CN101737651B - LED (Light Emitting Diode) lamp - Google Patents
LED (Light Emitting Diode) lamp Download PDFInfo
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- CN101737651B CN101737651B CN2009101894227A CN200910189422A CN101737651B CN 101737651 B CN101737651 B CN 101737651B CN 2009101894227 A CN2009101894227 A CN 2009101894227A CN 200910189422 A CN200910189422 A CN 200910189422A CN 101737651 B CN101737651 B CN 101737651B
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- heat sink
- light source
- led light
- main heat
- led lamp
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Abstract
The invention provides an LED (Light Emitting Diode) lamp (100) which has both heat radiating function and electromagnetic shielding function. The LED lamp (100) comprises a shell (6) and an LED light source assembly which comprises an LED light source (4), a drive circuit board (9) and an LED light source switch control device. A heat radiating device which separates the LED light source (4) from the drive circuit board (9) is arranged in the LED lamp (1000) and comprises a main heat radiating board (1) and an auxiliary heat radiating board (2), and the auxiliary heat radiating board is attached to the main heat radiating board (1). Since the main heat radiating board (1) and the auxiliary heat radiating board (2) can effectively and reliably cool the drive circuit board (9) and the main heat radiating board (1) can cover the drive circuit board (9) effectively, therefore, the LED light source assembly achieves reliable electromagnetic shielding function and guarantees the stable working of the LED light source.
Description
Technical field
The invention belongs to lighting technical field.Particularly, the present invention relates to the LED lamp.
Background technology
As everyone knows, the LED lamp life-span was 100,000 hours, normally used following service life even can surpass life-span of people.Except having overlength service life, LED has the advantage of power saving simultaneously.General LED lamp can provide the lasting illumination more than tens hours even 100 hours, and relatively it is with the obvious advantage with other lamp.The glittering again LED product of super power saving is subjected to numerous outdoor fans' favor.But led light source is different with ordinary light source, and it needs drive circuit board, and the heating problem of drive circuit board can badly influence the service life of whole LED light fixture, so, led light source is applied to the heat dissipation problem that light fixture must solve its drive circuit.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of LED lamp, and it not only has heat sinking function and also has electro-magnetic screen function.
The present invention solves the problems of the technologies described above the technical scheme that is adopted and is: construct a kind of LED lamp, comprise housing and be fixed on the interior led light source assembly of described housing, described led light source assembly comprises led light source, drive luminous drive circuit board of described led light source and led light source switch controlling device, wherein, be provided with the heat abstractor of spaced apart described led light source and described drive circuit board in the described LED lamp, described heat abstractor comprises main heat sink and secondary heat sink, described main heat sink covers on the described drive circuit board, and described main heat sink middle part is formed with the groove that holds and fix described led light source; Described secondary heat sink middle part has centre bore, and described secondary heat sink is fitted on the described main heat sink, and the led light source that is fixed in the described groove passes described centre bore.
In LED lamp of the present invention, described led light source switch controlling device comprises switch enclosure and control lever, and an end of described control lever extends to described hull outside, and described main heat sink and described secondary heat sink are respectively equipped with the opening that holds described switch enclosure.
In LED lamp of the present invention, described led light source assembly also comprises cover plate, described cover plate, described drive circuit board, described main heat sink and described secondary heat sink are fastenedly connected by equally distributed screw, are equipped with described drive circuit board between described cover plate and the described main heat sink.
In LED lamp of the present invention, form the claw that is useful on fixing described led light source in the groove of described main heat sink, described claw evenly distributes around described led light source.
In LED lamp of the present invention, form the in-flanges that is pressed on the described led light source in the centre bore of described secondary heat sink week.
In LED lamp of the present invention, post the Copper Foil that covers its bottom surface on the described cover plate.
In LED lamp of the present invention, the bottom portion of groove of described main heat sink scribbles heat-conducting silicone grease.
In LED lamp of the present invention, described main heat sink periphery and described secondary heat sink periphery form respectively mutually away from flanging.Specifically, described main heat sink periphery forms the flanging towards described drive circuit board, and described secondary heat sink periphery forms the flanging away from described drive circuit board.
In LED lamp of the present invention, described main heat sink is provided with at least one through wires hole.
In LED lamp of the present invention, described main heat sink and described secondary heat sink are the copper heat sink.
