CN202419599U

CN202419599U - Radiation component

Info

Publication number: CN202419599U
Application number: CN201120573704XU
Authority: CN
Inventors: 曹智多
Original assignee: Guangdong Taizhuo Optoelectronics Technology Co Ltd
Current assignee: Guangdong Taizhuo Optoelectronics Technology Co Ltd
Priority date: 2011-12-30
Filing date: 2011-12-30
Publication date: 2012-09-05
Anticipated expiration: 2021-12-30

Abstract

The utility model discloses a radiation component, which is used for radiation of LED lamps and comprises a radiation plate with a heat conducting face and a heat dissipating face. An LED lamp is mounted on the heat conducting face, the heat dissipating face extends upward to form a plurality of heat dissipating columns in hollow tubular structures, the upper ends of the heat dissipating columns are communicated with the outside, and the side walls of the heat dissipating columns area provided with a plurality of vents. The radiation component has the advantages of simple structure and effectiveness in radiation.

Description

Radiating subassembly

Technical field

The utility model relates to a kind of heat dissipation equipment, relate in particular to a kind of simple in structure, the radiating subassembly of good heat dissipation effect.

Background technology

Street lamp is the important component part of city illumination, and traditional street lamp often adopts high-pressure mercury lamp, and high-pressure mercury lamp 360 degree are luminous, and the shortcoming that light loss is big has caused the huge waste of the energy.Current, global environment is going from bad to worse, and each state is all at the development clean energy resource.And along with the rapid growth of national economy, China's energy supply and demand contradiction is outstanding day by day, the coming into existence situation of critical shortage of supply of electric power, and energy-conservation is present institute urgent problem.Therefore, development of new is efficient, energy-conservation, the life-span is long, colour rendering index is high, the LED street lamp of environmental protection has a crucial meaning to city illumination is energy-conservation.The LED street lamp is a semi-conductor lighting lamp.It is the efficient solid state light emitter that the faint electric energy of usefulness that a kind of based semiconductor PN junction forms just can be luminous, characteristics such as have environment friendly and pollution-free, little power consumption, light efficiency is high, the life-span is long, and therefore, the LED street lamp will become the optimal selection that roadway illumination and energy saving is transformed.

Because the LED lamp is installed in obturator inside, a large amount of heats that long-time shinny meeting produces in lamp body, if untimely discharge, therefore LED lamp inside produce high temperature, the as easy as rolling off a log inner member that burns out, therefore, the LED lamp need be provided with a radiating subassembly and dispel the heat.Mostly existing LED road lamp cooling technology generally is the heat-conducting plate mode, uses a slice copper coin usually, in fact is temperature-uniforming plate, falls the thermal source samming; Also have finned to dispel the heat, the contact area of fin and air is less, and it is unsatisfactory to dispel the heat, if increase fin, though radiating effect improves, still therefore can increase the weight of street lamp, easily road is produced potential safety hazard; In addition, also have through installing radiator fan additional and dispel the heat, but its complex structure, reliability is low, and cost is high, is unfavorable for extensive employing.

Based on above-mentioned deficiency, therefore, need be a kind of simple in structure, the radiating subassembly of good heat dissipation effect.

The utility model content

It is a kind of simple in structure that the purpose of the utility model is to provide, the radiating subassembly of good heat dissipation effect.

To achieve these goals, the utility model provides a kind of radiating subassembly, and the LED lamp is dispelled the heat; Comprise heat sink; Said heat sink has thermal conductive surface and radiating surface, and said thermal conductive surface is installed said LED lamp, and said radiating surface extends upward out some thermal columns; Said thermal column is hollow tubular structure and upper end and external communications, and the sidewall of said thermal column offers some ventilative mouthful.

Preferably, said thermal column is cylindrical.

Preferably, said thermal column is conical.

Preferably, said ventilative mouthful of slit for offering along said thermal column length direction.Through offering said slit, the said external world and said thermal column inside can be communicated with, convenient cooling air gets in the said thermal column it is cooled off.

Particularly, said slit quantity is two, and be positioned at said thermal column each other over against both sides.Through offering the said slit of twice extraneous cooling air can promptly be got in the said thermal column, thereby reach quick cooling.

Preferably, the edge of said heat sink thermal conductive surface offers capillary groove, and the ccontaining water proof rubber circle of said capillary groove can prevent behind the ccontaining water proof rubber circle of said capillary groove that moisture from getting into and contacting with the LED lamp from the installation slit of said heat sink.Form the inner space that holds said LED lamp owing to said heat sink cooperates with lampshade, can produce the space in the junction of said heat sink and lampshade, moisture content is easy to get into the inner space through these spaces; Thereby influence the service life of LED lamp; Therefore, said capillary groove is set, makes capillary groove hold a water proof rubber circle; Can stop effectively that moisture content gets into, and prolongs the service life of LED lamp.

Because the utility model is provided with some thermal columns on the radiating surface of said heat sink, and said thermal column is arranged to hollow tubular structure, thereby make the contact area that increases with air, and then strengthen radiating effect; And said thermal column upper end and external communications, sidewall are offered said ventilative mouthful, make extraneous through ventilative mouthful and internal communication, when heat sink dispels the heat; Said thermal column internal temperature is high, and gas rises, and external temperature is low, and gas sinks; Thereby formation cross-ventilation, heat rise with gas and shed, and the cooling air constantly gets into through ventilative mouthful, thereby cooling constantly; Reach the purpose of fast cooling, simple in structure, good heat dissipation effect.

Description of drawings

Fig. 1 is the structural representation of the radiating subassembly of the utility model embodiment one.

