CN204005846U

CN204005846U - A kind of light fixture radiating seat with Graphene bed course

Info

Publication number: CN204005846U
Application number: CN201420331406.3U
Authority: CN
Inventors: 邓凌峰; 夏燎原
Original assignee: Central South University of Forestry and Technology
Current assignee: Central South University of Forestry and Technology
Priority date: 2014-06-20
Filing date: 2014-06-20
Publication date: 2014-12-10
Anticipated expiration: 2024-06-20

Abstract

A heat sink for lamps with a graphene pad, including an aluminum base plate and a heat sink, the aluminum base plate is an aluminum alloy profile strip, and the heat sink is formed on its back, including several heat sink units, adjacent heat sinks A hot runner is arranged between them, and an LED lamp installation groove is arranged on the inner side of the aluminum substrate, and a number of heat soaking holes are evenly arranged on the inner side of the LED lamp installation groove, and the heat soaking hole is a concave frustum hole structure. And the bottom of the frustum hole structure has a convection hole leading directly to the outside of the aluminum substrate, and at the same time, a layer of graphene material coating is formed on the inner surface of the LED lamp installation groove and inside the frustum hole. The lamp heat sink of the utility model can effectively improve the heat dissipation efficiency of the high-power LED lamp, thereby ensuring the service life of related lamp components.

Description

A kind of light fixture radiating seat with Graphene bed course

Technical field

The utility model relates to the heat dissipation technology field of light fixture, is specially a kind of light fixture radiating seat with Graphene bed course that can be used for high-powered LED lamp.

Background technology

LED light fixture has high brightness, energy-conservation effect, uses more and more in various occasions.But, the luminous efficiency that it has been generally acknowledged that in the prior art LED lamp is lower, most of electric energy is all converted into heat energy, and in common LED technology, all think the luminous intensity of LED and forward current IF almost linear, people are high-power in order to pursue, the LED product of high brightness, constantly reach the object of the luminous flux that improves LED by increasing forward current IF value, in increasing electric current, the heat that LED produces also can proportionally increase, if this part heat energy can not distribute in time, will make the interior junction temperature of PN junction of chip raise, this can cause the red shift of chip peak wavelength, depart from the absworption peak of fluorescent material, cause that power efficiency declines, cause fluorescent material aging, epoxy resin flavescence, accelerate device aging etc., thereby often need heat radiation to ensure that it normally works.

For solving heat dissipation problem, on high-powered LED lamp, all need to be provided with fin, most of heat is discharged fast, traditional LED lamp heat radiating fin structure is all to have radiating fin in a side length of fin base plate, base plate has accounted for very large area, its area of dissipation is little, radiating efficiency is low, if and strengthen the heat dissipation base of light fixture, increasing radiating effect by the mode of increase area of dissipation need to be at the inner extra heat sink section bar of installing of the heat-dissipating casing of die casting, but the thermal conductivity factor of the pack alloy that ripe aluminium alloy compression casting technology adopts is generally all less than 100W/m.K, increase the gap of hot biography, cannot take into account heat radiation and sealing protection effect.

Utility model content

The technical problem that the utility model solves is to provide a kind of light fixture radiating seat with Graphene bed course, to solve the shortcoming in above-mentioned background technology.

The technical problem that the utility model solves realizes by the following technical solutions:

A kind of light fixture radiating seat with Graphene bed course, comprise aluminium base and fin, described aluminium base is an aluminium alloy extrusions strip shape body, fin is molded over its back, comprise some fin units, between adjacent fin, be provided with hot flow path to facilitate natural air to carry out heat loss through convection, and be provided with LED lamp mounting groove in the inner side of described aluminium base, this LED lamp mounting groove inner side is evenly provided with some equal hot holes, the frustum pore structure that described equal hot hole is indent, and have in the bottom of this frustum pore structure through to the convection holes in aluminium base outside, simultaneously, in the inner surface of described LED lamp mounting groove and frustum hole, form one deck grapheme material coating.

In the utility model, described fin comprises multiple fin units, fin unit is plastic-blasting aluminium flake, at aluminium base back parallel arrangement, gap between adjacent fin unit is 15 ~ 20mm, and be provided with radiating seat mounting groove in the centre position of fin, in order to facilitate cross-ventilation to carry out better heat radiation.

