CN104566115A - LED automobile headlamp - Google Patents
LED automobile headlamp Download PDFInfo
- Publication number
- CN104566115A CN104566115A CN201510018608.1A CN201510018608A CN104566115A CN 104566115 A CN104566115 A CN 104566115A CN 201510018608 A CN201510018608 A CN 201510018608A CN 104566115 A CN104566115 A CN 104566115A
- Authority
- CN
- China
- Prior art keywords
- led
- pedestal
- automobile headlamp
- lamp
- radiator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011324 beads Substances 0.000 claims abstract description 29
- 238000001816 cooling Methods 0.000 claims abstract description 6
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- 125000004122 cyclic group Chemical group 0.000 claims description 7
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- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 2
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- 150000002367 halogens Chemical class 0.000 description 6
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound 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[W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/42—Forced cooling
- F21S45/43—Forced cooling using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
- F21S41/141—Light emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Abstract
The invention discloses an LED (light emitting diode) automobile headlamp. The LED automobile headlamp is provided with a conductive and radiating LED lamp base, wherein the front end of the LED lamp base is symmetrically fixed with one pair of LED lamp beads, the rear end of the LED lamp base is connected with a circuit board, one pin of each LED lamp bead is connected with the LED lamp base, the other pin of the LED lamp bead is connected with the circuit board, the rear end of the LED lamp base is connected with a radiator on which a cooling fan is arranged, and the fan is connected with the circuit board. The LED automobile headlamp is low in operating temperature and power consumption, high in output lighting effect, long in service life and low in Light failure.
Description
[technical field]
The present invention relates to automobile lamp, particularly relate to a kind of LED automobile headlamp making light source with LED.
[background technology]
At present, along with social progress and economic development, automobile extensively enters family.Car light is the important component part of automobile, and it travels at vehicle and ensures to have important effect in traffic safety.For a long time, automobile lamp continues to use Halogen lamp LED and hernia lamp always, though they can meet basic instructions for use, also has that operating temperature is high, power consumption is large, exports that light efficiency is low, service life is short, light decay is large, startup has the open defects such as time delay.As 55W/12V Halogen lamp LED in use, temperature near its bulb is greater than 250 DEG C, and the Lamp cup of headlight for vehicles adopts plastic shaping mostly at present, and forms reflector layer at Lamp cup plating inner surface reflectorized material, under above-mentioned high temperature action, the reflectorized material of Lamp cup is understood accelerated ageing and comes off.Current headlight for vehicles all adopts sealing means, and heat cools naturally by lamp body.Mostly adopt the high plastics of transparency to make because Lamp cup is anterior, and the temperature of lamp pearl front plastic casing is more than 100 DEG C, causes the transparent plastic accelerated ageing in headlight for vehicles front and turns to be yellow, after using a period of time, light transmittance can decline, and light is exported and weakens, harm traffic safety.The power of existing Halogen lamp LED is 55W, and luminous flux is in 1000LM (lumen) left and right, and every W luminous flux exports about 18LM.The hours in service life about 3000 of existing Halogen lamp LED, use after 3000 hours, luminous flux has been down to less than 75% of initial value.Meanwhile, Halogen lamp LED uses tungsten filament to do illuminator, and Hou Qi center temperatures as high 2600 degree is lighted in energising.
[summary of the invention]
The present invention is intended to solve the problem, and provides a kind of operating temperature low, and power consumption is little, output light efficiency is high, long service life, the LED automobile headlamp that light decay is little.
For achieving the above object, the invention provides a kind of LED automobile headlamp, this LED automobile headlamp is provided with a LED pedestal that can conduct electricity and dispel the heat, the front end of this LED pedestal is symmetrically fixed with a pair LED lamp bead, the rear end of LED pedestal is connected with wiring board, a pin of described LED lamp bead and the conducting of described LED pedestal, another pin of LED lamp bead is connected with wiring board, the rear end of described LED pedestal is connected with radiator, this radiator is fixed with cooling fan, and this fan is connected with described wiring board.
