CN102748623A

CN102748623A - Thermal conduction LED (light emitting diode) down light of integral radiator

Info

Publication number: CN102748623A
Application number: CN2012102174102A
Authority: CN
Inventors: 陈伟星
Original assignee: JIANGSU S-SHINE LIGHTING TECHNOLOGY Co Ltd
Current assignee: JIANGSU S-SHINE LIGHTING TECHNOLOGY Co Ltd
Priority date: 2012-06-28
Filing date: 2012-06-28
Publication date: 2012-10-24

Abstract

The invention discloses a thermal conduction LED (light emitting diode) down light of an integral radiator, belonging to the field of illumination equipment. The thermal conduction LED down light of an integral radiator comprises a radiator, an LED light source, a diffusion plate, a diffusion plate positioning disc and an LED drive device, wherein a first step cavity and a second step cavity are formed on one side of the radiator; the LED light source is located in the first step cavity and attached and fixed with the inner side of the top wall of the first step cavity; a diffusion plate positioning cavity is formed on one side of the diffusion plate positioning disc; the diffusion plate positioning disc is fixed with the radiator correspondingly in the second step cavity; the diffusion plate corresponds to the down side of the LED light source; the edge part in the circumferential direction of the diffusion plate is matched with the diffusion plate positioning cavity; and the LED drive device is fixed at the top of the side of the LED light source opposite to the LED light source, and is electrically connected with the LED light source. Through the invention, the influence on the radiating efficiency generated by the thermal resistance of multiple mediums is avoided in the heat conduction process, the radiating effect is obviously improved, the radiating performance of the LED light source is improved, and the service life of the LED light source is prolonged.

Description

Integrated radiator heat loss through conduction LED Down lamp

Technical field

The invention belongs to the illuminating equipment technical field, be specifically related to a kind of integrated radiator heat loss through conduction LED Down lamp

Background technology

The LED Down lamp that applicant mentions in the above refers to the LED recessed down light, and is main but be not limited to be applied to market or supermarket.Since the LED lamp compare with ordinary lamps have be not limited to following give an example such as energy-conservation, light efficiency is high, long service life, maintenance workload are little, respond (also the claiming response) time short (ns level), no poisonous metal and environmental protection and discarded object are prone to recovery, photochromic pure soft and spectral region is narrow and can process strong point such as various geometries and be regarded as the hommization illuminating equipment by people.

are no lack of the technical information about the LED light fixture in disclosed Chinese patent document; Slightly with give an example like CN201748219U (a kind of many LED light fixtures of use), CN201757302U (assembly type LED lamp), CN201772302U (LED light fixture), CN101984280A (LED light fixture), CN201462616U (a kind of LED pendent lamp), CN201731397U (inhale to push up and hang fitting structure), CN201568846U (the energy-conservation factory building pendent lamp of LED), CN201187717Y (LED electrolier lamp) and CN201819125U (active heat removal LED pendent lamp), or the like.

such as industry knowledge, the LED lamp time can produce heat in work, if can not heat spread to the external world; So not only can influence service life; And the problem of light decay and so on can appear, therefore, the heat radiation of LED lamp receives people's attention all the time.

are no lack of the technical information about the LED heat radiation equally in the Chinese patent document; " the LED lamp " typically recommended like publication number CN1755192A; This patent application scheme is through the transparent or semitransparent astigmatism plate of setting up and that this astigmatism plate is combined with led light source is as a whole; Use the shell of major diameter (patent is claimed large tracts of land) metal cup simultaneously, thereby improve radiating effect (specifically can referring to 3 page of the 2nd row of Instructions Page 2 last column to the of this patent application) as lamp.The shortcoming that this patent application scheme exists is: one of which, radiating effect can not show the degree alleged like its specification, because the heating part of LED lamp has two, and the one, pcb board (seal carving circuit board), the 2nd, led light source.Can know from the structure of this patent application; Because pcb board combines with insulating barrier; More properly say with the crown top of burner to combine, so the radiating effect of pcb board is difficult to embody, and the heat dispersion of LED also is difficult to embody; Because the heat that LED produces is enclosed in the cavity volume of metalized lamp cup by light cover, be difficult to spread to the external world with thermaltransmission mode apace by metalized lamp cup; Its two, have the deficiency attend to one thing and lose sight of another, this diameter that is through increasing metalized lamp cup of so-called Gu can improve radiating effect to a certain extent, and so-called mistake that be and increase bulkyization that metalized lamp cup can make the LED lamp simultaneously; Its three, the integral heat sink area is little and radiating mode is stiff (dullness), for example the outer wall of insulating barrier does not smoothly have convex-concave, and is unfavorable to dispelling the heat; Its four, the heat that led light source produces can exert an influence to pcb board, because lack the effective isolation measure between the two.

