CN103047550A

CN103047550A - Light-emitting diode (LED) lamp with prolonged service life

Info

Publication number: CN103047550A
Application number: CN2011103094223A
Authority: CN
Inventors: 陈文雄; 周建安; 朱俊杰
Original assignee: Acbel Polytech Inc
Current assignee: Acbel Polytech Inc
Priority date: 2011-10-11
Filing date: 2011-10-13
Publication date: 2013-04-17
Also published as: TWI452228B; TW201315930A

Abstract

The invention provides a light-emitting diode (LED) lamp with prolonged service life. The LED lamp with prolonged service life comprises an electrical connecting seat, a heat dissipation module, an LED lamp plate and a heat insulating sleeve. An electrical cylinder is formed on the electrical connecting seat, a power circuit module is arranged in the electrical cylinder, an output capacitor is arranged on the circuit module, the heat dissipation module is sleeved on an outer wall face of the electrical cylinder, the LED lamp plate is covered on the heat dissipation module, and the heat insulating sleeve is arranged in the heat dissipation module and located between the LED lamp plate and the output capacitor of the electrical cylinder. When the LED lamp plate produces waste heat in use and hot-air convection exists in a caused gap, the heat insulating sleeve can insulate hot air and enables the hot air not to convect to surrounding of the output capacitor, the environmental temperature of the surrounding of the output capacitor is reduced remarkably, the shortened service life caused by overheat of the output capacitor is avoided, and the service life of the LED lamp is prolonged.

Description

Promote the LED light fixture in service life

Technical field

The present invention relates to a kind of LED light fixture, espespecially a kind of LED light fixture that promotes service life, can avoid the LED light fixture to cause the output capacitance on the LED lamp interior power circuit module to be heated the attenuating life-span because producing the internal heat convection current, to promote the service life of LED light fixture.

Background technology

The LED lamp is the product of New Times since its both power saving and luminous power were high, therefore slowly replaced in many aspects the role of conventional bulb or Electricity-saving lamp bulb, become the leading role of illuminating equipment.Although the LED light fixture has power saving and the high advantage of luminous power, but the LED lamp is also thermo-labile, too high temperature can make the LED lamp produce the light decay phenomenon, therefore, the LED light fixture all can be equipped with a radiating seat, and radiating seat is usually used the fast metal of heat-transfer rate and is made, conduct to fast dissipation on the radiating seat with the used heat that the LED lamp is produced, please cooperate and consult Fig. 7, existing LED light fixture mainly forms an electric cylinder 71 at an electric connection socket 70 tops, and a sheathed radiating module 72 is in the outside wall surface of this electric cylinder 71, make this electric connection socket 70 and this radiating module 72 consist of a lamp socket, again in these electric cylinder 71 interior power circuit modules 73 that arrange, 73 of this power circuit modules and this electric connection socket 71 are electrically connected, and lid establishes a LED lamp plate 74 on this radiating module 72, and this LED lamp plate 74 with should be electric between the cylinder 71 formation one interval also be electrically connected with this power circuit module 73 by plural electric wire 75, and be provided with plural LED crystal 76 on the LED lamp plate 74; During use, can be with this electric connection seat 70 be connected to mains supply and light plural LED crystal 76 on this LED lamp plate 74, when lighting this plural number LED crystal after 76 a period of times, each LED crystal 76 can produce used heat, at this moment, namely can with heat energy by LED lamp plate 74 conduct on this radiating module 72 with air heat exchange after dissipation, consist of the interval then between the electric cylinder 71 of this LED lamp plate 74 and this because the power circuit modules 73 in should electric cylinder 71 can produce heat energy equally, this interval can avoid thermal energy conduction that power circuit module 73 produces to this LED lamp plate 74.

