CN204042809U

CN204042809U - LED radiator

Info

Publication number: CN204042809U
Application number: CN201420496048.1U
Authority: CN
Inventors: 韩栋梁
Original assignee: Hangzhou Sang Di Lighting Electric Appliance Co Ltd
Current assignee: Hangzhou Sang Di Lighting Electric Appliance Co Ltd
Priority date: 2014-08-30
Filing date: 2014-08-30
Publication date: 2014-12-24
Anticipated expiration: 2024-08-30

Abstract

The utility model discloses a kind of LED radiator, comprise base, base outer surface is along the circumferential direction evenly provided with some radiating fins, fin, be formed along datum axle to through air-vent between radiating fin and base, the length of radiating fin is reduced to circuit cavity direction gradually by installation cavity, and fin distributes along radiating fin hypotenuse.By the setting of radiating fin and fin, make in radiator, to form the good air-vent of an air flow property, and fin is arranged on radiating fin respect thereto opposite side, increase the outermost contact area of radiator integral and surface, improve integral heat sink effect, fin is obliquely installed simultaneously, the area of fin can not only be increased in same space, the heat that fin distributes can also be made in uphill process can not to affect the heat radiation of top fin, radiating effect is maximized.

Description

LED radiator

Technical field

The utility model relates to field of LED illumination, is specifically related to a kind of LED radiator.

Background technology

LED light source as a kind of new light sources of broad development, due to it have that energy consumption is low, the advantage of good illumination effect and long service life, become the light source that current people extensively select when throwing light on.But in prior art, LED, for the utilization of the energy, only has 30%-40% to be converted into luminous energy, the Conversion of Energy of the overwhelming majority is heat energy.Along with the development of LED illumination technology, the research for LED lamp also gets more and more, and LED lamp is concentrated due to its heat, easily makes the temperature of LED chip sharply increase, and can produce light decay very soon, even damage LED chip.Therefore, in the use of LED, LED radiator has become to determine LED lamp quality and the key factor in service life.

Chinese patent 201320695473.9 discloses one " LED radiator ", comprise heat dissipation plate, this heat dissipation plate comprises radiating surface and thermal conductive surface, thermal conductive surface is provided with some thermal columns, each thermal column is provided with some heat radiation fins, and at least one thermal column is provided with pass through aperture, this through hole arranges along thermal column bearing of trend and runs through heat dissipation plate, by running through the perforation of heat dissipation plate, can make to form cross-ventilation in perforation, increase radiating effect, the heat radiation fin that thermal column is arranged effectively can increase the area of dissipation of radiator, improve overall radiating effect.But this radiator, through hole is provided with in thermal column, only there is air circulation in thermal column inside, integrated air flow effect is bad, the area of dissipation increased by heat radiation fin, and entirety is still positioned at radiator inside, make heat comparatively concentrated, the peripheral area of dissipation of radiating effect the best is constant, makes the heat of radiator integral concentrate on inside, integral heat sink weak effect.

Chinese patent 201410062570.3 discloses " a kind of LED lamp radiator ", comprise cylindrical shell, the main fin being arranged at barrel outer surface radially, the heat-conducting plate be arranged in cylindrical shell, the luminescence chip of LED is arranged on described heat-conducting plate, described main fin outer end is provided with secondary fin perpendicular to main fin, and described secondary fin lateral surface is provided with some radiation tooths.Described main fin and described secondary fin are T set up of character patt ern.This set, heat distributes mainly through the radiation between secondary fin and air, single secondary fin, in vertically distribution, during heat spreader, adds hot-air, along secondary fin when hot-air rises, the air themperature of secondary fin upper contact is higher, affects integral heat sink effect, and secondary fin is connected with cylindrical shell by main fin, easily be out of shape when colliding, affect proper heat reduction.

Utility model content

For the deficiencies in the prior art, the utility model provides a kind of LED radiator, radiator outer surface is circumferentially evenly distributed with some radiating fins, the opposite side of radiating fin opposite heat sink is provided with fin, the contact area of radiator outermost and air is increased by fin, be formed with through hole between radiating surface and radiator body simultaneously, increase the mobility of air, improve integral heat sink effect.

For achieving the above object, the utility model provides following technical scheme: a kind of LED radiator, comprise columned base, partition is provided with in base, base is separated into installation cavity and circuit chamber by partition, base outer surface is along the circumferential direction evenly provided with some radiating fins, the opposite side of radiating fin respect thereto is provided with fin, fin, form datum axle between radiating fin and base to through air-vent, radiating fin lateral wall is reduced to circuit cavity direction to the distance of base gradually by installation cavity, and fin distributes along radiating fin hypotenuse.

