CN103244932A - External heat dissipation mechanism for LED front steering lamp - Google Patents

External heat dissipation mechanism for LED front steering lamp Download PDF

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Publication number
CN103244932A
CN103244932A CN2013102036465A CN201310203646A CN103244932A CN 103244932 A CN103244932 A CN 103244932A CN 2013102036465 A CN2013102036465 A CN 2013102036465A CN 201310203646 A CN201310203646 A CN 201310203646A CN 103244932 A CN103244932 A CN 103244932A
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CN
China
Prior art keywords
aluminum
led
circuit board
aluminium bonnet
aluminium
Prior art date
Application number
CN2013102036465A
Other languages
Chinese (zh)
Inventor
张雪芹
尹友军
李君�
游帅
朱泽峰
Original Assignee
江苏文光车辆附件有限公司
Priority date (The priority date 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 date listed.)
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Application filed by 江苏文光车辆附件有限公司 filed Critical 江苏文光车辆附件有限公司
Priority to CN2013102036465A priority Critical patent/CN103244932A/en
Publication of CN103244932A publication Critical patent/CN103244932A/en

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Abstract

An external heat dissipation mechanism for an LED front steering lamp comprises a lens (1), a lamp shell (2), an aluminum based circuit board (3), heat conducting silicone ester (4), a driving power supply (5), an aluminum rear cover (6), an aluminum rear cover bottom plate (7), an aluminum rear cover tooth piece (8) and an LED light source (9), wherein the lens (1) is arranged on the lamp shell (2), the heat conducting silicone ester (4) is coated at the back of the aluminum based circuit board (3) which is arranged in an inner cavity of the lamp shell (2), the aluminum rear cover (6) clings onto the aluminum based circuit board (3), and the driving power supply (5) is mounted on the aluminum rear cover (6). The external heat dissipation mechanism is characterized in that the driving power supply (5) is arranged outside the lamp and connected with the aluminum based circuit board (3) through a lead. The external heat dissipation mechanism is simple in structure and can effectively prevent the adverse effects of low luminous intensity, serious light failure, damage of electronic components and the like of a high-power LED due to over-high current, and complaint and claim of customers are greatly decreased.