Implement LED lamp of the present invention and can obtain following beneficial effect:
1. because heat abstractor comprises main heat sink and secondary heat sink, and main heat sink covers on the drive circuit board, main heat sink middle part is formed with and holds the also groove of fixed L ED light source; Secondary heat sink is fitted on the main heat sink, and has centre bore in the middle part of the secondary heat sink, and led light source stretches out from centre bore, so this main heat sink and secondary heat sink not only can effectively and reliably dispel the heat to drive circuit board; And main heat sink covers drive circuit board effectively, thereby has reliable electro-magnetic screen function, ensures the steady operation of led light source.
2. because the led light source switch controlling device comprises switch enclosure and control lever, one end of control lever extends to hull outside, main heat sink and secondary heat sink are respectively equipped with the opening that holds switch enclosure, so LED modulated structure of the present invention is very compact, realize drive circuit board dispelled the heat and the situation of electromagnetic shielding under, need not LED lamp overall structure is changed.
3. because the led light source assembly also comprises cover plate, cover plate, drive circuit board, main heat sink and secondary heat sink are fastenedly connected by equally distributed screw, so LED modulated structure compactness of the present invention, realize drive circuit board dispelled the heat and the situation of electromagnetic shielding under, need not to be the heat abstractor extending space, thereby make the LED modulated structure simple, with low cost.
4. owing to form the claw of fixed L ED light source in the groove of main heat sink, claw evenly distributes around led light source, thus can pass through the fastening reliably led light source of claw, and make structure compact more.
5. owing to form the in-flanges that is pressed on the led light source week in the centre bore of secondary heat sink, so fixed L ED light source more reliably.
6. owing to post the Copper Foil that covers its bottom surface on the cover plate,, more reliably drive circuit board is carried out electromagnetic shielding, ensure the steady operation of led light source so Copper Foil and heat abstractor can form totally enclosed heat abstractor.
7. because the bottom portion of groove at main heat sink middle part scribbles heat-conducting silicone grease,, strengthen radiating effect so can further improve the heat sinking function of main heat sink.
Since main heat sink periphery and secondary heat sink periphery form respectively mutually away from flanging, so can improve radiating effect and strengthen self rigidity by its flanging that is provided with separately.
9. because main heat sink is provided with at least one through wires hole,, guarantee its steady operation so can be electrically connected led light source and drive circuit board easily and reliably by this through wires hole.
10. because main heat sink and secondary heat sink are the copper heat sink, so can be by copper higher relatively electrical conductivity and the further electro-magnetic screen function that improves main heat sink and secondary heat sink of magnetic conductivity.
Description of drawings
When reading following detailed description with reference to the accompanying drawings, the features and advantages of the present invention will become better understood, and represent identical parts at identical Reference numeral in each accompanying drawing, in the accompanying drawing:
Fig. 1 is the schematic cross sectional views of the LED lamp of the preferred embodiments of the present invention.
Fig. 2 is the schematic plan of main heat sink of the LED lamp of the preferred embodiments of the present invention.
Fig. 3 is the schematic side elevation of main heat sink of the LED lamp of the preferred embodiments of the present invention.
Fig. 4 is the perspective schematic view of main heat sink of the LED lamp of the preferred embodiments of the present invention.
Fig. 5 is the schematic plan of secondary heat sink of the LED lamp of the preferred embodiments of the present invention.
Fig. 6 is the schematic side elevation of secondary heat sink of the LED lamp of the preferred embodiments of the present invention.
Fig. 7 is the perspective schematic view of secondary heat sink of the LED lamp of the preferred embodiments of the present invention.
Description of reference numerals
The 100LED lamp
1 main heat sink
12 grooves
13 claws
14 screws
15 through wires holes
16 through wires holes
17 openings
18 flangings
2 secondary heat sinks
22 centre bores
23 in-flanges
24 screws
25 through wires holes
26 through wires holes
27 openings
28 flangings
3 screws
The 4LED light source
5 reflective mirrors
6 housings
7 switch enclosures
8 control levers
9 drive circuit boards
10 cover plates
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and the specific embodiments.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1, the LED lamp 100 of present embodiment comprises the led light source assembly in housing 6 and the installation housing 6.The led light source assembly comprises drive circuit board 9 and the led light source switch controlling device that led light source 4, driving LED light source 4 are luminous.The led light source switch controlling device comprises switch enclosure 7 and control lever 8.Led light source 4, reflective mirror 5, switch enclosure 7, control lever 8, led light source drive circuit board 9 and cover plate 10 have been shown among Fig. 1, and these parts all belong to the technology contents that those of ordinary skills can learn, do not give unnecessary details at this.
