CN202074362U - High-power light emitting diode (LED) tunnel lamp with good heat radiation performance - Google Patents
High-power light emitting diode (LED) tunnel lamp with good heat radiation performance Download PDFInfo
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- CN202074362U CN202074362U CN2011201942134U CN201120194213U CN202074362U CN 202074362 U CN202074362 U CN 202074362U CN 2011201942134 U CN2011201942134 U CN 2011201942134U CN 201120194213 U CN201120194213 U CN 201120194213U CN 202074362 U CN202074362 U CN 202074362U
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Abstract
The utility model discloses a high-power light emitting diode (LED) tunnel lamp with good heat radiation performance, which comprises a lamp case, wherein a driving circuit is arranged in the lamp case and comprises a bridge rectifying circuit and a voltage stabilizing output circuit, the bridge rectifying circuit is connected with the voltage input end, the voltage stabilizing output circuit is connected with the output end of the bridge rectifying circuit, a lightning protection circuit, an over current protection circuit, a discharge protection circuit and an electro-magnetic interference (EMI) inhibiting circuit are sequentially connected in series between the voltage input end and the input end of the bridge rectifying circuit, the back part of the lamp case is provided with an installing support frame, a metal heat radiation element is arranged on the lamp case, the front part of the lamp case is provided with an aluminum base plate pasted on the metal heat radiation element, a circuit layer is arranged on the front side of the aluminum base plate, a plurality of circular arc-shaped grooves are arranged on the front side of the aluminum base plate, high-power LED chips are arranged in the circular arc-shaped grooves, the aluminum base plate is provided with LED chip welding points electrically connected with the circuit layer at both sides of each circular arc-shaped groove, and the LED chip welding points are electrically connected with two electrodes of the high-power LED chips through conducting wires.
Description
Technical field
The utility model belongs to the technical field of lighting, specifically is meant a kind of high power LED tunnel lamp of perfect heat-dissipating.
Background technology
At present, Tunnel Lamp be mainly used in tunnel, workshop, bulk storage plant, venue, metallurgy and all kinds of plant area, engineering construction, etc. the place illumination.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 the great power LED Tunnel Lamp replaces the traditional lighting lamp.
Great power LED Tunnel Lamp structure mainly is made up of mounting bracket, lamp housing, metal heat sink, power supply, high-power LED light source.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 tunnel lamps.The heat radiation approach of whole high power LED tunnel lamp: outside great power 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 great power LED produces is difficult for getting rid of, cause the great power LED junction temperature to raise, the rising of great power LED junction temperature can make transistorized current amplification factor increase sharply, cause collector current to increase, junction temperature is further raise, finally cause great power LED to lose efficacy.In addition, high power LED tunnel lamp 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 Tunnel Lamp come off.
In view of great power LED to the having relatively high expectations of radiating condition, the limit value if the PN junction junction temperature is above standard, great power LED will aggravate light decay, lowers efficiency, even quits work.So heat dissipation problem is the most scabrous key of high power LED tunnel lamp.
In addition, current majority LED Tunnel Lamp does not have overheat protective function in the market, and some power circuit is in lightning protection, overcurrent protection and EMI processing etc. also existing problems simultaneously.Traditional LED Tunnel Lamp is subjected to above-mentioned former thereby damage easily, has caused the increase of use cost.
The utility model content
The purpose of this utility model is to provide heat transference efficiency height between a kind of great power LED and the substrate, with the high power LED tunnel lamp of overtemperature protection, lightning protection, overcurrent protection and EMI processing.
For solving the problems of the technologies described above; the technical solution adopted in the utility model is: the high power LED tunnel lamp of perfect heat-dissipating; comprise lamp housing; be provided with drive circuit in the lamp housing; described drive circuit comprises bridge rectifier that joins with voltage input end and the voltage-stabilizing output circuit that is connected on the bridge rectifier output; be serially connected with lightning protection circuit between the input of described voltage input end and bridge rectifier successively; current foldback circuit; discharge protection circuit; EMI suppresses circuit; the rear portion of lamp housing is provided with mounting bracket; lamp housing is provided with metal heat sink; the front portion of lamp housing is provided with the aluminium base that is attached on the metal heat sink; the front of described aluminium base is provided with line layer; the front of aluminium base is provided with several circular grooves; described high-power LED chip is arranged in the circular groove; aluminium base 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.
Be filled with thermal conductive insulation glue between described high-power LED chip and the circular groove.
Be filled with thermal conductive insulation glue between described aluminium base and the metal heat sink.
Owing to adopted above-mentioned structure, high power LED tunnel lamp of the present utility model is encapsulated into high-power LED chip in the aluminium base, forms great power LED and aluminium base firming body, and it has following beneficial effect:
(1), directly is encapsulated on " aluminium base " owing to " high-power LED chip ", take the vertical, horizontal radiating treatment, area of dissipation increases, can effectively solve the drawback of the heat radiation difficulty of great power LED existence, junction temperature when having effectively reduced great power LED work avoids causing the irreversibility light decay.
(2), because " high-power LED chip " is potted directly on " aluminium base ", in high power LED tunnel lamp production, reduced one manufacturing procedure of " great power LED is welded on the aluminium base ", be suitable for high power LED tunnel lamp and produce in batches.
(3), since " high-power LED chip " be potted directly on " aluminium base ", high power LED tunnel lamp reaches 80000 hours service life.
(4), great power LED is cold light source, photochromic soft, free from glare contains some pernicious gases unlike other light source, and the recyclable utilization of great power LED waste products, is real green energy conservation product.
(5), high-power 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 tunnel lamp 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 tunnel lamp is up to IP65, high power LED tunnel lamp light source electrical equipment is integrated, install simple, easy maintenance.
