CN103062729A - Light-emitting diode (LED) daylight tube and connection method for light source baseplate and heat dissipation base thereof - Google Patents
Light-emitting diode (LED) daylight tube and connection method for light source baseplate and heat dissipation base thereof Download PDFInfo
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- CN103062729A CN103062729A CN2011103236224A CN201110323622A CN103062729A CN 103062729 A CN103062729 A CN 103062729A CN 2011103236224 A CN2011103236224 A CN 2011103236224A CN 201110323622 A CN201110323622 A CN 201110323622A CN 103062729 A CN103062729 A CN 103062729A
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- light source
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- cooling base
- source substrate
- heat dissipation
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Abstract
The invention provides a light-emitting diode (LED) daylight tube and a connection method for a light source baseplate and a heat dissipation base thereof. The daylight tube comprises the light source baseplate and the heat dissipation base. Two edges of the light source baseplate are embedded in two horizontal necks of the heat dissipation base. A heat conduction surface on the lower portion of the light source baseplate closely contacts with a heat absorption surface on the upper portion of the heat dissipation base. The upper surfaces of the edges of the light source baseplate also closely contact with the inner surfaces of the upper edges of the necks of the heat dissipation base. The connection method for the light source baseplate and the heat dissipation base includes the steps that the horizontal necks with opposite openings are formed above two sides of the heat absorption surface of the heat dissipation base, the heat conduction surface on the lower portion of the light source baseplate faces toward the heat absorption surface on the upper portion of the heat dissipation base, the light source basepate is inserted into the necks of the heat dissipation base, the outer surfaces of the upper edges of the necks of the heat dissipation base are squeezed and connected in a riveted mode, and the heat conduction surface on the lower portion of the light source baseplate is closely contacted with the heat absorption surface on the upper portion of the heat dissipation base through the slight deformation of the upper edges of the necks. The LED daylight tube and the connection method for the light source baseplate and the heat dissipation base thereof have the advantages of being high in production efficiency, small in potential safety hazard, and high in heat conduction property.
Description
Technical field
The present invention relates to lighting technical field, relate in particular to the LED light-emitting device, more specifically say the radiator structure in a kind of LED of being applied in light-emitting device.
Background technology
At present, for LED fluorescent tube light source characteristic, heat dissipation design and the manufacturing technique requirent radiating effect during to light source works is particularly important.Also larger to the more heat that produces of the light source of LED fluorescent tube own, if heat dissipation design and production technology are for then greatly reducing the service life of light source and the decay of function to the parameter that is not designed in this respect its application.
LED fluorescent tube normal operation aluminium alloy on the selection heat sink material is the heat radiation main body of light fixture for this reason, improves radiating effect with this.Add from the production technology aspect and consider, reach all fully heat radiations of each light source point for light source and radiation aluminium alloy are contacted fully, light source must be close on the radiation aluminium alloy.
On the LED industry, the common method that aluminium base is fixed on the radiation aluminium alloy has the screw of employing to fix, apply the modes such as heat conduction bonded adhesives, stickup bond plies at present.
1. as adopt screw to fix, not only time-consuming during production, and easily loosening, like this to there being potential safety hazard, moreover heat-conducting effect neither be ideal, because must there be the air gap in the centre, causes larger thermal contact resistance.
2. as adopt coating heat-conducting cream etc., the heat-conducting cream price of thermal conductivity factor is more expensive preferably on the one hand, and low thermal conductivity factor does not reach again good heat-conducting effect, applies on the other hand this cream and be suitable time-consuming.
Summary of the invention
The technical problem to be solved in the present invention is: the deficiency for above-mentioned prior art exists provides conductive structure and manufacture craft between a kind of light source substrate and the cooling base.
The present invention addresses the above problem the technical scheme that proposes to be: a kind of LED fluorescent tube, comprise light source substrate and cooling base, two edges of this light source substrate are embedded in two horizontal draw-in grooves of cooling base, the heat-absorbent surface close contact on the heat-transfer area of light source substrate bottom and cooling base top.The upper surface at light source substrate edge also with the draw-in groove of cooling base on the inner surface close contact on edge.
Cooling base is aluminium alloy extrusions, and light source substrate is aluminium material.The top of light source substrate is welded with LED paster light source.The outer surface on edge leaves the vestige of squeezed riveting on the cooling base draw-in groove.
For addressing the above problem another technical scheme that proposes be: a kind of light source substrate of LED fluorescent tube and the method for attachment of cooling base may further comprise the steps.
1) above cooling base heat-absorbent surface both sides, molds the relative horizontal draw-in groove of opening.
2) the heat-absorbent surface of the heat-transfer area of light source substrate bottom towards cooling base top, light source substrate is inserted in the draw-in groove of cooling base.
3) squeezed riveting is carried out on the outer surface on edge on the cooling base draw-in groove, by the slight deformation on edge on the draw-in groove, reached the heat-transfer area of light source substrate bottom and the heat-absorbent surface close contact on the cooling base top.
