CN202327952U

CN202327952U - Light-emitting diode (LED) light source of automobile headlamp

Info

Publication number: CN202327952U
Application number: CN2011204986280U
Authority: CN
Inventors: 王鲁军
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-01
Filing date: 2011-12-01
Publication date: 2012-07-11
Anticipated expiration: 2021-12-01

Abstract

The utility model relates to a light-emitting diode (LED) light source of an automobile headlamp. An axial long hole is arranged at the center of a lamp base (6), the head portion of the lamp base is a blind hole, the tail portion of the lamp base is connected with a rear hose connector (5), a long and thin guiding tube (7) is arranged in the axial long hole of the lamp base (6), an opening is arranged at the top of the long and thin guiding tube (7)and close to an LED light-emitting tube (3), and the tail portion is communicated with the rear hose connector (5). A radial hole is arranged at the lateral upper portion of the tail portion of the lamp base (6) and communicated with the axial long hole of the lamp base (6), an outlet of the radial hole is connected with a lateral hose connector (4), a polygon prism body (1) is connected with the head portion of the lamp base (6), outer side faces of the polygon prism body are all bonded with copper substrates (2), and the LED light-emitting tube (3) are arranged onto the copper substrates (2) in patch soldering. The LED light source of the automobile headlamp solves the heat dissipation problem, adopts a forced liquid circulation cooling mode, is similar to an existing lamp bulb in shape, volume and lighting effect and strong in heat dissipation effect, and can ensure an LED of the headlamp to work at low junction temperature.

Description

The car headlamp led light source

Technical field

The utility model relates to a kind of car headlamp, particularly a kind of car headlamp led light source.

Background technology

Before the utility model invention, LED has been widely used on the various automobile lamps of automobile except that headlamp, as: the lower-powered light fixture of brake lamp, side-marker lamp, steering indicating light or the like; But the headlamp application facet for lighting power is had relatively high expectations gets into a difficult position, and its restraining factors mainly are that junction temperature, the heat dissipation problem of great power LED is difficult to solve, and people have carried out big quantity research, tackling key problem for this reason; The corresponding techniques patent has also had some; Like patent of invention 200910193172.4 utility model patents 200920221740.2 201020642548.3 or the like, the method that these prior arts adopt basically all is use heat pipe for thermal conductivity, with the fins group natural heat dissipation or add fan forced convection and dispel the heat; It is all right that these methods are used in general occasion; But be used in very big problem is arranged on the car headlamp: great power LED is with about 50 square centimeters/watt of the required area of aluminium alloy fin heat radiation in theory, and the led light source of tens watts of power just needs thousands of square centimeters fins group heat radiation, and this is for the narrow and small installing space of present automobile headlamp; Be too in huge; Can't hold, install, therefore can't with uses that match of existing various car headlamps, be exactly enging cabin because of the headlamp rear portion in addition; Environment temperature can be up to 70-80 degree centigrade; The non-constant of radiating effect can not guarantee the normal use of led light source, and this also is that up to the present car headlamp can not be with the main cause of led light source upgrading.

Summary of the invention

The purpose of the utility model just is to overcome above-mentioned defective, develops a kind of car headlamp led light source.

The technical scheme of the utility model is:

Car headlamp led light source, its major technique are characterised in that at lamp socket (6) center be an axial long hole, and head is a blind hole; Lamp socket (6) afterbody connects rear hose joint (5), and elongated mozzle (7) is arranged in the axial long hole of lamp socket (6), its top drilling and near LED luminous tube (3); Its afterbody is communicated with rear hose joint (5), in lamp socket (6) rear side top, has a radial hole to be communicated with the axial long hole of lamp socket (6); The outlet of radial hole connects side hose coupling (4); Multiedge cylinder (1) is connected with lamp socket (6) head, the outside all bonding copper base in each side (2) of multiedge cylinder (1), and LED luminous tube (3) paster is welded on the copper base (2).

Advantage of the utility model and effect are to adopt the hydronic mode of liquid of forcing; Not only can make very little that light source does; Profile, volume, illumination effect and existing bulb are similar, can directly be installed on the existing car headlamp refractive body, and utilize the big thermal capacity and the flowability of cooling fluid; Heat conduction, radiating effect are also strong a lot of than technique scheme; Can guarantee that car headlamp LED luminous tube is operated in the lower state of junction temperature, the life-span reaches designing requirement, is fit to the harmless repacking of headlamp, the upgrading of various vehicles such as nearly all car, passenger vehicle, lorry.

Concrete advantage of other of the utility model and effect will continue explanation below.