Though yet the used heat that above-mentioned LED light fixture can make the LED crystal 76 on the LED lamp plate 74 produce dispels the heat by radiating module 72, be unlikely to overheated generation light decay, but the LED crystal 76 mainly with this LED lamp plate 74 when using owing to the LED light fixture shines down, therefore, this power circuit module 73 can be positioned at these LED lamp plate 74 tops in use relatively, thermal convection principle based on air, the used heat part that LED crystal 76 produces on the LED lamp plate 74 can focus in the electric cylinder 71 by the cross-ventilation mode, another part then can be transmitted on the radiating module 72, so that the heat energy that whole LED light fixture produces all concentrates on around this power circuit module 73, the heat energy that power circuit module 73 is produced is difficult for shedding, and be in for a long time in the hot environment, cause the electronic component on this power circuit module 73 to cross cause thermal damage, in general, on this power circuit module 73 output capacitance 731 must be set, and this output capacitance 731 needs only temperature on every side above 90 ℃, life-span can decline to a great extent, and the output capacitance 731 of this power circuit module 73 is considered and must be arranged on these LED lamp plate 74 hithermost positions based on circuit design, nearest from pyrotoxin, temperature is soaring fast, therefore, output capacitance on the existing LED light fixture often more is not durable than LED crystal 76, and the LED light fixture damages on the contrary because of due to power circuit module 73 damages, and power circuit module 73 usually and electric connection seat 70 directly be welded to connect, can't change, namely scrap once damage whole LED light fixture, so, existing LED light fixture is quite undesirable, needs to some extent improvement.

Summary of the invention

Because the power circuit module of above-mentioned existing LED light fixture is held flimsy technological deficiency, main purpose of the present invention proposes a kind of LED light fixture that promotes service life, the used heat that the LED light fixture is produced can not focus on the output capacitance on the power circuit module, can prevent from exporting the electric overheated whole LED light fixture damage that causes.

For achieving the above object, the technical solution used in the present invention is:

A kind of LED light fixture that promotes service life is characterized in that, includes:

One electric connection seat is provided with an electric cylinder on it, and should have a nozzle by electric cylinder, and is provided with a power circuit module that is electrically connected with this electric connection seat in this electric, is provided with an output capacitance on this power circuit module;

One radiating module is sheathed on the electric drum outer wall face of this electric connection seat, and is higher than this electric cylinder nozzle;

One LED lamp plate is covered on this radiating module, and and this electric cylinder nozzle between be formed with the interval, and be electrically connected with this power circuit module; Be provided with plural LED crystal on this LED lamp plate again;

One collet is arranged in this radiating module, and between the output capacitance and this LED lamp plate of this power circuit module, and the material of collet is heat insulation material.

Be provided with plural electric wire on this power circuit module, and this collet is sheathed on the nozzle of electric cylinder in this radiating module, makes this electric cylinder nozzle sealing, and be formed with a perforation in the top, be connected to this LED lamp plate after passing for the electric wire on this power circuit module.

This collet has an end face, and this end face is the plane.

This collet has an end face, and this end face is taper seat.

This collet has an end face, and this end face is arc surface.

This electric cylinder is formed with external screw thread near nozzle, and this collet be circular, and the external screw thread of corresponding electric cylinder is formed with internal thread, with this electric screw togather fixing.

The thermal conductivity factor of the material of this collet is lower than 10.

The material of this collet can be polypropylene or epoxy resin.

This radiating module be further in to should forming a bulge loop in LED lamp plate outer rim place, and is arranged in this bulge loop with the lampshade tight fit that an external diameter mates this bulge loop internal diameter, and this LED lamp board cage is located in the lampshade.

This radiating module has an outer peripheral face and an inner peripheral surface, be formed with complex cooling fin on its outer peripheral face, then be formed with an internal projecting ring on the inner peripheral surface, this internal projecting ring has an apical ring face, and be formed with plural screw on this apical ring face, and this LED lamp plate is resisted against on the internal projecting ring apical ring face of this radiating module, its periphery respectively to should the apical ring face plural number screw extend internally and form plural shrinkage pool, and with plural bolt pass respectively this plural number shrinkage pool and with corresponding screwhole spiro bonding, so that this LED lamp plate is fixed on the internal projecting ring of this radiating module.

The invention described above forms hot-air convection with output capacitance in isolated this LED lamp plate of a collet and the electric cylinder, make used heat that this plural number LED crystal produces not can by cross-ventilation focus on output capacitance around, prevent that output capacitance on the power circuit module is overheated and reduce the life-span, reach the service life that promotes the LED light fixture.

