CN201934998U

CN201934998U - High-efficient heat-radiating light emitting diode (LED) lamp body

Info

Publication number: CN201934998U
Application number: CN2011200052629U
Authority: CN
Inventors: 罗建国; 张中秀
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-01-10
Filing date: 2011-01-10
Publication date: 2011-08-17
Anticipated expiration: 2021-01-10

Abstract

The utility model discloses a high-efficient heat-radiating light emitting diode (LED) lamp body, which comprises a lamp adapter, a heat radiator, an LED light source, a transmission surface cover and a drive power supply, wherein the upper part of the lamp adapter is provided with the heat radiator, and the high-efficient heat-radiating LED lamp body is characterized in that: the heat radiator mainly consists of an inner layer of heat radiating wall and a outer layer of heat radiating wall, wherein multiple layers of heat radiating walls are in a similar projection shape, the heat radiating wall is formed by encircling a plurality of arc fins in a gap way, the inner layer of heat radiating wall comprises a plurality of heat radiating fins, the LED light source is installed on the heat radiator, and the transmission surface cover is arranged on the top of the heat radiator and covers the LED light source; the high-efficient heat-radiating LED lamp body has a simple and reasonable structure and small heat resistant area, the heat transferring capacity is enhanced, the heat radiating area is nearly doubled, the heat radiating body is a transparent structure, 360-degree convection of the air can be realized, the heat radiating effect can be obviously improved, and a good heat radiating capacity can be realized.

Description

High efficiency and heat radiation formula LED lamp body

Technical field

The utility model relates to LED energy-saving lamp technical field, especially is a kind of by improving radiator structure, to realize the LED lamp body of high efficiency and heat radiation effect.

Background technology

The LED(light emitting diode) relies on the advantage of its low energy consumption, high light efficiency, high reliability and environmental protection, be widely used on the light fixture of various lighting fields, yet, on light fixture, adopt LED as lighting source, the heat of its generation is if can not distribute timely and effectively, will quicken the light decay of LED, not only reduce the service life of LED, and cause light fixture instability in the use easily; Therefore, the LED radiating and cooling is influenced a difficult problem as the bottleneck that LED uses at lighting field always.

For this reason, the LED light fixture of band radiator is arranged also on the market, yet, these LED light fixtures still have the following disadvantages: (1) radiator is made of two parts at least, needs to interconnect cooperation between them, therefore, in fact the connecting portion between them is equivalent to the thermal resistance face, is unfavorable for heat transmission; (2) part radiator material behavior on one's own account only distributes heat, also has the part radiator to offer louvre, fin, but can't realize the inside and outside convection current of radiator 360 degree air all the time, and therefore, radiating effect is undesirable; (3) traditional spreader surface, its thermal radiation capability is relatively poor, to a certain extent, also limits the radiating effect of radiator; (4) the part radiator only is provided with single outer heat radiation wall, and its area of dissipation is less relatively, even there is the part radiator to offer louvre, fin, to increase the radiating surface between it and the air (convection current), but the radiating surface of this radiator, its area are still less relatively; (5) because the LED lamp is arranged on the lamp plate, be installed in radiator by screw (fixture) again, lamp plate and radiator wall form the thermal resistance face, are unfavorable for heat transmission; (6) driving power of LED lamp, the environment temperature of its requirement is lower, if the environment temperature at driving power place is too high, can cause job insecurity easily, directly have influence on its service life, yet the driving power of existing LED lamp generally is installed in the radiator, because the temperature in the radiator is higher, therefore, cause the driving power job insecurity easily, seriously shorten its service life.

The utility model content

The purpose of this utility model is to overcome in the above-mentioned prior art because of the undesirable deficiency that exists of dispelling the heat, and a kind of high efficiency and heat radiation formula LED lamp body is provided; This kind of LED lamp body has simple and reasonable for structurely, and the thermal resistance face is little, by increasing area of dissipation, and cooperates the permeable structures of radiator, have 360 degree air inside and outside, cross convection current, can obviously improve radiating effect, and have the advantage of good thermal radiation capability concurrently.

The purpose of this utility model is to realize like this.

