CN202302936U

CN202302936U - Power supply isolation type LED (light emitting diode) lamp

Info

Publication number: CN202302936U
Application number: CN2011204473078U
Authority: CN
Inventors: 金松山
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-29
Filing date: 2011-10-29
Publication date: 2012-07-04
Anticipated expiration: 2021-10-29

Abstract

The utility model discloses a power supply isolation type LED (light emitting diode) lamp which comprises a metal lamp cap, an insulated shell, an LED power supply panel, a heat insulation board, a heat transfer board, a cross type radiator and an LED aluminum base plate. When the LED lamp is assembled, the LED aluminum base plate fixed with an LED lamp is fixed on a fixing hole of the aluminum base plate of the heat transfer board through bolts. Fins, heat-conducting fins and heat-dissipating fins are arranged above and around the heat transfer board, the heat insulation board is arranged on the cross type radiator, and the heat insulation board is used for isolating the LED power supply panel. The power supply isolation type LED lamp has the advantages that heat isolation between the LED power supply panel and the cross type radiator enables the temperature of the LED power supply panel to be lowered, so that the service life of an electrolytic capacitor can be ensured and the work stability can be improved, and thus the power supply isolation type LED lamp is applied to areas with dust, high ambient temperature, high attitude working environment and difficult maintenance, such as corridors and underground garages.

Description

Isolated from power type LED light fixture

Technical field

The utility model belongs to the LED lighting technical field, particularly relates to a kind of isolated from power type LED light fixture.

Background technology

The not only energy-saving and environmental protection of LED lighting engineering, also have the life-span long, volume is little, safe, photochromic characteristics such as abundant, easy to control.The LED illumination is the key core technology of little by little having grasped few in number, has market demand prospect, possesses the strategic new industry that the resource energy consumption is low, drive characteristics such as coefficient is big, job opportunity is many, comprehensive benefit is good.It has not only brought the revolution of another lighting source after incandescent lamp, fluorescent lamp on the illumination history, and is the important channel of energy-saving and emission-reduction, will bring into play more importantly effect to the development low-carbon economy.Therefore, the relevant application product of LED illumination is all done one's utmost to develop by each manufacturer.

But there is a very big heat radiation difficult problem in the LED lamp.Heat dissipation problem is the bottleneck of LED lamp in illumination application always, is never effectively solved.LED has relatively high expectations to heat dissipation technology, and the temperature of LED wick sheet sharply rises when the effect of radiator is bad, can produce light decay very soon, even damages led chip.The temperature of the high more chip of the heat flow density of led chip rises fast more, has only the heat dissipation technology that solves LED, delays the light decay of LED to greatest extent, just can embody long advantage of life-span, makes LED become real in the large-area applications of indoor and outdoor lighting.

The heat radiation of current LED lamp or module is adopted die-casting die and section bar heronsbill radiator mostly or is adopted aluminium ingot Digit Control Machine Tool processing heat radiator and hot pipe technique.This die-casting die radiator heat-dissipation weak effect, volume is also bigger.The geometry of heronsbill structure radiator is fixing, and fin density is little, is difficult for heat radiation, is prone to dust stratification dirt in the fin.

Driving power on the existing LED light fixture is contained in the radiator the inside, does not carry out insulation and heat insulating construction measure, and causes that the heat of LED driving power itself has increased, and just reduced the service life of this power supply.Produce simultaneously the raising of the temperature rise of radiator again, cause the temperature rising of LED lamp and produce serious light decay.

Summary of the invention

Be the heat dissipation problem of solution LED driving power and the electric insulation and the heat-insulating problem of radiator, the utility model provides a kind of isolated from power type LED lamp.

The utility model solves the technical scheme that its technical problem adopted: comprise metallic lamp holder, insulation crust, LED power panel, thermal insulation board, heat transfer plate, chiasma type radiator and LED aluminium base.When forming the LED light fixture of semiconductor lighting, with the LED aluminium base that is fixed with the LED lamp, with bolt above the aluminium base fixing hole of heat transfer plate.

The technical characterictic of the utility model is: on heat transfer plate He on every side, be provided with fin, conducting strip and fin, on the chiasma type radiator, be placed with thermal insulation board, and isolated the LED power panel with this thermal insulation board.

