CN202074312U - High-power light emitting diode (LED) tube lamp with high light emitting efficiency - Google Patents
High-power light emitting diode (LED) tube lamp with high light emitting efficiency Download PDFInfo
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- CN202074312U CN202074312U CN2011201942399U CN201120194239U CN202074312U CN 202074312 U CN202074312 U CN 202074312U CN 2011201942399 U CN2011201942399 U CN 2011201942399U CN 201120194239 U CN201120194239 U CN 201120194239U CN 202074312 U CN202074312 U CN 202074312U
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- led chip
- power led
- metal heat
- light emitting
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Abstract
The utility model discloses a high-power light emitting diode (LED) tube lamp with high light emitting efficiency, which comprises an annular lamp case (1), wherein the lamp case (1) consists of a front ring and a back ring, the front ring and the back ring are mutually buckled and connected, the back part of the lamp case (1) is provided with a cylindrical metal heat radiation element (2), radial fins are arranged on the cylindrical metal heat radiation element (2), a circuit layer is arranged on the front side of the metal heat radiation element (2), a circular arc-shaped groove (4) is arranged on the front side of the metal heat radiation element (2), a high-power LED chip (3) is arranged in the circular arc-shaped groove (4), heat conduction insulation glue is filled between the high-power LED chip (3) and the circular arc-shaped groove (4), the metal heat radiation element (2) is provided with LED chip welding points (5) electrically connected with the circuit layer at both sides of each circular arc-shaped groove (4), and the LED chip welding points (5) are electrically connected with two electrodes of the high-power LED chip (3) through conducting wires. The high-power LED tube lamp has the advantages that the light emitting efficiency is high, and the lamp case assembly and the construction installation are also very convenient.
Description
Technical field
The utility model belongs to the technical field of lighting, specifically is meant the high-power LED tube light that a kind of luminous efficiency is high.
Background technology
Great power LED Down lamp structure mainly is made up of lamp housing, lampshade, metal heat sink, power supply, led light source.Along with the semi-conductor industry development of technology, the light emitting diode cost performance improves day by day, and it is trend of the times that high-power LED tube light replaces traditional Down lamp.
At present, on the market on the substrate (as aluminium base) of the most weld metal material of the great power LED of all high-power LED tube lights.The heat radiation approach of whole Down lamp: outside LED → pcb board (aluminium base) → thermal conductive insulation glue → metal shell → lamp body, though metal substrates such as aluminium base have very good heat conductivility and high-intensity electrical insulation properties, but the heat radiation approach is oversize, the heat that LED produces is difficult for getting rid of, cause the LED junction temperature to raise, the rising of LED junction temperature can make transistorized current amplification factor increase sharply, cause collector current to increase, junction temperature is further raise, finally cause the LED light efficiency to descend until inefficacy.In addition, high-power LED tube light is under the high temperature work for a long time, can cause bad phenomenon such as insulating properties degeneration, components and parts damage, the heat ageing of material, low melting point weld cracking, the solder joint of Down lamp come off.
In addition, the Heat Conduction Material that in heat radiation, adopts, a lot of LED manufacturers still use heat-conducting silicone grease as the heat conduction packing material always.The heat-conducting silicone grease that adopts is as the heat conduction packing material, it is along with the light fixture working time prolongs, and the main component silicone oil volatilization slowly of the inside becomes dry to the end, its heat conductivility will reduce greatly, has dispelled the heat affecting the normal of light fixture. and at this moment the life-span of light fixture is also and then influenced.
Radiating treatment has become one of vital challenge in the high-power LED tube light design, promptly tighten at framework, under the more and more littler situation in operating space, how to solve the heat radiation of great power LED, the heat that PN junction is produced can distribute as soon as possible, not only can improve the luminous efficiency of product, also improve reliability of products and life-span simultaneously; In view of LED to the having relatively high expectations of radiating condition, the limit value if the PN junction junction temperature is above standard, LED will aggravate light decay, reduces luminous efficiency, even quits work.So, improve the light efficiency of LED Down lamp, in fact just need to solve the heat dissipation problem of LED.
