CN201059525Y

CN201059525Y - Heat radiating device of LED luminous module group

Info

Publication number: CN201059525Y
Application number: CNU2007201515937U
Authority: CN
Inventors: 梁见国
Original assignee: Aeon Lighting Tech Inc
Current assignee: Aeon Lighting Tech Inc
Priority date: 2007-06-12
Filing date: 2007-06-12
Publication date: 2008-05-14
Anticipated expiration: 2017-06-12

Abstract

A radiator of a LED lighting module comprises a radiation unit which is provided with a groove and a perforation; a LED lighting module which is connected with a base plate by luminous crystal grains; and a radiation base; wherein, the base plate is filled and bonded on the bottom surface of the radiation base through a heat conductive layer, and the radiation base is fixedly connected in the groove of the radiation unit. As the radiation base and the radiation unit are fixedly connected into a whole, the heat of the base plate is uniformly and efficiently transferred to the radiation base via the heat conductive layer, then transferred to the heat radiation unit through the radiation base, and then the heat is rapidly and directly conducted through the heat conductive layer, the high temperature generated by the LED can be conducted and dispersed, thereby improving the stability of the service life of the LED and the luminous efficiency to increase the radiation efficiency of the whole LED lighting module.

Description

The heat abstractor of LED illuminating module

Technical field

The utility model relates to a kind of heat abstractor of LED illuminating module, the heat abstractor that particularly a kind of its radiating efficiency of LED illuminating module can effectively promote.

Background technology

Existing LED illuminating module, its typical example such as the novel patent case of TaiWan, China certificate number M297441 LED projection source module, described case has following defective to manifest under long-term the use:

(1) .LED unit 2 is accommodation spaces that fit into main body 1 11 of contact, because the cooperation of two elements, its contact-making surface can have the gap fully and produces, for example the contact surface of Lian Jieing is looked into down in micro-sight, pore, machining tool marks are all arranged and adjust flatness to produce, so 2 heat conduction of LED unit are not good in the heat conduction efficiency of main body 1.

(2). main body 1 is to embed in the central perforation of heat-sink unit 3 with the direction of extrusion, because main body 1 is the contact with squash type, the circumferential surface of main body 1 is difficult to contact with the contact interface of heat-sink unit 3 is linear fully, its crux is that the circumferential surface of main body 1 has pore, machining tool marks and adjusts the flatness generation under microcosmic, cause main body 1 can't effectively transmit the heat temperature and give fin; And if each its linear profiling of sheet fin of main body 1 central perforation has error, for example as long as wherein a slice fin is crooked, linear profiling promptly can't effectively touch main body 1 circumferential edge, so the warm efficient of conduction heat is to have a greatly reduced quality.

(3). heat-sink unit 3 is to be formed by radial a plurality of fin set, its outer surface does not have any fixture, cause heat-sink unit 3 to be subjected to the collision as the ground of dropping, its full wafer fin is that distortion further makes main body 1 circumferential edge and the fin linear profiling of part produce loose fit, causes effectively heat conduction.

When (4) .LED unit 2 was luminous, the transmission of its light wave did not have any control, and the zone that is illuminated is difficult to control the required light image of designer, and for example illuminated place is required it may is that light beam will be concentrated, or light will be disperse state, and described LED unit 2 can't effectively be controlled.

Occuping above-mentioned existing defective, how to promote the radiating efficiency of LED illuminating module and the stability of heat radiation, is the problem that this case is studied intensively.

Summary of the invention

Main purpose of the present utility model, promptly at the heat abstractor that a kind of LED illuminating module is provided, be to be bonded with heat-conducting layer between the basal surface of mat LED light-emitting substrate and the cooling base, the Re Wende of LED light-emitting substrate effectively conducted to radiating seat, to promote the radiating efficiency of LED illuminating module.

A purpose more of the present utility model, promptly at the heat abstractor that a kind of LED illuminating module is provided, offer the groove that conforms to the radiating seat shape in heat-sink unit central authorities, described groove has linear groove side wall surface and linear level trough wall, the periphery surface of radiating seat is to be welded on the linear groove side wall surface, and the basal surface of radiating seat is to be welded on the linear level trough wall, and further bringing into play radiating seat can efficient and stable conducts the heat temperature to heat-sink unit.

A purpose more of the present utility model promptly at the heat abstractor that a kind of LED illuminating module is provided, is tied an outer ring body in the embedding of heat-sink unit peripheral rim, to promote the force intensity that is subjected to of heat-sink unit, further brings into play heat-sink unit just in case also can not be out of shape by collision.