In the utility model, the thickness of described grapheme material coating is 200 ~ 300 μ m, in order to accelerate the derivation speed of the heat energy that the work of LED lamp produces, improves the heat conductivility of radiator.

In the utility model, the inside edge of LED lamp mounting groove is provided with lens installing hole, directly in the groove position of LED lamp mounting groove, mirror lens is installed with reflecting part heat in order to convenient.

Beneficial effect: the utility model utilizes aluminium alloy extrusions as heat radiation agent structure; coordinate the high thermal conductivity of grapheme material to dispel the heat; in improving material thermal conductivity energy; further improve the radiating effect of LED lamp by improving thermal source part and the swept area of heat radiation main body; meanwhile, its radiating seat main body is difficult for corrosion, is convenient to transport and dismounting; and maintenance easy to clean, can provide protection comprehensively and effectively to outdoor high-powered LED lamp.

Brief description of the drawings

Fig. 1 is the schematic diagram of the utility model preferred embodiment.

Fig. 2 is the detailed schematic of the A part of the utility model preferred embodiment.

Wherein: 1, aluminium base; 2, fin; 3, radiating seat mounting groove; 4, lens installing hole; 5, convection holes; 6, equal hot hole; 7, grapheme material coating.

Detailed description of the invention

For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1, the preferred embodiment of a kind of light fixture radiating seat with Graphene bed course of Fig. 2, in the present embodiment, radiating seat is a strip structure, its length is consistent with the installation length of the LED unit of LED lamp, on it, include aluminium base 1 and be molded over the fin 2 at aluminium base 1 back, fin 2 comprises that multi-disc becomes the fin unit of parallel arrangement, these fin units are plastic-blasting aluminium flake and make, and the gap between adjacent fin unit is 15mm, to facilitate, radiating seat is carried out to limit mounting and be provided with radiating seat mounting groove 3 at the root of two fin units of the position, middle of fin.

And the groove structure that is indent in the bottom of radiating seat, this groove is LED lamp mounting groove, its inner surface is provided with some LED lamp installing holes, and is provided with lens installing hole 4 in the lower edge of LED lamp mounting groove and in the groove position of LED lamp mounting groove, mirror lens is installed with reflecting part heat to facilitate directly.In addition, be provided with equal hot hole 6 as shown in Figure 2 at the inner surface of this LED lamp mounting groove, the inner surface of the LED lamp mounting groove that all hot hole 6 evenly arranges, for the frustum pore structure of indent, and the bottom at equal hot hole 6 is provided with convection holes 5, convection holes 5 is through to aluminium base 1 outside, simultaneously, at the inner surface of LED lamp mounting groove, all in the first half section part of hot hole 6 and convection holes 5, form one deck grapheme material coating 7, the thickness of this grapheme material coating 7 is 300 μ m, the fin that coordinates aluminium base 1 and plastic-blasting aluminium flake to make can effectively improve the derivation speed of the heat energy of high-powered LED lamp, improve the heat conductivility of radiator.

More than show and described general principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and description, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. A lamp cooling seat with a graphene cushion layer, comprising an aluminum base plate and a heat sink, characterized in that the aluminum base plate is an aluminum alloy profile strip, and the heat sink is formed on its back, including several heat sink units , a hot runner is arranged between adjacent heat sinks, and an LED lamp installation groove is arranged on the inside of the aluminum substrate, and a number of heat soaking holes are uniformly arranged on the inside of the LED lamp installation groove, and the heat soaking holes are concave The frustum hole structure, and the bottom of the frustum hole structure has a convection hole leading to the outside of the aluminum substrate. At the same time, a layer of graphene material coating is formed on the inner surface of the LED lamp installation groove and the frustum hole. layer.

2. A lamp cooling seat with a graphene pad according to claim 1, wherein the heat sink includes a plurality of heat sink units, and the heat sink units are plastic-sprayed aluminum sheets, which are placed on the back of the aluminum substrate. Arranged in parallel, the gap between adjacent heat sink units is 15~20mm.

3. A kind of heat sink for lamps with a graphene pad according to claim 1, characterized in that, a heat sink installation groove is arranged at the middle position of the heat sink.

4. A lamp heat sink with a graphene cushion according to claim 1, wherein the thickness of the graphene material coating is 200-300 μm.