CN205896917U

CN205896917U - Car headlamp subassembly based on LED filament

Info

Publication number: CN205896917U
Application number: CN201620375455.6U
Authority: CN
Inventors: 熊大曦; 王沛沛
Original assignee: SUZHOU KEYI-SKY SEMICONDUCTOR TECHNOLOGIES Inc
Current assignee: SUZHOU KEYI-SKY SEMICONDUCTOR TECHNOLOGIES Inc
Priority date: 2016-04-28
Filing date: 2016-04-28
Publication date: 2017-01-18
Anticipated expiration: 2026-04-28

Abstract

The utility model provides a car headlamp subassembly based on LED filament, includes a light part and a cooling parts, its characterized in that, it includes LED filament and power supply loop and filament mount pad to send out light part, power supply loop divides positive pole and negative pole, and LED filament both ends link to each other with power supply loop positive and negative poles, the LED filament set up in in the filament mount pad, and with the laminating of filament mount pad surface, cooling parts includes heat conduction post and radiator unit, heat conduction post both ends respectively with the filament mount pad with the radiator unit connection that closely cooperates. The utility model provides a does car headlamp subassembly based on LED filament utilize LED filament light high and the little characteristics of size of electricity conversion efficiency make and send out one 360 circumference light emitting area of light part formation, and it is littleer to compare ordinary LED car headlight subassembly light source volume. The defect that ordinary LED car headlight temperature rise is high, outgoing light shape is poor has been overcome, the utility model discloses has the advantage in the aspect of light source life -span, light shape effect and cost.

Description

A kind of automobile front assembly based on LED lamp silk

Technical field

This utility model is related to automotive lighting field, more particularly to a kind of led headlight for vehicles making light source with led.

Background technology

Automobile front is the requisite important component part of automobile.The species of automobile front light source is main at present There are Halogen light, xenon lamp and three kinds of LED lamp.

Halogen light efficiency is low, the life-span is only 500 hours about, once serious light decay occurs being accomplished by changing light source in time, To eliminate safe hidden trouble.

And Halogen light changes the outfit, xenon lamp needs to be related to a lot of opticses, relatively costly, and the life-span of xenon lamp is also only 3000 hours about.

Led, as new type light source, has huge advantage in terms of luminous efficiency, life-span lamp, so many car owner's selections will The halogen regenerative-cycle headlamp of first wife is changed to led headlight.

But led headlight for vehicles assembly in the market is although wide variety, but the following defect of generally existing: 1. outgoing Light shape effect on driving birds is not good, after reason is, dress led module efficient light sources volume is big compared with former car Halogen light, and non-360-degree circumference lights, Mismatch with the headlight reflector of first wife's vehicle, emergent light shape is poor；2. radiating effect is poor, and reason is to produce led Raw heat is derived in time so that led chip temperature raises, and optical-electronic conversion efficiency is gradually lowered；3. led luminous efficiency is not high. The LED light source that on market, commonly used cob or smd mode encapsulates, one single chip driving current is larger, and efficiency is not relatively high.

Therefore, it is necessary to propose a kind of new led automobile front light source assembly, big before existing automobile for directly replacing The halogen light sources such as h7, h1 that lamp uses, without the miscellaneous part changing former headlight optical system.Overcome existing market On common led headlight for vehicles assembly temperature rise, the defect of emergent light shape difference, realize higher luminous efficiency and more preferable outgoing Light shape.

Utility model content

This utility model provides a kind of automobile front assembly based on LED lamp silk it is intended to the existing led automobile of solution is big The emergent light shape of lamp assembly generally existing is poor, and luminous efficiency is not good enough, the problem of radiating efficiency difference.

For solving the above problems, this utility model provides a kind of automobile front assembly based on LED lamp silk, including send out Light part and thermal component are it is characterised in that described luminous component includes LED lamp silk, current supply circuit and filament mounting seat, described LED lamp silk is arranged in described filament mounting seat, and fits with described filament mounting seat outer surface；Described current supply circuit divides positive pole And negative pole, it is connected with described LED lamp silk two ends respectively；Described thermal component is arranged at described luminous component rear end, including heat conduction Post and radiating subassembly, described heating column two ends are fitted close even with described filament mounting seat and described radiating subassembly respectively Connect.