Description

A kind of external cooling mechanism of LED front directional tool
Technical field
The present invention relates to a kind of external cooling mechanism of LED front directional tool.
Background technology
At present, the LED lighting is replacing traditional illuminating product gradually becomes main product.With regard to the relatively nervous light fixture in lamp house space, traditional method is when arranging LED, consider the high and heat sink conception shortcoming of heat that LED front directional tool produces etc., general normal basis turns to the different low-power LEDs of arranging tens even tens of the classification of function, realize that by mode in parallel and that series connection combines circuit changes the control electric current of resistance, to guarantee light efficiency.Usually by increasing the heat radiation that air-vent is realized light fixture at lamp housing (being base), its radiating effect is often not good, the light decay that LED often occurs seriously, luminance shortage and life-span reduction etc., cause client to complain and increase, claim damages increase.Described LED front directional, its LED are the luminous tubes with diode characteristic, it can only folk prescription to energising.Usually brightness is exported and is directly proportional by the LED electric current, but great power LED saturated phenomenon can occur under big electric current, and luminous efficiency can descend significantly, even loses efficacy.Therefore the use electric current of great power LED can not surpass the rated value of its regulation.When work, can produce a large amount of heat.When a plurality of LED were densely arranged, the gathering of heat will be even more serious.If as early as possible this heat is not shed, thing followed fuel factor will be very obvious, and this will cause the chip internal heat accumulation, causes a series of problems such as light efficiency decline and shortening in service life.So in LED front directional tool, the structural design of external heat sink is very crucial, it directly has influence on the heat-sinking capability of whole system.
Summary of the invention
At above deficiency, the object of the present invention is to provide a kind of external cooling mechanism of LED front directional tool, by the aluminium bonnet heat is dispersed in the light fixture air outside environment, guarantees that the use electric current of LED is no more than the long-life of rated value and the light fixture of its regulation.
Technical scheme of the present invention realizes in the following manner: the external cooling mechanism of a kind of LED front directional tool, comprise lens, lamp housing, aluminum-based circuit board, conduction estersil, driving power, aluminium bonnet, aluminium bonnet base plate, aluminium bonnet gear piece and led light source, described lamp housing is provided with lens, the backside of aluminum-based circuit board is covered with conduction estersil and is located at the inner chamber of lamp housing, the aluminium bonnet is close on the aluminum-based circuit board, driving power is installed on the aluminium bonnet again, it is characterized in that: described driving power is arranged in the light fixture outside, is connected with aluminum-based circuit board with lead.
Described aluminium bonnet is provided with aluminium bonnet base plate and aluminium bonnet gear piece, and the height of aluminium bonnet is the height sum of aluminium bonnet base plate and aluminium bonnet gear piece, the aluminium bonnet be shaped as zigzag.
Described led light source is that six 1W great power LEDs are as light source.
The present invention, simple in structure, can prevent effectively that great power LED is because of harmful effect such as use that the excessive luminous intensity that causes of electric current is low, light decay is serious and electronic devices and components are impaired.Client's complaint and claim have been significantly reduced.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the front view of aluminium rear cover structure of the present invention.
Fig. 3 is the cutaway view of Fig. 1.
Fig. 4 is aluminum-based circuit board and driving power connection diagram.
Among the figure: 1 is that lens, 2 is that lamp housing, 3 is that aluminum-based circuit board, 4 is that conduction estersil, 5 is that driving power, 6 is that aluminium bonnet, 7 is that aluminium bonnet base plate, 8 is that aluminium bonnet gear piece, 9 is led light source.
The specific embodiment
Known by Fig. 1, the external cooling mechanism of a kind of LED front directional tool, comprise that 1 is lens, 2 is lamp housing, 3 is aluminum-based circuit board, 4 is conduction estersil, and 5 is driving power, and 6 is the aluminium bonnet, 7 is aluminium bonnet base plate, 8 is aluminium bonnet gear piece, and 9 is led light source, and lamp housing 2 is provided with lens 1, the backside of aluminum-based circuit board 3 is covered with conduction estersil 4 and is located at the inner chamber of lamp housing 2, aluminium bonnet 6 is close on the aluminum-based circuit board 3, and driving power 5 is installed on the aluminium bonnet 6 again, and led light source 9 is that six 1W great power LEDs are as light source.
Being known by Fig. 2, Fig. 3, is the structural representation of aluminium bonnet.Aluminium bonnet 6 is provided with aluminium bonnet base plate 7 and aluminium bonnet gear piece 8, and the height of aluminium bonnet 6 is aluminium bonnet base plates 7 and the height sum of aluminium bonnet gear piece 8, aluminium bonnet 6 be shaped as zigzag.When design aluminium bonnet radiator structure, in order to obtain better radiating effect, at first, aluminium bonnet base plate 7 will have certain thickness, in order to resist the impact of transient thermal load.Secondly, under the prerequisite that satisfies aluminium casting die casting, should reduce aluminium bonnet gear piece 8 thickness and spacing as far as possible, increase aluminium bonnet gear piece 8 quantity and height, guarantee certain free convection, improve radiating effect.In the entire heat dissipation structure, the major function of aluminium bonnet base plate 7 is that the heat that the lamp interior light source produces is derived, and the major function of aluminium bonnet gear piece 8 is that heat is dissipated.Therefore, suitable aluminium bonnet base plate thickness and the tooth height of design is particularly important.
Being known by Fig. 4, is aluminum-based circuit board and driving power connection diagram.Because of front directional adopt be the 1W great power LED as light source, and led chip is the heating main body, so great power LED can produce a large amount of heat when work, these heats can cause the LED light efficiency to descend and LED degradation under service life.For avoiding the generation of the problems referred to above, need dispel the heat to the LED wiring board.And the coefficient of heat conduction of metallic aluminium is big, thermal resistance is little, and price is also more moderate, so selected the substrate of aluminium as wiring board when design.The heat that led chip sends will transmit by the aluminium base of wiring board, the lamp house space of considering this LED front directional is relatively more nervous, and the size of driving power 5 is bigger than normal, and lamp interior does not have enough spaces to arrange driving power, so need driving power 5 is arranged in the light fixture outside.Should guarantee the waterproof of external driving power own, anti-certain high temperature and low temperature simultaneously.When connecting power supply, LED driving power 5 drives aluminum-based circuit board 3 and keeps certain current range to light, the heat that LED produces in lighting process at first is delivered on the conduction estersil 4 by aluminum-based circuit board 3, be delivered on the aluminium bonnet 6 by conduction estersil 4 more afterwards, by the base plate on the aluminium bonnet 6 heat that produces is derived from lamp interior more afterwards, by the gear piece structure on the aluminium bonnet heat is dispersed in the air ambient at last and goes.

