so that the problem that an illumination blind area exists when the automobile turns is solved, and the driving safety at night is greatly improved; meanwhile, the invention can make the emergent ray of the headlight of the automobile higher, namely, the headlight can irradiate to the higher position of the road, thereby facilitating the driver to see the guideboard information and the like positioned at the high position of the road, further ensuring the driving safety and improving the driving comfort.
The ratio of the orthographic projection length of the curved surface section B in the cup radial direction to the orthographic projection length of the first reflecting curved surface 11 in the cup radial direction is equal to the ratio of the orthographic projection length of the curved surface section D122 in the cup radial direction to the orthographic projection length of the second reflecting curved surface 12 in the cup radial direction.
The orthographic projection length of the reflecting surface in the cup body in the axial direction of the cup body is L 1 Wherein the orthographic projection length of the first reflecting curved surface 11 in the axial direction of the cup body is 5L 1 And/7, the orthographic projection length of the second reflecting curved surface 12 in the axial direction of the cup body is 2L 1 /7。
The orthographic projection length of the first reflecting curved surface 11 in the radial direction of the cup body is L 2 Orthographic projection lengths of the curved surface section A1 and the curved surface section A2113 in the radial direction of the cup body are respectively 3.5L 2 16, the orthographic projection length of the curved surface section B121 in the radial direction of the cup body is 9L 2 /16. The ratio of the orthographic projection length of the second reflective curved surface 12 in the radial direction of the cup body to the orthographic projection lengths of the curved surface sections C1121 and C2123 in the radial direction of the cup body is 3.5/16, and the ratio of the orthographic projection length of the second reflective curved surface 12 in the radial direction of the cup body to the orthographic projection length of the curved surface section D122 in the radial direction of the cup body is 9/16.
According to the invention, the proportion of the first reflecting curved surface 11 to the second reflecting curved surface 12, the proportion of the curved surface section A1 to the curved surface section B to the curved surface section A2 and the proportion of the curved surface section C1 to the curved surface section D to the curved surface section C2 are optimally selected, so that the width and the height of emergent light rays are improved, and meanwhile, the illuminance of the emergent light rays of the front headlamp of the automobile is further improved. The light effect of the light source can be utilized by more than 82% by the reflective half cup.
In order to strengthen the strength of the cup body, the invention is provided with the arc notch at the cup mouth of the reflective half cup, and the arc notch plays a role of a reinforcing rib.
As shown in fig. 2, 3, 4, 5: the system also comprises a radiator 20 and a fan 70 arranged at the bottom of the radiator 20, wherein a positioning table 21 for mounting the light-emitting chip is arranged at the upper part of the radiator 20, and a fixing table 22 for covering the light-reflecting half cup 10 above the light-emitting chip is arranged at the edge of the positioning table 21; the positioning table 21 comprises a horizontal positioning section 211 near the cup bottom for mounting the first light emitting chip 31 and an inclined positioning section 212 near the cup mouth for mounting the second light emitting chip 32, wherein the gradient of the inclined positioning section 212 is 30 degrees.
As shown in fig. 6: distance L between the first light-emitting chip 31 and the cup opening 3 The distance between the second light emitting chip 32 and the cup opening is L 4 The orthographic projection length of the reflecting surface in the cup body in the axial direction of the cup body is L 1 Wherein L is 3 And L is equal to 1 Has a ratio of 0.8 to 0.9, L 4 And L is equal to 1 The ratio of (2) is 0.2-0.3.
The first light emitting chip 31 of the present invention can form far and near light, the second light emitting chip 32 has a light supplementing function, that is, on the basis of the emergent light formed by the first light emitting chip 31, the height of the emergent light can be effectively increased by matching with the reflection effect of the reflective half cup 10, the wider sight of a driver in the night driving process is ensured, and the installation positions of the first light emitting chip 31 and the second light emitting chip 32 also have a critical influence on the light type effect formed by the emergent light, so special attention is required.
The radiator 20 has a heat radiation function on the first light emitting chip 31 and the second light emitting chip 32, is matched with the fan 70 for use, has better heat radiation effect, and is beneficial to ensuring the service lives of the first light emitting chip 31 and the second light emitting chip 32.
