CN203298250U

CN203298250U - LED heat dissipation structure and LED lamp

Info

Publication number: CN203298250U
Application number: CN201320306234XU
Authority: CN
Inventors: 洪犹男
Original assignee: KRANC GREEN TECH Co Ltd
Current assignee: KRANC GREEN TECH Co Ltd
Priority date: 2013-05-30
Filing date: 2013-05-30
Publication date: 2013-11-20
Anticipated expiration: 2023-05-30

Abstract

The utility model provides an LED heat dissipation structure and an LED lamp. The LED heat dissipation structure comprises a heat dissipation piece. A protrusion column axially stretches out of one end of the heat dissipation piece, a hollow part axially stretching to the protrusion column is arranged in the heat dissipation piece, and a plurality of heat dissipation fins integrally stretch out of the peripheral side of the heat dissipation piece; a supporting seat is provided with an axial through hole, the protrusion column of the heat dissipation piece is sleeved with the supporting seat through the axial through hole, one end of the supporting seat abuts against the heat dissipation piece, the end portion of the tail end of the protrusion column is closely attached to a semiconductor light-emitting module to lead generated heat to the heat dissipation piece and dissipate the heat outwards, and a mirror seat is arranged on the semiconductor light-emitting module in a pressing mode and is combined with the supporting seat.

Description

A kind of LED radiator structure and LED light fixture

Technical field

The utility model belongs to LED lamp part technical field, is specifically related to a kind of LED radiator structure and LED light fixture.

Background technology

The structure of a kind of LED light fixture of selling in the market as shown in Figure 5, it includes by two parts 7 and combines and the heat radiation fin structure that forms, wherein the combinatorial surface 71 of parts 7 is provided with first storage tank 72, and the both sides in the first storage tank 72 are provided with respectively one second storage tank 73 again, above-mentioned three component combinations are integral three through holes of rear common formation, for heat radiation conduit 81 and the electric wire 82 of accommodating light emitting semiconductor module 8.By said structure, the LED light fixture sees through heat radiation conduit 81 thermal conductance that light emitting semiconductor module 8 produces is gone out, then heat is shed and reach radiating effect by radiating fin 74.

But in above-mentioned radiator structure, heat radiation conduit 81 must just have good thermal conduction effect with the first storage tank 72 close contacts, if the driving fit precision of the combinatorial surface 71 of parts 7 does not reach standard, it is bad that heat passes effect, in the time of use, easily causes lamp temperatures too high and damage.And on the other hand, the through hole that the second storage tank 73 forms is in order to accommodating electric wire 82, but softer, the easy distortion of electric wire 82, in assembling process, needs to expend the much time electric wire of distortion 82 is placed in through hole the shortcoming that so just causes assembly cost to increase.

If electric wire 82 correctly is not placed in through hole, be clipped in 71 of the combinatorial surfaces of parts 7, also can cause above-mentioned heat radiation conduit 81 heat can't be spread out of to the problem of radiating fin 74.Therefore, be necessary to provide a kind of more effective LED lamp cooling structure.

The utility model content

The purpose of this utility model is to provide a kind of LED radiator structure and LED light fixture, thereby the heat that light fixture produces can fully be conducted by this radiator structure, not because of mould manufacture and the not enough radiating effect that affects product of assembly precision; And radiator structure of the present utility model can be saved built-up time and reduce the assembling difficulty, thereby makes up the deficiencies in the prior art.

At first the utility model provides a kind of LED radiator structure, it is a radiating piece, described radiating piece includes a plurality of radiating fins that are arranged on the supporting surface side, also includes one and is arranged on supporting surface bottom, the projection that directly or indirectly contacts for the light emitting module with producing heat.

Above-mentioned radiator structure, wherein said supporting surface and projection have hollow bulb; Described hollow bulb self-supporting over glaze is to extending to projection; The liquid of heat transmission is housed in hollow bulb.

Above-mentioned radiator structure, also include one be used to supporting the supporting seat of radiating piece, and described supporting seat includes be used to being inserted in the through hole of projection, and wherein the length of through hole is not more than the length of projection;

In order to increase sealing, on the periphery wall ring of projection, have one be used to the first annular groove of the first sealing ring is installed.

The utility model also provides a kind of LED light fixture, include above-mentioned radiating piece and supporting seat, also include the light cup of annulated column shape, one end of described smooth cup is arranged on supporting seat, and the other end is movably arranged on microscope base, between light cup and microscope base, light emitting module is installed, projection contacts with light emitting module; And supporting seat is for other rank greater than supporting seat of the external diameter with contacted the first rank of radiating piece 1, and described other rank include second-order, the 3rd rank.