In LED lamp of the present invention, in LED lamp 100, be provided with the heat abstractor of spaced apart led light source 4 and drive circuit board 9, heat abstractor comprises tabular main heat sink 1 and secondary heat sink 2.Yet as described later, heat abstractor of the present invention also plays a role as electromagnetic screen.In brief, heat abstractor of the present invention adopts main heat sink 1 and secondary heat sink 2 spaced apart led light source 4 and the drive circuit boards of being made by high conduction, permeability magnetic material 9, thereby can realize electro-magnetic screen function effectively; In addition, also form closed cavity with ccontaining drive circuit board 9, thereby can realize electro-magnetic screen function more effectively by set Copper Foil on main heat sink 1 and the cover plate 10.
Particularly, as shown in Figure 1, main heat sink 1 and secondary heat sink 2 are clipped between led light source 4 and the drive circuit board 9.Exactly, main heat sink 1 and secondary heat sink 2 are closely fitted mutually.Cover plate 10 is provided with equally distributed three screw posts, by this screw post and cooperating of screw fixing main heat sink 1 and secondary heat sink 2.As described later, main heat sink 1 is provided with three screws 14, and secondary heat sink 2 is provided with three screws 24, and screw 24 aligns respectively with screw 14.Under confined state, the screw post passes this screw 14 and screw 24 respectively, and cover plate 10, drive circuit board 9, main heat sink 1 and secondary heat sink 2 are fastenedly connected thus.
Shown in Fig. 2 to 4, be formed with at main heat sink 1 middle part and hold and the groove 12 of fixed L ED light source 4.This main heat sink 1 roughly is disc, and the cross section of groove 12 is rounded, and groove 12 is positioned at the central authorities of this main heat sink 1.Form the claw 13 of fixed L ED light source 4 in this groove 12.As shown in Figure 2, this claw 13 is to the centroclinal lug of groove 12, and claw 13 distributes equably around led light source 4, so that dynamics is blocked led light source 4 equably.Claw 13 on this main heat sink 1 can pass through mould punch forming integratedly.In addition, main heat sink 1 is provided with 3 through wires holes, is respectively a bigger through wires hole 15 and two less through wires holes 16.Certainly, the invention is not restricted to this, the through wires hole of other quantity can be set, as long as can satisfy the wiring between led light source 4 and the drive circuit board 9.In addition, also be provided with 3 equally distributed screws 14 on the main heat sink 1.This screw 14 is used for cooperating with screw post on the cover plate 10.Can clearly be seen that from Fig. 1 for the led light source switching device is set compactly, main heat sink 1 is provided with the opening 17 that holds switch enclosure 7.In addition, for the rigidity that increases main heat sink 1 and improve radiating effect, main heat sink 1 periphery forms the flanging 18 towards drive circuit board 9.In other words, this flanging 18 is towards drive circuit board 9 one sides.For increasing the radiating effect of main heat sink 1, before the led light source assembly is installed, apply heat-conducting silicone grease on groove 12 inner surfaces.
Shown in Fig. 5 to 6, secondary heat sink 2 is fitted on the main heat sink 1.And secondary heat sink 2 middle parts have centre bore 22, and the led light source 4 that is fixed in the groove 12 passes centre bore 22.This pair heat sink 2 roughly is disc, and centre bore 22 is a circular hole, and centre bore 22 is positioned at the central authorities of this pair heat sink 2.Led light source 4 stretches out from this centre bore 22.For the led light source switching device is set compactly, secondary heat sink 2 is provided with the opening 27 that holds switch enclosure 7.With main heat sink 1 similarly, for the rigidity that increases secondary heat sink 2 and improve radiating effect, secondary heat sink 2 peripheries form the flanging 28 away from drive circuit board 9.In other words, this flanging 28 is towards the emission side of led light source 4.And, form the in-flanges 23 that is pressed on the led light source 4 in the centre bore of secondary heat sink 2 week.In-flanges 23 on this pair heat sink 2 can pass through mould punch forming integratedly.Like this, by in-flanges 23 and claw 13, just led light source 4 can be fixed in the groove 12 reliably.
For realizing effectiveness better, on cover plate 10, paste the Copper Foil (not shown) that covers its bottom surface.Like this, Copper Foil and heat abstractor form totally enclosed heat abstractor, more reliably drive circuit board 9 are carried out electromagnetic shielding, ensure the steady operation of led light source 4.In addition, in certain embodiments of the present invention, main heat sink 1 and secondary heat sink 2 are the copper heat sink.Because copper has higher electrical conductivity and magnetic conductivity, so can further improve the electro-magnetic screen function of main heat sink 1 and secondary heat sink 2 like this.
