CN205859854U

CN205859854U - External radiator, detachable LED car lamp

Info

Publication number: CN205859854U
Application number: CN201620862797.0U
Authority: CN
Inventors: 刘威; 陈文祥; 王波; 陈曹杰
Original assignee: Changzhou Tong Bao Photoelectric Co Ltd
Current assignee: Changzhou Tong Bao Photoelectric Co Ltd
Priority date: 2016-08-10
Filing date: 2016-08-10
Publication date: 2017-01-04
Anticipated expiration: 2026-08-10

Abstract

This utility model relates to a kind of external radiator, detachable LED car lamp, this car light includes: lamp housing and radiator, the rear port outer wall of described lamp housing is connected with radiator front end, and described radiator front end face is fixed with luminescent system, and described luminescent system is stretched in lamp housing by the rear port of lamp housing；The radiator being integrally placed at outside lamp house has higher heat transfer efficiency, it is beneficial to quick conductive, thus the temperature difference reduced when car light in work and does not works in lamp house, lampshade is avoided to produce the phenomenon that condensation hazes, improve job stability and the reliability of lamp system, extend the service life of LED module, improve the radiating efficiency controlling element, reduce cost simultaneously.

Description

External radiator, detachable LED car lamp

Technical field

This utility model relates to a kind of external radiator, detachable LED car lamp, for the illumination of automotive front.

Background technology

Existing LED car lamp, can be strong when one as disclosed in Chinese patent literature CN 204829640U utilizes motor racing Making air-cooled automobile-used LED headlight, including housing and translucent cover, housing, translucent cover constitute an annular seal space, in this annular seal space, Being provided with LED component in this housing leading flank, this LED component is located on heat dissipation metal frame, and heat dissipation metal frame extends housing also Form radiating fin, seal between heat dissipation metal frame and housing and coordinate so that the heat in car light quickly can be exported by radiating fin Outside the housing of car light, and by the air-flow produced in vehicle travel process, the described radiating fin extending housing is dissipated Heat.

Above-mentioned the deficiencies in the prior art are: realize sealing between heat dissipation metal frame and housing coordinating, processing technique complexity, Relatively costly.Drive circuit or pcb board is once occurred to damage, inconvenient maintenance；And once take lamp body apart, can not protect when reinstalling Card car light inner chamber sealing, therefore when car light damages typically can only integral replacing and LED lamp bead can not be individually replaced, thus The cost making car light repair and replacement raises, and when user in order to cost-effective and when being individually replaced the side lights damaged, again The brightness making automobile two side lights is inconsistent, affects the quality of lighting of automobile at night；Further, since LED lamp bead and cooling system Being sealed in lamp house, after car light is lighted, in lamp house, temperature raises rapidly, and the temperature after car light extinguishes, in lamp house drops rapidly Low, moisture during bigger difference variation, in lamp house or water vapour can produce condensation on lampshade and haze phenomenon, serious shadow Ring driving safety；Under high-temperature work environment in lamp house, the easy ageing failure of drive circuit in LED component, special It not that the electrolytic solution within electrochemical capacitor thereon easily dries up.

Prior art there is also some LED car lamp, use the internal mode forcing fan air-cooled to strengthen heat radiation, but The work of fan can consume a part of electric energy, thus strengthens the power consumption of car light, and fan also can produce heat while work, The life-span of fan is much smaller than LED car lamp, can affect the heat radiation of car light after fan damages, so that the life-span of car light also reduces.

LED headlamp radiating mode in prior art: had by tipping in totally-enclosed headlight and include great power LED module, LED module is built with radiator, and with radiator electric fan.Purpose makes the heat of LED can be diffused into whole radiator so that it is Reach thermal balance；In the lamp house environment sealed, heat is recycled, the heat lamp room air that radiator sheds, The air pressure sealed increases, outside hot-air part being discharged lamp house by some Ventilated caps.

Shortcoming in terms of technological requirement has: structure is complicated, and high to sealing requirements, weak heat-dissipating, efficiency is low, reliability Difference, cost is high；Internal arbitrary components and parts break down, and all cannot keep in repair.