By adopting technique scheme, by partition, columned base is separated into the circuit chamber of installation cavity and control circuit chip etc. for installing LED chip, and the side inwall in partition opposing circuit chamber is provided with limited block, the circuit of control LED chip can be made to be arranged on accurately in LED radiator by limited block, avoid the damage that installation site mistake causes, base outer surface is along the circumferential direction evenly provided with some radiating fins, and radiating fin is provided with fin away from the side of base, by the setting of fin, increase the contact area of LED radiator outermost and air, because radiator outside air mobility is strong, therefore the setting of fin, make the outermost surface area of radiator in the maximized utilization of LED radiator energy, the radiating efficiency of radiator is maximized, simultaneously, fin, the air-vent for air flowing is formed between radiating fin and base, and air-vent is along the through whole radiator of sidewall of base, when radiator internal temperature is raised, hot-air rises, cold air enters in radiator bottom air-vent, form cross-ventilation, strengthen radiating effect, radiating fin tilts to base by installation cavity to circuit cavity direction away from one end of base, fin distributes along radiating fin hypotenuse, when fin and air form heat radiation, the high temperature air produced vertically rises, because fin distributes along radiating fin hypotenuse, the high-temperature gas that fin lower end produces can not against fin upper part, the impact of heat is produced when making the fin of upper part can not be subject to lower end heat radiation, and the fin of tilt distribution can increase the contact area of fin and air in limited space, improve radiator integral radiating effect.

The utility model is set to further, and fin is symmetricly set in radiating fin both sides.

By adopting technique scheme, the heat produced time luminous in LED chip is passed on radiating fin by base, be passed on fin by radiating fin again, dispelled the heat by the radiation of fin and air, fin is symmetrically distributed in radiating fin both sides, the heat on radiating fin can be made to be passed to fast on fin, to increase radiating efficiency.

The utility model is set to further, and fin cross section is the circular arc concentric with base.

By adopting technique scheme, fin cross section is circular arc, and is connected on equally distributed radiating fin, makes the outer surface entirety of radiator rounded, and the area of dissipation contacted with air is large, and radiating efficiency is high, is convenient to install, transport simultaneously.

The utility model is set to further, and radiating fin outer circumference is also provided with reinforcement, and reinforcement is circular and arranges with base axis is concentric.

By adopting technique scheme, radiating fin is provided with reinforcement, by the setting of reinforcement, improve the structural strength of radiating fin, reinforcement is arranged on one end that radiating fin is mounted opposite chamber, and it is concentric with the axis of base, radiating fin tilts to base by installation cavity to circuit cavity direction away from the side of base, therefore reinforcement is arranged on radiating fin and is mounted opposite on one end of seat, then the diameter of reinforcement reaches maximum, certain protective effect can be played to radiating fin outermost simultaneously, radiating fin collides and is out of shape unavoidably, and radiator is according to the difference of superficial air flowing property, diverse location fin radiating effect can be caused different, therefore may in the fin surface of some air flow property differences, fin bulk temperature is higher, by reinforcement by fin, after radiating fin connects, the uneven heat distributed can through reinforcement, be passed on the good fin of superficial air flowing property, improve integral heat sink efficiency.

The utility model is set to further, and base, partition, radiating fin, fin are each made of aluminum with reinforcement and one is connected.

By adopting technique scheme, adopt aluminum material, price is low, thermal conductivity good, quality is slim and graceful, easy to process, and the setting that one connects, processing technology is simple, and structural strength is high, good heat dissipation effect.

Compared with prior art, by the setting of radiating fin and fin, make in radiator, to form the good air-vent of an air flow property, simultaneously, fin is arranged on radiating fin away from the side of base, and arrange along radiating fin hypotenuse, effectively can not only increase the contact area of radiator and outermost part, the heat that fin gives out can also be made to influence each other, improve integral heat sink effect, on radiating fin, be also provided with reinforcement simultaneously, radiator integral structural strength can not only be strengthened, heat on radiator can also be evenly distributed to each fin by reinforcement, radiating effect is maximized.

Accompanying drawing explanation

Fig. 1 is the utility model LED radiator perspective view;

Fig. 2 is LED radiator front view;

Fig. 3 is the attached view of LED radiator;

Fig. 4 is that LED radiator section is attempted.

Reference numeral: 1, base; 2, partition; 3, radiating fin; 4, fin; 5, reinforcement; 6, air-vent; 11, installation cavity; 12, circuit chamber; 21, limited block; 22, screw; 23, circular hole.

detailed description of the invention

Referring to figs. 1 through Fig. 4, the utility model LED radiator embodiment is described further.

A kind of LED radiator, comprise columned base 1, partition 2 is provided with in base 1, by partition 2, columned base 1 is separated into the circuit chamber 12 of installation cavity 11 and control circuit chip etc. for installing LED chip, and the side inwall in partition 2 opposing circuit chamber 12 is provided with limited block 21, the circuit of control LED chip can be made to be arranged on accurately in LED radiator by limited block 21, avoid the damage that installation site mistake causes, partition 2 center offers the circular hole 23 that supply lines passes, on the relative position of partition 2 both sides, be provided with the screw 22 for fixed L ED chip, electric wire is connected in LED chip after being fed through circular hole 23, passing through bolt, LED chip is fixed on the screw 22 of base 1, realize the connection between chip and radiator, heat radiation is stablized.