again; " LED lamp " that publication number CN101082411A provides improves radiating effect through semiconductor refrigerating agent and radiator fan; But so structure can significantly increase complexity and the manufacturing cost of LED; And semiconductor chilling plate and radiator fan only have the effect of forced heat radiation to pcb board (patent is claimed controller), and the diffusion of the heat that produces for LED (patent is claimed lamp body) is lost biased.

reach, and " the active heat removal LED pendent lamp " that Granted publication CN201819125U introduces has achievement for the heat radiation of led light source (patent is claimed the LED module), but loses biased equally for the heat radiation of pcb board (patent is claimed control circuit).

are gone back; As the LED Down lamp that is widely used in supermarket or market is aforesaid LED recessed down light; Its radiating effect is undoubtedly more harsh for bulkhead lamp capable; Because want cube little on the one hand, require in light weight, longer to the requirement in service life of light source on the one hand more on the other hand.Yet in above-mentioned disclosed patent documentation, all do not provide the enlightenment of comprehensive these technical problems of solution, the applicant has done useful design for this reason, and the technical scheme that will introduce below produces under this background

Summary of the invention

the present invention is to provide a composition to help the heat sink for the integrated structure in order to significantly reduce the weight and can prevent the heat in the thermal conduction efficiency of the heat effect, a radiator will help with the LED light source LED driver device and separated from each other and in order to make the two have separate space for heat dissipation and significantly improve the cooling effect and benefit to the radiator with space to accommodate the LED light source in order to further enhance the cooling effect of the LED light source to extend the life of one of the radiator heat conduction LED downlight.

task of the present invention is accomplished like this; A kind of integrated radiator heat loss through conduction LED Down lamp; Comprise radiator, led light source, diffuser plate, diffuser plate positioning disk and LED drive unit; Said radiator constitutes a first step chamber and a second step chamber towards a side of said led light source; Led light source is positioned at said first step chamber and pastes with the inboard of the roof in first step chamber and touches fixingly, and the diffuser plate positioning disk constitutes a diffuser plate positioning chamber towards the circumferencial direction of a side of diffuser plate, and this diffuser plate positioning disk is fixed with radiator in corresponding to described second step chamber; Diffuser plate is corresponding to the below of described led light source, and matches with described diffuser plate positioning chamber in the edge of the circumferencial direction of this diffuser plate; The LED drive unit is fixed on the top of said radiator back to a side of said led light source, and is electrically connected with said led light source.

are in a concrete embodiment of the present invention; Described LED drive unit comprises power pack, led light source drive circuit board and bottom; On power pack and the edge that is positioned at power pack constitute the power-line terminal chamber of stepping down; And on the wall body of this power pack, also offer being used for of communicating with the box chamber of power pack with the radiating groove of the heat in the box chamber to external world's diffusion; The led light source drive circuit board is contained in the described box chamber; And the power-line terminal of this led drive circuit plate is insinuated into described power-line terminal and steps down in the chamber; Bottom and power pack are fixed and the led drive circuit plate are covered and protect, and offer the first power line resigning hole of a pass to a said led light source of drawing on being used for the led light source drive circuit board in the central authorities of this bottom, wherein: on described radiator and in the position corresponding to the first power line resigning hole, offer a second source line resigning hole.

