CN208397972U - A kind of automobile headlamp LED light-source structure and automobile front - Google Patents
A kind of automobile headlamp LED light-source structure and automobile front Download PDFInfo
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- CN208397972U CN208397972U CN201821119977.5U CN201821119977U CN208397972U CN 208397972 U CN208397972 U CN 208397972U CN 201821119977 U CN201821119977 U CN 201821119977U CN 208397972 U CN208397972 U CN 208397972U
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- led chip
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- light
- source structure
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- 229910052736 halogen Inorganic materials 0.000 claims abstract description 23
- 150000002367 halogens Chemical class 0.000 claims abstract description 23
- 229910017083 AlN Inorganic materials 0.000 claims description 3
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000004907 flux Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model relates to automobile lamp technical fields, disclose a kind of automobile headlamp LED light-source structure and automobile front, the first LED chip and the second LED chip including reflector and in the reflector, first LED chip is overlapped setting with the focus point of the reflector, and second LED chip deviates the focus point setting of the reflector.The reduction of the utility model light-source brightness is less, consistent with former automotive halogen lamp light distribution, can be realized the direct replacement to former halogen lamp, and meet light distribution laws and regulations requirement.
Description
Technical field
The utility model relates to automobile lamp technical field, more particularly to a kind of automobile headlamp LED light-source structure and
Automobile front.
Background technique
Automobile front mostly uses greatly halogen light source at present, and this kind of light source has the problems such as energy consumption is high, service life is short.
After LED light source occurs, industry circle always tries to substitute existing halogen light source using LED light source, to save automobile storage battery
Energy consumption.
But current headlight for vehicles LED replacement light source, LED core chip size is numerous, and deposits with former halogen light source filament size
In relatively large deviation, it be easy to cause auto lamp with light distortion, cannot achieve direct replacement；And current headlight for vehicles LED replacement light source,
LED chip mostly uses greatly two sides to be arranged symmetrically (as shown in Figure 1) or three faces, tetragonal symmetry arrangement, distance between multiple LED chips
It is larger, it causes brightness to reduce, be easy to cause auto lamp with light distortion, cannot achieve direct replacement, and examination of car can not be passed through
When car light match optical test.
Utility model content
(1) technical problems to be solved
The utility model aims to solve at least one of technical problems existing in the prior art or related technologies.
The purpose of the utility model is to provide a kind of automobile headlamp LED light-source structures, to solve existing LED replacement light source
The problem of be easy to causeing auto lamp to match light distortion, cannot achieve direct replacement.
(2) technical solution
In order to solve the above-mentioned technical problem, the utility model provides a kind of automobile headlamp LED light-source structure, including reflective
Cup and the first LED chip and the second LED chip in the reflector, first LED chip and the reflector
Focus point is overlapped setting, and second LED chip deviates the focus point setting of the reflector.
Wherein, the distance that second LED chip deviates the focus point of the reflector is no more than 1mm.
Wherein, first LED chip and the second LED chip are set in the reflector vertically.
Wherein, first LED chip is in the left side of second LED chip.
Wherein, first LED chip is in the right side of second LED chip.
Wherein, paraboloid is set as in the reflector, the paraboloidal focus forms the described poly- of the reflector
Focus.
Wherein, the outer dimension of first LED chip and the second LED chip is set as the size with halogen light source filament
It is identical.
Wherein, first LED chip and the second LED chip upside-down mounting and die bond is on aluminium nitride substrate.
Wherein, the outer surface of first LED chip and the second LED chip is covered with fluorescent powder.
The utility model also provides a kind of automobile front comprising automobile headlamp LED light-source structure described above.
(3) beneficial effect
Compared with prior art, the utility model has the advantage that
A kind of automobile headlamp LED light-source structure provided by the utility model, be arranged in reflector the first LED chip and
Second LED chip, first LED chip are overlapped setting with the focus point of the reflector, and second LED chip deviates institute
State the focus point setting of reflector；Using such design, it is less can to guarantee that light-source brightness reduces, with former automotive halogen lamp light distribution
Unanimously, hot spot brightness center is amesiality (left side drive to the right, the right side is driven to the left), and light distribution meets laws and regulations requirement, can
Automotive halogen lamp is directly replaced in realization, and car light when can pass through examination of car matches optical test.