Description of drawings

Fig. 1 is a preferred embodiment of the present invention combination stereogram;

Fig. 2 is Fig. 1 three-dimensional exploded view;

Fig. 3 is Fig. 2 fragmentary cross-sectional view;

Fig. 4 is another preferred embodiment profile of the present invention;

Fig. 5 is the another preferred embodiment profile of the present invention;

Fig. 6 is the exploded view that the present invention arranges lampshade;

Fig. 7 is the fragmentary cross-sectional view of existing LED light fixture.

Description of reference numerals: 10 electric connection seats; 11 electric cylinders; 12 nozzles; 13 power circuit modules; 131 output capacitances; 14 electric wires; 15 external screw threads; 20 radiating modules; 21 fin; 22 internal projecting rings; 221 apical ring faces; 222 screws; 23 bulge loops; 24 lampshades; The 30LED lamp plate; The 31LED crystal; 32 shrinkage pools; 33 bolts; 40 collets; 41 perforation; 42 internal threads; 70 electric connection seats; 71 electric cylinders; 72 radiating modules; 73 power circuit modules; 731 output capacitances; The 74LED lamp plate; 75 electric wires; The 76LED crystal.

The specific embodiment

See also Fig. 1 to Fig. 3, the LED light fixture that the present invention promotes service life includes:

One electric connection seat 10, be provided with an electric cylinder 11 on it, and this electric cylinder 11 has a nozzle 12, and be provided with a power circuit module 13 that is electrically connected with this electric connection seat 10 in this electric cylinder 11, be provided with an output capacitance 131 on this power circuit module 13 in present embodiment, be provided with plural electric wire 14 on this power circuit module 13, and this electric cylinder 11 is formed with external screw thread 15 near nozzle 12;

One radiating module 20, be sheathed on electric cylinder 11 outside wall surface of this electric connection seat 10, and be higher than this electric cylinder 11 nozzles 12, in present embodiment, this radiating module 20 has an outer peripheral face and an inner peripheral surface, is formed with complex cooling fin 21 on its outer peripheral face, then is formed with an internal projecting ring 22 on the inner peripheral surface, this internal projecting ring 22 has an apical ring face 221, and is formed with plural screw 222 on this apical ring face 221;

One LED lamp plate 30, be covered on this radiating module 20, and and this 10 in electric cylinder is formed with the interval, and be electrically connected with this power circuit module 13 by this plural number electric wire 14, again, be provided with plural LED crystal 31 on this LED lamp plate 30, in present embodiment, this LED lamp plate 30 is resisted against on the internal projecting ring 22 apical ring faces 221 of this radiating module 20, its periphery forms respectively plural shrinkage pool 32 to should apical ring face 221 plural screws 222 extending internally, and pass respectively this plural number shrinkage pool 32 and screw togather with corresponding screw 322 with plural bolt 33, this LED lamp plate 30 is fixed on the internal projecting ring 22 of this radiating module 20;

One collet 40, be arranged in this radiating module 20, and between this electric cylinder 10 and this LED lamp plate 20, and the material of collet is heat insulation material, in present embodiment, this collet 40 is sheathed on the nozzle 12 of these radiating module 20 interior electric cylinders 11, make this electric cylinder 11 nozzles 12 sealings, this collet 40 is formed with a perforation 41 in the top again, be connected to this LED lamp plate after passing for the electric wire 14 on this power circuit module 13, and this collet 40 be circular, and corresponding electric 11 external screw thread 15 is formed with internal thread 42, to screw togather fixing with this electric cylinder 11, again, this collet 40 has an end face, and this end face can be the plane, or can be such as Fig. 4 and shown in Figure 5, be respectively taper seat and arc surface, again, these collet 40 materials can preferably select thermal conductivity factor to be lower than 10 material, have better effect of heat insulation, the material of this collet 40 can be polypropylene (PP) or epoxy resin (EPOXY).

Please further consult Fig. 6, the radiating module 20 of above-mentioned LED light fixture can be in to forming a bulge loop 23 in LED lamp plate 30 outer rim places, and be arranged in this bulge loop 23 with lampshade 24 tight fits that an external diameter mates these bulge loop 23 internal diameters, this LED lamp plate 30 is covered in the lampshade 24.