(8), be potted directly on " aluminium base " owing to " high-power LED chip ", effectively solved the heat dissipation problem of high power LED tunnel lamp, sustainment rate 〉=96% of sustainment rate 〉=98%, the 10000 hour luminous flux of 5000 hours luminous fluxes of high power LED tunnel lamp.
(9), than energy-conservation more than 70% with the conventional tunnel lamp (as high-pressure mercury lamp) of illumination.
(10), because " high-power LED chip " is potted directly on " aluminium base ", and the heat radiation approach shortens, and light fixture adopts the directional type radiating treatment, the heat that produces when making Tunnel Lamp work conducts to shell rapidly.
(11), the constant-current drive circuit of Tunnel 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), drive circuit of the present utility model is handled the service life that can effectively improve the LED street lamp, reduction use cost with overtemperature protection, lightning protection, overcurrent protection and EMI.
Description of drawings
Fig. 1 is the stereogram of the high power LED tunnel lamp of perfect heat-dissipating.
Fig. 2 is a drive circuit block diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
As depicted in figs. 1 and 2; the high power LED tunnel lamp of perfect heat-dissipating described in the utility model; comprise lamp housing 1; be provided with drive circuit 8 in the lamp housing 1; described drive circuit comprises bridge rectifier that joins with voltage input end and the voltage-stabilizing output circuit that is connected on the bridge rectifier output, is serially connected with lightning protection circuit, current foldback circuit, discharge protection circuit, EMI between the input of described voltage input end and bridge rectifier successively and suppresses circuit.The rear portion of lamp housing 1 is provided with mounting bracket 6, and mounting bracket 6 is used for that Tunnel Lamp is installed to the sky to be taken.Described lamp housing 1 is provided with metal heat sink 2, and metal heat sink 2 is made by aluminium, is bulk, and its side face can be evenly equipped with fin, and fin can increase the area that radiator contacts with air, further strengthens radiating efficiency.The front portion of described lamp housing 1 is provided with the aluminium base 7 that is attached on the metal heat sink 2, is filled with thermal conductive insulation glue between described aluminium base 7 and the metal heat sink 2.The front of described aluminium base 7 is provided with line layer, and the front of aluminium base 7 is provided with several circular grooves 4, is provided with high-power LED chip 3 in the circular groove 4, is filled with thermal conductive insulation glue between described high-power LED chip 3 and the circular groove 4.Aluminium base 7 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, circular groove is set on aluminium base, high-power LED chip is placed in the circular groove, between high-power LED chip and circular groove, fill thermal conductive insulation glue, in the both sides of circular groove the led chip solder joint is set, the led chip solder joint is electrically connected with the line layer of aluminium base, the P of high-power LED chip, the N utmost point require to make aluminium base copper foil circuit at the copper foil layer of aluminium base according to actual production by playing the gold thread connection or deciding machine group with group and decide to the led chip solder joint then.Take this method for packing, high-power LED chip and aluminium base become a great power LED and aluminium base firming body.Compare with traditional outer heat radiation approach of great power LED → pcb board (aluminium base) → thermal conductive insulation glue → metal shell → lamp body, the utility model heat radiation approach is outside great power LED and the aluminium base firming body → thermal conductive insulation glue → metal shell → lamp body, has reduced the step of dispelling the heat together.Adopt the good heat dissipation effect of the high power LED tunnel lamp of the utility model substrate, the temperature in the time of can effectively reducing high-power LED chip work can play good effect to improving great power LED light efficiency and life-span.
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 (3)
1. the high power LED tunnel lamp of a perfect heat-dissipating; it is characterized in that: comprise lamp housing (1); be provided with drive circuit (8) in the lamp housing (1); described drive circuit comprises bridge rectifier that joins with voltage input end and the voltage-stabilizing output circuit that is connected on the bridge rectifier output; be serially connected with lightning protection circuit between the input of described voltage input end and bridge rectifier successively; current foldback circuit; discharge protection circuit; EMI suppresses circuit; the rear portion of described lamp housing (1) is provided with mounting bracket (6); lamp housing (1) is provided with metal heat sink (2); the front portion of lamp housing (1) is provided with the aluminium base (7) that is attached on the metal heat sink (2); the front of described aluminium base (7) is provided with line layer; the front of aluminium base (7) is provided with several circular grooves (4); be provided with high-power LED chip (3) in the circular groove (4); aluminium base (7) 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 power LED tunnel lamp of the described perfect heat-dissipating of claim 1, it is characterized in that: be filled with thermal conductive insulation glue between described high-power LED chip (3) and the circular groove (4).
3. according to the high power LED tunnel lamp of claim 1 or 2 described perfect heat-dissipatings, it is characterized in that: be filled with thermal conductive insulation glue between described aluminium base (7) and the metal heat sink (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942134U CN202074362U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tunnel lamp with good heat radiation performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201942134U CN202074362U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tunnel lamp with good heat radiation performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202074362U true CN202074362U (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201942134U Expired - Fee Related CN202074362U (en) | 2011-06-10 | 2011-06-10 | High-power light emitting diode (LED) tunnel lamp with good heat radiation performance |
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|---|---|
| CN (1) | CN202074362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954411A (en) * | 2012-10-23 | 2013-03-06 | 安徽徽光电子科技有限公司 | LED (light emitting diode) tunnel lamp |
-
2011
- 2011-06-10 CN CN2011201942134U patent/CN202074362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954411A (en) * | 2012-10-23 | 2013-03-06 | 安徽徽光电子科技有限公司 | LED (light emitting diode) tunnel 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 |