CN103542376A

CN103542376A - Packing connection method of LED lamp shell assemblies

Info

Publication number: CN103542376A
Application number: CN201210247373.XA
Authority: CN
Inventors: 李先栗; 李博
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-13
Filing date: 2012-07-13
Publication date: 2014-01-29

Abstract

A packing connection method of LED lamp shell assemblies solves the problems that as for an exiting product, cost of shell assemblies and connection cost of the shell assemblies are relatively high, and safety performance is reduced because a metal radiator is exposed out. The packing connection method is characterized in that the outer surfaces of the shell assemblies needing connecting are sleeved with thermal contraction sleeves, and the thermal contraction sleeves contract by means of heating to be attached to the outer surfaces of the shell assemblies and firmly connected and fixed to the packed shell assemblies. After the packing connection method is adopted, cost of the shell assemblies and connection cost of the shell assemblies are obviously reduced, the outer surface of a lamp is not conductive, the lamp is safer, the cost performance of the LED lamp can be effectively improved, and acceleration of popularization and application of the LED lamp is facilitated.

Description

LED lamp housing assembly seal method of attachment

Affiliated technical field

The present invention relates to a kind of method of attachment of sealing of LED lamp housing assembly, belong to lighting source technical field, especially a kind ofly with suit heat-shrinkable tube, seal and the method that is connected LED lamp housing assembly,

Technical background

LED illuminating lamp is the desirable green illumination light source that Present Global is generally acknowledged, its luminous efficiency is very high, luminous efficiency than current electricity-saving lamp (being the compact fluorescent lamp of electronic ballast) approximately doubles, and with LED lamp, replaces corresponding electricity-saving lamp to can save energy approximately more than 50%! It is not mercurous, without mercury pollution, is almost unique efficient electric light sources without mercury pollution! Its working life is extremely long, and the LED lamp working life of good design reaches more than 50,000 hours, substantially " without changing "! It is not afraid of frequent switch, and one turn on light the brightlyest immediately, and serviceability is unrivaled! In addition, it also has the shatter-proof many merits that waits other light sources to be difficult to possess of sound construction.Therefore, LED illumination is very rapid in global development, and in general, the performance of LED is improving year by year, and price reduces year by year, and constantly refreshing of cost performance, indicates its opportunity of commanding global illumination market at hand.

At present, the bottleneck that LED lamp is applied is on the high side.Current situation is that the LED lamp of same light (flux) output than electricity-saving lamp price 3-6 doubly.Therefore, the cost of reduction LED lamp is its key of applying.The cost of LED lamp is mainly comprised of three parts, i.e. LED, drive circuit and casing assembly (comprising lamp holder, plastic, metal heat sink, printing opacity cell-shell etc.).Along with the progress of LED technology, in cost, the cost of LED and drive circuit declines year by year, and the cost of casing assembly changes not quite.For the LED lamp below the great 5W of consumption (illuminating effect be equivalent to electricity-saving lamp below 11W and the incandescent lamp bulb below 60W), the cost of casing assembly accounts for this 30%-50% of LED lamp assembly, therefore reduces casing assembly and assembly cost is very important.

Metal heat sink and with produced expense of being connected of other assemblies major part of casing assembly cost often, in order to make the exquisite appearance of metal heat sink, processing cost is higher; In addition, metal heat sink mostly is helicitic texture or mounting screw with being connected of adjacent component, and this also makes the processing of corresponding assembly and installation cost increase.Also need to point out, the metal heat sink that conventional LED lamp exposes is extremely doubted its security, and the LED lamp that most metals radiator exposes is unable to undergo shell high-potting, has potential safety hazard, and user has worry more.How just can make metal heat sink accomplish to eliminate completely high-voltage breakdown or electric leakage and the potential safety hazard that produces? here comprising a conflicting problem: for LED can high light efficiency, work to the long-life, must reduce as much as possible the operating temperature of LED, for this reason, the aluminum base circuit board that LED has been installed must be very tight with contacting of metal heat sink, between thermal resistance the smaller the better.Because the insulating barrier between aluminium base and LED cannot be stood high-potting, therefore must install insulating barrier between aluminium base and radiator additional, carry out electricity isolation, contradiction to be that wish improves the insulating barrier of this isolation of voltage endurance capability relatively thick; And want to make aluminium base as far as possible little to the thermal resistance of radiator, this insulating barrier is Bao Yuehao more, be really difficult to satisfactory to both parties!