LED pedestal is metallic rod shaped body, its leading section central authorities are provided with rectangular block shape projection, this convexes to form two symmetrical LED installed surfaces, two LED installed surfaces are respectively equipped with a LED lamp bead, two LED lamp bead have common focus, and the other end of LED pedestal is threaded with described radiator or rivets fixing.
Described LED pedestal is copper rhabodoid.
Two described LED installed surfaces are the inclined-planes tilted to the centerline direction of the rhabodoid of LED pedestal.
By two conical surface transition between the rhabodoid of described LED pedestal and the projection of its front end.
Described LED pedestal is arranged with can the ready-packaged joint of plug, this ready-packaged joint comprises the sleeve pipe matched with the rhabodoid of described LED pedestal and the cyclic convex edge being located at its end, one end, this ready-packaged joint is loaded on the rear portion of the Reflecting lamp cup of the automobile lamp of standard configuration, its cyclic convex edge is placed in the lamp hole of Reflecting lamp cup, the rhabodoid of described LED pedestal inserts in the sleeve pipe of ready-packaged joint, and extends in Reflecting lamp cup.
Described wiring board is provided with the attaching plug matched with the automobile lamp supply hub of standard configuration.
Wiring board is provided with constant current, current-limiting circuit, this constant current, current-limiting circuit comprise self-recoverage protective tube FU1, current-limiting resistance R1 and diode D1, wherein, described self-recoverage protective tube FU1 and current-limiting resistance R1 is connected in series with described attaching plug, and described diode D1 is attempted by between described self-recoverage protective tube FU1 and fan.
Described radiator is gilled radiator.
Contribution of the present invention is, it efficiently solves the problem existing for orthodox car headlight.LED automobile headlamp of the present invention integrates the functions such as conduction, heat radiation and Fast Installation, has operating temperature low, power consumption is little, output light efficiency is high, long service life, the features such as light decay is little.The input power of this LED automobile headlamp is only 16W, and luminous flux exports and is greater than 1600LM (lumen), and lamp pearl normal service life was more than 30000 hours, and optical attenuation is less than 5%.LED automobile headlamp of the present invention has complete cooling system, and the life-span of its fan is greater than 30000 hours, and is provided with the function such as current limliting, overload protection by constant current, current-limiting circuit.The normal working temperature of LED lamp bead of the present invention is less than 85 DEG C, and what send due to LED is cold light source, and therefore Lamp cup front temperature is lower than environment temperature 3 DEG C.It is little that the present invention also has volume, compact conformation, the features such as convenience quick for installation.
[accompanying drawing explanation]
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is circuit theory diagrams of the present invention.
Fig. 3 of the present inventionly installs and uses view.
[detailed description of the invention]
The following example is further explanation of the present invention, does not constitute any limitation the present invention.
Consult Fig. 1, LED automobile headlamp of the present invention comprises LED pedestal 10, LED lamp bead 20, radiator 40, fan 50, ready-packaged joint 60 and constant current, current-limiting circuit 80.
As shown in Figure 1, this LED automobile headlamp is provided with a LED pedestal 10 that can conduct electricity and dispel the heat, this LED pedestal 10 is metallic rod shaped body, in the present embodiment, the copper rhabodoid that this LED pedestal 10 is made for brass, it both possessed electric conductivity, had again high-efficiency heat conduction performance, and its heat that LED lamp bead 20 can be produced is transmitted to rapidly radiator 40.Be provided with rectangular block shape projection 11 in the leading section central authorities of LED pedestal 10, this projection 11 forms two symmetrical LED installed surfaces 111, for installing LED lamp bead 20.In the present embodiment, two described LED installed surfaces 111 are the inclined-planes tilted to the centerline direction of the rhabodoid of LED pedestal 10, and this inclined-plane makes the focus of the LED lamp bead 20 be contained on this inclined-plane more concentrated.By the transition of two conical surfaces 12 between described protruding 11 and the rhabodoid of LED pedestal 10.The rear end of described LED pedestal 10 is threaded with described radiator 40 or rivets fixing, and is connected with wiring board 30.
