CN206073025U - A kind of LED aid-to-navigation lights radiator structure - Google Patents
A kind of LED aid-to-navigation lights radiator structure Download PDFInfo
- Publication number
- CN206073025U CN206073025U CN201621118863.XU CN201621118863U CN206073025U CN 206073025 U CN206073025 U CN 206073025U CN 201621118863 U CN201621118863 U CN 201621118863U CN 206073025 U CN206073025 U CN 206073025U
- Authority
- CN
- China
- Prior art keywords
- light fixture
- radiator
- lid
- lower cover
- heat sink
- 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.)
- Withdrawn - After Issue
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses a kind of LED aid-to-navigation lights radiator structure, including lamp outer casing and radiator, lamp outer casing includes lid and light fixture lower cover on light fixture；On light fixture, lid is provided with mounting groove, and some auxiliary mounting blocks are provided with mounting groove, aids in the fixing groove for fixed heat sink is provided between mounting blocks, and on light fixture, lid also sets up loophole, and loophole one end is connected with mounting groove；The fixed column that radiator is included heat sink body and used cooperatively with the interior fixing groove for arranging of lid on light fixture, heat sink body are connected with fixed column, are provided with containing cavity, radiating fin is provided with heat sink body in heat sink body；Described light fixture lower cover is fixedly connected with lid on light fixture；Cover on radiator and light fixture trench bottom is installed and the inner surface of lower cover is brought into close contact.This utility model is easier for installation, and the structural change main heat sink approach after improving, and reduces thermal conduction resistance, the heat that LED is distributed can be enable more quickly to derive outside light fixture, strengthen the radiating effect of light fixture.
Description
Technical field
This utility model is related to a kind of LED aid-to-navigation lights radiator structure.
Background technology
Aid-to-navigation light is installed on the positions such as airfield runway, taxiway, machine level ground, is divided into vertical and embedded two big class, is aircraft
Slide and landing provides necessary visually navaid guiding.LED aid-to-navigation lights adopt LED light source, light fixture radiating effect to directly affect lamp
Tool life-span and light efficiency.
There is very big heat dissipation problem during actual use in the LED aid-to-navigation lights used by airport.Used at present
LED lamp be that LED is welded on aluminium base using radiating mode, according to light path design scheme, aluminium base is fixed on aluminium alloy
Or on copper radiator, radiator is fixed on lamp outer casing again.The sinking path of radiator has two：First, in radiator
Outer surface is provided with some fins and distributes heat in lamp interior air, then via in aerial conduction to lamp outer casing；2nd, dissipate
The upper surface portion area of hot device is contacted with shell and is directly conducted heat on shell.The heat being scattered on lamp outer casing passes through
During outside cross-ventilation is dispersed into air or it is transmitted in soil.
Approach recited above one is confined space due to lamp interior, no cross-ventilation, and heat is from radiator to sky
Gas is arrived shell again and all can only be transmitted by heat-conducting mode, and the thermal conductivity of air is extremely low, so thermal conduction resistance is larger, and relative way
The heat conduction link that heat conducts in atmosphere is increased for footpath two, heat-sinking capability is reduced.And radiator and shell in approach two
The area of contact is less, and heat-conducting area is little, and heat-sinking capability is also limited.
In order to meet navaid demand, the power of LED aid-to-navigation lights is general all than larger, so as to radiating requirements are also than larger, because
This, improves the structure of radiator so as to improve its heat-sinking capability, and the radiating effect for strengthening LED aid-to-navigation lights is permanent for aid-to-navigation light
Using with important practical significance.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of LED with superhigh radiating ability
Aid-to-navigation light radiator structure.
The purpose of this utility model is achieved through the following technical solutions：A kind of LED aid-to-navigation lights radiator structure, including
Lamp outer casing and radiator, described lamp outer casing include lid and light fixture lower cover on light fixture；On described light fixture, lid is provided with peace
Tankage, is provided with some auxiliary mounting blocks in mounting groove, aid in the fixing groove for fixed heat sink is provided between mounting blocks,
On light fixture, lid is additionally provided with loophole, and one end of loophole is connected with mounting groove；Described radiator include heat sink body and with
The fixed column that the fixing groove arranged in covering on light fixture is used cooperatively, heat sink body are connected with fixed column, are provided with heat sink body
Containing cavity, containing cavity are used to install LED and circuit substrate, and radiating fin is provided with heat sink body；Described light fixture lower cover with
On light fixture, lid is fixedly connected；The installation trench bottom covered on the upper surface of radiator and light fixture is brought into close contact, and radiator fixed column is arrived
This component side surface of radiator bottom surface is brought into close contact with the inner surface of lower cover.