Preferably, described filament quantity is one or more, and every group of filament length is 0.5 ~ 30mm, including led crystal grain, admittedly Brilliant glue, fluorescent material and substrate etc., filament can be that one side lights or double-side.

Preferably, described filament mounting seat is circular or n side shape cylinder, and n is the integer more than or equal to 2, cylinder table Face is provided with high reflection material coating.

Preferably, described radiating subassembly includes fin or cooling fan.

Preferably, the material of described heating column is highly heat-conductive material, or embedded heat pipe.

Preferably, described fin material is the metal material such as aluminum or copper.

Preferably, described substrate material be sapphire, pottery or metal.

The above-mentioned automobile front assembly based on LED lamp silk, substitutes traditional led headlight for vehicles by using LED lamp silk and adopts The led module that cob or smd mode encapsulates, has the advantage that luminous efficiency height sent out by (1) filament, can greatly improve car light Brightness, and reduce electrical power consumed；(2) on the other hand, the diameter very little of filament, can easily by multiple filaments formed one little straight The luminous side face in footpath so that rear dress led headlight closer to former car Halogen light outgoing light type, illumination is higher simultaneously；(3) by High in the luminous efficiency of LED lamp silk, then mean that the heat producing is less, in conjunction with improved heat dissipation design so that what light source produced Heat can be discharged in time, keep light source to be in relatively low operating temperature, extend life of product；(4) high-volume is raw for LED lamp silk Produce, low price, with low cost.

Brief description

Fig. 1 is the three dimensional structure diagram of the embodiment 1 that this utility model provides

Fig. 2 is the three-dimensional sectional structural representation of the embodiment 1 that this utility model provides

Fig. 3 is the LED lamp silk internal structure schematic diagram that this utility model provides

Fig. 4 is the filament three dimensional structure diagram of the embodiment 1 that this utility model provides；

Fig. 5 is the luminous component three dimensional structure diagram of the embodiment 1 that this utility model provides；

Fig. 6 is the filament three dimensional structure diagram of the embodiment 2 that this utility model provides；

Fig. 7 is the luminous component three dimensional structure diagram of the embodiment 2 that this utility model provides；

Fig. 8 is the dipped headlights emergent light shape software analog result that certain brand automobile headlight uses former car halogen light source；

Fig. 9 is the dipped headlights emergent light shape software simulation knot that certain common LED light source assembly used instead by certain brand automobile headlight Really；

Figure 10 is the automobile front assembly based on LED lamp silk that this utility model offer used instead by certain brand automobile headlight The dipped headlights emergent light shape software analog result of embodiment 2.

Wherein, 1:led filament；11: substrate；12:led crystal grain；13: fluorescent material；14:led filament positive pole；15:led filament Negative pole；2: current supply circuit；3: heating column；4: radiating fin；5: cooling fan；6: ready-packaged joint；7: Transparent lamp shade；8: filament peace Dress seat；81: reflectance coating.

Specific embodiment

Describe preferred implementation of the present utility model below in conjunction with the accompanying drawings in detail.

Embodiment 1:

As shown in Figure 1, 2, the automobile front assembly that this utility model provides comprises LED lamp silk 1, current supply circuit 2, heat conduction Post 3, radiating fin 4, cooling fan 5, ready-packaged joint 6, Transparent lamp shade 7.Ready-packaged joint 6 and the installation buckle of generic halogen headlight Unanimously, the convenient directly original halogen light source of replacement.It is provided with noble gases in Transparent lamp shade, slow down LED lamp silk and use frequent During rate of ageing.Cooling fan 5 is arranged at radiating fin 4 center, with active heat removal form by the heat of LED light source assembly Amount is discharged in time.

As Fig. 3,4, LED lamp silk 1 is born by substrate 11, led crystal grain 12, fluorescent material 13, crystal-bonding adhesive, filament positive pole 14, filament Pole 15 forms.Substrate material is sapphire, wide 0.7mm, and long 5mm, led crystal grain is fixed on surface, substrate by crystal-bonding adhesive Inside it is provided with circuit layer, led crystal grain is flip-chip, connects without gold thread.As shown in figure 4, fluorescent material is intactly coated on led Chip and substrate surface, the effective luminous site of filament is a φ 0.8mm, the periphery of long 5mm.