In Fig. 1, two LED installed surfaces 111 of LED pedestal 10 end are equiped with a pair LED lamp bead 20 symmetrically, in the present embodiment, two LED lamp bead 20 are the large-power LED light bead of round end, and its input voltage is 12 ~ 14.5V, and power is 16W, luminous flux is 1600LM, reach more than 30000 hours service life, during LED lamp bead work, the temperature near it is less than 90 DEG C.Described two LED lamp bead 20 have common focus, and the light focusing of two LED lamp bead is in the same focus in front.Two described LED lamp bead 20 are fixedly welded on two installed surfaces 111 of LED pedestal, and a pin of LED lamp bead 20 and the conducting of described LED pedestal 10, another pin of LED lamp bead 20 is connected with wiring board 30 by wire.
As Fig. 1, the rear end of described LED pedestal 10 is connected with radiator 40, in the present embodiment, the gilled radiator that this radiator 40 is made for aluminium alloy, its plane side is threaded with LED pedestal 10 or rivets fixing, because LED pedestal 10 is copper pedestal, its heat that LED lamp bead 20 can be produced is transmitted to rapidly radiator 40.Be fixed with cooling fan 50 in the fin side of this radiator 40, this fan is two ball fans, and its service life is greater than 30000 hours.Can be cooled to radiator 40 by this fan 50.This fan 50 is connected with described wiring board 30, for it provides power supply.
For ensureing the security used, the present invention is provided with constant current, current-limiting circuit 80, and to provide current limliting and overload protection, this constant current, current-limiting circuit 80 are located on wiring board 30.As shown in Figure 2, this constant current, current-limiting circuit 80 comprise self-recoverage protective tube FU1, current-limiting resistance R1 and diode D1, wherein, described self-recoverage protective tube FU1 and current-limiting resistance R1 is connected in series with described attaching plug 31, and described diode D1 is attempted by between described self-recoverage protective tube FU1 and cooling fan 50.When causing electric current to exceed rated operational current due to overload, described self-recoverage protective tube FU1 by auto power off, with anti-tamper LED lamp bead 20.When electric current recovers normal, self-recoverage protective tube FU1 is by automatic conducting.
For adaptive general-utility car headlight and be convenient to quick installation, the present invention is provided with can the ready-packaged joint 60 of plug.As shown in Figure 3, this ready-packaged joint 60 comprises sleeve pipe 61 and cyclic convex edge 62, and wherein, sleeve pipe 61 matches with the rhabodoid of described LED pedestal 10, and cyclic convex edge 62 matches with the lamp hole 71 of the Reflecting lamp cup of standard configuration automobile lamp.This ready-packaged joint 60 is loaded on the posterior central of the Reflecting lamp cup 70 of the automobile lamp of standard configuration, and its cyclic convex edge 62 is placed in the lamp hole 71 of Reflecting lamp cup 70, and is fixed by the car light jump ring 73 of standard configuration.The rhabodoid of described LED pedestal 10 inserts in the sleeve pipe 61 of ready-packaged joint, is sealed between LED pedestal 10 and sleeve pipe 61 by two O RunddichtringOs 63.The front end of the rhabodoid of LED pedestal 10 extends in Reflecting lamp cup 70.LED automobile headlamp of the present invention can be installed on automobile quickly and easily by this ready-packaged joint 60.
As Fig. 3, described wiring board 30 is provided with attaching plug 31, this attaching plug 31 matches with the automobile lamp supply socket 72 of standard configuration, easily LED automobile headlamp of the present invention can be connected to automobile power source.
Take this, LED automobile headlamp of the present invention when not changing automobile lamp original structure, can replace original Halogen lamp LED and hernia lamp by LED automobile headlamp of the present invention, and effectively improves the combination property of headlight for vehicles.