In sum, existing LED lamp exists the cost of metal heat sink and connection thereof higher, and metal heat sink exposes and security is not good enough etc. that outstanding problem (is consulted patent of invention " a kind of LED bulb ", patent No. CN201110094207.6; Patent of invention " LED bulb ", patent No. CN201110130709).

Summary of the invention

The problems referred to above that exist in order to solve existing LED lamp, the present invention is as follows by the structural design of LED lamp: the casing assembly outer surface connecting at needs maybe needs the outer surface of the casing assembly junction of connection, suit thermal contraction casing tube, utilize heating thermal contraction casing tube is shunk and be close to case surface, will be connected with reinforcing and be fixed together by several casing assemblies of its tight enclosing.For the ease of each casing assembly energy basic fixed position when being set with heat-shrinkable tube, can coat a small amount of bonded adhesives in the junction of casing assembly, these glue bond together with heat-shrinkable tube, casing assembly after heat-shrinkable tube heat shrink, can improve the firmness of connection.If it is appropriate that casing assembly interconnects shape, the structural design at place, just can be coated with adhesive glue in junction.In order to improve radiating effect, reduce as much as possible the operating temperature of LED, can on printing opacity cell-shell and plastic, open air vent if desired, in metal heat sink, increase the fin that can increase radiator inner surface area.

After adopting patent of the present invention, the metal heat sink outer surface of LED lamp has covered thermal contraction casing tube, therefore process without surface fine, and seal connection owing to adopting heat-shrinkable tube, also without machining screw structure, generally adopt cast member, thereby greatly reduce the cost of metal heat sink and connection thereof.Due to heat shrinking sleeve pipe encapsulation metal heat sink, and sleeve pipe to be fabulous high voltage bearing insulating materials make, therefore security during contact is guaranteed.

Accompanying drawing explanation

Fig. 1 is the shell mechanism schematic diagram of the LED lamp of the embodiment of the present invention 1;

Fig. 2 is the shell mechanism explanation diagram of the LED lamp of the embodiment of the present invention 1;

Fig. 3 is the shell mechanism outline drawing of the candle type LED lamp of the embodiment of the present invention 2, wherein on heat-shrinkable tube, is printed on decorative stripe.

In figure, 1 is lamp holder; 2 plastics; 3 metal heat sinks; 4 printing opacity cell-shells; 5 thermal contraction casing tubes.

Specific embodiment

The embodiment of the present invention 1 is the LED bulb of 4W, as shown in Figure 1 and Figure 2.Wherein lamp holder (1) is E26 or 27 lamp holders, and plastic (2) is connected with lamp holder, and junction is connected with fixing by conventional " pressure hole " technique; Metal heat sink is aluminum casting; Printing opacity cell-shell is spherical glass cell-shell.Plastic (2), metal heat sink (3) are with printing opacity cell-shell (4) by Fig. 2 mutual " docking ", and joint is coated with glue bond, then as Fig. 2 is set with heat-shrinkable tube (5).Heat hot shrink sleeve (integral body enters the baking oven of 120 ℃), makes heat receive that sleeve pipe is subject to thermal contraction and by plastic, metal heat sink and printing opacity cell-shell tight enclosing and link together.

The embodiment of the present invention 2 is LED candle lamp shaped bulb of 3W, as shown in Figure 3.Its difference from Example 1 is that lamp holder is wherein E14 or E12 lamp holder; Printing opacity cell-shell is wherein candle rather than spherical; Plastic and cell-shell are provided with air vent; On thermal contraction casing tube wherein, be printed on the white stripes of decoration, also can on thermal contraction casing tube, stamp in advance product brand and specification etc.

Claims

1. a LED lamp housing assembly seals method of attachment, comprise being connected of lamp holder and printing opacity cell-shell, or being connected of metal heat sink and printing opacity cell-shell, or plastic, metal heat sink are connected with printing opacity cell-shell, it is characterized in that the outer surface suit thermal contraction casing tube in the junction of the casing assembly that is connected the outer surface of casing assembly or connects at needs, utilize and heat the outer surface that thermal contraction casing tube is shunk and be adjacent to casing assembly, make to need the several casing assemblies that connect under the tight enclosing of thermal contraction casing tube, connect securely and be fixed together.

2. the method for attachment of a kind of LED lamp housing assembly as claimed in claim 1, is characterized in that being coated with adhesive glue in the junction by between the casing assembly of heat shrinking sleeve pipe encapsulation.