A purpose more of the present utility model, promptly in the quantity that increases fin, to increase the area of heat radiation, increase the contact area of radiating fin and air, to reach better heat radiation function, and a kind of heat abstractor of LED illuminating module is provided, above the LED illuminating module, connect lens, with the focusing of control LED luminescent spectrum or defocus.

To achieve these goals, the utility model provides a kind of heat abstractor of LED illuminating module, it is characterized in that, comprise: the plurality of fins that is radial arrangement, be welded to one another and be combined into a heat-sink unit, be provided with a groove for welding in heat-sink unit central authorities, groove central authorities are provided with perforation, the groove side wall surface of groove is to form the linear groove side wall surface, and the linear groove wall is formed on the bottom of groove; The LED illuminating module comprises: the luminescent grain more than at least one or is to be linked on the substrate; Cooling base, have article containing space, the basal surface of article containing space and substrate base surface, filling in the gap of its both linking to link has heat-conducting layer, the outer surface of cooling base bottom is to be welded in the level of linearity trough wall surface, and the outer peripheral face of cooling base is to be welded on the linear groove side wall surface.

The advantage that the utlity model has: be to be bonded with heat-conducting layer between the basal surface of mat LED light-emitting substrate and the cooling base, the Re Wende of LED light-emitting substrate effectively conducted to radiating seat, to promote the radiating efficiency of LED illuminating module; Offer the groove that conforms to the radiating seat shape in heat-sink unit central authorities, described groove has linear groove side wall surface and linear level trough wall, the periphery surface of radiating seat is to be welded on the linear groove side wall surface, and the basal surface of radiating seat is to be welded on the linear level trough wall, and further bringing into play radiating seat can efficient and stable conducts the heat temperature to heat-sink unit.

Description of drawings

Fig. 1 is the utility model part exploded perspective view;

Fig. 2 is the sectional drawing of the utility model heat-sink unit;

Fig. 3 is the utility model part exploded perspective view again;

Fig. 4 is vertical sectional drawing of the present utility model;

Fig. 5 is a combination stereogram of the present utility model;

Fig. 6 is the partial enlarged drawing that the utility model substrate, cooling base mat heat-conducting layer link;

Fig. 7 is the partial enlarged drawing again that the utility model substrate, cooling base mat heat-conducting layer link.

Description of reference numerals: heat-sink unit 10; All

rims

11,64; Outer ring body 111; Fin 12; Groove 14; Perforation 141,422,601; Groove side wall surface 142; Trough wall surface 143; End connecting portion 15; Illuminating module 30; Crystal grain 32; Substrate 34;

Connector

342,72; Tool marks surface 35,45; Cooling base 40; Article containing space 42; Basal surface 421,341; Pore 423,343; Outer peripheral face 43; Outer surface 44; Lamp holder 50; Openend 52; Annular groove 521; Tank 53; Joint 56; Heat-conducting layer 60; Surface 62; Lens 65; Carbon fiber powder 66; Power supply unit 70; Lead 71; Upper face 74; Fixed disk 75; Sleeve 90; Base plate 92; Clip lug 921.

The specific embodiment

As Fig. 1, Fig. 2, shown in Figure 3, the utility model is at the heat abstractor that a kind of LED illuminating module is provided, and is to comprise:

The plurality of fins 12 that is radial arrangement, be welded to one another and be combined into a heat-sink unit 10, be provided with a groove 14 for welding in heat-sink unit 10 central authorities, groove 14 central authorities are provided with perforation 141, the groove side wall surface 142 of groove 14 is to form the linear groove side wall surface, and linear groove wall 143 (side that the linearity here refers to most fins that form wall is a linearity) is formed on the bottom of groove 14; LED illuminating module 30 (as shown in Figure 3) comprising: the luminescent grain 32 more than at least one is to be linked on the substrate 34; Cooling base 40 has article containing space 42, and one deck heat-conducting layer 60 is filled the basal surface 421 that is connected in article containing space 42; The basal surface 341 of substrate 34 is to fill to be connected on heat-conducting layer 60 surfaces (as shown in Figure 1), the outer surface 44 of cooling base 40 bottoms is to be welded in level of linearity trough wall surface 143, and the outer peripheral face 43 of cooling base 40 is to be welded on the linear groove side wall surface 142 (as shown in Figure 4).

Wherein the appearance of heat-sink unit 10 is tapered shapes, and its all rim 11 at maximum outside diameter is had outer ring body 111 by interlocking.