Be arranged between 2 conducting strips at the fin on the heat transfer plate, fin has parallel or uneven arrangement with fin; The not parallel arrangement of fin and fin, but with fin between parallel or uneven arrangement are arranged.

Also have side view at the fin of heat transfer plate and fin be from hem width begin down to narrow down; The side view of fin is that narrow beginning down broadens from the top, constitutes chiasma type radiator shape with this.

The LED power panel is surrounded by metallic lamp holder, insulation crust and thermal insulation board, and the fixing hole of insulation crust and thermal insulation board are connected with screw or bayonet socket.

The unsettled pillar of several that below thermal insulation board, connect is positioned over above the chiasma type radiator, and with bolt above screw hole; The fairlead cross section that below thermal insulation board, connects, through the wire hole that has on the heat transfer plate, should be concordant with the plane of LED aluminium base, and seal heat transfer plate by lampshade.

Also have the LED power panel to be electrically connected with metallic lamp holder, the direct current output electric wire of LED power panel, the fairlead that process is connected with the thermal insulation board bottom surface and the wire hole of heat transfer plate are electrically connected with the LED aluminium base; The heat of LED power panel distributes through thermovent on the insulation crust or metallic lamp holder.

LED light fixture specification kind of light fixture when practical application is a lot, so the outside geomery of chiasma type radiator can be changed, so that the light fixture of different size can be selected suitable shape for use, improves radiating effect.

The beneficial effect of the utility model is; Owing to closely be connected with the chiasma type radiator at heat transfer plate; Reduced the thermal resistance of heat transfer plate; The heat of LED aluminium base is conducted to fin, fin and fin through heat transfer plate very soon, and carry out heat loss through convection, thereby reduce the temperature rise that the LED lamp produces with surrounding air.On the chiasma type radiator, be provided with thermal insulation board, LED power panel and radiator heat are isolated and are independent of each other thus, guarantee the security performance of light fixture; And the temperature of reduction LED power panel, the service life in prolongation electronic devices and components life-span, particularly electrolytic capacitor; Improved its functional reliability; Being suitable for corridor and underground garage etc. has dust, and environment temperature is higher, and the occasion of high-altitude and maintenance difficult is used.

Owing to isolate metals such as power line and radiator with fairlead, the worry that does not have electric shock when therefore light fixture being installed with use in the electric shock phenomenon, and be suitable for the electric insulation and hot isolation of high voltage LED application luminaire.

Secondly advantage is, this chiasma type heat spreader structures is compact, adopts the good aluminium material of thermal conductivity, is integral with extrusion process, reduces processing cost.

Description of drawings

Fig. 1 is the section of structure of an embodiment of the utility model.

Fig. 2 is the structural representation of the chiasma type radiator of Fig. 1 embodiment.

Fig. 3 is the structure vertical view of Fig. 2 chiasma type radiator.

Fig. 4 is the structure upward view of Fig. 2 chiasma type radiator.

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

Fig. 6 is that the A-A of Fig. 4 is to cutaway view.

1. metallic lamp holders among the figure, 2. insulation crust, 201. thermovents, 202. fixing holes, 3.LED power panel, 4. thermal insulation board; 401. unsettled pillar, 402. fairleads, 5. fin, 501. screw holes, 6. heat transfer plate, 601. aluminium base fixing holes; 602. wire hole, 7.LED aluminium base, 8. lampshade, 9. chiasma type radiator, 10. conducting strip, 1001. fins; 1002. fin, 11. conducting strips, 1101. fins, 1102. fins, 12. fin.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is done further detailed explanation.

The utility model is in order to overcome the very big heat radiation difficult problem that existing LED light fixture is never effectively solved; And the LED driving power on the LED light fixture is contained in radiator the inside and electronic devices and components have received warming-up effect and electric insulation safety problem; The utility model provides a kind of isolated from power type LED light fixture; The heat radiation of this LED light fixture and heat-proof device have been taked the rational structure measure, and electric insulation and adiabatic problem are effectively solved.