High efficiency and heat radiation formula LED lamp body, comprise lamp holder, radiator, led light source, printing opacity face shield and driving power, lamp holder top is provided with radiator, it is characterized in that described radiator mainly is made of inside and outside two-layer heat radiation wall, the approximate projection of outer heat radiation wall shape, it is enclosed in the gap mode by many curved fins and forms, internal layer heat radiation wall comprises many radiating fins, and led light source is installed on the radiator, and the transparent surface cover is arranged on the radiator top and covers led light source.This kind of high efficiency and heat radiation formula LED lamp body, each face of outer field many curved fins of radiator all constitutes radiating surface, cooperates the internal layer heat radiation wall that increases again, and the area of dissipation of radiator is significantly improved; In addition, owing to have airflow clearance between each curved fins of the outer heat radiation of formation wall, internal layer heat radiation wall is communicated with atmosphere, radiator constitute the comprehensive air of 360 degree inside and outside, cross convection current, so that heat can be dispersed into the outside in time, apace and go, therefore, can obviously improve the integral heat sink effect of LED lamp body, the temperature of reduction LED lamp body, help reducing the optical attenuation of LED, prolong the service life of LED lamp.

The purpose of this utility model can also adopt following technical measures to solve.

As good scheme further, described internal layer heat radiation wall can also include newel, and many radiating fin branches are located at the outer surface of newel, and also have wire through-hole on the described newel; The wire through-hole of newel except making things convenient for power line passes through, also helps the heat that led light source (being located on the radiator) produces, and can discharge by wire through-hole.

In order further to improve the thermal radiation effect of radiator, described spreader surface adopts specially treated, and it is by being provided with the coating that can strengthen thermal radiation capability on spreader surface.

For the ease of being connected with the lamp holder of bottom, described radiator bottom is provided with internal thread.

As scheme more specifically, described led light source can be an integrated LED lamp plate light source, radiator top is gone in its clinching, led light source (plate) surface is directly contacted with the radiator wall, need not screw and fix, reduced the thermal resistance face, capacity of heat transmission strengthens, therefore, the heat of led light source can directly loose by radiator.

Described printing opacity face shield can be hemispheric glass face shield or plastic cement face shield.

As more particular embodiment, also be provided with cavity volume on the described lamp holder, lay the driving power of LED lamp in the cavity volume of lamp holder, driving power passes the wire through-hole of radiator newel by power line, electrically connects with led light source; In addition, lamp holder can adopt waterproof, fire prevention plastic material to make, and can be used as the lamp holder use that cooperates various standards; And, it avoids power supply to be subjected to the higher radiator influence of environment temperature by driving power being installed in the lamp holder inner chamber of being made by waterproof, fire prevention plastic material, has really realized " the thermoelectric separation ", both guarantee the stability of driving power work, improved its service life again.

Radiator can adopt high thermal conductivity coefficient aluminum alloy materials die casting global formation, has both eliminated the connecting portion that constitutes between each parts of radiator, reduces the thermal resistance face, helps accelerating the heat conduction.

The beneficial effects of the utility model are as follows.

(1) the utility model high efficiency and heat radiation formula LED lamp body, because radiator adopts the moulding of high thermal conductivity coefficient aluminum alloy materials integral die-cast, avoid radiator to adopt a plurality of parts to connect and cooperate, reduced the joint face between each parts of radiator, thereby reduce the thermal resistance face, help increasing capacity of heat transmission.

(2) this kind of LED lamp body, because radiator adopts the aluminum alloy materials of high thermal conductivity coefficient to make, self just has good heat conduction, thermolysis its material; Have, radiator mainly is made of inside and outside two-layer heat radiation wall fin, wherein again, outer heat radiation wall system can optimal heat conduction (evenly) gap be enclosed by many curved fins and forms, make between each curved fins to have airflow clearance, that is: each face of each curved fins all constitutes radiating surface, and, also increased internal layer heat radiation wall, this significantly improves the area of dissipation of radiator, and according to measurement, it is compared with original radiator, the radiator of same unit volume, its area of dissipation improve nearly one times; More have plenty of, owing to have airflow clearance between each curved fins of the outer heat radiation of formation wall, internal layer heat radiation wall is communicated with atmosphere, radiator constitute the comprehensive air of 360 degree inside and outside, cross convection current, so that heat can be dispersed in the middle of the extraneous air in time, apace, therefore, can obviously improve the integral heat sink effect of LED lamp body.

(3) this kind of high efficiency and heat radiation formula LED lamp body, also by spreader surface is adopted specially treated, it is by the coating that can strengthen thermal radiation capability is set on spreader surface, with the radiating effect of further raising radiator.

(4) because led light source is that integrated LED lamp plate and clinching are gone in the radiator, led light source (plate) surface is directly contacted with the radiator wall, need not screw and fix, reduced the thermal resistance face, capacity of heat transmission strengthens, and therefore, the heat of led light source can directly loose by radiator.

