CN202266959U - Projection-type LED (light-emitting diode) automobile dipped headlight - Google Patents
Projection-type LED (light-emitting diode) automobile dipped headlight Download PDFInfo
- Publication number
- CN202266959U CN202266959U CN2011203860317U CN201120386031U CN202266959U CN 202266959 U CN202266959 U CN 202266959U CN 2011203860317 U CN2011203860317 U CN 2011203860317U CN 201120386031 U CN201120386031 U CN 201120386031U CN 202266959 U CN202266959 U CN 202266959U
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- Prior art keywords
- projection
- light
- radiator
- type led
- dipped headlight
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Abstract
The utility model discloses a projection-type LED (light-emitting diode) automobile dipped headlight which comprises a reflecting shade, a mounting piece, a light distribution lens, a radiator and an aluminum base board, wherein the internal surface of the reflecting shade is in a regular curved surface shape with two focuses; the light distribution lens is fixed onto the front end surface of the mounting piece; the reflecting shade is fixed on the back end surface of the mounting piece; the radiator is fixed to the back end surface of the mounting piece, and the upper end surface of the radiator is covered on the opening of the reflecting shade; the aluminum base board is fixed on the upper end surface of the radiator and provided with at least one LED chip; and the LED chip is positioned on the perifocus on the regular curved surface.
Description
Technical field
The utility model relates to lighting technical field, is specifically related to a kind of projection-type LED automobile dipped headlight.
Background technology
Along with notions such as energy-saving and environmental protection, noble quality and traffic safety are more and more paid attention to by automobile consumption market; That LED relies on that it had is energy-conservation, colour rendering good, simple in structure, advantage such as response is fast, voltage is low, volume is little and the life-span is long; Have much traditional Halogen lamp LED, the trend of xenon lamp of substituting, LED has the potential quality in male despot's automotive lighting market as the novel illumination light source.Early stage LED mainly is used in the lighting environment that low-light levels such as reading, instrument indication require.Along with the LED luminous efficiency is increasingly high, brightness is increasing, and LED also begins to accomplish something in the headlight for vehicles illumination.LED has obtained very good effect and economic benefit as application such as the taillight of automobile, steering indicating light, brake lamps.Present stage applies to LED at the emphasis that has become research and development, invested in the headlamp of automobile; But realize that really the popularization and application of LED car headlamp has got long long way to go; Therefore the defective that the LED headlamp ubiquity luminous flux of prior art is not enough, radiating efficiency is not high is demanded urgently improving.
The utility model content
The technical problem that the utility model will solve provides a kind of projection-type LED automobile dipped headlight, overcomes the defective that LED upper beam flux is not enough, radiating efficiency is not high of prior art.
The utility model is to solve the problems of the technologies described above the technical scheme that is adopted to be:
A kind of projection-type LED automobile dipped headlight; Comprise reflection shield, installation sheet, light-distribution lens, radiator and aluminium base, the inner surface of said reflection shield is the ruled surface shape with two focuses, and said light-distribution lens is fixed on the front end face of said installation sheet; Said reflection shield is fixed on the rear end face of said installation sheet; Said radiator is fixed on the rear end face of said installation sheet, and its upper surface covers the uncovered of said reflection shield, and said aluminium base is fixed on the upper surface of said radiator; Said aluminium base is provided with at least one LEDs chip, and said led chip is on the perifocus position of said ruled surface.
Described projection-type LED automobile dipped headlight, wherein said ruled surface is formed by three identical oval calotte butt joints of shape, and a said led chip is set on the perifocus of each said oval calotte.
Described projection-type LED automobile dipped headlight; Wherein said ruled surface by the identical oval calotte of two shapes be in the middle of these two oval calottes and surface area forms less than the oval calotte butt joint of these two oval calottes, a said led chip is set on the perifocus of each said oval calotte.
Described projection-type LED automobile dipped headlight, the over focus of wherein said oval calotte and the center of said light-distribution lens overlap.
Described projection-type LED automobile dipped headlight, wherein said light-distribution lens is made as planoconvex spotlight.
Described projection-type LED automobile dipped headlight, the fin of wherein said radiator is made as the wave curve form.
Described projection-type LED automobile dipped headlight, the fin of wherein said radiator is made as the sinusoidal period curve form.