By Fig. 1～shown in Figure 6, the utility model comprises metallic lamp holder 1, insulation crust 2, LED power panel 3, thermal insulation board 4, heat transfer plate 6, staggered form radiator 9 and LED aluminium base 7.When realizing the lighting LED light fixture; The LED lamp of on LED aluminium base 7, burn-oning earlier and choosing; Coated with thermally conductive silicone grease on the bottom surface of heat transfer plate 6 is placed on LED aluminium base 7 above the heat-conducting silicone grease then, with bolt above aluminium base fixing hole 601; To reduce thermal contact resistance with this technology, make the heat of LED aluminium base 7 be convenient to pass to rapidly on the heat transfer plate 6.On heat transfer plate 6 He on every side, be provided with fin 5, conducting strip 10 and fin 12, so that carry out heat loss through convection with surrounding air.

Be arranged between 2 conducting strips at the fin on the heat transfer plate 65, between fin 5 and

fin

1001,1002,1101 and 1102 parallel or uneven arrangement arranged; Fin 12 and fin 5 not parallel arrangements, but with fin 1001,1002,1101 and 1102 between parallel or uneven arrangement are arranged.

Also have side view in the fin on the heat transfer plate 65 and

fin

1001,1002,1101 and 1102 be from hem width begin down to narrow down; The side view of fin 12 is that narrow beginning down broadens from the top, constitutes chiasma type radiator shape with this.

LED power panel 3 is electrically connected with metallic lamp holder 1, the direct current output electric wire of LED power panel 3, and fairlead 402 and wire hole 602 through thermal insulation board 4 bottom surfaces connect are electrically connected with LED aluminium base 7; The heat of LED power panel 3 distributes through thermovent 201 or the metallic lamp holder 1 that insulation crust 2 is provided with in addition.

Metallic lamp holder 1 in the utility model, insulation crust 2 and thermal insulation board 4 surround LED power panel 3, and utilize the fixing hole 202 of insulation crust 2 to be connected with screw or bayonet socket with thermal insulation board 4.Several unsettled pillars 401 that below thermal insulation board 4, connect are positioned over above the chiasma type radiator 9, and with bolt above screw hole 501; Fairlead 402 cross sections that below thermal insulation board 4, connect; Through the wire hole 602 that has on the heat transfer plate 6, should be concordant with the plane of LED aluminium base 7, and seal heat transfer plate 6 by lampshade 8; In order to avoid prevent the dust land, solved the glare problem when the LED lamp is luminous simultaneously.

Claims

1. isolated from power type LED light fixture; Comprise metallic lamp holder, insulation crust, LED power panel, thermal insulation board, heat transfer plate, chiasma type radiator and LED aluminium base, when forming the LED light fixture, with the LED aluminium base that is fixed with the LED lamp; With bolt above the aluminium base fixing hole of heat transfer plate; It is characterized in that: on heat transfer plate He on every side, be provided with fin, conducting strip and fin, on the chiasma type radiator, be placed with thermal insulation board, and isolated the LED power panel with this thermal insulation board.

2. isolated from power type LED light fixture according to claim 1 is characterized in that: be arranged between 2 conducting strips at the fin on the heat transfer plate, between fin and the fin parallel or uneven arrangement arranged; The not parallel arrangement of fin and fin, but with fin between parallel or uneven arrangement are arranged.

3. isolated from power type LED light fixture according to claim 1 is characterized in that: the side view of fin on the heat transfer plate and fin be from hem width begin down to narrow down; The side view of fin is that narrow beginning down broadens from the top, constitutes chiasma type radiator shape with this.

4. isolated from power type LED light fixture according to claim 1 is characterized in that: the LED power panel is surrounded by metallic lamp holder, insulation crust and thermal insulation board, and the fixing hole of insulation crust and thermal insulation board are connected with screw or bayonet socket.

5. isolated from power type LED light fixture according to claim 1, it is characterized in that: the unsettled pillar of several that below thermal insulation board, connect is positioned over above the chiasma type radiator, and with bolt above screw hole; The fairlead cross section that below thermal insulation board, connects, through the wire hole that has on the heat transfer plate, should be concordant with the plane of LED aluminium base, and seal heat transfer plate by lampshade.

6. isolated from power type LED light fixture according to claim 1; It is characterized in that: the LED power panel is electrically connected with metallic lamp holder; The direct current output electric wire of LED power panel, the fairlead that process is connected with the thermal insulation board bottom surface and the wire hole of heat transfer plate are electrically connected with the LED aluminium base; The heat of LED power panel distributes through thermovent on the insulation crust or metallic lamp holder.