Detailed description of the invention
Fig. 1 is the structural schematic diagram and corresponding optical analog schematic diagram of current headlight for vehicles LED light source；
Fig. 2 is reflecting and light distributing type light schematic diagram and corresponding optical analog schematic diagram；
Fig. 3 is that reflection-lens reflect light distribution type light schematic diagram and corresponding optical analog schematic diagram；
Fig. 4 is the utility model automobile headlamp LED light-source structure schematic diagram and corresponding optical analog schematic diagram.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second ", " third " etc. are used for description purposes only, and cannot understand
For indication or suggestion relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, it is above-mentioned that concrete condition understanding can be regarded
The concrete meaning of term in the present invention.
Common automobile front light distribution design can be divided into two kinds of structures: reflecting and light distributing type as shown in Figure 2 and such as Fig. 3 institute
The reflection shown-lens reflect light distribution type, and the design of light distribution is usually: the light that light source issues to the left is through on the left of reflector
The right side of hot spot is assigned to after reflection, the light that light source issues to the right is assigned to a left side for hot spot after reflection on the right side of reflector
Side.
Using automotive halogen lamp with optical analog as with reference to benchmark: most bright spot generally can when the design of Vehicle lamp light distribution is driven on a left side
It deviates to the right, and the right side drives to deviate to the left.
The embodiments of the present invention illustrate the content of the utility model so that a left side is driven as an example, and the right side is driven along reflective
The central axis reverse symmetry of cup；In addition, all simulations are with luminous flux of light source 1000Lm (lumen, the unit of luminous flux) for base
Standard is compared, and halogen lamp is with power difference actual luminous flux in 1500Lm or so, and the luminous flux of LED chip is generally in 2000Lm
More than.
As shown in figure 4, the utility model embodiment provides a kind of automobile headlamp LED light-source structure, including reflector
With the first LED chip and the second LED chip that are set in the reflector, LED chip is a kind of solid state semiconductor devices,
Major function is electric energy to be converted into luminous energy, and the main material of chip is monocrystalline silicon, first LED chip and the reflector
Focus point (installation site of i.e. former halogen light source filament) be overlapped setting, so that it is less to guarantee that light-source brightness reduces, described the
Two LED chips deviate the focus point setting of the reflector.It drives for a left side, (i.e. the first LED chip is set left side LED chip
In left side) when being overlapped with former filament position, brightness reduction less (only reducing about 1/10th), right side LED chip (i.e. second
LED chip is set to right side) deviate focus position, hot spot brightness center is to the right, Ke Yishi consistent with former automotive halogen lamp light distribution
Now replacement in situ, light distribution meet laws and regulations requirement, and car light when can pass through examination of car matches optical test.
Further, the outer dimension of first LED chip and the second LED chip is set as and halogen light source filament
Size is identical, consequently facilitating LED chip directly replaces former halogen light source filament, and is not in light distortion.
Comprehensively consider the preferred spacing of optics and heat dissipation, second LED chip deviates the focus point of the reflector
Distance preferably more than 1mm.
Specifically, it is set to the reflector vertically for the ease of installation, first LED chip and the second LED chip
In, i.e. the first LED chip and the second LED chip are arranged in parallel.
It drives for a left side, first LED chip is in the left side of second LED chip, to realize for a left side
It drives vehicle left side LED light source to be overlapped with former halogen light source filament position, to guarantee that it is less that light-source brightness reduces, with former halogen automobile
Lamp light distribution is consistent, and right side is biased at hot spot brightness center.
Similarly, it drives for the right side, first LED chip is in the right side of second LED chip；To realization pair
Vehicle right side LED light source is driven in the right side to be overlapped with former halogen light source filament position.
In the embodiments of the present invention, specifically, paraboloid, the paraboloidal focus are set as in the reflector
The focus point of the reflector is formed, and coats reflectorized material in the inner wall of reflector, is conducive to the reflection of light, former halogen
Plain filament of light source is set up directly on the focal point, and the setting position of LED chip is identical as halogen light source filament position, therefore can be with
It realizes and directly replaces.