One end of described smooth cup is by bonding or screwed lock and be arranged on the 3rd rank of supporting seat, and the catching groove by the ramp structure that formed by clasp and bottom and microscope base interlock with.

Above-mentioned catching groove madial wall has the check hook part, and the inclined-plane of the ramp structure tabling of check hook part and end face formation and clasp and bottom formation.

The utility model also provides the mounting means of above-mentioned LED light fixture, be by described one or more LED lamp installation on intermediate plate; Concrete is exactly supporting seat to be passed to the installing hole of intermediate plate, the first terrace of supporting seat is butted on this intermediate plate, and this intermediate plate is pressed on the first terrace with hold-doun nut in this intermediate plate opposite side.

For better waterproof, on the first terrace of supporting seat, be concaved with second annular groove, and in wherein being provided with one second sealing ring.

Radiator structure of the present utility model is that the radiating piece of its photo engine device and radiating fin are formed as one, and can reach the effect that thermal conduction effect is good, and through simple member and combination, reach purpose simple and easy and that assemble rapidly, reduction man-hour and assembling difficulty, reduce costs simultaneously.

The accompanying drawing explanation

Fig. 1: radiating piece of the present utility model and include the stereo decomposing structure chart of the LED lamp of this radiating piece;

Fig. 2: the generalized section of LED lamp of the present utility model;

Fig. 3: LED lamp of the present utility model is fixed in the structural representation of an intermediate plate;

Fig. 4: a plurality of LED lamps of the present utility model are fixed in the structural representation of an intermediate plate;

Fig. 5: the schematic diagram of existing LED lamp radiator structure;

Wherein: 1, radiating piece 11, supporting surface 12, projection 13, hollow bulb 14, radiating fin 121 first annular grooves 122, the first sealing ring 123, end face 2, supporting seat 21, through hole 22, the first rank 221, the first terrace 222 second annular grooves 223, the second sealing ring 23, second-order 24, the 3rd rank 231, the second terrace 3, light emitting module 4, microscope base 41, catching groove 42, check hook part 421, end face 5, light cup 51, clasp 52, bottom 6, intermediate plate 61, hold-doun nut 62, installing hole.

The specific embodiment

Below in conjunction with accompanying drawing, radiator structure of the present utility model and the structure and the assembling mode that comprise the LED lamp of this radiator structure are described in detail.

As depicted in figs. 1 and 2, the LED radiator structure that the utility model provides is radiating piece 1, and this radiating piece 1 can be cast into a shape, and the one end has a supporting surface 11, and this supporting surface 11 axially stretches out a projection 12 certainly.And this radiating piece 1 inside is provided with a hollow bulb 13 that extends axially to this projection 12, in two sides of supporting surface 11, stretches out several radiating fins 14.For projection 12, it can pass through screw socket, spiral way screws and is arranged on supporting surface 11, and, in order to prevent leak of liquid, perisporium is equipped with one first annular groove 121 outside projection 12, and one first sealing ring 122 wherein is housed, when screwing, the first sealing ring 122 just can play the effect of waterproof.

In hollow bulb 13, the liquid of heat transmission can be housed, after absorbing heat energy, in this hollow bulb 13, evaporate formation gas, because density reduces floating rising, and the effect by this radiating piece 1 and radiating fin 14 sheds heat between the rising stage, make it again return into liquid and drop to again bottom, form accordingly the circulation of heat radiation process, thereby obviously improve the efficiency of heat radiation.

Wherein radiating piece 1 can be made by holding transcalent metal material, and the liquid of heat transmission can be water.

Also alternative is equipped with a supporting seat 2 outside projection 12, and it has an axially extending bore 21, and it is outer also fixing with it that its Assurance of Size can be sheathed on the projection 12 of radiating piece 1.These supporting seat 2 one ends support supporting surface 11 belows in radiating piece 1, and wherein the length of this projection 12 is not less than the length of the through hole 21 of this supporting seat 2, so just can make the end face 123 of projection 12 ends with these supporting seat 2 through holes 21, keep flushing at least.And when using, the end face 123 of projection 12 can closely be connivent in semiconductor light emitting module 3, and the heat that light emitting semiconductor module 3 is produced passes to radiating fin 14 by projection 12; And, can be easily by end face 123 close contacts of light emitting semiconductor module 3 with projection 12 by supporting seat 2.

Radiating piece of the present utility model, by above-mentioned structure, is easy to just can guarantee that radiator structure (projection 12) contacts with light emitting module in assembling, thereby has reduced the difficulty of assembling.