It is preferred that, cover on described auxiliary mounting blocks and light fixture and be integrally formed, fixed column with install groove bottom and/
Or auxiliary mounting blocks are brought into close contact.
It is preferred that, heat sink body is cylinder, and fixed column is four, and four fixed columns are evenly distributed on radiating master
On the side of body；Auxiliary mounting blocks are four, form one between the two neighboring auxiliary mounting blocks in four auxiliary mounting blocks
Fixing groove is used to install fixed column.
It is preferred that, described mounting groove is cylinder shape groove, and described auxiliary mounting blocks are to arrange in mounting groove
Maximum annulus uniformly separated by fixing groove after 4 parts being formed, aid in the height of mounting blocks to be equal to or less than mounting groove
Highly.
It is preferred that, both described fixed column, auxiliary mounting blocks it is highly consistent, aid in the highly little of mounting blocks
In the height of mounting groove, a part for light fixture lower cover is arranged in mounting groove, and under light fixture, cap upper surface is tight with auxiliary mounting blocks
Laminating, and exterior surface is brought into close contact with mounting groove inner surface under light fixture.
It is preferred that, radiator and setting thermal conductive material layer on lid on light fixture and/or the face that contact of light fixture lower cover with
Just the heat above radiator is made quickly to be delivered to lid and/or light fixture lower cover on light fixture.
It is preferred that, thermal conductive silicon is smeared on the face that described radiator is contacted with lid and/or light fixture lower cover on light fixture
Fat or heat-conducting cream or thermal grease or heat dissipating silicone grease radiate oily to make the heat above radiator quickly be delivered on light fixture
Lid and/or light fixture lower cover.
It is preferred that, described radiator containing cavity bottom be provided with facilitate electric wire to pass through hole, for fixing
The installing hole of circuit substrate and the location hole for circuit substrate positioning.
It is preferred that, described radiator containing cavity is in cylindrical structural, and the middle part of containing cavity arranges division board will
Containing cavity is isolated into two parts, is respectively used to fix one piece of circuit substrate.
It is preferred that, on described light fixture, lid is provided with light fixture top cap and connects hole, is arranged under described light fixture on lid
Having and the light fixture lower cover connecting hole that hole uses cooperatively being connect with light fixture top cap, on light fixture, lid passes through bolt with light fixture lower cover or screw connects
Connect.
The beneficial effects of the utility model are：This utility model changes traditional heat spreader structures, changes radiator
Fixed form on lamp outer casing so as to easier for installation, and it is closer to fit with lamp outer casing；Increase outer surface with
The contact area of lamp outer casing, increased heat-conducting area, make heat more be delivered to lamp outer casing by faster approach,
So as to strengthen radiating effect.This utility model makes heat spreader structures more reasonable, and heat conduction is evenly；Simplify which to cover outside light fixture
Fixed form；The area of the upper surface and side surface of radiator is increased, and makes which tight with lid on light fixture and light fixture lower cover
Laminating, increased heat-conducting area.Structural change after improvement main heat sink approach, reduces thermal conduction resistance, distribute can LED
Heat more quickly can derive outside light fixture, strengthen light fixture radiating effect.
Description of the drawings
Fig. 1 is the structural representation covered on light fixture described in the utility model；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is the structural representation of light fixture lower cover described in the utility model；
Fig. 4 is LED aid-to-navigation lights entirety fractionation structural representation；
Fig. 5 is the fractionation structural representation of this utility model radiator and upper lid；
Fig. 6 is the assembly structure diagram of this utility model radiator and upper lid；
Fig. 7 is the fractionation structural representation of this utility model radiator and lower cover；
Fig. 8 is the assembly structure diagram of this utility model radiator and lower cover；
Fig. 9 is integral assembling structure schematic diagram of the present utility model；
In figure, 1- fixed columns, 2- radiator upper surfaces, 3- through holes, 4- installing holes, 5- location holes, 6- heat sink sides surface,
7- radiating fins, 8- fixing grooves, 9- mounting grooves, 10- light fixture top caps connect hole, 11- light fixture lower cover connecting holes, 12- light fixture lower covers
Inner surface, cap upper surface under 13- light fixtures.
Specific embodiment
The technical solution of the utility model, but protection domain of the present utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to described below.