The utility model content
The purpose of this utility model is to provide a kind of heat radiation approach of high-power LED tube light that shortens to improve the high-power LED tube light of LED light efficiency.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the high-power LED tube light that luminous efficiency is high, comprise the lamp housing of annular, and described lamp housing is made of preceding ring and back ring, and preceding ring and back ring are interlockingly connected.The rear portion of lamp housing is provided with the metal heat sink of cylindricality, the metal heat sink of cylindricality is provided with radial fin, the front of described metal heat sink is provided with line layer, the front of metal heat sink is provided with circular groove, described high-power LED chip is arranged in the circular groove, be filled with thermal conductive insulation glue between high-power LED chip and the circular groove, described metal heat sink is provided with the led chip solder joint that is electrically connected with line layer in the both sides of each circular groove, the led chip solder joint is electrically connected with the two poles of the earth of high-power LED chip by lead.
The back ring of described lamp housing is provided with at least two fasteners.
Owing to adopted above-mentioned structure, high-power LED tube light of the present utility model is encapsulated into high-power LED chip in the aluminium base, forms LED and aluminium base firming body, and it has following beneficial effect:
(1), directly is encapsulated on " metal heat sink " owing to " high-power LED chip ", take the vertical, horizontal radiating treatment, area of dissipation increases, and can effectively solve the drawback of the heat radiation difficulty of LED existence, junction temperature when having effectively reduced LED work avoids causing the irreversibility light decay.
(2), aspect the production of high-power LED tube light, because " high-power LED chip " is potted directly on " metal heat sink ", can save raw material such as aluminium base and heat-conducting silicone grease, simultaneously in high-power LED tube light production, reduced by three road manufacturing procedures at least, be suitable for high-power LED tube light and produce in batches.
(3), since " high-power LED chip " be potted directly on " metal heat sink ", high-power LED tube light reaches 80000 hours service life.
(4), LED is cold light source, photochromic soft, free from glare contains some pernicious gases unlike other light source, and the recyclable utilization of LED waste products, is real green energy conservation product.
(5), led light source is that a kind of high hardness resin illuminator but not tungsten filament glass etc. damage light source easily, so seismic force is higher relatively, the environment temperature adaptive faculty is strong.
(6), the high-power LED tube light switching response time is short, no stroboscopic phenomenon is not easy visual fatigue, energy-conserving and environment-protective.
(7), the dustproof and waterproof grade that adopts of high-power LED tube light is up to IP54, high-power LED tube light light source electrical equipment is integrated, install simple, easy maintenance.
(8), since " high-power LED chip " be potted directly on " metal heat sink ", effectively solved the heat dissipation problem of high-power LED tube light, improve the LED luminous efficiency exactly; Under this prerequisite, sustainment rate 〉=96% of sustainment rate 〉=98%, the 10000 hour luminous flux of 5000 hours luminous fluxes of high-power LED tube light.
(9), can be more than 70% than conventional cartridge Lantern Festival with illumination.
(10), because " high-power LED chip " is potted directly on " metal heat sink ", and the heat radiation approach shortens, and light fixture adopts the directional type radiating treatment, the heat that produces when making Down lamp work conducts to shell rapidly.
(11), the constant-current driving power supply of Down lamp has over-voltage over-current protection, the anti-surge surge protection of start, good functions such as EMI processing; Have the PFC circuit for rectifying, have higher power factor, improve the utilization rate of whole electrical network.
(12), lampshade adopts nanometer abrasive material, the light free from glare that light fixture sends.
(13), lamp housing is easy to assembly, the utility model construction and installation are also very convenient.