Wherein be positioned at substrate 34 tops and be equiped with lens 65, described lens 65 have the surface 62 of convex or arcs of recesses, and all rims 64 of lens 65 are to be installed in all rims of groove of groove 14; The groove side wall surface 142 of its further groove 14 is inclination to form cone-shaped; The outer peripheral face 43 of cooling base 40 is the bullet of inclination, and outer peripheral face 43 is to be welded in (as shown in Figure 4) on the groove side wall surface 142.

Wherein the bottom center of cooling base 40 is provided with perforation 422;

It is 422,601 corresponding that the central authorities of heat-conducting layer 60 are provided with 601, two perforation of perforation, 601,422 passes from boring a hole with the electrical cnnector 342 of substrate 34;

Power supply unit 70 is installed in the lamp holder 50 inner tanks 53, its electrical wire 71 external a connector 72, and described connector 72 plugs with the connector 342 of substrate 34.

A sleeve 90 wherein, its bottom links has base plate 92, sleeve 90 to penetrate the perforation 141 of heat-sink unit 10, and base plate 92 bilateral limits are respectively equipped with clip lug 921; One fixed disk 75 is to be fixed on the upper face 74; The clip lug 921 of base plate 92 is to be connected in the default annular groove 521 of lamp holder 50 its openend 52 lower edges (as shown in Figure 3);

The end connecting portion 15 in cross section, heat-sink unit 10 lower end is to be fixed on the surface of base plate 92 (shown in figure four).

Wherein can be constituted by aluminium, copper, quartz or ceramic material as the substrate among Fig. 1 34.

Wherein carbon fiber powder 66 materials can have been used as the heat-conducting layer among Fig. 1 60.

As shown in Figure 1, the outer surface 44 of cooling base 40 bottoms is to utilize solder technology, be welded on the trough wall surface 143 of level, therefore cooling base 40 must be done firm contacting and binding (as shown in Figure 4) with level trough wall 143, the outer peripheral face 43 of cooling base 40 is to be welded on the linear groove side wall surface 142, therefore cooling base 40 must with linear groove side wall surface 142 on be connected, further make entire heat dissipation pedestal 40 be linked in the groove 14, be able to hot temperature is transferred on each sheet fin 12 efficiently to obtain cooling base 40, make the infallible and enhancement of radiating effect.

Heat-conducting layer 60 can be solid piece or glue, the basal surface 341 of substrate 34 is by the bonding of heat-conducting layer 60, and be fixed in the basal surface 421 (as shown in Figure 1) of article containing space 42, substrate 34 is to select a kind of quartzy material manufacturing to form, because " quartz " has the characteristic of high heat conduction, can promote the radiating efficiency of whole base plate 34; Heat-conducting layer 60 is to add carbon fiber powder 66 materials are arranged, the hot temperature of substrate 34 can be transmitted to uniformly on the cooling base 40, because heat-conducting layer 60 is to be adhered to uniformly on the basal surface 341,421, make the pore under its microcosmic on the basal surface 341,421, machining tool marks and adjustment flatness all can do uniform binding, to increase radiating efficiency with heat-conducting layer 60; When crystal grain 32 is subjected to electric effect and luminous, and when producing Gao Rewen, its temperature is able to directly give cooling base 40 by heat-conducting layer 60 conduction fast, further being delivered to heat-sink unit 10 by cooling base 40 dispels the heat, therefore crystal grain 32 work and luminous temperature get and are dispelled the heat rapidly, to promote the service life of crystal grain 32.

As Fig. 4, shown in Figure 5; lens 65 can be provided with convex or arcs of recesses; with with crystal grain 32 luminous spectrum give and focus on or defocus; use the gentle right of the angle that can adjust the LED luminescent spectrum, the illumination of adjusting light and light, use for user's selection, outer ring body 111 is that button is pulled on all rims 11; use further that heat-sink unit 10 is fixing; when heat-sink unit 10 contingency are subjected to the external force collision, the protection of outer ring body 111 is arranged, to prevent fin 12 distortion.

Connector 72 is to be connected by doing in the perforation of sleeve 90 and with another connector 342, make electric connection rapid and convenient, and the electrical connection of two

connectors

342,72 is the connections with directionality, can prevent that therefore

connector

342,72 from having the drawback of opposite connection to produce.

The screwed union 56 of lamp holder 50 rear ends can with supply socket (not showing on the figure) bolt of outside, its power supply of obtaining sees through the suitable voltage/current of

connector

342,72 outputs and uses for substrate 34 and crystal grain 32 through the rectification/transformation of power supply unit 70.