Wherein, the spatial altitude in the cooling base draw-in groove step 1) is slightly larger than the thickness at light source substrate edge.The top of the light source substrate step 2) is welded with LED paster light source.Step 3) squeezed riveting in is roll extrusion riveted joint or the riveted joint of roll extrusion manually of single lead screw ex truding briquetting machine.
Compared with prior art, adopt the advantage of technical scheme of the present invention to be.
1. assemble fairly simple, but manual compression riveted joint or automation squeezed riveting, production efficiency is high, can save production cost in a large number.
2. do not have detachability, avoided potential safety hazard.
3. two thermal conductive surfaces more fully contact, and have increased the area of heat conduction, have improved heat conductivility.
Description of drawings
Fig. 1 is the stereogram of the light source substrate 1 of the embodiment of the invention.
Fig. 2 is the stereogram of the cooling base 2 of the embodiment of the invention.
Fig. 3 is the cross section cutaway view of Fig. 2.
Fig. 4 is the stereogram that the light source substrate 1 edge 1A of the embodiment of the invention inserts cooling base 2 draw-in grooves.
Fig. 5 is the stereogram after the embodiment of the invention roll forming.
Fig. 6 is the cross section cutaway view of Fig. 5.
Fig. 7 is the partial enlarged drawing of Fig. 5.
The specific embodiment
In order to make those skilled in the art person understand better technical scheme of the present invention, be described in further detail below in conjunction with drawings and Examples.
The light source substrate 1 of the embodiment of the invention shown in Figure 1 is aluminium material, and heat-transfer area 1B is in its underpart, and LED paster light source 3 is welded thereon section.The cooling base 2 of Fig. 2, the embodiment of the invention shown in Figure 3 is aluminium alloy extrusions, and the top of its heat-absorbent surface 2B both sides, top forms the relative horizontal draw-in groove 1A of opening.
As shown in Figure 4, with two edge 1A of aluminium matter light source substrate 1, in the horizontal draw-in groove 2A of the cooling base 2 that the insertion aluminium alloy extrusions is made, the heat-transfer area 1B of light source substrate 1 bottom is towards the heat-absorbent surface 2B on cooling base 2 tops.
In the making of light source substrate 1 and cooling base 2, spatial altitude size in the cooling base 2 draw-in groove 2A is slightly larger than the gauge of light source substrate 1 edge 1A, edge 1A leaves the clearance space of a little in the draw-in groove 1A that packs into the time, and being convenient to like this light source substrate 1 can be inserted in the cooling base 2 like a cork.
Then by the special for this reason single lead screw ex truding briquetting machine of technological design, the outer surface on the upper edge of extruding cooling base 2 draw-in groove 1A is embedded in two horizontal draw-in groove 1A of cooling base 21 two edge 1A of light source substrate.By local extruding, be riveted together, with reference to figure 5, Fig. 6 between the two.Pass through like this slight deformation on the upper edge of draw-in groove 1A, reach the close contact that the heat-absorbent surface 2B on the heat-transfer area 1B of light source substrate 1 bottom and cooling base 2 tops can be cmpletely, increased effective heat-conducting area, so just can reach extraordinary radiating effect, and can not become flexible, non-deformable.
In addition, single lead screw ex truding briquetting machine can be regulated needed extruding dynamics according to the size of cooling base aluminium alloy extrusions and the degree of tightness of needs riveted joint.When dynamics was larger, the inner surface on the upper edge of the upper surface of light source substrate 1 edge 1A and the draw-in groove 1A of cooling base 2 also can close contact.This type of invention is difficult for demolition for disposable riveting molding, and need could demolition after destroying aluminium alloy extrusions.
Squeezed riveting can be adopted roll extrusion riveted joint or the riveted joint of roll extrusion manually of single lead screw ex truding briquetting machine.The outer surface on the upper edge of cooling base 1 draw-in groove 1A leaves the vestige 1C of squeezed riveting after the roll extrusion, undaform striped as shown in Figure 7, but do not affect the appearance requirement of product.
The light source substrate 1 of this kind LED fluorescent tube and the method for attachment of cooling base 2 have replaced aluminium alloy extrusions and aluminium base and have adopted when being connected and normally usedly play glue or the connected mode of other patterns such as screw.
Benefit when it uses the method has: simple, easy to operate during this invention assembling, but manual compression riveted joint or automation squeezed riveting can realize the mechanization production in enormous quantities, greatly enhance productivity.Than playing glue or other patterns such as lock screw etc. are saved time, appearance surfaces is easy to clean, and is indeformable and rivet fastening not fragile.
This squeezed riveting has can not demolition, dismantle must destroy heat-dissipation aluminum sectional material can demolition, I guarantee user's use safety like this, avoid the user to have and get an electric shock or loosening other potential safety hazards brought of aluminium base.
Can improve the heat-conducting effect of system after the invention of this technique, aluminium base with heat-dissipation aluminum sectional material by squeezed riveting after, these two thermal conductive surfaces of heat-transfer area 1B and heat-absorbent surface 2B are more fully contacted, increased the area of heat conduction, improved heat conductivility.