Although this paper has described many embodiment, those skilled in the art will appreciate that and under the situation that does not break away from the spirit that is defined by the following claims and scope thereof, to make other modification or change.Protection scope of the present invention should be determined according to claims.
Claims (10)
1. LED lamp, comprise housing and be fixed on the interior led light source assembly of described housing, described led light source assembly comprises led light source, drives luminous drive circuit board and the led light source switch controlling device of described led light source, it is characterized in that, be provided with the heat abstractor of spaced apart described led light source and described drive circuit board in the described LED lamp, described heat abstractor comprises main heat sink and secondary heat sink;
Described main heat sink covers on the described drive circuit board, and described main heat sink middle part is formed with the groove that holds and fix described led light source;
Described secondary heat sink middle part has centre bore, and described secondary heat sink is fitted on the described main heat sink, and the led light source that is fixed in the described groove passes described centre bore.
2. LED lamp according to claim 1, it is characterized in that, described led light source switch controlling device comprises switch enclosure and control lever, and an end of described control lever extends to described hull outside, and described main heat sink and described secondary heat sink are respectively equipped with the opening that holds described switch enclosure.
3. LED lamp according to claim 1, it is characterized in that, described led light source assembly also comprises cover plate, described cover plate, described drive circuit board, described main heat sink and described secondary heat sink are fastenedly connected by equally distributed screw, are equipped with described drive circuit board between described cover plate and the described main heat sink.
4. LED lamp according to claim 1 is characterized in that, forms the claw that is useful on fixing described led light source in the groove of described main heat sink, and described claw evenly distributes around described led light source.
5. LED lamp according to claim 1 is characterized in that, forms the in-flanges that is pressed on the described led light source in the centre bore of described secondary heat sink week.
6. LED lamp according to claim 1 is characterized in that, posts the Copper Foil that covers its bottom surface on the described cover plate.
7. LED lamp according to claim 1 is characterized in that the bottom portion of groove of described main heat sink scribbles heat-conducting silicone grease.
8. LED lamp according to claim 1 is characterized in that, described main heat sink periphery and described secondary heat sink periphery form respectively mutually away from flanging.
9. LED lamp according to claim 1 is characterized in that, described main heat sink is provided with at least one through wires hole.
10. LED lamp according to claim 1 is characterized in that, described main heat sink and described secondary heat sink are the copper heat sink.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101894227A CN101737651B (en) | 2009-12-24 | 2009-12-24 | LED (Light Emitting Diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101894227A CN101737651B (en) | 2009-12-24 | 2009-12-24 | LED (Light Emitting Diode) lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101737651A CN101737651A (en) | 2010-06-16 |
| CN101737651B true CN101737651B (en) | 2011-12-14 |
Family
ID=42461515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101894227A Active CN101737651B (en) | 2009-12-24 | 2009-12-24 | LED (Light Emitting Diode) lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101737651B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537673B (en) * | 2010-12-30 | 2013-12-11 | 海洋王照明科技股份有限公司 | Portable lamp and radiating shell structure thereof |
| CN102162606B (en) * | 2011-02-25 | 2013-08-21 | 宁波贝克照明电器有限公司 | LED (light-emitting diode) tri-proof lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000195332A (en) * | 1998-12-25 | 2000-07-14 | Eye Lighting Syst Corp | Luminaire |
| JP2006058485A (en) * | 2004-08-18 | 2006-03-02 | Sony Corp | Heat dissipator and display device |
| CN201212633Y (en) * | 2008-06-04 | 2009-03-25 | 丽鸿科技股份有限公司 | LED illuminating lamp structure |
| CN101509613A (en) * | 2009-03-21 | 2009-08-19 | 陈鸿蛟 | High-power LED bulb |
| CN201344388Y (en) * | 2008-12-25 | 2009-11-11 | 陈鸿蛟 | LED bulb |
-
2009
- 2009-12-24 CN CN2009101894227A patent/CN101737651B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000195332A (en) * | 1998-12-25 | 2000-07-14 | Eye Lighting Syst Corp | Luminaire |
| JP2006058485A (en) * | 2004-08-18 | 2006-03-02 | Sony Corp | Heat dissipator and display device |
| CN201212633Y (en) * | 2008-06-04 | 2009-03-25 | 丽鸿科技股份有限公司 | LED illuminating lamp structure |
| CN201344388Y (en) * | 2008-12-25 | 2009-11-11 | 陈鸿蛟 | LED bulb |
| CN101509613A (en) * | 2009-03-21 | 2009-08-19 | 陈鸿蛟 | High-power LED bulb |
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| Publication number | Publication date |
|---|---|
| CN101737651A (en) | 2010-06-16 |
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