Description of drawings
Fig. 1 is the stereogram of the high high-power LED tube light of luminous efficiency.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
As shown in Figure 1, the high-power LED tube light that luminous efficiency described in the utility model is high, the lamp housing 1 that comprises annular, described lamp housing 1 is made of preceding ring and back ring, preceding ring and back ring are interlockingly connected, the back ring of described lamp housing 1 is provided with at least two fasteners 6, and fastener 6 is used for that the utility model is installed in the sky to be taken.The rear portion of lamp housing 1 is provided with the metal heat sink 2 of cylindricality, metal heat sink 2 is made by aluminium, is shaped as cylindricality, and metal heat sink 2 is provided with radial fin, and fin can increase the area that radiator contacts with air, further strengthens radiating efficiency.The front of described metal heat sink 2 is provided with line layer, the front of metal heat sink 2 is provided with circular groove 4, described high-power LED chip 3 is arranged in the circular groove 4, be filled with thermal conductive insulation glue between high-power LED chip 3 and the circular groove 4, the effect of thermal conductive insulation glue is to increase heat transfer efficiency, thereby increases radiating efficiency.Described metal heat sink 2 is provided with the led chip solder joint 5 that is electrically connected with line layer in the both sides of each circular groove 4, led chip solder joint 5 is electrically connected by lead the two poles of the earth with high-power LED chip 3.
The utility model is when concrete encapsulation, go up setting " circular groove " in " metal heat sink ", in " high-power LED chip " placement " circular groove ", between " high-power LED chip " and " circular groove ", be filled with thermal conductive insulation glue, both sides at " circular groove " are provided with " led chip solder joint ", " led chip solder joint " is arranged on " metal heat sink ", the P of high-power LED chip, the N utmost point is fixed on " led chip solder joint " by playing the gold thread connection or deciding machine group with group, makes copper foil circuit according to the actual production requirement in " metal heat sink " then.Take this method for packing, high-power LED chip and metal heat sink become one " LED and metal heat sink firming body ".Compare with " LED → pcb board (aluminium base) → thermal conductive insulation glue → metal shell → lamp body is outer " heat radiation approach, adopt the heat radiation approach of the Down lamp of this method for packing design to be " LED and metal heat sink firming body → lamp body are outer ", the step of only need dispelling the heat together just can solve the heat dissipation problem of high-power LED tube light.Adopt the light fixture good heat dissipation effect of such method for packing, the temperature when effectively reducing high-power LED chip work can improve LED luminous efficiency and service life effectively.
In a word; though the utility model has exemplified above-mentioned preferred implementation; but should illustrate; though those skilled in the art can carry out various variations and remodeling; unless such variation and remodeling have departed from scope of the present utility model, otherwise all should be included in the protection domain of the present utility model.
Claims (2)
1. high-power LED tube light that luminous efficiency is high, it is characterized in that: the lamp housing (1) that comprises annular, described lamp housing (1) is made of preceding ring and back ring, preceding ring and back ring are interlockingly connected, the rear portion of lamp housing (1) is provided with the metal heat sink (2) of cylindricality, the metal heat sink of cylindricality (2) is provided with radial fin, the front of described metal heat sink (2) is provided with line layer, the front of metal heat sink (2) is provided with circular groove (4), described high-power LED chip (3) is arranged in the circular groove (4), be filled with thermal conductive insulation glue between high-power LED chip (3) and the circular groove (4), described metal heat sink (2) is provided with the led chip solder joint (5) that is electrically connected with line layer in the both sides of each circular groove (4), led chip solder joint (5) is electrically connected by lead the two poles of the earth with high-power LED chip (3).
2. according to the high high-power LED tube light of the described luminous efficiency of claim 1, it is characterized in that: the back ring of described lamp housing (1) is provided with at least two fasteners (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942399U CN202074312U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tube lamp with high light emitting efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942399U CN202074312U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tube lamp with high light emitting efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074312U true CN202074312U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201942399U Expired - Fee Related CN202074312U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tube lamp with high light emitting efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202074312U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864320A (en) * | 2015-05-27 | 2015-08-26 | 立达信绿色照明股份有限公司 | Down lamp |
-
2011
- 2011-06-10 CN CN2011201942399U patent/CN202074312U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864320A (en) * | 2015-05-27 | 2015-08-26 | 立达信绿色照明股份有限公司 | Down lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20120610 |