Although by above embodiment to invention has been announcement, protection scope of the present invention is not limited thereto, under the condition not departing from the present invention's design, all will fall in right of the present invention the distortion, replacement etc. that above each component does.
Claims (9)
1. a LED automobile headlamp, it is characterized in that, this LED automobile headlamp is provided with a LED pedestal (10) that can conduct electricity and dispel the heat, the front end of this LED pedestal (10) is symmetrically fixed with a pair LED lamp bead (20), the rear end of LED pedestal (10) is connected with wiring board (30), a pin of described LED lamp bead (20) and described LED pedestal (10) conducting, another pin of LED lamp bead (20) is connected with wiring board (30), the rear end of described LED pedestal (10) is connected with radiator (40), this radiator (40) is fixed with cooling fan (50), this use fan (50) is connected with described wiring board (30).
2. LED automobile headlamp as claimed in claim 1, it is characterized in that, described LED pedestal (10) is metallic rod shaped body, its leading section central authorities are provided with rectangular block shape projection (11), this projection (11) forms two symmetrical LED installed surfaces (111), two LED installed surfaces (111) are respectively equipped with a LED lamp bead (20), two LED lamp bead (20) have common focus, and the other end of LED pedestal (10) is threaded with described radiator (40) or rivets fixing.
3. LED automobile headlamp as claimed in claim 2, it is characterized in that, described LED pedestal (10) is copper rhabodoid.
4. LED automobile headlamp as claimed in claim 3, is characterized in that, two described LED installed surfaces (111) are the inclined-planes tilted to the centerline direction of the rhabodoid of LED pedestal (10).
5. LED automobile headlamp as claimed in claim 3, is characterized in that, by the transition of two conical surfaces (12) between the rhabodoid of described LED pedestal (10) and the projection (11) of its front end.
6. LED automobile headlamp as claimed in claim 2 or claim 3, it is characterized in that, described LED pedestal (10) is arranged with can the ready-packaged joint (60) of plug, this ready-packaged joint (60) comprises the sleeve pipe (61) matched with the rhabodoid of described LED pedestal (10) and the cyclic convex edge (62) being located at its end, one end, this ready-packaged joint (60) is loaded on the rear portion of the Reflecting lamp cup (70) of the automobile lamp of standard configuration, its cyclic convex edge (62) is placed in the lamp hole (71) of Reflecting lamp cup (70), the rhabodoid of described LED pedestal (10) inserts in the sleeve pipe (61) of ready-packaged joint, and extend in Reflecting lamp cup (70).
7. LED automobile headlamp as claimed in claim 1, it is characterized in that, described wiring board (30) is provided with the attaching plug (31) matched with the automobile lamp supply hub (72) of standard configuration.
8. LED automobile headlamp as claimed in claim 7, it is characterized in that, described wiring board (30) is provided with constant current, current-limiting circuit (80), this constant current, current-limiting circuit (80) comprise self-recoverage protective tube FU1, current-limiting resistance R1 and diode D1, wherein, described self-recoverage protective tube FU1 and current-limiting resistance R1 is connected in series with described attaching plug (31), and described diode D1 is attempted by between described self-recoverage protective tube FU1 and fan (50).
9. LED automobile headlamp as claimed in claim 1, it is characterized in that, described radiator (40) is gilled radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018608.1A CN104566115A (en) | 2015-01-14 | 2015-01-14 | LED automobile headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018608.1A CN104566115A (en) | 2015-01-14 | 2015-01-14 | LED automobile headlamp |
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| CN104566115A true CN104566115A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510018608.1A Pending CN104566115A (en) | 2015-01-14 | 2015-01-14 | LED automobile headlamp |
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| CN107883343A (en) * | 2017-09-20 | 2018-04-06 | 东莞市欧科光电科技有限公司 | A kind of LED automobile headlamp temperature-control ice cold heat sink |
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Application publication date: 20150429 |