Wherein, simultaneously die bond is on aluminium nitride substrate for first LED chip and the second LED chip upside-down mounting, using upside-down mounting
Mode occupied area is almost consistent with chip size, and in all surface mounting technique, flip-chip can achieve minimum, most thin
Encapsulation, encapsulation technology has many clear advantages, including superior electricity and heat compared with traditional lead key closing process
Performance, high I/O number of pins, package dimension reduction etc. are learned, and is adopted in the outer surface of first LED chip and the second LED chip
It is covered with fluorescent powder with depositing operation, advantageously reduce with light distortion and improves brightness.
The utility model also provides a kind of automobile front comprising automobile headlamp LED light-source structure described above；
The automobile front, which can be realized, directly replaces automotive halogen lamp, and light distribution meets laws and regulations requirement, when can pass through examination of car
Car light match optical test.
As can be seen from the above embodiments, the utility model light-source brightness reduces less, with former automotive halogen lamp light distribution one
It causes, the direct replacement to former halogen lamp may be implemented, and meet light distribution laws and regulations requirement.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (10)
1. a kind of automobile headlamp LED light-source structure, including reflector, which is characterized in that further include being set in the reflector
The first LED chip and the second LED chip, first LED chip is overlapped setting with the focus point of the reflector, described
Two LED chips deviate the focus point setting of the reflector.
2. automobile headlamp LED light-source structure according to claim 1, which is characterized in that second LED chip deviates
The distance of the focus point of the reflector is no more than 1mm.
3. automobile headlamp LED light-source structure according to claim 1, which is characterized in that first LED chip and
Two LED chips are set in the reflector vertically.
4. automobile headlamp LED light-source structure according to claim 1, which is characterized in that first LED chip in
The left side of second LED chip.
5. automobile headlamp LED light-source structure according to claim 1, which is characterized in that first LED chip in
The right side of second LED chip.
6. automobile headlamp LED light-source structure according to claim 1, which is characterized in that be set as in the reflector
Paraboloid, the paraboloidal focus form the focus point of the reflector.
7. automobile headlamp LED light-source structure according to claim 1, which is characterized in that first LED chip and
The outer dimension of two LED chips is set as identical as the size of halogen light source filament.
8. automobile headlamp LED light-source structure according to claim 1-7, which is characterized in that the first LED
Chip and the second LED chip upside-down mounting and die bond is on aluminium nitride substrate.
9. automobile headlamp LED light-source structure according to claim 8, which is characterized in that first LED chip and
The outer surface of two LED chips is covered with fluorescent powder.
10. a kind of automobile front, which is characterized in that including the described in any item automobile headlamp LED light of such as claim 1-9
Source structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119977.5U CN208397972U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile headlamp LED light-source structure and automobile front |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821119977.5U CN208397972U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile headlamp LED light-source structure and automobile front |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208397972U true CN208397972U (en) | 2019-01-18 |
Family
ID=65131813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821119977.5U Active CN208397972U (en) | 2018-07-09 | 2018-07-09 | A kind of automobile headlamp LED light-source structure and automobile front |
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| Country | Link |
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| CN (1) | CN208397972U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030532A (en) * | 2019-05-14 | 2019-07-19 | 华域视觉科技(上海)有限公司 | A kind of lighting system and vehicle |
| WO2024098489A1 (en) * | 2022-11-08 | 2024-05-16 | 嘉兴市光泰照明有限公司 | Design method for led automobile headlight for replacement |
-
2018
- 2018-07-09 CN CN201821119977.5U patent/CN208397972U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110030532A (en) * | 2019-05-14 | 2019-07-19 | 华域视觉科技(上海)有限公司 | A kind of lighting system and vehicle |
| CN110030532B (en) * | 2019-05-14 | 2023-10-20 | 华域视觉科技(上海)有限公司 | Lighting system and vehicle |
| WO2024098489A1 (en) * | 2022-11-08 | 2024-05-16 | 嘉兴市光泰照明有限公司 | Design method for led automobile headlight for replacement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Guangtai Lighting Co.,Ltd. Assignor: JIAXING GUANGTAI LIGHTING Co.,Ltd. Contract record no.: X2024330000108 Denomination of utility model: A structure of LED light source for automotive headlights and automotive headlights Granted publication date: 20190118 License type: Common License Record date: 20240611 |