Use above-mentioned prior art LED car lamp shortcoming:

1, the mode of thermal cycle close to the inner portion reaches thermal balance, and high-power LED radiator temperature is the highest, is unfavorable for that LED is long-term Work reliably；

2, radiator fan the most at high temperature works, and fault rate is high, affects the life-span of lamp；

3, in the lamp house sealed, radiator waste-heat inner air, when internal air pressure increases, by some Individual respiratory organ discharges limited hot-air, but can't resolve radiator and constantly heat up and produce the diffusion of heat.It addition, because of this The sealing requirements of lamp is higher, will influence whether the sealing of lamp with many respiratory organs, and too increase the complicated technology of lamp housing；

4, the headlight structure of internal heat-circulation type is complicated, and technological requirement is high, it is desirable to Inner heat sink volume, area are big, Cooling fan heat radiation power is big.

Utility model content

This utility model primarily solves the technical problem that and is to provide a kind of external radiator, detachable LED car lamp, prevents Lampshade condensation hazes, and decreases the heat transmission to lamp house center, reduces process costs and technological requirement, improve lamp system Job stability and reliability, extend the service life of LED module.

In order to solve above-mentioned technical problem, this utility model provides a kind of external radiator, detachable LED car lamp, its Including: lamp housing and radiator, the rear port outer wall of described lamp housing is connected with radiator front end, fixing on described radiator front end face Luminescent system, described luminescent system is had to be stretched in lamp housing by the rear port of lamp housing.

The rear port of lamp housing coordinates with the forward end seal of radiator, described luminescent system include with the pcb board of Metal Substrate before The LED lamp bead that end face connects, the rear end face of pcb board is connected with the front end face heat conduction of radiator.

The rear port of lamp housing is attached in rotary clamping mode with the front end of radiator, and it is close that both junctions are provided with silica gel Seal.

The lateral surface of lamp housing is provided with some the wind guide tanks by head-on wind guide radiator.

The outer reflector being circumferentially with optically focused of LED lamp bead, LED lamp bead and reflector symmetrical center line altogether.

The outside of reflector is provided with the collecting lens of arc basal plane, LED lamp bead and collecting lens symmetrical center line altogether.

The outside of collecting lens is provided with the lens that the light penetrated by collecting lens is diffused and forms certain angle of emergence, LED lamp bead and lens symmetrical center line altogether.

LED car lamp also includes that the driving being located at outside lamp housing controls box, drives and is provided with control LED lamp bead work in controlling box Control element.

It is provided with heat-conducting glue between rear end face and the front end face of radiator of pcb board.

Described radiator material therefor is intensive column type cold forging fine aluminium, and thermal conductivity ratio die casting aluminium doubles.

Relative to prior art, what this utility model had has the technical effect that

1) external radiator of the present utility model, detachable LED car lamp, radiator entirety is located at lamp housing rear end it Outward, making radiator be completely exposed in atmosphere, direct and air carries out heat exchange；The rear port of lamp housing connects with the front end of radiator Connect, make detachable, compared to existing technology in the mode that a part for radiator is placed in lamp house, this utility model is whole The radiator that body is placed in outside lamp house has higher heat transfer efficiency, beneficially quick conductive, thus reduces car light in work and not work The temperature difference in lamp house when making, it is to avoid lampshade produces the phenomenon that condensation hazes, improves job stability and the reliability of lamp system, Extend the service life of LED module, improve the radiating efficiency controlling element, reduce cost simultaneously.

2) front console of radiator is connected with the Metal Substrate pcb board heat conduction being provided with LED lamp bead, accelerates heat to lamp house The speed of outer transmission and decrease the heat transmission to lamp house center, reduces the operating temperature of LED lamp bead, extends LED module Service life at least 2 times, further reduce car light work time lamp housing in temperature.Before the rear port of lamp housing and radiator End uses rotary clamping mode to be attached, and installing/dismounting is convenient, beneficially rapid-maintenance, and middle car light can only compared to existing technology Integral replacing and cannot the mode of dismounting and change LED lamp bead, significantly reduce maintenance cost；Meanwhile, use in both junctions Silica gel sealing ring, can guarantee that again the sealing of connection while easy to loading and unloading, and silica gel sealing ring is between lamp housing and radiator Also the effect of buffering vibration can be played.

3) wind guide tank utilizing lamp housing outer surface replaces natural air inlet of the prior art, had both served reinforcement and has imported head-on Wind action, is not take up again space in extra enging cabin, enhances radiating effect, in the case of equal radiating efficiency, The volume of radiator can be less than radiator of the prior art, and the space that radiator takies enging cabin is the least, favorably In car light installation on automobile and layout, in the case of not using fan to force cooling, reach as fan coolling Cooling effect.