Described projection-type LED automobile dipped headlight, the profile of wherein said radiator is arc shape.
The beneficial effect of the utility model: the light that the utility model led light source sends from the reflection shield focus converges at another focus through reflection shield reflection back intersection, through mainly below horizontal direction, throwing after the light-distribution lens refraction, has eliminated the dazzling drawback of light fixture again; Design the undaform curved surface on each fin of radiator, increased area of dissipation, improved radiating efficiency; Aluminium base closely contacts with radiator; Guaranteed thermal conduction effect, and reflection shield is made up of three oval calottes, is provided three focal positions that led light source is installed; Three shared light-distribution lens of oval calotte have not only been practiced thrift the space but also have been provided cost savings; Collimated light beam through lens projects can effectively improve luminous flux with very high brightness projection to far place simultaneously, and the utility model is a much progress of car headlamp technology.
Description of drawings
The utility model comprises following accompanying drawing:
Fig. 1 is the utility model projection-type LED automobile dipped headlight front view;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is the utility model projection-type LED automobile dipped headlight vertical view;
Fig. 4 is the utility model projection-type LED automobile dipped headlight left view;
Fig. 5 is the utility model reflector optical schematic diagram;
Fig. 6 is the utility model partition part drawing.
The specific embodiment
According to accompanying drawing and embodiment the utility model is done further explain below:
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6; The utility model projection-type LED automobile dipped headlight comprises reflection shield 1, installation sheet 2, light-distribution lens 3, radiator 4 and aluminium base 6, and the inner surface of reflection shield 1 is the ruled surface shape with two focuses, and light-distribution lens 3 is fixed on the front end face of installation sheet 2; Reflection shield 1 is fixed on the rear end face of installation sheet 2; Radiator 4 is fixed on the rear end face of installation sheet 2, and its upper surface covers the uncovered of reflection shield 1, and aluminium base 6 is fixed on the upper surface of radiator 4; Aluminium base 6 is provided with at least one LEDs chip 5, and led chip 5 is on the perifocus position of ruled surface.
The further optimization of the utility model is that ruled surface is formed by three identical oval calotte butt joints of shape, and a LEDs chip 5 is set on the perifocus C of each oval calotte.Ruled surface by the identical oval calotte of two shapes be in the middle of these two oval calottes and surface area forms less than the oval calotte butt joint of these two oval calottes, a LEDs chip 5 is set on the perifocus C of each oval calotte.The over focus D of oval calotte and the center of light-distribution lens 3 overlap.Light-distribution lens 3 is made as planoconvex spotlight.The fin of radiator 4 is made as wave curve form or sinusoidal period curve form.The profile of radiator 4 is arc shape.
According to the oval calotte characteristic, the light of launching from perifocus C converges at over focus D after the oval calotte reflection, and three high-power LED light sources 5 lay respectively at one of them perifocus C place of three oval calottes; The over focus of three oval calottes intersects at same point and overlaps with light-distribution lens 3 centers, and the light that LED sends converges at light-distribution lens 3 centers after the oval calotte reflection, through forwards throwing with directional light after light-distribution lens 3 refractions; Installation sheet 2 integrates light barrier and mounting bracket, mainly be used for shield portions light to form "cut-off"line, with reflection shield 1, light-distribution lens 2 and radiator 4 combinations as a whole and with this integral installation in the car headlamp module; Light-distribution lens 3 is planoconvex spotlights, plays the optically focused effect, and the light that light source sends from reflection shield 1 focus converges at another focus through reflector reflection back intersection; Again through mainly below horizontal direction, throwing after the light-distribution lens refraction; Avoided the dazzling irradiation of light fixture, each fin of radiator 4 is the wave-like curved surface, has increased area of dissipation; The profile of radiator 4 is arc shape simultaneously; Arranging in pairs or groups mutually with reflection shield 1 makes whole fitting structure mellow and full full, and aluminium base 6 closely contacts with radiator 4, guarantees thermal conduction effect; The thermal environment that the balance lamp body is inner; Make LED keep good working order, stable and output light flux efficiently, lamp life has obtained prolongation.