Claims (3)

1. external cooling mechanism of LED front directional tool, be included as lens (1), lamp housing (2), aluminum-based circuit board (3), conduction estersil (4), driving power (5), aluminium bonnet (6), aluminium bonnet base plate (7), aluminium bonnet gear piece (8), led light source (9), lamp housing (2) is provided with lens (1), and the backside of aluminum-based circuit board (3) is covered with conduction estersil (4) and is located at the inner chamber of lamp housing (2), aluminium bonnet (6) is close on the aluminum-based circuit board (3), driving power (5) is installed on the aluminium bonnet (6) again, it is characterized in that: described driving power (5) is arranged in the light fixture outside, is connected with aluminum-based circuit board (3) with lead.
2. the external cooling mechanism of a kind of LED front directional tool according to claim 1, it is characterized in that: described aluminium bonnet (6) is provided with aluminium bonnet base plate (7) and aluminium bonnet gear piece (8), the height of aluminium bonnet (6) is aluminium bonnet base plate (7) and the height sum of aluminium bonnet gear piece (8), aluminium bonnet (6) be shaped as zigzag.
3. the external cooling mechanism of a kind of LED front directional tool according to claim 1, it is characterized in that: described led light source (9) is made up of six 1W great power LEDs.
CN2013102036465A 2013-05-29 2013-05-29 External heat dissipation mechanism for LED front steering lamp CN103244932A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013102036465A CN103244932A (en) 2013-05-29 2013-05-29 External heat dissipation mechanism for LED front steering lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013102036465A CN103244932A (en) 2013-05-29 2013-05-29 External heat dissipation mechanism for LED front steering lamp

Publications (1)

Publication Number Publication Date
CN103244932A true CN103244932A (en) 2013-08-14

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CN2013102036465A CN103244932A (en) 2013-05-29 2013-05-29 External heat dissipation mechanism for LED front steering lamp

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CN (1) CN103244932A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080013316A1 (en) * 2006-07-17 2008-01-17 Kun-Yuan Chiang High power LED lamp with heat dissipation enhancement
CN201096286Y (en) * 2007-11-20 2008-08-06 王文汶 Modularized led lamp structure
CN101886774A (en) * 2010-03-04 2010-11-17 山东旭光太阳能光电有限公司 LED street lamp with adjustable light beam radiation angle
CN102628577A (en) * 2012-03-29 2012-08-08 陈志明 High-efficiency automobile light-emitting diode (LED) fog-proof lamp
JP2013073696A (en) * 2011-09-26 2013-04-22 Toshiba Lighting & Technology Corp Light source unit, light source device, and lighting fixture using light source device
CN203364069U (en) * 2013-05-29 2013-12-25 江苏文光车辆附件有限公司 External heat dissipation mechanism of LED front steering lamp

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080013316A1 (en) * 2006-07-17 2008-01-17 Kun-Yuan Chiang High power LED lamp with heat dissipation enhancement
CN201096286Y (en) * 2007-11-20 2008-08-06 王文汶 Modularized led lamp structure
CN101886774A (en) * 2010-03-04 2010-11-17 山东旭光太阳能光电有限公司 LED street lamp with adjustable light beam radiation angle
JP2013073696A (en) * 2011-09-26 2013-04-22 Toshiba Lighting & Technology Corp Light source unit, light source device, and lighting fixture using light source device
CN102628577A (en) * 2012-03-29 2012-08-08 陈志明 High-efficiency automobile light-emitting diode (LED) fog-proof lamp
CN203364069U (en) * 2013-05-29 2013-12-25 江苏文光车辆附件有限公司 External heat dissipation mechanism of LED front steering lamp

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Application publication date: 20130814