CN201795459U

CN201795459U - LED lamp radiator

Info

Publication number: CN201795459U
Application number: CN201020547468XU
Authority: CN
Inventors: 金松山
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-28
Filing date: 2010-09-28
Publication date: 2011-04-13
Anticipated expiration: 2020-09-28

Abstract

The utility model discloses an LED (Light Emitting Diode) lamp radiator, which comprises a columnar heat conductor, heat transmission pieces, radiating fins and heat dissipation casings, wherein, a heat transmission core can be fixed or wedged in the columnar heat conductor when a semi-conductor is used for illuminating, and an LED lamp is fixed in the heat transmission core. Fins and a pair of the heat transmission pieces that are corresponding are formed on the outer periphery of the columnar heat conductor. The periphery of the LED lamp radiator can be in the shape of a round or a square or a polygon or a rectangle, so that proper shapes can be selected and used according to lamps with different specifications so as to improve the radiating effect. Heat quantity in the columnar heat conductor is rapidly transmitted to the heat dissipation casings or the fins through the heat transmission pieces, and then heat quantity is radiated to air through air convection, so that the LED lamp can operate within a permissible temperature range, light decay can be avoided, and the service life of the LED lamp can be prolonged. In addition, the LED lamp radiator has the advantages as follows: the LED lamp radiator is made of aluminium material with good thermal conduction, is made into a whole body through extrusion technology, and can also be used by cutting; the structure is compact, and the cost is lowered; and specifications and types are increased.

Description

A kind of LED lamp radiator

Technical field

The utility model belongs to the LED lighting technical field, particularly relates to a kind of LED lamp radiator.

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, 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 is used 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, the very fast generation light decay of meeting, even damage 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.The geometry of this structure radiator is fixing, and volume is big, and is poor with LED radiator structure matching; Hot pipe technique cost height, easy dust stratification dirt in the fin; Radiating effect is undesirable, adopts the radiator of aluminium ingot Digit Control Machine Tool processing, and its development cost are very high.

Summary of the invention

For solving the radiating effect of section bar heronsbill radiator, on the patent of invention of having authorized " upright post type LED heat radiator " basis (ZL200710046842.0), research and solve the unreasonable and unfavorable problem of radiating effect on the structure of this radiator, the utility model provides a kind of LED lamp radiator.

The technical scheme that its technical problem that solves the utility model adopts is: comprise column type heat carrier, heat transfer sheet and fin and radiating shell, when being used for semiconductor lighting, the heat transfer core that is fixed with the LED lamp is fixed or is filled in the column type heat carrier.Technical characterictic of the present utility model is: be provided with fin and a pair of heat transfer sheet that exists in corresponding mode in the outside of column type heat carrier.

When the LED lamp is used to throw light on,, the LED lamp is directly fixed in the column type heat carrier, should between LED lamp and column type heat carrier, applies one deck heat-conducting silicone grease simultaneously, so the heat of LED wick sheet is transmitted to rapidly in the column type heat carrier in order to reduce one deck thermal resistance.Sometimes for the designing requirement and the structural rationalization of the different demands of LED illuminating product, first perforate (hollow) in the column type heat carrier, the LED lamp is fixed on the heat transfer core, then the heat transfer core is filled up in the column type heat carrier.

In order to increase the surface area of this radiator, on heat transfer sheet one side, be connected with fin or fin is extended into radiating shell.Between a pair of heat transfer sheet, also can increase fin or not increase fin.In order to improve the smokestack suction effect, this radiating shell directly is connected with corresponding another radiating shell and has formed the enclosed type housing, can play the effect of convective cover.

The heat of column type heat carrier distributes in air by heat transfer sheet and the fin around it.When its fin was arranged with radiation mode, as if relatively shorter narrow near the fin of column type heat carrier and the distance between another fin, so the fin root produced hot short circuit phenomenon, promptly lose convection function.So, arrange with parallel mode at fin on heat transfer sheet one side and the fin on the column type heat carrier, improve radiating effect.Also can parallel or not parallel mode arrange with fin when as the case may be, fin becomes radiating shell.The arrangement of heat transfer sheet and fin is uneven.

In LED lamp diabatic process, in order to reduce thermal resistance, the heat transfer core is secured in the column type heat carrier with screw thread or the rivet mode jam-pack that closely cooperates.

LED lamp specification kind of light fixture when practical application is a lot, so can do circular, square, polygonal or rectangle at the peripheral shape of LED lamp radiator, so that the light fixture of different size can be selected suitable shape for use, improves radiating effect.

The beneficial effects of the utility model are, owing on column type heat carrier outside, be provided with a pair of heat transfer sheet and radiating shell thereof, heat in the column type heat carrier conducts rapidly by a pair of heat transfer sheet to be given on radiating shell or the fin, pass through cross-ventilation again, heat is dispersed in the air, assurance LED lamp is worked in the temperature range that allows, and prevents light decay, prolongs the life-span of LED lamp.Secondly advantage is, LED lamp radiator is to adopt the good aluminium material of thermal conductivity, is integral with extrusion process, and can cut use, compact conformation reduces cost, increase the specification kind, can satisfy multiple LED lightings such as exploitation shot-light, bulb lamp, ceiling embedded lamp, suspension lamp.

Description of drawings

Fig. 1 is the edge face structure figure of first kind of embodiment of the present utility model.