As shown in Fig. 1～Fig. 9, a kind of LED aid-to-navigation lights radiator structure, including lamp outer casing and radiator, described light fixture
Shell includes lid and light fixture lower cover on light fixture；On described light fixture, lid is provided with mounting groove 9, is provided with some auxiliary in mounting groove 9
Mounting blocks are helped, aid between mounting blocks, being provided with the fixing groove 8 for fixed heat sink, lid is additionally provided with loophole on light fixture,
One end of loophole is connected with mounting groove 9；Described radiator includes heat sink body and the fixing groove 8 with setting in lid on light fixture
The fixed column 1 for using cooperatively, heat sink body are connected with fixed column 1, and containing cavity is provided with heat sink body, and containing cavity is used to install
LED and circuit substrate, are provided with radiating fin 7 on heat sink body；Described light fixture lower cover is fixedly connected with lid on light fixture；Radiating
9 bottom of mounting groove covered on the upper surface of device and light fixture is brought into close contact, this part side of radiator fixed column 1 to radiator bottom surface
Surface is brought into close contact with the inner surface of lower cover.
Preferably, cover on described auxiliary mounting blocks and light fixture and be integrally formed, fixed column 1 and 9 bottom surface of mounting groove and/or auxiliary
Mounting blocks are helped to be brought into close contact.
Preferably, heat sink body is cylinder, and fixed column 1 is four, and four fixed columns 1 are evenly distributed on heat sink body
On side；Auxiliary mounting blocks are four, form a fixation between the two neighboring auxiliary mounting blocks in four auxiliary mounting blocks
Groove 8 is used to install fixed column 1.
Preferably, described mounting groove 9 is cylinder shape groove, and described auxiliary mounting blocks are to arrange most in mounting groove 9
4 parts that large circle is formed after uniformly being separated by fixing groove 8, aid in the height of mounting blocks to be equal to or less than the height of mounting groove 9
Degree.
Preferably, both described fixed column 1, auxiliary mounting blocks it is highly consistent, aid in the height of mounting blocks less than peace
The height of tankage 9, a part for light fixture lower cover are arranged in mounting groove 9, and under light fixture, cap upper surface 13 is tight with auxiliary mounting blocks
Laminating, and exterior surface is brought into close contact with 9 inner surface of mounting groove under light fixture.
Preferably, thermal conductive material layer is set on the face that radiator is contacted with lid and/or light fixture lower cover on light fixture to make to dissipate
Heat above hot device is quickly delivered to lid and/or light fixture lower cover on light fixture.
Preferably, heat-conducting silicone grease is smeared on the face that described radiator is contacted with lid and/or light fixture lower cover on light fixture or lead
Hot cream or thermal grease or heat dissipating silicone grease or radiating oil so as to make the heat above radiator be quickly delivered on light fixture lid and/or
Light fixture lower cover.
Preferably, described radiator containing cavity bottom be provided with facilitate electric wire to pass through hole 3, for permanent circuit base
The installing hole 4 of plate and the location hole 5 for circuit substrate positioning.
Preferably, described radiator containing cavity is in cylindrical structural, and the middle part of containing cavity arranges division board by containing cavity
Two parts are isolated into, are respectively used to fix one piece of circuit substrate.
Preferably, on described light fixture, lid is provided with light fixture top cap and connects hole 10 (can be screwed hole), under described light fixture
Cover to be provided with and connect the light fixture lower cover connecting hole 11 (can be screwed hole) that hole 10 uses cooperatively with light fixture top cap, on light fixture lid with
Light fixture lower cover passes through bolt or mode connects for screw.
Preferably, circuit of the present utility model adopts aluminium material substantially, and on light fixture, lid, light fixture lower cover and radiator are adopted
Copper material.
Preferably, the radius of the radius=circle c of the radius+0.5mm of circle a～2mm=circle b；The half of the radius=circle e of circle d
Footpath+0.5mm～2mm, wherein, circle a justifies for 6 section of heat sink side surface, and circle b is the interior of the maximum annulus that auxiliary mounting blocks are formed
Wall section is justified, and circle c is that 12 section of interior surface is justified under light fixture, and circle d justifies for the section of 9 side wall of mounting groove, and circle e is for outside light fixture lower cover
The maximum section circle in surface；Described 0.5mm～2mm represents the arbitrary value (including end points) between 0.5mm～2mm.