in another concrete embodiment of the present invention, described LED drive unit also includes a connector cover, and this connector cover and described power line binding post are stepped down to match in the chamber and fixed with described bottom.

are in another concrete embodiment of the present invention; On described bottom and in fixed-site, at least one post that soars is arranged corresponding to described connector cover; And on connector cover and in position, offer the connector cover fixing hole that equates with the quantity of the post that soars corresponding to the post that soars; Respectively connect on the lid fixing hole and be equipped with the connector cover hold-down screw, the connector cover hold-down screw is fixed with the post that soars.

are in another concrete embodiment of the present invention; Described power-line terminal step down the chamber the accent position the base along on constitute one group of first lead and introduce the chamber; Introduce the chamber and on described connector cover and in the position of introducing the chamber corresponding to first lead, constitute one group of second lead equally, first, second lead is introduced the chamber and is fitted to each other.

also have among the concrete embodiment of the present invention, and described radiating groove is extended to sidewall and constitutes the L shaped shape of English alphabet from the roof of said power pack.

more of the present invention and among concrete embodiment, on described radiator and being fixed with one group corresponding to the chamber wall in said second step chamber with the interval state, is used for and the fixing fixture of ceiling of field of employment.

are in of the present invention and then concrete embodiment; Described one group of fixture comprises that respectively a spring base and compels to hold spring; Spring base is being fixed corresponding to the position and the radiator in described second step chamber, compels to hold the spring pivot and is arranged on the spring base.

of the present invention again more and among concrete embodiment, described radiator is mold formed by aluminium sheet.

in again of the present invention and then concrete embodiment, described diffuser plate is the Merlon diffuser plate of the translucent high printing opacity of frosted.

technical scheme provided by the invention is with respect to one of technique effect of prior art institute tool; Because radiator is the integral type structure that constitutes first, second step chamber; And the LED drive unit is arranged on the top of radiator; And led light source is arranged in the first step chamber, therefore can avoid the thermal resistance of heat multiple medium in conductive process that radiating efficiency is exerted an influence; Its two since by radiator with the separation of led light source and LED drive unit, make both have independently heat-dissipating space separately, thereby can significantly improve radiating effect; Its three because led light source is contained in the first step chamber, therefore can improve the heat dispersion of led light source ultimate attainmently, prolong the service life of led light source.

Description of drawings

Fig. 1 is the embodiments of the invention structure chart.

Fig. 2 is the cutaway view of Fig. 1.

The specific embodiment

can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to the present invention program, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.

see also Fig. 1 and Fig. 2; Provided fill the post of by aluminium sheet and pass through the radiator 1 that mould molding obtains just as the basin-like body structure; This radiator 1 towards a side of led light source 2 also promptly under the user mode towards under a side constitute a first step chamber 11 and a second step chamber 12; And the middle position at this radiator 1 offers a second source line resigning hole 13; And on radiator 1 and preferably be provided with three fixtures 14 that are not limited to illustrate quantity around the circumferencial direction of radiator 1 with the spacing distance of equalization corresponding to the position in aforesaid second step chamber 12; Each fixture 14 comprises spring base 141 and compels to hold spring 142; Spring base 141 usefulness spring base hold-down screws 1411 are fixing with the screw holder 42 that is preset on the diffuser plate positioning disk 4 after passing first screw hole 15 that is opened on the radiator 1; Compel to hold spring 142 and can pull the site of an exhibition rotationally and be arranged on the spring base 141, by this compel to hold spring 141 and the present invention is positioned at supermarket and market and so on the place ceiling or similarly on the carrier.

led light source 2 usefulness light source hold-down screws 21 are fixing by means of the screw hole 1111 on the roof 111 that is preset in light source fixing screw hole 22 and the first step chamber 11 that is opened in aforementioned radiator 2 on the led light source 2, and paste with roof 111 and to touch.Again, the central authorities at led light source 2 offer a guide hole 23.