Fig. 2 is another structural representation of radiating subassembly among Fig. 1.

Fig. 3 is the view when thermal column dispels the heat among the utility model embodiment one.

Fig. 4 is the structural representation of the radiating subassembly of the utility model embodiment two.

The specific embodiment

Like Fig. 1 and shown in Figure 2, the radiating subassembly 100 for the utility model embodiment one comprises heat sink 1; Said heat sink 1 has thermal conductive surface 1a and radiating surface 1b, and said thermal conductive surface 1a is equipped with LED lamp (not shown), and said radiating surface 1b extends upward out some thermal columns 2; Said thermal column 2 is arranged in array; Every thermal column 2 is all cylindrical, and said thermal column 2 is hollow tubular structure and upper end and external communications, and the sidewall of said thermal column 2 offers some ventilative mouthful 21.

Particularly; Said ventilative mouthful 21 can be circular hole, also can be the slit of strip, said ventilative mouthful 21 slit 21 for offering along said thermal column 2 length directions of present embodiment; Said slit 21 has twice, lay respectively at said thermal column 2 each other over against both sides.The lower end of said thermal column 2 is offered in said slit 21 from the upper end of said thermal column 2, said thermal column 2 is divided into two semi-circular structure.Through offering the said slit 21 of twice extraneous cooling air can promptly be carried out in the said thermal column 2, thereby reach quick cooling.

The edge of said heat sink 1 thermal conductive surface 1a offers capillary groove 11; Said capillary groove 11 ccontaining water proof rubber circle (not shown) can prevent behind the said capillary groove 11 ccontaining water proof rubber circles that moisture from getting into and contacting with the LED lamp from the installation slit of said heat sink 1.Form the inner space that holds said LED lamp owing to said heat sink 1 cooperates with lampshade, can produce the space in the junction of said heat sink 1 and lampshade, moisture is easy to get into the inner space through these spaces; Thereby influence the service life of LED lamp; Therefore, said capillary groove 11 is set, makes said capillary groove 11 hold a water proof rubber circle; Can stop effectively that moisture gets into, and prolongs the service life of LED lamp.

As shown in Figure 3, during heat radiation, the heat that the LED lamp produces is delivered to said radiating surface 1b through said thermal conductive surface 1a; Said radiating surface 1b is delivered to said thermal column 2 with heat again, and the madial wall of said thermal column 2 contacts with air, thereby with the air heat of inside; Rise after the inner air heat and make the thermal column lower bottom part and the external world produce draught head; Therefore, extraneous cold air flows into said thermal column 2 inside fast through said slit 21, thereby is the additional air in inside of said thermal column 2; Cold air is heated after getting into said thermal column 2 inside; Continue to rise and take away heat, thereby make said thermal column 2 inner and air outside generation convection current, and then constantly dispel the heat.

As shown in Figure 4, among the figure radiating subassembly 200 of the utility model embodiment two, except that said thermal column 3, other parts are identical with the structure of embodiment one, no longer are repeated in this description at this.Said thermal column 3 is conical structure; Said thermal column 3 also is hollow structure and upper end and external communications; Offer said slit 31 together at the sidewall of said thermal column,, make cool exterior air can get into said thermal column 3 inside through this slit 31; Thereby make said thermal column 3 inner air and outer air form convection current, and then constantly to take away heat be the heat radiation of LED lamp.Said thermal column 3 is arranged to conical structure when reaching radiating effect, helps saving heat sink material, thereby reduce production costs.

Because the utility model is provided with some thermal columns 2 on the radiating surface 1b of said heat sink 1, and said thermal column 2 is arranged to hollow tubular structure, thus the contact area of increase and air, and then strengthen radiating effect; And said thermal column 2 upper ends and external communications, sidewall are offered said slit 21, make the external world through said slit 21 and internal communication, when said heat sink 1 dispels the heat; Said thermal column 2 internal temperatures are high, and gas rises, and external temperature is low, and gas sinks; Thereby formation cross-ventilation, heat rise with gas and shed, and the cooling air constantly gets into through said slit 21, thereby cooling constantly; Reach the purpose of fast cooling, simple in structure, good heat dissipation effect.

The heat sink 1 that the utility model radiating subassembly 100 is involved and the size of thermal column 2 are well known to those of ordinary skill in the art, no longer do detailed explanation at this.

The above disclosed preferred embodiments that is merely the utility model can not limit the interest field of the utility model certainly with this, so according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.

Claims

1. radiating subassembly; The LED lamp is dispelled the heat, it is characterized in that: comprise heat sink, said heat sink has thermal conductive surface and radiating surface; Said thermal conductive surface is installed said LED lamp; Said radiating surface extends upward out some thermal columns, and said thermal column is hollow tubular structure and upper end and external communications, and the sidewall of said thermal column offers some ventilative mouthful.

2. radiating subassembly as claimed in claim 1 is characterized in that: said thermal column is cylindrical.

3. radiating subassembly as claimed in claim 1 is characterized in that: said thermal column is conical.

4. radiating subassembly as claimed in claim 1 is characterized in that: the said ventilative mouthful of slit for offering along said thermal column length direction.

5. radiating subassembly as claimed in claim 4 is characterized in that: said slit quantity is two, and be positioned at said thermal column each other over against both sides.

6. radiating subassembly as claimed in claim 1; It is characterized in that: the edge of said heat sink thermal conductive surface offers capillary groove; The ccontaining water proof rubber circle of said capillary groove can prevent behind the ccontaining water proof rubber circle of said capillary groove that moisture from getting into and contacting with the LED lamp from the installation slit of said heat sink.