This utility model is a kind of superpower LED aid-to-navigation light radiator structures of heat-sinking capability.Inner concave (the mounting groove of radiator
9) disc is adopted, increased the area of upper surface；Radiator side is the face of cylinder, increased the area of side surface；Radiator top
Portion is formed around fixed column 1, is fully engaged against with the fixing groove 8 of upper lid, as shown in Figure 5, then by lower cover lid, with lower cover
Annulus upper surface withstands fixed column 1 and is fixed in fixing groove 8, then lower cover is passed through screwed hole, is connected with upper lid
Fixed, radiator no longer needs to fix with upper lid by screw；The upper surface of radiator and upper lid inner concave, the side table of radiator
Face is brought into close contact with the inner surface of lower cover, smears heat conductive silica gel in spreader surface during installation.
Calculate analysis：
In from radiator lower surface to light fixture, air can be reduced in the confined space to the diabatic process of light fixture lower cover again
Heat transfer free convection.This be flow and exchange heat form it is all considerably complicated-class situation, be reduced in engineering by " heat conduction "
Form is processing, and thus introduces the concept of equivalent heat conductivity.In interlayer, the flowing of fluid, depends primarily on thickness of interlayer
δ is characterized the Gr numbers of length
In formula, α=1/Tm (K-1) is the coefficient of cubical expansion；In formula, temperature unit is K.
It is assumed that bottom radiator temperature is 100 DEG C, the temperature of cast iron light fixture enclosing cover is 50 DEG C, radiator lower surface and cast iron
Between light fixture lower cover, distance is 3cm.Then characteristic temperature tm=75 DEG C, the kinematic viscosity ν=20.5 × 10-6m2/ of air at a temperature of this
S, λ=3.005 × 10-2W/ (mK), Pr=0.693.Gr can be obtained by formula (1)δ=90463.Work as Grδ=7 × 103～3.2 ×
When 105, nusselt number Nuδ=0.212 (GrδPr)1/4=3.35, equivalent thermal conductivity λe=Nuδλ=0.1W/ (mK).
Radiator material pyrite temperature thermal conductivity at 100 DEG C is 131W/ (mK), and temperature thermal conductivity at 50 DEG C is
143W/ (mK), inside radiator, average thermal conductivity takes λCu=137W/ (mK).What radiator upper surface 2 and side surface were smeared
Heat conductive silica gel silver-colored silicone grease, its thermal conductivity λSi=9W/ (mK).
2 exradius of radiator upper surface is 5cm, and inner circle radius are 3cm, the high 3cm of side surface, and 7 thickness of radiating fin is
5mm.When by radiator lower surface, heat is delivered to that air is delivered to lamp outer casing again in light fixture, thermal conduction resistanceHeat conduction amountWhen heat passes through heat sink side surface 6
When being delivered to lamp outer casing, it is cylindrical wall heat conduction inside radiator, thermal conduction resistance
Inner wall temperature is lower than radiator bottom temp, and mean temperature takes 70 DEG C, heat conduction amountWhen heat is by dissipating
When hot device upper surface 2 is delivered to lamp outer casing, thermal conduction resistanceLower surface mean temperature
75 DEG C are taken, heat conduction amount
When heat is delivered to that air is delivered to lamp outer casing again in light fixture by radiator lower surface, heat conduction amount is only
1.31W, and pass through heat sink side surface 6 and heat conduction amount can reach 284W and 833W when upper surface is delivered to lamp outer casing.It can be seen that
Radiator mainly passes through upper surface and side surface radiates, and has reached the purpose that this utility model changes main heat sink approach.And lead to
The heat conduction amount for crossing side surface is 3 times of upper surface heat conduction amount, has reached this utility model and has been led by changing structure increase side surface
Hot area is so as to strengthening the purpose of heat conduction.This radiator utility model can enable the heat that LED is distributed more quickly derive
Outside light fixture, strengthen the radiating effect of light fixture.
Preferred embodiment of the present utility model is the foregoing is only, not to limit this utility model, should be referred to
Go out, all any modification, equivalent and improvement made within spirit of the present utility model and principle etc. all should be included
Within protection domain of the present utility model.
Claims (10)
1. a kind of LED aid-to-navigation lights radiator structure, it is characterised in that：It includes lamp outer casing and radiator, described lamp outer casing
Including lid and light fixture lower cover on light fixture；On described light fixture, lid is provided with mounting groove, is provided with some auxiliary and installs in mounting groove
Block, aids in the fixing groove for fixed heat sink is provided between mounting blocks, and on light fixture, lid is additionally provided with loophole, loophole
One end is connected with mounting groove；Described radiator is included heat sink body and is used cooperatively with the fixing groove that arranges in lid on light fixture
Fixed column, heat sink body are connected with fixed column, and containing cavity is provided with heat sink body, and containing cavity is used to install LED and circuit base
Plate, is provided with radiating fin on heat sink body；Described light fixture lower cover is fixedly connected with lid on light fixture；The upper surface of radiator with
The installation trench bottom covered on light fixture is brought into close contact, and this component side surface of radiator fixed column to radiator bottom surface is interior with lower cover
Surface is brought into close contact.