It is the below of the diffuser plate 3 of Merlon corresponding to led light source 2 that material is preferably PC; This diffuser plate 3 is the translucent high printing opacities of frosted; And match with diffuser plate positioning chamber 41 on being formed in diffuser plate positioning disk 4 in the edge of the circumferencial direction of this diffuser plate 3, promptly the edge of the circumferencial direction of diffuser plate 3 is shelved on the diffuser plate positioning chamber 41.

Fig. 1 and Fig. 2 please be continued to see in ; The LED drive unit 5 that provides comprises power pack 51, led light source drive circuit board 52 and bottom 53; The circumferencial direction of power pack 51 offers plural groups (shown in Figure 1 is three groups) radiating groove 513 with the interval state; Every group of radiating groove 513 has some, 5-10 bar for example, and every radiating groove 513 extends to sidepiece (sidewall) from the top of power pack 51 (roof); Thereby the shape that makes radiating groove 513 forms the L shaped of English alphabet or claims 7 fonts of Arabic numerals; Again, offer the power-line terminal that communicates with the box chamber 512 of power pack 51 chamber 511 of stepping down in the edge of the circumferencial direction of power pack 51, and constitute one group of first lead and introduce chamber 5111 in the step down lower edge at accent position in chamber 511 of this power-line terminal.Led light source drive circuit board 52 is contained in the aforesaid box chamber 512, and the power-line terminal 521 on this led light source drive circuit board 52 is insinuated into aforesaid power-line terminal and steps down in the chamber 511.Bottom 53 matches with power pack 51, covers by 53 pairs of aforesaid led light source drive circuit boards 52 of this bottom and protects.Central authorities at this bottom 53 offer one first power line resigning hole 531, and aforesaid second source line resigning hole 13 is corresponding with it.In addition, on bottom 53, also be fixed with a pair of post 532 that soars.

are as preferred scheme; Position corresponding to aforesaid power-line terminal erect-position chamber 511 is equipped with a connector cover 54; By it power-line terminal chamber 511 of stepping down is covered and protected; On this connector cover 54, offer a pair of connector cover fixing hole 541, on each connector cover fixing hole 541, be equipped with connector cover hold-down screw 5411, this connector cover hold-down screw 5411 is fixing with the aforesaid post 532 that soars.Constitute one group of second lead introducing chamber 542 in the lower edge of connector cover 54 and in the position of introducing chamber 5111 corresponding to aforesaid first lead; First, second lead is introduced chamber 5111,542 and is fitted to each other; Adjacent first, second lead is introduced chamber 5111, the zone between 542 constitutes the full circle shape cavity that supplies outside power line to introduce; In view of the above, can claim that also it respectively is the semi arch lead-in wire cavity that is used to supply lead (power line) introducing that first, second lead is introduced chamber 5111,542.

by shown in the figure, aforesaid power pack 511 is fixing with the fixing hole 1112 that is opened on the roof that promptly is opened in first step chamber 11 111 on the aforesaid radiator 1 through screw hole 515 through screw 514.Thereby LED drive unit 5 is fixed on the radiator 1.External power cord is introduced chamber 5111,542 from first, second lead and is introduced and be connected with the power-line terminal 521 of led light source drive circuit board 52, and the circuit of drawing from led light source drive circuit board 52 successively by way of first, second power line resigning hole 531,13 after guide hole 23 be connected with led light source 2.

In sum, technical scheme provided by the invention has remedied the shortcoming in the prior art, has accomplished the invention task, the objective technique effect that has embodied in the superincumbent technique effect of the applicant hurdle

Claims

1. a kind of integrated radiator heat loss through conduction LED Down lamp; It is characterized in that comprising radiator (1), led light source (2), diffuser plate (3), diffuser plate positioning disk (4) and LED drive unit (5); Said radiator constitutes a first step chamber (11) and a second step chamber (12) towards a side of said led light source (2); Led light source (2) be positioned at said first step chamber (11) and with the inboard of the roof (111) of first step chamber (11) paste touch fixing; Diffuser plate positioning disk (4) constitutes a diffuser plate positioning chamber (41) towards the circumferencial direction of a side of diffuser plate (3); And this diffuser plate positioning disk (4) is fixing with radiator (1) in corresponding to described second step chamber (12); Diffuser plate (3) is corresponding to the below of described led light source (2), and matches with described diffuser plate positioning chamber (41) in the edge of the circumferencial direction of this diffuser plate (3); LED drive unit (5) is fixed on the top of said radiator (1) back to a side of said led light source (2), and is electrically connected with said led light source (2).