As Fig. 4, shown in Figure 5, upper face 74, power supply unit 70, fixed disk 75 and base plate 92 are to be fixed in the tank 53, and sleeve 90 is to penetrate in the perforation 141, in the annular groove 521 that snaps in openend 52 summary belows that clip lug 921 is rotated (as Fig. 1, shown in Figure 4), be fixed in the lamp holder 50 to reach base plate 92 and sleeve 90, wherein the bottom of heat-sink unit 10 is to be horizontal slice as end connecting portion 15, and it is to be welded on the surface of base plate 92, and the Joint binding is one.Therefore when base plate 92 be fixed die from lamp holder 50 after, heat-sink unit 10 also is fixed on the lamp holder 50, has fixed cooling base 40 in the groove 14 of heat-sink unit 10, and heat-sink unit 10 also is fixed and dies from the lamp holder 50 simultaneously, therefore heat-sink unit 10 is subjected to the external force effect, is not easy loosening the decomposition.

As shown in Figure 6, heat-conducting layer 60 can select to use a kind of carbon fiber powder 66 materials, carbon fiber powder 66 produces through nanometer, each molecule is 10-6mm, the basal surface 341 of substrate 34 is that rough pore 343 is arranged under microcosmic, the basal surface 421 of cooling base 40 has rough pore 423 at microcosmic, and carbon fiber powder 66 particles of nanometer all can effectively be packed into described pore 423,343, machining tool marks and adjust in the flatness, to reach the enhancement high-heat conductive efficency.And for example shown in Figure 7, the processing of substrate 34 and cooling base 40 as process machine tool, the for example processing of milling cutter, planing tool, its finished surface has irregular tool marks surface, processing back 35,45 or has the machined surface existence of nonflatness under microcosmic, yet be filled in the gap of the long face 35,45 of two tool marks through heat-conducting layer 60, its carbon fiber powder 66 can fill part and be filled on the irregular tool marks surface 35,45.Further promote the heat-conducting effect of 40 of substrate 34 and cooling bases.

Claims

1. the heat abstractor of a LED illuminating module is characterized in that, comprising:

The plurality of fins that is radial arrangement is welded to one another and is combined into a heat-sink unit, is provided with a groove for welding in heat-sink unit central authorities, and groove central authorities are provided with perforation, and the groove side wall surface of groove is to form the linear groove side wall surface, and the linear groove wall is formed on the bottom of groove;

The LED illuminating module comprises:

Luminescent grain more than at least one or one is to be linked on the substrate; Cooling base, have article containing space, the basal surface of article containing space and substrate base surface, filling in the gap of its both linking to link has heat-conducting layer, the outer surface of cooling base bottom is to be welded in the level of linearity trough wall surface, and the outer peripheral face of cooling base is to be welded on the linear groove side wall surface.

2. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: be positioned at the substrate top and be equiped with lens, described lens have the surface of convex or arcs of recesses, and all rims of lens are to be installed in all rims of groove of groove;

The groove side wall surface of its further groove is inclination to form cone-shaped;

The outer peripheral face of cooling base is the bullet of inclination, and outer peripheral face is to be welded on the groove side wall surface.

3. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: the bottom center of cooling base is provided with perforation;

The central authorities of heat-conducting layer are provided with perforation, and two perforation are corresponding, and the electrical cnnector of substrate passes from perforation;

Power supply unit is installed in the inner tank of lamp holder, the external a connector of its electrical wire, and the connector of described connector and substrate plugs.

4. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: further include:

One sleeve, its bottom links has base plate, sleeve to penetrate the perforation of heat-sink unit, and base plate bilateral limit is respectively equipped with the clip lug;

One fixed disk is to be fixed on the upper face;

The clip lug of base plate is to be connected in the default annular groove of its openend lower edge of lamp holder;

The end connecting portion in cross section, heat-sink unit lower end is to be fixed on the surface of base plate.

5. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: substrate is made of aluminium/copper/quartz/ceramic material.

6. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: heat dissipating layer is that nanometer carbon fiber powder powder material constitutes, described nanometer carbon fiber powder powder material can be filled in the pore of its basal surface of cooling base, and in the pore on substrate base surface.

7. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: heat-conducting layer is semisolid glue/paste.

8. according to the heat abstractor of the described LED illuminating module of claim 1, it is characterized in that: the appearance of heat-sink unit is tapered shape, and its all rim interlocking at maximum outside diameter has outer ring body.