The system further comprises a sleeve 50, the lens 40 is clamped at one end of the sleeve 50, the radiator 20 is fixed at the other end of the sleeve 50, and the radiator 20 is connected with a solenoid valve light blocking mechanism 60 for adjusting the distance light and the near light at a position close to the front of the car lamp through screws. The working process of the invention comprises the following steps: the first light-emitting chip 31 and the second light-emitting chip 32 emit light, the light is concentrated through the reflective half cup 10, then the light enters the sleeve 50 through a channel formed by the cup opening of the reflective half cup 10 and the positioning table 21, the light is concentrated again by the lens 40 for being used for front illumination of an automobile when being emitted, the electromagnetic valve light blocking mechanism 60 can form a clear cut-off line, and the electromagnetic valve light blocking mechanism 60 is operated according to driving needs to realize adjustment of far and near light. The light pattern of the emergent ray of the present invention is shown in fig. 7, the light emitted from the first light emitting chip 31 is reflected by the reflective half-cup 10 to form a low beam aperture 81 and a high beam aperture 82, and the light emitted from the second light emitting chip 32 is reflected by the reflective half-cup 10 to form a light compensating aperture 83.
Claims (2)
1. The utility model provides a half cup of reflection of light for car headlamp system which characterized in that: the inner side surface of the cup body of the reflective half cup (10) is a reflective surface matched with a light source, the reflective surface comprises a first reflective curved surface (11) and a second reflective curved surface (12), wherein the first reflective curved surface (11) is close to the cup mouth, and the second reflective curved surface (12) is close to the cup bottom; the first reflecting curved surface (11) comprises a curved surface section A1 (111), a curved surface section B (112) and a curved surface section A2 (113) which are sequentially formed along the axial direction perpendicular to the cup body and are in smooth transition, and the second reflecting curved surface (12) comprises a curved surface section C1 (121), a curved surface section D (122) and a curved surface section C2 (123) which are sequentially formed along the axial direction perpendicular to the cup body and are in smooth transition; the curved surface section A1 (111) and the curved surface section A2 (113) are symmetrically arranged at two sides of the curved surface section B (112) and have the same curvature alpha 1, the curvature of the curved surface section B (112) is alpha 2, the curved surface section C1 (121) and the curved surface section C2 (123) are symmetrically arranged at two sides of the curved surface section D (122) and have the same curvature alpha 3, and the curvature of the curved surface section D (122) is alpha 4, wherein alpha 2< alpha 1< alpha 4< alpha 3;
the ratio of the orthographic projection length of the curved surface section B (112) in the radial direction of the cup body to the orthographic projection length of the first reflecting curved surface (11) in the radial direction of the cup body is equal to the ratio of the orthographic projection length of the curved surface section D (122) in the radial direction of the cup body to the orthographic projection length of the second reflecting curved surface (12) in the radial direction of the cup body;
the orthographic projection length of the reflecting surface in the cup body in the axial direction of the cup body is L 1 Wherein the orthographic projection length of the first reflecting curved surface (11) in the axial direction of the cup body is 5L 1 And/7, the orthographic projection length of the second reflecting curved surface (12) in the axial direction of the cup body is 2L 1 /7；
The orthographic projection length of the first reflecting curved surface (11) in the radial direction of the cup body is L 2 Orthographic projection lengths of the curved surface section A1 (111) and the curved surface section A2 (113) in the radial direction of the cup body are respectively 3.5L 2 16, the orthographic projection length of the curved surface section B (112) in the radial direction of the cup body is 9L 2 /16。
2. A reflective half-cup for an automotive headlamp system as defined in claim 1, wherein: an arc-shaped notch (13) for increasing the strength of the cup body is arranged at the cup opening of the reflective half cup (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438361.9A CN109519864B (en) | 2018-11-28 | 2018-11-28 | Reflective half cup for automobile headlamp system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811438361.9A CN109519864B (en) | 2018-11-28 | 2018-11-28 | Reflective half cup for automobile headlamp system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109519864A CN109519864A (en) | 2019-03-26 |
| CN109519864B true CN109519864B (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811438361.9A Active CN109519864B (en) | 2018-11-28 | 2018-11-28 | Reflective half cup for automobile headlamp system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260259B (en) * | 2019-07-10 | 2024-04-16 | 浙江比肯科技有限公司 | Split type reflecting cup adopting single light source |
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|---|---|
| CN109519864A (en) | 2019-03-26 |
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Effective date of registration: 20240109 Address after: 231199 xiaolinchang dormitory, Changshou neighborhood committee, Shuihu Town, Changfeng County, Hefei City, Anhui Province Applicant after: Zhao Liding Address before: Zone 1-3, Building 4, Dingxin Industrial Plaza, Airport Industrial Park, Shushan Modern Industrial Park, Shouxian County, Huainan City, Anhui Province, 232200 Applicant before: ANHUI KANGWO CAR LIGHT TECHNOLOGY Co.,Ltd. |
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