Fig. 5 is luminous component three dimensional structure diagram, and filament mounting seat 8 is the orthohexagonal cylinder in section, regular hexagon The direct 4mm of circumscribed circle, six sides are provided with filament mounting seat 8, and the both positive and negative polarity of LED lamp silk 1 is respectively with current supply circuit just Negative pole is connected, and after current supply circuit is connected with headlight for vehicles power supply, LED lamp silk 1 lights.Filament mounting seat 8 surface is provided with height Reflective material coatings 81, LED lamp silk is fitted with it so that heat that led crystal grain produces can pass through heating column 3 in time conducts to scattered Thermal part.Thermal component includes radiating fin 4, and carries out active heat removal by cooling fan 5.

LED lamp silk 1 has the characteristic that 360 ° of circumference light, because filament mounting seat 8 surface is provided with reflectance coating 81, therefore After current supply circuit is connected with headlight for vehicles power supply, the automobile front assembly based on LED lamp silk described in embodiment 1 luminous Part is a diameter 3-4mm.The cylinder circumference luminous body of high 5mm.Compare traditional led headlight for vehicles module, this utility model The automobile front assembly efficient lighting area providing is less, is beneficial to outgoing more preferable light shape after installation.

Embodiment 2:

As Fig. 6, in the LED lamp silk 1 of embodiment 2, fluorescent material 13 is applied only on substrate there is led crystal grain side, substrate material For metal.Other structures are consistent with LED lamp silk in embodiment 1.

As Fig. 7, filament mounting seat 8 is octagon cylinder, and the side of the uncoated fluorescent material of LED lamp silk 1 is directly and filament Fit in mounting seat 8 surface, therefore the heat that the LED lamp silk in embodiment 2 produces can conduct to fin through heating column much sooner 4, and cooled fan 5 discharged in the form of active heat removal, better heat-radiation effect.

As Fig. 8-10, Fig. 8 is the emergent light shape software analog result that certain brand automobile headlight uses halogen light source, Fig. 9 It is the emergent light shape software analog result that common LED light source assembly used instead by certain brand automobile headlight, Figure 10 is certain brand automobile The emergent light shape software mould of the automobile front Assemblies Example 2 based on LED lamp silk of this utility model offer used instead by headlight Intend result, from the contrast of analog result as can be seen that due to light source volume less, using this utility model provide based on The automobile front assembly of LED lamp silk is in emergent light shape closer to genuine halogen light source.

Above-described is only preferred implementation of the present utility model it is noted that ordinary skill for this area For personnel, on the premise of creating design without departing from this utility model, some deformation can also be made and improve, these all belong to In protection domain of the present utility model.

Claims

1. a kind of automobile front assembly based on LED lamp silk, including luminous component and thermal component it is characterised in that described Luminous component includes LED lamp silk, current supply circuit and filament mounting seat, and described LED lamp silk is arranged in described filament mounting seat, and Fit with described filament mounting seat outer surface；Described current supply circuit divides positive pole and negative pole, respectively with described LED lamp silk two ends phase Even；Described thermal component is arranged at described luminous component rear end, and including heating column and radiating subassembly, described heating column two ends are respectively It is closely connected with described filament mounting seat and described radiating subassembly.

2. a kind of automobile front assembly based on LED lamp silk according to claim 1 is it is characterised in that described led Filament is made up of led crystal grain, crystal-bonding adhesive, fluorescent material and substrate etc., and described LED lamp silk quantity is one or more groups of, every group of length For 0.5 ~ 30mm, described LED lamp silk lights or double-side for one side.

3. a kind of automobile front assembly based on LED lamp silk according to claim 1 is it is characterised in that described lamp Silk mounting seat is circular or n side shape cylinder, and n is the integer more than or equal to 2, and damaged surface is provided with high reflection material coating.

4. a kind of automobile front assembly based on LED lamp silk according to claim 1 is it is characterised in that described radiating Assembly includes fin or includes cooling fan.

5. a kind of automobile front assembly based on LED lamp silk according to claim 1 is it is characterised in that described heat conduction The material of post is highly heat-conductive material, or for embedding heat pipe.

6. a kind of automobile front assembly based on LED lamp silk according to claim 4 is it is characterised in that described fin Material is the metal material such as aluminum or copper.

7. a kind of automobile front assembly based on LED lamp silk according to claim 2 is it is characterised in that described base Sheet material matter is sapphire, ceramic or metal.