2. integrated radiator heat loss through conduction LED Down lamp according to claim 1; It is characterized in that described LED drive unit (5) comprises power pack (51), led light source drive circuit board (52) and bottom (53); Go up and the edge that is positioned at power pack (51) constitutes the power-line terminal chamber (511) of stepping down at power pack (51); And on the wall body of this power pack (51), also offer being used for of communicating with the box chamber (512) of power pack (51) with the radiating groove (513) of the heat in box chamber (512) to external world's diffusion; Led light source drive circuit board (52) is contained in the described box chamber (512); And the power-line terminal (521) of this led drive circuit plate (52) is insinuated into described power-line terminal and steps down in the chamber (511); Bottom (53) and power pack (51) are fixing and led drive circuit plate (52) covered protect; Offer the first power line resigning hole (531) of a pass to a said led light source (2) of drawing on being used for led light source drive circuit board (52) in the central authorities of this bottom (53), wherein: go up and offer a second source line resigning hole (13) in position corresponding to the first power line resigning hole (531) at described radiator (1).

3. integrated radiator heat loss through conduction LED Down lamp according to claim 2; It is characterized in that described LED drive unit (5) also includes a connector cover (54), this connector cover (54) and described power line binding post are stepped down to match in chamber (511) and are fixing with described bottom (53).

4. integrated radiator heat loss through conduction LED Down lamp according to claim 3; It is characterized in that upward and in fixed-site at least one post that soars (532) being arranged corresponding to described connector cover (54) at described bottom (53); And go up and offer the connector cover fixing hole (541) that equates with the quantity of the post that soars (532) in position corresponding to the post that soars (532) at connector cover (54); Respectively connect on the lid fixing hole (541) and be equipped with connector cover hold-down screw (5411), connector cover hold-down screw (5411) is fixing with the post (532) that soars.

5. integrated radiator heat loss through conduction LED Down lamp according to claim 3; It is characterized in that described power-line terminal step down chamber (511) the accent position the base along on constitute one group of first lead and introduce chamber (5111); And upward and in the position of introducing chamber (5111) corresponding to first lead constituting one group of second lead introducing chamber (542) equally at described connector cover (54), first, second lead is introduced chamber (5111,542) and is fitted to each other.

6. integrated radiator heat loss through conduction LED Down lamp according to claim 2 is characterized in that described radiating groove (513) is extended to sidewall from the roof of said power pack (511) and constitutes the L shaped shape of English alphabet.

7. integrated radiator heat loss through conduction LED Down lamp according to claim 1 is characterized in that going up and being used for and the fixing fixture (14) of ceiling of field of employment being fixed with one group corresponding to the chamber wall in said second step chamber (12) with the interval state at described radiator (1).

8. integrated radiator heat loss through conduction LED Down lamp according to claim 7; It is characterized in that described one group of fixture (14) comprises that respectively a spring base (141) and compels to hold spring (142); Spring base (141) is fixing at position and radiator (1) corresponding to described second step chamber (12), compels to hold spring (142) pivot and is arranged on the spring base (142).

9. is characterized in that according to claim 1 or 2 or 7 or 8 described integrated radiator heat loss through conduction LED Down lamps described radiator (1) is mold formed by aluminium sheet.

10. Integrated radiator heat loss through conduction LED Down lamp according to claim 1 is characterized in that described diffuser plate (3) is the Merlon diffuser plate of the translucent high printing opacity of frosted