2. a kind of LED aid-to-navigation lights radiator structure according to claim 1, it is characterised in that：Described auxiliary mounting blocks with
On light fixture, lid is integrally formed, and fixed column is brought into close contact with installation groove bottom and/or auxiliary mounting blocks.
3. a kind of LED aid-to-navigation lights radiator structure according to claim 1 and 2, it is characterised in that：Heat sink body is cylinder
Body,
Fixed column is four, and four fixed columns are evenly distributed on the side of heat sink body；Auxiliary mounting blocks are four, and four auxiliary
A fixing groove is formed between the two neighboring auxiliary mounting blocks helped in mounting blocks to be used to install fixed column.
4. a kind of LED aid-to-navigation lights radiator structure according to claim 3, it is characterised in that：Described mounting groove is cylinder
Connected in star, described auxiliary mounting blocks are 4 portions formed after the maximum annulus arranged in mounting groove is uniformly separated by fixing groove
Point, aid in the height of mounting blocks to be equal to or less than the height of mounting groove.
5. a kind of LED aid-to-navigation lights radiator structure according to claim 4, it is characterised in that：Described fixed column, auxiliary peace
The highly consistent of both blocks is filled, aids in the height of mounting blocks less than the height of mounting groove, a part for light fixture lower cover is arranged on peace
In tankage, under light fixture, cap upper surface is brought into close contact with auxiliary mounting blocks, and exterior surface is tight with mounting groove inner surface under light fixture
Laminating.
6. a kind of LED aid-to-navigation lights radiator structure according to claim 1 and 2, it is characterised in that：Cover on radiator and light fixture
And/or thermal conductive material layer is set on the face of light fixture lower cover contact to make the heat above radiator quickly be delivered on light fixture
Lid and/or light fixture lower cover.
7. a kind of LED aid-to-navigation lights radiator structure according to claim 6, it is characterised in that：Described radiator and light fixture
It is upper lid and/or light fixture lower cover contact face on smear heat-conducting silicone grease or heat-conducting cream or thermal grease or heat dissipating silicone grease or radiating oil so as to
The heat above radiator is made quickly to be delivered to lid and/or light fixture lower cover on light fixture.
8. a kind of LED aid-to-navigation lights radiator structure according to claim 1, it is characterised in that：Described radiator containing cavity
Bottom is provided with through hole, the installing hole for permanent circuit substrate and the determining for circuit substrate positioning for facilitating electric wire to pass
Position hole.
9. a kind of LED aid-to-navigation lights radiator structure according to claim 1 or 8, it is characterised in that：Described radiator is housed
Chamber is in cylindrical structural, and the middle part of containing cavity arranges division board and containing cavity is isolated into two parts, be respectively used to fix one piece it is electric
Base board.
10. a kind of LED aid-to-navigation lights radiator structure according to claim 1 or 2 or 4 or 5 or 7 or 8, it is characterised in that：Institute
On the light fixture stated, lid is provided with light fixture top cap and connects hole, and to be provided with connect hole with light fixture top cap and coordinate under described light fixture on lid makes
Light fixture lower cover connecting hole, on light fixture, lid passes through bolt or mode connects for screw with light fixture lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118863.XU CN206073025U (en) | 2016-10-13 | 2016-10-13 | A kind of LED aid-to-navigation lights radiator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621118863.XU CN206073025U (en) | 2016-10-13 | 2016-10-13 | A kind of LED aid-to-navigation lights radiator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206073025U true CN206073025U (en) | 2017-04-05 |
Family
ID=58442341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621118863.XU Withdrawn - After Issue CN206073025U (en) | 2016-10-13 | 2016-10-13 | A kind of LED aid-to-navigation lights radiator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206073025U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247293A (en) * | 2016-10-13 | 2016-12-21 | 西南交通大学 | A kind of LED aid-to-navigation light radiator structure |
-
2016
- 2016-10-13 CN CN201621118863.XU patent/CN206073025U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247293A (en) * | 2016-10-13 | 2016-12-21 | 西南交通大学 | A kind of LED aid-to-navigation light radiator structure |
| CN106247293B (en) * | 2016-10-13 | 2022-10-11 | 西南交通大学 | Heat dissipation structure of LED navigation aid lamp |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20221011 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20221011 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |