CN203442769U - Waterproof structure of large power LED light fixture - Google Patents

Abstract

The utility model discloses a waterproof structure of large power LED light fixture comprising a lamp shell, a reflector and light-permeable glass. The bottom of the lamp shell is sealed and fastened on a heat radiating section bar; a half-sealed cavity with an open mouth on one end is formed by the lamp shell and the heat radiating section bar; illuminating elements are mounted in the cavity and fastened on the heat radiating section bar; the reflector is placed on the illuminating element; the light-permeable glass is arranged on the open port of the cavity; and the cavity is sealed by the light-permeable glass and the lamp shell. The bottom of the lamp shall is directly sealed and fastened on the heat radiating section bar; and the illuminating elements have direct contact with the heat radiating section bar, so intermediate heat conduction is avoided and heat energy can be swiftly radiated via the heat radiating section bar. The large power LED waterproof light fixture structure has good sealing effect. The heat radiating section bar is made from crushing section bar instead of conventional pressure casting body, so product weight is greatly compressed without reducing radiating effect of the light fixture.

Description

The high-power watertight light fitting structure of a kind of LED

Technical field:

The utility model relates to LED technical field of lamps, refers in particular to the high-power watertight light fitting structure of a kind of LED.

Background technology:

At present, illuminating product generally on the market is LED lamp, and LED lamp progressively replaces traditional incandescent lamp, light pipe.LED light fixture has many advantages, so the producer is devoted to develop LED light fixture.For outdoor lamp, because it needs the area of irradiation large, light source is wide especially, if use traditional light fixture energy consumption very high, so adopt LED to make large-power lamp, has been current development trend.

Along with the fast development of LED high-power illumination technology, the heat dissipation problem of LED becomes more and more important.There are several significant shortcomings in current LED large-power lamp:

(1) the high-power radiator structure weight that causes is increasing;

(2) the high-power light fixture cost that causes climbs up and up.

Therefore, how overcoming above-mentioned shortcoming, is current problem urgently to be resolved hurrily.

In addition, it is exactly waterproof problem that outdoor LED lamp needs most what overcome, and it directly has influence on the service life of light fixture.Because LED light source will produce heat in the course of the work, these heats, by its light fixture of air itself being radiated in light fixture, cause light fixture to expand with heat and contract with cold, there is fit clearance, cannot be airtight thereby cause, there is the intrusion of steam, finally cause LED light fixture to use, the life-span reduces greatly.

Utility model content:

The purpose of this utility model is to overcome prior art weak point, and the high-power watertight light fitting structure of a kind of LED is provided.

The technical scheme that the utility model is realized its object employing is: the high-power watertight light fitting structure of this LED comprises: lamp body shell, reflection shield and transparent glass, described lamp body outer casing bottom sealing is fixed on a heat sink section bar, lamp body shell and heat sink section bar form the semi-enclosed cavity of an end opening, light-emitting component is arranged in this cavity, and be fixed on heat sink section bar, reflection shield covers on light-emitting component, openend in cavity arranges transparent glass, and by the sealing of transparent glass and lamp body shell, cavity is sealed.

Furthermore, in technique scheme, described heat sink section bar is by extrusion modling, and it has the plane of being combined with lamp body shell and the blade that forms heat radiation main body.

Furthermore, in technique scheme, described power source drive device is fixed on the outside of lamp body shell.

Furthermore, in technique scheme, the bottom of lamp body shell offers the through hole of installing for light-emitting component.

Furthermore, in technique scheme, the open end edge of described lamp body shell is formed with for placing the edge clipping of transparent glass, and described transparent glass is arranged in this edge clipping position, and between the two, is provided with heat-proof silica gel waterproof material.

Furthermore, in technique scheme, on described lamp body shell, be articulated with support, on the relative two sides of lamp body shell, be provided with connecting plate, described support two ends are articulated on this connecting plate, and are provided with salient point detent mechanism on connecting plate and support.

Furthermore, in technique scheme, described salient point detent mechanism is: in the end of support, be provided with a salient point, be the circular-arc hole clipping corresponding with salient point that be intervally distributed with on connecting plate, by coordinating of salient point and hole clipping, make support be positioned at relevant position.

After the utility model employing said structure, there is following beneficial effect:

1, lamp body outer casing bottom of the present utility model directly seals and is fixed on heat sink section bar, and light-emitting component directly contacts with heat sink section bar, has so just reduced intermediate heat conduction, makes heat by heat sink section bar, disperse rapidly.Meanwhile, this sealing structure better effects if.

2, the heat sink section bar in the utility model adopts extrusion section bar to replace conventional die-casting body, and product weight has been carried out to great compression, does not reduce the radiating effect of light fixture simultaneously.

3, the heat sink section bar in the utility model adopts extrusion section bar to replace conventional die-casting body, greatly reduces light fixture cost.

4, sealing effectiveness number of the present utility model, can be applicable to various moist rain and dew environment, power source drive device is arranged on to the outside of lamp body shell simultaneously, is convenient to like this change, keep in repair.

In sum, the utility model overcomes the existing shortcoming of current product, is the good scheme rationally addressing this problem.

Accompanying drawing explanation:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is three-dimensional exploded view of the present utility model.

The specific embodiment:

Below in conjunction with specific embodiments and the drawings, the utility model is further illustrated.

See that shown in Fig. 1,2, the utility model comprises: heat sink section bar 1 lamp body shell 2, reflection shield 3, transparent glass 4, support 5, power source drive device 6 and LED light-emitting component 7.Wherein, lamp body shell 2 sealed bottoms are fixed on heat sink section bar 1, and lamp body shell 2 and heat sink section bar 1 form the semi-enclosed cavity of an end opening.The bottom of lamp body shell 2 offers the through hole of installing for light-emitting component 7, light-emitting component 7 is arranged in this cavity, and be fixed on heat sink section bar 1, reflection shield 3 covers on light-emitting component 7, openend in cavity arranges transparent glass 4, and by transparent glass 4 and the sealing of lamp body shell 2, cavity is sealed.

Described heat sink section bar 1 is by extrusion modling, and it has and the plane of lamp body shell 2 combinations and the blade that forms heat radiation main body.Described power source drive device 6 is fixed on the outside of lamp body shell 2.

The open end edge of described lamp body shell 2 is formed with for placing the edge clipping of transparent glass 4, and described transparent glass 4 is arranged in this edge clipping position, and between the two, is provided with heat-proof silica gel waterproof material.

Pivot joint support 5 on described lamp body shell 2 is provided with connecting plate 21 on the relative two sides of lamp body shell 2, and described support 5 two ends are articulated on this connecting plate 21, and are provided with salient point detent mechanism on connecting plate 21 and support 5.This salient point detent mechanism is: in the end of support 5, be provided with a salient point, be the circular-arc hole clipping corresponding with salient point that be intervally distributed with on connecting plate 21, by coordinating of salient point and hole clipping, make support 5 be positioned at relevant position.

As mentioned above, in the utility model, heat sink section bar 1 and 2 combinations of lamp body shell, between waterproof material is set, form the cavity of a semi-hermetic, LED light-emitting component 7 is installed on heat sink section bar 1, and the heat of this light-emitting component 7 is dispersed in external environment condition by heat sink section bar 1, maintains the safe and stable operation of light-emitting component 7.Lamp body shell 2 is by metal stretching or be welded, lightweight; Reflection shield 3 is arranged among lamp body shell 2, and the light that light emitting source element 7 is sent carries out secondary light-distribution, to reach best illuminating effect.Described transparent glass 4 covers the openend edge clipping place at lamp body shell 2 by fixture, forms an airtight cavity, and heat-resisting silica gel ring waterproof material is set between transparent glass 4 and lamp body shell 2, reaches waterproof object.Described support 5 is being arranged on lamp body shell 2, can install and use by 5 pairs of whole light fixtures of support.

Certainly, the foregoing is only an embodiment of the present utility model, be not to limit the utility model practical range, all according to equivalence variation or modification that described in the utility model claim, structure, feature and principle are done, all should be included in the utility model claim.

Claims (7)

1. the high-power watertight light fitting structure of LED, comprise: lamp body shell (2), reflection shield (3) and transparent glass (4), it is characterized in that: lamp body shell (2) sealed bottom is fixed on a heat sink section bar (1), lamp body shell (2) and heat sink section bar (1) form the semi-enclosed cavity of an end opening, light-emitting component (7) is arranged in this cavity, and be fixed on heat sink section bar (1), reflection shield (3) covers on light-emitting component (7), openend in cavity arranges transparent glass (4), and by transparent glass (4) and the sealing of lamp body shell (2), cavity is sealed.

2. the high-power watertight light fitting structure of a kind of LED according to claim 1, is characterized in that: described heat sink section bar (1) is by extrusion modling, and it has and the plane of lamp body shell (2) combination and the blade that forms heat radiation main body.

3. the high-power watertight light fitting structure of a kind of LED according to claim 2, is characterized in that: the external stability of described lamp body shell (2) has power source drive device (6).

4. according to the high-power watertight light fitting structure of a kind of LED described in any one in claim 1-3, it is characterized in that: the bottom of lamp body shell (2) offers the through hole of installing for light-emitting component (7).

5. according to the high-power watertight light fitting structure of a kind of LED described in any one in claim 1-3, it is characterized in that: the open end edge of described lamp body shell (2) is formed with for placing the edge clipping of transparent glass (4), described transparent glass (4) is arranged in this edge clipping position, and between the two, is provided with heat-proof silica gel waterproof material.

6. according to the high-power watertight light fitting structure of a kind of LED described in any one in claim 1-3, it is characterized in that: on described lamp body shell (2), be articulated with support (5), in lamp body shell (2), relatively on two sides, be provided with connecting plate (21), it is upper that described support (5) two ends are articulated in this connecting plate (21), and be provided with salient point detent mechanism on connecting plate (21) and support (5).

7. the high-power watertight light fitting structure of a kind of LED according to claim 6, it is characterized in that: described salient point detent mechanism is: the end in support (5) is provided with a salient point, on connecting plate (21), be the circular-arc hole clipping corresponding with salient point that be intervally distributed with, by coordinating of salient point and hole clipping, make support (5) be positioned at relevant position.

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