Description of drawings

Fig. 1---the utility model structural principle sketch map.

Each label representes that parts are following among the figure:

Multiedge cylinder (1), copper base (2), LED luminous tube (3), side hose coupling (4), rear hose joint (5), lamp socket (6), elongated mozzle (7).

The specific embodiment

As shown in Figure 1:

Is an axial long hole at lamp socket (6) with multiedge cylinder (1) combination center, and head is blind hole or through hole shutoff, and lamp socket (6) afterbody connects rear hose joint (5); Elongated mozzle (7) is arranged in the axial long hole of lamp socket (6) and multiedge cylinder (1) combination, its top drilling (left end among the figure) and near LED luminous tube (3), and its afterbody is communicated with rear hose joint (5); In lamp socket (6) afterbody side (upper right side among the figure), there is a radial hole to be communicated with the axial long hole of lamp socket (6), the outlet of radial hole connects side hose coupling (4).So just formed the passage of liquid circulation, formed the heat radiation cooling system with fluid reservoir, miniature immersible pump and PU flexible pipe, ready-packaged joint, installation accessories etc. (all omit among the figure, do not draw).Multiedge cylinder (1) is plugged on lamp socket (6) head, can be threaded, and also can weld, and also multiedge cylinder (1) fuses with lamp socket (6), unites two into one; At the outside bonding copper base in each side (2) of multiedge cylinder (1), (high-power) LED luminous tube (3) paster is welded on the copper base (2).

The explanation of the utility model application process:

During work; Cooling fluid gets into lamp socket (6) through rear hose joint (5) under the brute force of micro pump promotes, be directed to from the nearest position of LED luminous tube (3) by elongated mozzle (7) always, refluxes from the slit between elongated mozzle (7) outer surface and the axial long hole hole wall in the back of being rebuffed; Flow out through side hose coupling (4); Flow back to fluid reservoir through connecting flexible pipe, form circulating fluid, thereby take away a large amount of heats that produce when LED luminous tube (3) is worked; Simultaneously because connect with flexible pipe; Can fluid reservoir be placed in away from enging cabin and the huge place (like front bumper air inlet position) of driving wind-force, lower the temperature rapidly, can guarantee that LED luminous tube (3) is operated under the very little state of junction temperature, reach the desirable result of use that light does not wane, the life-span is very long.Lamp socket (6) structure is also small because of volume, can adapt to the small space of the installation of various automotive head lamp bulbs, satisfies the demand of nearly all car headlamp with LED upgrading light source, has filled up the also blank of not replacement type car headlamp led light source of the whole world.

Each side plane according to the multiedge cylinder (1) of the anterior elongated highly heat-conductive material of the lamp socket of the profile of original based on halogen bulb or Xe lamp bulb (like H1, H3, H7 bulb or the like), installation dimension processing all is equipped with the great power LED luminous tube (3) of paster on copper base (2); Form the luminous column illuminator of 360 degree directions of a similar original Halogen lamp LED, xenon lamp; The axial location size that luminous tube is installed is also the same with Halogen lamp LED, xenon lamp; Overlap with car light refractive body focus; Formation with Halogen lamp LED, xenon lamp is the same or similarly shine hot spot, thereby can replace Halogen lamp LED or Xe lamp bulb, and the heat that can LED luminous tube be sent for general power set in the volume so little up to 50-60 watt as original autobulb; Need to discharge the heat energy that accounts for general power 70%; Therefore the utility model has adopted the most powerful forced circulation liquid cools radiating mode, with the huge thermal capacity absorption heat of cooling liquid, takes away heat with the flowability of cooling liquid.

Claims

1. the car headlamp led light source is characterized in that at lamp socket (6) center be an axial long hole, and head is a blind hole; Lamp socket (6) afterbody connects rear hose joint (5), and elongated mozzle (7) is arranged in the axial long hole of lamp socket (6), its top drilling and near LED luminous tube (3); Its afterbody is communicated with rear hose joint (5), in lamp socket (6) rear side top, has a radial hole to be communicated with the axial long hole of lamp socket (6); The outlet of radial hole connects side hose coupling (4); Multiedge cylinder (1) is connected with lamp socket (6) head, the outside all bonding copper base in each side (2) of multiedge cylinder (1), and LED luminous tube (3) paster is welded on the copper base (2).

2. car headlamp led light source according to claim 1 is characterized in that multiedge cylinder (1) is plugged on lamp socket (6) head.

3. car headlamp led light source according to claim 1 is characterized in that multiedge cylinder (1) and lamp socket (6) unite two into one to be integral.