4) reflector can be gathered the light of LED lamp bead and be launched forward by light, and arc basal plane collecting lens is compared existing Some collecting lenses can improve light efficiency 15% further, reduces the rated power 15% of LED lamp bead, realizes energy-saving and emission-reduction further, Reduce cost；The light that collecting lens sends LED lamp bead puts together the luminous point directive lens that one angle of spread of formation is 15 °, The light penetrated by collecting lens is diffused and forms certain angle of emergence by lens, the light that LED lamp bead sends warp the most successively Crossing collecting lens and lens output lampshade, the loss of its light efficiency is little compared to existing technology, and efficiency is high, is reaching mutually aplanatic situation Under can use more small area analysis, and lower-powered LED power drive circuit can be used, thus reduce the generation of heat further And the above-mentioned car light temperature difference, reduce cost, improve the reliability of whole car light, the service life of LED module can be extended extremely Few 2 times.

5) driving controls the box control element built with control LED lamp bead work, and it is normal that driving control box is placed in outside lamp housing Temperature environment in, compared to existing technology in by control element put into the situation in lamp house, improve control element radiating efficiency, make The element that electric capacity etc. are temperature sensitive, the most aging controls in box away from hot environment, the service life and the driving that improve element The functional reliability of whole control system, can keep in repair, replaceable.

6) it is provided with heat-conducting glue between rear end face and the front end face of radiator of pcb board, connection between the two can be increased Stability, again can accelerated heat transmission between.

Accompanying drawing explanation

In order to understand explanation innovative principle of the present utility model and the technical advantage compared to existing product thereof, below by By the limiting examples applying described principle, possible embodiment is described in accompanying drawing.In the drawings:

Fig. 1 is the principle schematic of LED car lamp of the present utility model；

Fig. 2 is the structural representation of LED car lamp of the present utility model；

Fig. 3 is the schematic diagram driving control box of LED car lamp of the present utility model.

Detailed description of the invention

As Figure 1-3, external radiator of the present utility model, detachable LED car lamp include: lens 1, transparent lamp Cover 2, collecting lens 3, LED lamp bead 4, lamp house 5, pcb board 6, lamp housing 7, radiator 8, plug 9, reflector 10, heat-conducting glue 11, drives The dynamic box 15 that controls, supply socket 16, drive accessory power outlet 17.

Luminescent system includes that the LED lamp bead 4 that pcb board 6 front end face with Metal Substrate is connected, lampshade 2 and lamp housing 7 form car light Lamp house 5, the front end rotary clamping of the rear port of lamp housing 7 and radiator 8 seals to coordinate and (specifically can use the camera lens of slr camera Connected mode with fuselage), at cooperation, one layer of silica gel sealing ring with antihunt action can be installed sealing, radiator 8 is adopted With intensive column type cold forging fine aluminium, on it, the side back to lamp housing 7 is provided with many sheet heat radiators, and radiator 8 is towards the front end face of lamp house 5 Weld back to the rear end face of lamp house 5 with aluminum base PCB plate 6, be additionally provided with between rear end face and the front end face of radiator 8 of pcb board 6 and lead Hot glue 11, this pcb board 6 is welded with LED lamp bead 4 towards the side of lampshade 2, LED lamp bead 4 outer be circumferentially with optically focused effect, Opening reflector 10 forward, the outside of reflector 10 is provided with collecting lens 3, and the outside of collecting lens 3 is provided with lens 1.Described LED lamp bead 4, reflector 10, collecting lens 3, lens 1 symmetrical center line altogether.Wherein pcb board 6, LED lamp bead 4, reflector 10 structure Becoming luminous and cooling system, collecting lens 3, lens 1 constitute light distributing system.Connect on described pcb board 6 and have a wire, this wire One end be connected with the circuit of pcb board 6, its other end seal pass lamp house 5 and with car light outside a plug 9 be connected.Plug 9 It is connected with being located at LED car lamp driving accessory power outlet 17 that is outer and that control on box 15 for controlling the driving of LED lamp bead 4, drives control It is additionally provided with the supply socket 16 being connected with automobile power supply system on box 15 processed, drives and in controlling box 15, be provided with control LED lamp bead 4 work The control element made.

The lateral surface of lampshade 2 and lamp housing 7 is provided with a plurality of wind guide tank by head-on wind guide radiator 8 (being not drawn in figure), This wind guide tank originates in the windward side of lampshade 2, then passes through the gap between engine compartment cover and lampshade 2, lamp housing 7, eventually finally Terminate in the adjacent of lamp housing 7 and radiator 8.

