CN202598177U

CN202598177U - An LED tube lamp

Info

Publication number: CN202598177U
Application number: CN2012200923253U
Authority: CN
Inventors: 谢伟强
Original assignee: FUJIAN HUAERHUI PHOTOELECTRIC CO LTD
Current assignee: FUJIAN HUAERHUI PHOTOELECTRIC CO LTD
Priority date: 2012-03-13
Filing date: 2012-03-13
Publication date: 2012-12-12
Anticipated expiration: 2022-03-13

Abstract

The utility model provides an LED tube lamp, comprising a lamp cover, an LED chip, a lamp holder, a heat dissipation substrate and a lamp head, wherein the lamp holder is fixed between the lamp cover and the heat dissipation substrate, the LED chip is disposed in the lamp cover and fixed on the lamp holder; the lamp head is disposed at the tail end of the heat dissipation substrate, and the heat dissipation substrate comprises a hollow cavity body and a plurality of heat dissipation fins disposed on the periphery of the hollow cavity body in a radial manner and is a columnar heat dissipation body wholly. An LED bulb lamp is characterized by elegant appearance, relatively large heat dissipation area and high heat dissipation efficiency, and is suitable for LED lamps provided with various lamp holder structures. The appearance design space and external aesthetic effect of the LED bulb lamp are improved evidently, the LED bulb lamp can be well received by consumers, and the service lifetime of the LED bulb lamp is prolonged.

Description

The LED Down lamp

Technical field

The utility model relates to a kind of lighting, relates in particular to a kind of LED Down lamp.

Background technology

Light emitting diode (being LED) is advantage such as brightness height, power consumption are low, long service life because of having, and the fields such as lighting and electronic installation that are widely used in are as illuminating source.But the LED lamp is supervened high heat in high brightness; The chip temperature of LED lamp must could change into luminous energy rather than heat energy with electric energy below 80 degrees centigrade, and under luminous continuously duty; If heat can not get in time distributing; Can cause burning of light emitting diode, influence service life, increase use cost.

Tradition LED Down lamp generally adopts incandescent lamp or electricity-saving lamp, and the direct simple substitution of afterwards Down lamp being used of light source becomes led light source, and the heat that sends generation owing to led light source is big; Do not have effective heat abstractor that the life-span of led light source is reduced greatly, research is surperficial by inquiry, usually below 55 degrees centigrade; The theoretical life-span of LED can reach 90,000 hours; When 80 deg.c, the theoretical life-span of LED can only reach 30,000 hours, if reach 100 degrees centigrade; The theoretical life-span of LED can only reach 10,000 hours, and the LED Down lamp that therefore designs good heat dissipation effect is extremely important.

The utility model content

The purpose of the utility model is to provide the LED that a kind of heat dispersion significantly promotes, production cost is low, simple in structure Down lamp.

For solving the problems of the technologies described above; The utility model provides a kind of LED Down lamp, comprises lamp body and driving power, and said driving power is electrically connected with lamp body; Said lamp body partly comprises lampshade, lens, lamp socket, led light source and heat abstractor; Said lens are located at the lampshade middle part, and said led light source is arranged on the lamp socket and by lens and covers, and said heat abstractor is arranged on the lamp socket; Said heat abstractor comprises hollow posts and is arranged on hollow posts a plurality of radial radiating fin all around that said hollow posts circumferentially was provided with the wind hole along it.

Small and exquisite for implementation structure, the utility model improves to be had, and the radical length of said radiating fin is along lamp socket convergent backward.

The utility model improves to be had, and the cross section of said radiating fin is a waveform.

The utility model improves to be had, and the cross section of said radiating fin is " V " font.

For strengthening the radiating efficiency of LED Down lamp, the utility model improves to be had, and the contact-making surface of said lamp socket and heat abstractor is provided with heat-conducting cream.

For strengthening the radiating efficiency of LED Down lamp, the utility model improves to be had, and the contact-making surface of said led light source and lamp socket is provided with heat-conducting cream.

The utility model improves to be had, and offers annular vent on the said lampshade, forms the wind passage between said air vent and the radiating fin jointly.

The utility model improves to be had, and the material of said lens is an acrylic.

The utility model improves to be had, and the bottom of said cooling base is a hollow cavity, and driving power is arranged in the hollow cavity.

The beneficial effect of the utility model is: adopt led chip directly as the illuminating source of LED Down lamp; Reduced and got a lot of manual members in the production process; Make more mechanization of whole process of production to greatly reduce production cost, and led chip is the face illuminating source; Can give full play to the luminous advantage of LED Down lamp single face, thereby improve the light utilization efficiency of lamp affixed to the ceiling greatly;

Through the setting of heat abstractor, the heat that led light source is sent reaches radiating fin again and then is dispersed into the external world rapidly after can directly reaching lamp socket, has solved led light source heat transmission in use and heat dissipation problem; Thereby can not cause heat accumulation and led light source is being used under the higher temperature for a long time, prolong LED service time greatly, further; Thermal column was provided with the wind hole, because the both sides atmospheric temperature of circulation of air is different, air pressure causes air to flow fast; Atmosphere passes through in crossing the wind hole fast; Form draught, drive hot cold air and exchange rapidly, further strengthened the radiating effect of whole LED Down lamp.

Description of drawings

Accompanying drawing 1 is the partial sectional view of the LED Down lamp of the utility model;

Accompanying drawing 2 is the vertical view of the LED Down lamp of the utility model.

Label declaration: 1-lampshade; The 2-lens; The 3-lamp socket; The 4-LED light source; The 5-heat abstractor; The 51-hollow posts; 511-crosses the wind hole; The 52-radiating fin.