Foregoing is preferred embodiment of the present invention only, is not the present invention is carried out the scope restriction.Those skilled in the art can carry out corresponding flexible or modification very easily according to main design of the present invention and spirit.Therefore protection scope of the present invention should be as the criterion with the covering scope of claim.
Claims (10)
1. LED fluorescent tube, comprise: light source substrate (1) and cooling base (2), it is characterized in that, two edges (1A) of this light source substrate (1) are embedded in two horizontal draw-in grooves (1A) of cooling base (2), heat-absorbent surface (2B) close contact on the heat-transfer area (1B) of light source substrate (1) bottom and cooling base (2) top.
2. according to LED fluorescent tube claimed in claim 1, it is characterized in that the inner surface close contact on the upper edge of the draw-in groove (1A) of the upper surface at described light source substrate (1) edge (1A) and cooling base (2).
3. according to LED fluorescent tube claimed in claim 2, it is characterized in that, described cooling base (2) is aluminium alloy extrusions.
4. according to LED fluorescent tube claimed in claim 2, it is characterized in that, described light source substrate (1) is aluminium material.
5. according to LED fluorescent tube claimed in claim 2, it is characterized in that, the top of described light source substrate (1) is welded with LED paster light source (3).
6. according to LED fluorescent tube claimed in claim 2, it is characterized in that, the outer surface on the upper edge of described cooling base (2) draw-in groove (1A) leaves the vestige (1C) of squeezed riveting.
7. the method for attachment of the light source substrate of a LED fluorescent tube (1) and cooling base (2) may further comprise the steps:
Top in cooling base (2) heat-absorbent surface (2B) both sides molds the relative horizontal draw-in groove (1A) of opening;
The heat-absorbent surface (2B) of the heat-transfer area (1B) of light source substrate (1) bottom towards cooling base (2) top, light source substrate (1) is inserted in the draw-in groove (1A) of cooling base (2);
Outer surface to the upper edge of cooling base (2) draw-in groove (1A) carries out squeezed riveting, by the slight deformation on the upper edge of draw-in groove (1A), reach the heat-transfer area (1B) of light source substrate (1) bottom and heat-absorbent surface (2B) close contact on cooling base (2) top.
8. according to method of attachment claimed in claim 7, it is characterized in that described step 1) in cooling base (2) draw-in groove (1A) in spatial altitude be slightly larger than the thickness at light source substrate (1) edge (1A).
9. according to method of attachment claimed in claim 7, it is characterized in that described step 2) in the top of light source substrate (1) be welded with LED paster light source (3).
10. according to method of attachment claimed in claim 7, it is characterized in that described step 3) in squeezed riveting be roll extrusion riveted joint or the riveted joint of roll extrusion manually of single lead screw ex truding briquetting machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103236224A CN103062729A (en) | 2011-10-21 | 2011-10-21 | Light-emitting diode (LED) daylight tube and connection method for light source baseplate and heat dissipation base thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103236224A CN103062729A (en) | 2011-10-21 | 2011-10-21 | Light-emitting diode (LED) daylight tube and connection method for light source baseplate and heat dissipation base thereof |
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| Publication Number | Publication Date |
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| CN103062729A true CN103062729A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103236224A Pending CN103062729A (en) | 2011-10-21 | 2011-10-21 | Light-emitting diode (LED) daylight tube and connection method for light source baseplate and heat dissipation base thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613342A (en) * | 2014-12-20 | 2015-05-13 | 东莞市闻誉实业有限公司 | LED lamp with changeable size |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2662182Y (en) * | 2003-10-31 | 2004-12-08 | 刘钢 | Radial lamella type radiator |
| CN201017875Y (en) * | 2007-03-08 | 2008-02-06 | 洋鑫科技股份有限公司 | Luminous diode heat radiation structure |
| CN201688188U (en) * | 2010-04-21 | 2010-12-29 | 深圳富达金五金塑胶有限公司 | Integrated LED lamp tube |
| CN201925837U (en) * | 2011-01-10 | 2011-08-10 | 深圳市正耀科技有限公司 | LED fluorescent tube |
| CN202281111U (en) * | 2011-10-21 | 2012-06-20 | 深圳长城开发科技股份有限公司 | LED fluorescent tube |
-
2011
- 2011-10-21 CN CN2011103236224A patent/CN103062729A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2662182Y (en) * | 2003-10-31 | 2004-12-08 | 刘钢 | Radial lamella type radiator |
| CN201017875Y (en) * | 2007-03-08 | 2008-02-06 | 洋鑫科技股份有限公司 | Luminous diode heat radiation structure |
| CN201688188U (en) * | 2010-04-21 | 2010-12-29 | 深圳富达金五金塑胶有限公司 | Integrated LED lamp tube |
| CN201925837U (en) * | 2011-01-10 | 2011-08-10 | 深圳市正耀科技有限公司 | LED fluorescent tube |
| CN202281111U (en) * | 2011-10-21 | 2012-06-20 | 深圳长城开发科技股份有限公司 | LED fluorescent tube |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613342A (en) * | 2014-12-20 | 2015-05-13 | 东莞市闻誉实业有限公司 | LED lamp with changeable size |
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Application publication date: 20130424 |