Between radiator 8 and lamp housing 7, installing/dismounting is convenient, beneficially rapid-maintenance, significantly reduces maintenance cost；This Outward, compared to existing technology in a part for radiator is placed in lamp house 5 in and another part be placed in the layout side outside lamp house 5 Formula, radiator of the present utility model be integrally located at that lamp house 5 is outer and lamp bead 4 near the edge of lamp house 5, there is higher heat conduction effect Rate, beneficially quick conductive, quickly to reduce the operating temperature of LED lamp bead, extend the service life of LED module (relative to existing The service life of technology LED module extends more than 2 times) and improve the stability of whole system, due to the work temperature of LED lamp bead 4 Degree reduces, and temperature difference when making car light in work and not work, in lamp house 5 reduces, thus prevents producing condensation on lampshade 2 and haze existing As.

Use arc basal plane collecting lens 3, improve light efficiency 15% further, reduce the rated power 15% of LED lamp bead 4, enter One step realizes energy-saving and emission-reduction, reduces cost, and can use lower-powered LED power drive circuit, can extend making of LED module With life-span more than 2 times；Use multi-channel electronic Integrated design, drive circuit is become one with light adjusting circuit, it is achieved dipped beam, Distance light, turns to, the function of daytime running lamps, reduces the caloric value of circuit.

The light that 3 LED lamp bead 4 of collecting lens send puts together the luminous point directive lens that one angle of spread of formation is 15 ° 1, collecting lens 3 light penetrated is diffused and is formed certain angle of emergence, collecting lens 3 and lens 1 by LED by lens 1 The light that pearl 4 sends all exports lampshade 2, and the loss of its light efficiency is little compared to existing technology, and efficiency is high, is reaching mutually aplanatic feelings Under condition, the input power of LED lamp bead 4 can be reduced, improve the reliability of whole car light.

Obviously, above-described embodiment is only for clearly demonstrating this utility model example, and is not to this reality Restriction with novel embodiment.For those of ordinary skill in the field, the most also may be used To make other changes in different forms.Here without also cannot all of embodiment be given exhaustive.And these Belong to obvious change or variation that spirit of the present utility model extended out still in protection domain of the present utility model Among.

Claims

1. an external radiator, detachable LED car lamp, it is characterised in that including: lamp housing and radiator, after described lamp housing Port outer wall is connected with radiator (8) front end, and described radiator (8) front end face is fixed with luminescent system, described luminescent system Stretched in lamp housing by the rear port of lamp housing.

LED car lamp the most according to claim 1, it is characterised in that: the rear port of lamp housing seals with radiator (8) and coordinates, Described luminescent system includes the LED lamp bead (4) that pcb board (6) front end face with Metal Substrate is connected, and the rear end face of pcb board (6) is with scattered The front end face heat conduction of hot device (8) connects.

LED car lamp the most according to claim 2, it is characterised in that: the front end of the rear port of lamp housing and radiator (8) is with rotation Turning snap fit to be attached, both are provided with silica gel sealing ring in junction.

LED car lamp the most according to claim 3, it is characterised in that: the lateral surface of lamp housing is provided with some and is led by head-on wind Wind guide tank to radiator (8).

5. according to the LED car lamp one of claim 2-4 Suo Shu, it is characterised in that: the outer of LED lamp bead (4) is circumferentially with optically focused Reflector (10), LED lamp bead (4) and reflector (10) symmetrical center line altogether.

LED car lamp the most according to claim 5, it is characterised in that: the outside of reflector (10) is provided with the poly-of arc basal plane Optical lens (3), LED lamp bead (4) and collecting lens (3) symmetrical center line altogether.

LED car lamp the most according to claim 6, it is characterised in that: the outside of collecting lens (3) is provided with collecting lens (3) light penetrated is diffused and is formed the lens (1) of certain angle of emergence, LED lamp bead (4) and lens (1) symmetrical center line altogether.

8. according to the LED car lamp one of claim 2-4 Suo Shu, it is characterised in that: LED car lamp also includes that is located at outside lamp housing drives The dynamic box (15) that controls, driving is provided with in controlling box (15) and controls the control element that LED lamp bead (4) works.

9. according to the LED car lamp one of claim 2-4 Suo Shu, it is characterised in that: the rear end face of pcb board (6) and radiator (8) Front end face between be provided with heat-conducting glue (11).