The specific embodiment

By the technology contents, the structural feature that specify the utility model, realized purpose and effect, know clearly below in conjunction with embodiment and conjunction with figs. and give explanation.

With reference to accompanying drawing 1 and accompanying drawing 2; The utility model shown in the accompanying drawing provides a kind of LED Down lamp, comprises lamp body and driving power, and said driving power is electrically connected with lamp body; Said lamp body partly comprises lampshade 1, lens 2, lamp socket 3, led light source 4 and heat abstractor 5; Said lens 2 are located at lampshade 1 middle part, and said led light source 4 is arranged on the lamp socket 3 and has lens 2 to cover, and said heat abstractor 5 is arranged on the lamp socket 3; Said heat abstractor 5 comprises hollow posts 51 and is arranged on hollow posts 51 a plurality of radial radiating fin 52 all around that said hollow posts 51 circumferentially was provided with wind hole 511 along it.

Adopt led chip directly as the illuminating source of LED Down lamp; The a lot of manual members in the production process have been reduced; Make more mechanization of whole process of production to greatly reduce production cost, and led chip is the face illuminating source; Can give full play to the luminous advantage of LED Down lamp single face, thereby improve the light utilization efficiency of lamp affixed to the ceiling greatly;

Through the setting of heat abstractor 5, the heat that led light source 4 is sent reaches radiating fin 52 again and then is dispersed into the external world rapidly after can directly reaching lamp socket 3, and radiating fin 52 makes entire heat dissipation device 5 possess bigger area of dissipation; The performance of heat radiation significantly promotes, and has solved led light source 4 heat transmission in use and heat dissipation problem, thereby can not cause heat accumulation and make led light source 4 in for a long time higher temperature use down; Prolong the service time of led light source 4 greatly, further, hollow posts 51 was provided with wind hole 511; Because the both sides atmospheric temperature of circulation of air is different; Air pressure causes air to flow fast, and atmosphere passes through in crossing wind hole 511 fast, forms draught; Drive hot cold air and exchange rapidly, further strengthened the radiating effect of whole LED Down lamp.

In the present embodiment, the radical length of said radiating fin 52 is along lamp socket 3 convergent backward, and the heat that spreads out of on the lamp socket 3 is maximum; Gradually reduce afterwards backward,, make under the prerequisite that lamp socket 3 can guarantee to dispel the heat again through the design of convergent; Realize specious, advantages of small volume.

In the present embodiment; The cross section of said radiating fin 52 is a waveform, does not limit the shape of its radiating fin 52 certainly in the present embodiment, among other embodiment; The cross section of said radiating fin 52 is that " V " font or helical curve are linear; Its ultimata is the area of dissipation that further strengthens the whole LED Down lamp, and is that air between two radiating fins 52 can access more uniform heating, has further strengthened the hot cold air exchange of air; Make the circulation of air accelerate, timely heat is distributed.

In the present embodiment, reach lamp socket 3 and then reach cooling base again for further strengthening heat that led chip sends, said lamp socket 3 is provided with heat-conducting cream with the contact-making surface of heat abstractor 5, and said led light source 4 is provided with heat-conducting cream with the contact-making surface of lamp socket 3.

In the present embodiment, offer annular vent on the said lampshade 1, formed the wind passage jointly between said air vent and the radiating fin 52.

Because lampshade 1 is provided with annular vent, wind can directly pass air vent, during use; Because the cooling base heat increases, hot-air is because density contrast, can be along the space of vertical bank to rising; Hot-air looses to overflow and forms air-flow, and the air that is positioned at lampshade 1 below is drawn into to be filled up, and causes air to add the phenomenon of strong convection; Form stack effect, the heat radiation of LED Down lamp is strengthened in hot cold air exchange.

In the present embodiment, the material of said lens 2 is an acrylic, and among other embodiment, the material of lens 2 is a glass.

In the present embodiment, the bottom of said cooling base is a hollow cavity, and driving power is arranged in the hollow cavity, realizes the small and exquisite of overall volume.

In sum, get the LED Down lamp during this use is novel and have saves energy, advantages such as heat radiation and good illumination effect, good looking appearance have very big market value.

The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.

Claims

1. a LED Down lamp is characterized in that, comprises lamp body and driving power; Said driving power is electrically connected with lamp body, and said lamp body partly comprises lampshade, lens, lamp socket, led light source and heat abstractor, and said lens are located at the lampshade middle part; Said led light source is arranged on the lamp socket and by lens and covers; Said heat abstractor is arranged on the lamp socket, and said heat abstractor comprises hollow posts and be arranged on hollow posts a plurality of radial radiating fin all around that said hollow posts circumferentially was provided with the wind hole along it.

2. LED Down lamp according to claim 1 is characterized in that, the radical length of said radiating fin is along lamp socket convergent backward.

3. LED Down lamp according to claim 1 is characterized in that, the cross section of said radiating fin is a waveform.

4. LED Down lamp according to claim 1 is characterized in that, the cross section of said radiating fin is " V " font.

5. LED Down lamp according to claim 1 is characterized in that the contact-making surface of said lamp socket and heat abstractor is provided with heat-conducting cream.

6. LED Down lamp according to claim 1 is characterized in that the contact-making surface of said led light source and lamp socket is provided with heat-conducting cream.

7. LED Down lamp according to claim 1 is characterized in that, offers annular vent on the said lampshade, forms the wind passage between said air vent and the radiating fin jointly.

8. LED Down lamp according to claim 1 is characterized in that, the material of said lens is an acrylic.

9. LED Down lamp according to claim 1 is characterized in that the bottom of said cooling base is a hollow cavity, and driving power is arranged in the hollow cavity.