(5) this kind of high efficiency and heat radiation formula LED lamp body, be installed in the lamp holder inner chamber of making by waterproof, fire prevention plastic material by driving power with the LED lamp, avoid power supply to be subjected to the higher radiator influence of environment temperature, really realized " the thermoelectric separation ", both guarantee the job stability of driving power, improved its service life again.

Description of drawings

Fig. 1 is the schematic diagram of the utility model high efficiency and heat radiation formula LED lamp body.

Fig. 2 is the LED lamp body radiator stereogram of Fig. 1.

Fig. 3 is the radiator vertical view of Fig. 2.

Fig. 4 is the radiator left view of Fig. 3.

Fig. 5 is that the D-D of Fig. 4 is to cutaway view.

The specific embodiment

Extremely shown in Figure 5 as Fig. 1, a kind of high efficiency and heat radiation formula LED lamp body, comprise lamp holder 1, radiator 2, led light source 3, printing opacity face shield 4 and driving power 5, lamp holder 1 is by waterproof, the fire prevention plastic material is made, also be provided with cavity volume C on the lamp holder 1, lay the driving power 5 of LED lamp in the cavity volume C, described lamp holder 1 top is provided with radiator 2, radiator 2 is screwed onto with lamp holder 1 by the internal thread B of its bottom, described radiator 2 can be to be cast into integral body by aluminum alloy materials, radiator also is provided with the coating that can strengthen thermal radiation capability on 2 surfaces, radiator 2 is mainly by interior, outer two-layer

heat radiation wall

22,21 constitute, outer heat radiation wall 21 approximate projection shapes, it is enclosed with optimal heat conduction (evenly) gap by many curved fins 21-1 and forms, many the radiating fin 22-2 formations that internal layer radiator 22 comprises newel 22-1 and extends the newel outer surface, have wire through-hole A in the newel 22-1, led light source 3 is installed on the radiator 2, and printing opacity face shield 4 is arranged on radiator 2 tops and covers led light source 3.

As scheme more specifically, described led light source 3 is integrated LED lamp plate light sources, and radiator 2 tops are gone in its clinching, and printing opacity face shield 4 is hemispheric glass face shield, the driving power 5 of lamp holder 1 inner chamber is the wire through-hole A that passes radiator 2 newels by power line, electrically connects with led light source 3.

Radiating principle: during work, led light source produces heat, a part directly is dispersed in the middle of the air by skin heat radiation wall fin, another part (contain internal layer radiating fin heat absorption) by inside and outside the air, cross convection current and be brought in the middle of the air, some thermal radiation coating by spreader surface is directly scattered in the middle of the air.

Claims

1. high efficiency and heat radiation formula LED lamp body, comprise lamp holder (1), radiator (2), led light source (3), printing opacity face shield (4) and driving power (5), lamp holder (1) top is provided with radiator (2), it is characterized in that, described radiator (2) is mainly by interior, outer two-layer heat radiation wall (22,21) constitute, the approximate projection of outer heat radiation wall (21) shape, it is enclosed in the gap mode by many curved fins (21-1) and forms, internal layer heat radiation wall (22) comprises many radiating fins (22-2), led light source (3) is installed on the radiator (2), and printing opacity face shield (4) is arranged on radiator (2) top and covers led light source (3).

2. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that, described internal layer heat radiation wall (22) also includes newel (22-1), many radiating fins (22-2) branch is located at the outer surface of newel (22-1), and also has wire through-hole (A) on the described newel (22-1).

3. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that described radiator (2) also is provided with the coating that can strengthen thermal radiation capability on the surface.

4. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that described radiator (2) bottom is provided with internal thread (B).

5. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that described led light source (3) is an integrated LED lamp plate light source, radiator (2) top is gone in its clinching.

6. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that described printing opacity face shield (4) is hemispheric glass face shield or plastic cement face shield.

7. according to the described high efficiency and heat radiation formula of claim 2 LED lamp body, it is characterized in that, also be provided with cavity volume (C) on the described lamp holder (1), lay the driving power (5) of LED lamp in the cavity volume (C) of lamp holder (1), driving power (5) passes the wire through-hole (A) of radiator (2) newel by power line, electrically connects with led light source (3).

8. according to the described high efficiency and heat radiation formula of claim 1 LED lamp body, it is characterized in that described radiator (2) is to be cast into integral body by aluminum alloy materials.