Fig. 2 is first vertical section structural map of Fig. 1.

Fig. 3 is second vertical section structural map of Fig. 1.

Fig. 4 is the edge face structure figure of second kind of embodiment of the present utility model.

Fig. 5 is the edge face structure figure of the third embodiment of the present utility model.

Fig. 6 is the edge face structure figure of the 4th kind of embodiment of the present utility model.

1. column type heat carriers among the figure, 2. heat transfer sheet, 3. heat transfer sheet, 201. fin, 202. radiating shells, 301. fin, 302. radiating shells, 4. fin, 5. heat transfer core, 6.LED lamp, 7. enclosed type housing.

The specific embodiment

By Fig. 1～shown in Figure 5, the utility model comprises column type heat carrier 1,

heat transfer sheet

2,3 and fin 201,301 and radiating shell 202,302, and when being used for semiconductor lighting, it is fixing or fill in the column type heat carrier 1 to be fixed with the heat transfer core 5 of LED lamp 6.Be provided with fin 4 and a pair of

heat transfer sheet

2 and 3 that exists in corresponding mode in the outside of column type heat carrier 1.

When LED lamp 6 is used to throw light on, in order to reduce one deck thermal resistance, as shown in Figure 3, LED lamp 6 is directly fixed in the column type heat carrier 1, one deck heat-conducting silicone grease should be applied simultaneously between LED lamp 6 and column type heat carrier 1, so the heat of the chip of LED lamp 6 is transmitted to rapidly in the column type heat carrier 1.Sometimes for the designing requirement and the structural rationalization of the different demands of LED illuminating product, perhaps reduce the material cost, first perforate (hollow) in column type heat carrier 1, LED lamp 6 is fixed on the heat transfer core 5, then heat transfer core 5 is filled up in column type heat carrier 1, as shown in Figure 2.

In order to increase surface area of the present utility model, on a side of

heat transfer sheet

2,3, be connected with fin 201,301 or fin 201,301 is extended into radiating shell 202,302, as shown in Figure 4.Between a pair of

heat transfer sheet

2 and 3, also can increase fin 4, whether increase to look according to actual needs and determine.In order to improve the smokestack suction effect, this radiating shell 202,302 directly is connected with corresponding another radiating shell and has formed enclosed type housing 7, as shown in Figure 5, can play the effect of convective cover.

The heat of column type heat carrier 1 distributes in air by

heat transfer sheet

2,3 and the fin 4 around it.When its fin 4 was arranged with radiation mode, as if relatively shorter narrow near the fin 4 of column type heat carrier 1 and the distance between another fin, so fin 4 roots produced hot short circuit phenomenon, promptly lose convection function.So, arrange with parallel mode at fin on heat transfer sheet one side and the fin on the column type heat carrier, improve radiating effect.According to actual conditions, see shown in Figure 6ly, the number of fin 201,301 and fin 4 was also along with increase when external diameter of the present utility model or sectional area increased.Fin 201,301 becomes radiating shell 202,302 o'clock and also can parallel or not parallel mode arrange with fin 4.The arrangement of

heat transfer sheet

2,3 and fin 4 is uneven.

In LED lamp diabatic process, in order to reduce thermal resistance, heat transfer core 5 is secured in the column type heat carrier 1 with screw thread or the rivet mode jam-pack that closely cooperates.

LED lamp 6 specification kind of this light fixture when practical application is a lot, so can do circular, square, polygonal or rectangle at peripheral shape of the present utility model, so that the light fixture of different size can be selected suitable shape for use, radiator structure design is compact more or rationalize and reduce cost thus, improves radiating effect.

LED lamp 6 can be that single high-power lamp or polycrystalline list LEDs or single several Assembled lamp all can adopt.

Claims

1. LED lamp radiator that is used for semiconductor lighting, comprise column type heat carrier (1), heat transfer sheet (2), (3) and fin (201), (301) and radiating shell (202), (302), when being used for semiconductor lighting, the heat transfer core (5) that is fixed with LED lamp (6) is fixed or is implanted in the column type heat carrier (1), it is characterized in that: be provided with fin (4) and a pair of heat transfer sheet (2) and (3) that exist in corresponding mode in the outside of column type heat carrier (1).

2. LED lamp radiator according to claim 1 is characterized in that: on heat transfer sheet (2), (3) one sides, can be connected with fin (201), (301) or radiating shell (202), (302); This radiating shell (202), (302) can connect into enclosed type housing (7) with corresponding another radiating shell.

3. LED lamp radiator according to claim 1 is characterized in that: arrange in parallel or not parallel mode with fin (4) fin (201) on heat transfer sheet (2), (3) one sides, (301); The arrangement of heat transfer sheet (2), (3) and fin (4) is uneven.

4. LED lamp radiator according to claim 1 is characterized in that: be fixed with heat transfer core (5) in column type heat carrier (1), LED lamp (6) is fixed on heat transfer core (5) and goes up or be directly fixed in the column type heat carrier (1).

5. LED lamp radiator according to claim 1 is characterized in that: in screw thread or the rivet mode that closely cooperates heat transfer core (5) jam-pack is firmly reduced thermal resistance in column type heat carrier (1).

6. LED lamp radiator according to claim 1 is characterized in that: can do circular, square, polygonal or rectangle at the peripheral shape of LED lamp radiator.