It is higher that reflection shield 1 adopts heat resisting temperature in the embodiment of the utility model, and the BMC material that mechanical strength is bigger covers on and stops surplus on the vertical direction (B-B direction) and be convenient to led chip accurately is installed on the focal position of reflection shield.Installation sheet 2 adopts steel SUS304, guarantees support strength, and two-sided baking vanish is with antirust, anti-diffraction.Light-distribution lens 3 requires design, material selection BK7 according to reflector rim of a cup size and focal length.Radiator 4 adopts the higher aluminium 6063 of thermal conductivity factor, and fin adopts the sinusoidal period curved surface.Aluminium base 5 is accurately located on radiator, finds the focal position of reflection shield accurately, contacts with radiator is seamless simultaneously, guarantees optics, the thermal design requirement of light fixture.Led chip 5 adopts real work power greater than 3W, and luminous efficiency is greater than the led light source of 100lm/W, and the total light of light source is logical greater than 1000lum.The light that light source sends from the reflection shield focus converges at another focus through reflection shield reflection back intersection, again through projection forwards after the light-distribution lens refraction.The general power of led light source is between 10W ~ 12W, and total light emission rate is greater than 1000 lumens, and the light fixture light extraction efficiency is greater than 85%.
Those skilled in the art do not break away from the essence and the spirit of the utility model; Can there be the various deformation scheme to realize the utility model; The above is merely the preferable feasible embodiment of the utility model; The interest field that is not so limits to the utility model, the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, and all is contained within the interest field of the utility model.
Claims (8)
1. projection-type LED automobile dipped headlight; It is characterized in that: comprise reflection shield, installation sheet, light-distribution lens, radiator and aluminium base, the inner surface of said reflection shield is the ruled surface shape with two focuses, and said light-distribution lens is fixed on the front end face of said installation sheet; Said reflection shield is fixed on the rear end face of said installation sheet; Said radiator is fixed on the rear end face of said installation sheet, and its upper surface covers the uncovered of said reflection shield, and said aluminium base is fixed on the upper surface of said radiator; Said aluminium base is provided with at least one LEDs chip, and said led chip is on the perifocus position of said ruled surface.
2. projection-type LED automobile dipped headlight according to claim 1 is characterized in that: said ruled surface is formed by three identical oval calotte butt joints of shape, and a said led chip is set on the perifocus of each said oval calotte.
3. projection-type LED automobile dipped headlight according to claim 1; It is characterized in that: said ruled surface by the identical oval calotte of two shapes be in the middle of these two oval calottes and surface area forms less than the oval calotte butt joint of these two oval calottes, a said led chip is set on the perifocus of each said oval calotte.
4. according to claim 2 or 3 described projection-type LED automobile dipped headlights, it is characterized in that: the over focus of said oval calotte and the center of said light-distribution lens overlap.
5. projection-type LED automobile dipped headlight according to claim 4, it is characterized in that: said light-distribution lens is made as planoconvex spotlight.
6. projection-type LED automobile dipped headlight according to claim 5, it is characterized in that: the fin of said radiator is made as the wave curve form.
7. projection-type LED automobile dipped headlight according to claim 5, it is characterized in that: the fin of said radiator is made as the sinusoidal period curve form.
8. projection-type LED automobile dipped headlight according to claim 7, it is characterized in that: the profile of said radiator is arc shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203860317U CN202266959U (en) | 2011-10-12 | 2011-10-12 | Projection-type LED (light-emitting diode) automobile dipped headlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203860317U CN202266959U (en) | 2011-10-12 | 2011-10-12 | Projection-type LED (light-emitting diode) automobile dipped headlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202266959U true CN202266959U (en) | 2012-06-06 |
Family
ID=46157754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203860317U Expired - Fee Related CN202266959U (en) | 2011-10-12 | 2011-10-12 | Projection-type LED (light-emitting diode) automobile dipped headlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202266959U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289395A (en) * | 2016-04-11 | 2017-10-24 | 法雷奥照明公司 | For the headlamp module for the motor vehicles for launching light beam |
| TWI640716B (en) * | 2017-12-29 | 2018-11-11 | 天勤光電股份有限公司 | Light projection module structure |
-
2011
- 2011-10-12 CN CN2011203860317U patent/CN202266959U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289395A (en) * | 2016-04-11 | 2017-10-24 | 法雷奥照明公司 | For the headlamp module for the motor vehicles for launching light beam |
| TWI640716B (en) * | 2017-12-29 | 2018-11-11 | 天勤光電股份有限公司 | Light projection module structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20121012 |