In order to obtain better radiating effect, at light emitting semiconductor module 3 and 123 of this projection 12 end faces, be provided with a heat eliminating medium layer, the heat eliminating medium layer can be that heat passes the high heat sink material of coefficient, in order to increase the hot transfer efficiency of this light emitting semiconductor module 3.

For the mounting means of light emitting semiconductor module 3 with projection 12, it can make light emitting semiconductor module 3 and supporting seat 2 combinations by microscope base 4, has so just formed the LED light fixture that includes the utility model radiator structure.Be exactly specifically, supporting seat 2 axially is formed with gradually little stepped of three layers of external diameter down in it, is defined as respectively the first rank 22, second-order 23 and the 3rd rank 24, and wherein each joint, rank is formed with one first terrace 221 and one second terrace 231.and the combination of this microscope base 4 and this supporting seat 2 be outside the 3rd rank 24 of this supporting seat 2, be provided with a smooth cup 5. wherein this light cup 5 be central column, and to bind or to be incorporated into outside the 3rd rank 24 of this supporting seat 2 in the mode of screw closure, and be butted on this second terrace 231, and outside this light cup 5, perisporium goes out a buckle portion 51 towards its radial expansion, and the bottom surface 52 of this buckle portion 51 forms inclined-plane. on the other hand, this microscope base 4 has one in order to the catching groove 41 with these buckle portion 51 mutual fastenings, wherein the internal perisporium of this catching groove 41 is equipped with a check hook part 42, the end face 421 of this check hook part 42 also forms inclined-plane, for this light cup 5, with its buckle portion 51, stretch into the catching groove 41 of this microscope base 4, and be snapped in this check hook part 42, so that this microscope base 4 is incorporated on this supporting seat 2.

As shown in Figure 3, LED light fixture of the present utility model can be incorporated on an intermediate plate 6, furthermore, as shown in Figure 4, on this intermediate plate 6, has several installing holes 62, for several LED lamp installation in wherein.Concrete is exactly supporting seat 2 to be passed to the installing hole 62 of this intermediate plate 6, the first terrace 221 with supporting seat 2 is butted on this intermediate plate 6, and with a hold-doun nut 61, be locked on the second-order 23 of this supporting seat 2 in these intermediate plate 6 opposite sides, and this intermediate plate 6 is packed on this first terrace 221, the LED light fixture can be fixed on intermediate plate 6 by this, and can be utilized as large-area laying.In addition, for reaching the waterproof purpose, on the first terrace 221 of this supporting seat 2, be concaved with one second annular groove 22, and in wherein being provided with one second sealing ring 223, and suppress to seal gap with this intermediate plate 6.

Claims

1. the radiator structure of a LED, it is a radiating piece (1), it is characterized in that, described radiating piece (1) includes a plurality of radiating fins (14) that are arranged on supporting surface (11) side, also include one and be arranged on supporting surface (11) bottom, the projection (12) that directly or indirectly contacts for the light emitting module with producing heat.

2. radiator structure as claimed in claim 1, is characterized in that, described supporting surface (11) and projection (12) have hollow bulb (13); Described hollow bulb (13) self-supporting face (11) extends axially to projection (12); And the liquid of heat transmission is housed in hollow bulb (13).

3. radiator structure as claimed in claim 1, characterized by further comprising a supporting seat (2) be used to supporting radiating piece 1, described supporting seat (2) includes be used to the through hole (21) that is inserted in projection (12), and wherein the length of through hole (21) is not more than the length of projection (12).

4. radiator structure as described as the claims 1 to 3 any one, is characterized in that having one be used to first annular groove (121) of the first sealing ring (122) is installed on the periphery wall ring of described projection (12).

5. LED light fixture, include radiating piece claimed in claim 3 (1) and supporting seat (2), also include the light cup (5) of annulated column shape, one end of described smooth cup (5) is arranged on supporting seat (2), and the other end is movably arranged on microscope base (4), between light cup (5) and microscope base (4), light emitting module (3) is installed, and projection (12) contacts directly or indirectly with light emitting module (3); And supporting seat (2) is for other rank greater than supporting seat (2) of the external diameter with contacted the first rank of radiating piece 1 (22), and described other rank include second-order (23), the 3rd rank (24).

6. LED light fixture as claimed in claim 5, an end that it is characterized in that described smooth cup (5) is by bonding or screwed lock and to be arranged on the 3rd rank (24) of supporting seat (2) upper, and the catching groove (41) by the ramp structure that formed by clasp (51) and bottom (52) and microscope base (4) interlock with.

7. LED light fixture as claimed in claim 6, it is characterized in that described catching groove (41) madial wall has check hook part (42), and check hook part (42) and the inclined-plane of end face (421) formation with the ramp structure tabling of clasp (51) and bottom (52) formation.