When being electrically connected 10, LED light fixture of the present invention is electrically connected with the city, and make this LED lamp plate 30 down, and plural LED crystal 31 conduct of lighting on this LED lamp plate 30 is thrown light on, after a period of time, this plural number LED crystal 31 can produce heat, namely can be every forming hot-air convection between between LED lamp plate 30 and the collet 40, at this moment, the convection current of hot-air is subject to blocking of collet 40, can not enter in this electric cylinder 11, can block hot-air be concentrated to output capacitance 131 arround, promote the life-span of output capacitance, reach and promote LED light fixture service life, and because gas is slow to the speed of object with thermal energy conduction by conduction pattern, add collet 20 and preferably select thermal conductivity factor to be lower than 10 material making, can further make hot-air almost heat energy can't be passed to collet 20 with conduction pattern, more effectively prevent hot-air impact electric cylinder 11 internal power circuit modules 13 and output capacitance 131; Again, if these collet 20 end faces preferably are taper shape or circular arc, in use, when the past rising of LED lamp plate 40 hot-airs, because the middle highlight of taper shape or circular arc collet 20 end faces, hot-air can disperse toward scattering to radiating module 30 inner peripheral surfaces all around from central authorities along the end face of collet, makes hot-air pass through radiating module 30 heat radiations of good heat conduction effect; Further improve again the radiating effect of whole LED light fixture.

In sum, the present invention can make the not impact of heated air convection current of output capacitance on the power circuit module because being provided with this collet, significantly promotes service life, to prevent that with, the present invention output capacitance from crossing cause thermal damage and promoting the speed of power circuit module heat dissipating.

Claims

1. a LED light fixture that promotes service life is characterized in that, includes:

2. the LED light fixture in lifting according to claim 1 service life, it is characterized in that: be provided with plural electric wire on this power circuit module, and this collet is sheathed on the nozzle of electric cylinder in this radiating module, make this electric cylinder nozzle sealing, and be formed with a perforation in the top, be connected to this LED lamp plate after passing for the electric wire on this power circuit module.

3. the LED light fixture in lifting according to claim 2 service life, it is characterized in that: this collet has an end face, and this end face is the plane.

4. the LED light fixture in lifting according to claim 2 service life, it is characterized in that: this collet has an end face, and this end face is taper seat.

5. the LED light fixture in lifting according to claim 2 service life, it is characterized in that: this collet has an end face, and this end face is arc surface.

6. LED light fixture in each described lifting service life in 5 according to claim 1, it is characterized in that: this electric cylinder is formed with external screw thread near nozzle, and this collet is circular, and the external screw thread of corresponding electric cylinder is formed with internal thread, to screw togather fixing with this electric cylinder.

7. the LED light fixture in lifting according to claim 6 service life, it is characterized in that: the thermal conductivity factor of the material of this collet is lower than 10.

8. the LED light fixture in lifting according to claim 7 service life, it is characterized in that: the material of this collet can be polypropylene or epoxy resin.

9. the LED light fixture in lifting according to claim 8 service life, it is characterized in that: this radiating module is further in to forming a bulge loop in LED lamp plate outer rim place, and be arranged in this bulge loop with the lampshade tight fit that an external diameter mates this bulge loop internal diameter, this LED lamp board cage is located in the lampshade.

10. the LED light fixture in lifting according to claim 9 service life, it is characterized in that: this radiating module has an outer peripheral face and an inner peripheral surface, be formed with complex cooling fin on its outer peripheral face, then be formed with an internal projecting ring on the inner peripheral surface, this internal projecting ring has an apical ring face, and be formed with plural screw on this apical ring face, and this LED lamp plate is resisted against on the internal projecting ring apical ring face of this radiating module, its periphery respectively to should the apical ring face plural number screw extend internally and form plural shrinkage pool, and with plural bolt pass respectively this plural number shrinkage pool and with corresponding screwhole spiro bonding, so that this LED lamp plate is fixed on the internal projecting ring of this radiating module.