Base 1 outer surface is along the circumferential direction evenly provided with some radiating fins 3, preferably, radiating fin 3 is provided with 10 roads, angle between adjacent twice radiator is 36 °, and radiating fin 3 is arranged along base 1 radial direction, the setting of 10 road radiating fins 3, on energy maximum using, dispel the heat in radiator outer surface space, the side of radiating fin 3 away from base 1 is provided with fin 4, produce when LED radiator heat is mainly luminous by the LED chip of inside, therefore the position that LED radiator radiating effect is best is exactly radiator outermost layer part, by the setting of fin 4, increase the contact area of LED radiator outermost part and air, fin 4 is symmetricly set in radiating fin 3 both sides, make the heat on radiating fin 3 can be passed to fin 4 surface fast, the symmetrical transmission accelerating heat, compared to one-sided distribution, heat transmission is faster, radiating effect is better.Simultaneously, fin 4, be formed between radiating fin 3 and base 1 for air flowing air-vent 6, and air-vent 6 is along the through whole radiator of sidewall of base 1, when radiator internal temperature is raised, hot-air rises, and cold air enters in radiator bottom air-vent 6, good cross-ventilation is formed in radiator inside, by the flowing of air, the radiating effect of radiator inner space is strengthened, thus improve integral heat sink efficiency.

Radiating fin 3 tilts to base 1 by direction, installation cavity 11 to circuit chamber 12 away from one end of base 1, preferably, the side of inclination is arranged to arc-shaped, and the one end in arc-shaped opposing circuit chamber 12 is connected on base 1, fin 4 distributes along radiating fin 3 hypotenuse, and fin 4 setting is no more than 2/3rds of arc-shaped hypotenuse, radiator top is made to have larger opening, inner air flowing property is stronger, simultaneously, the setting of tilting, when can make heat radiation on fin 4 to air, fin 4 can not be against in hot-air uphill process rise, hot-air long-living when avoiding bottom heat radiation rises along fin 4 surface, affect radiating effect not on fin 4, simultaneously, the setting of tilting can also in limited space, increase the contact area between fin 4 and air, effective raising integral heat sink effect.

Further, fin 4 cross section is the circular arc concentric with base 1, this cross section is the cross section perpendicular with base 1 axial direction, on the surface, the cross sectional shape of base 1 is circular, the cross section of fin 4 is the circular arc concentric with base 1, and there is space between abutting fins 4, preferably, central angle corresponding to every sheet fin 4 is 27 °, between abutting fins 4, the angle in space is 9 °, this set can in the confined space, the while of making fin 4 area maximized, make to be formed with cross-ventilation between fin 4 inside and outside by the angle in space between fin 4, integral heat sink effect is better, the fin 4 of arc-shaped, make radiator outer surface mellow and full, convenient transport, install.

In order to avoid the distortion that fin 4 and radiating fin 3 occur because of collision, radiating fin 3 is also provided with reinforcement 5, reinforcement 5 is arranged with base 1 axis is concentric, preferably, reinforcement 5 is arranged on radiating fin 3 and is mounted opposite on one end of seat.Because radiating fin 3 is in arc-shaped, and the one end being mounted opposite seat is protruded, reinforcement 5 can effectively protect radiating fin 3, radiating fin 3 deforms unavoidably, one end of fin 4 is connected on reinforcement 5 simultaneously, can not only effectively strengthen fin 4, the structural strength of radiating fin 3, simultaneously also by reinforcement 5, time fin 4 on heat mutually transmit, when spreader surface is free air-flow to move, fin 4 radiating effect of diverse location is different, part heat sink 4 can be made to dispel the heat slower, temperature drift, can also effectively the temperature on the fin 4 of superficial air flowing property difference be passed on the strong fin of air flow property 4 by the settings of reinforcement 5, improve overall radiating effect.

Further, base 1, partition 2, radiating fin 3, fin 4 are each made of aluminum with reinforcement 5 and one is connected, overall structural strength can not only be improved, the setting that one connects, can also weld seam be reduced, make the heat trnasfer between all parts even, dispel the heat faster, processing technology is few simultaneously, is more convenient for producing.And aluminum material price is low, thermal conductivity good, quality is slim and graceful, easy to process, can make that processing is simpler, radiating effect is better.

The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the utility model away from the some improvements and modifications under prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a LED radiator, comprise columned base, partition is provided with in described base, base is separated into installation cavity and circuit chamber by described partition, described base outer surface is along the circumferential direction evenly provided with some radiating fins, it is characterized in that: the opposite side of described radiating fin respect thereto is provided with fin, described fin, be formed along datum axle to through air-vent between radiating fin and base, described radiating fin lateral wall is reduced to circuit cavity direction to the distance of base gradually by installation cavity, and described fin distributes along radiating fin hypotenuse.

2. LED radiator according to claim 1, is characterized in that: described fin is symmetricly set in radiating fin both sides.

3. LED radiator according to claim 2, is characterized in that: described fin cross section is the circular arc concentric with base.

4. LED radiator according to claim 1, is characterized in that: described radiating fin outer circumference is also provided with reinforcement, and described reinforcement is circular and arranges with base axis is concentric.

5. LED radiator according to claim 4, is characterized in that: described base, partition, radiating fin, fin are each made of aluminum with reinforcement and one is connected.