CN101387390B - Lamp heat radiating device and LED lamp - Google Patents
Lamp heat radiating device and LED lamp Download PDFInfo
- Publication number
- CN101387390B CN101387390B CN2008102186832A CN200810218683A CN101387390B CN 101387390 B CN101387390 B CN 101387390B CN 2008102186832 A CN2008102186832 A CN 2008102186832A CN 200810218683 A CN200810218683 A CN 200810218683A CN 101387390 B CN101387390 B CN 101387390B
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- Prior art keywords
- heat
- radiating
- described heat
- radiating substrate
- led light
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- 239000000758 substrate Substances 0.000 claims description 70
- 230000005855 radiation Effects 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000004568 cement Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
Landscapes
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lamp radiating device with excellent radiating effect and an LED lamp comprising the lamp radiating device. The LED lamp comprises an LED light source component (2); a light transmission protecting cover (3) and a lamp radiating device, wherein the LED light source component (2) comprises a plurality of LEDs (21) and a radiating circuit bottom plate (22); the lamp radiating device comprises a radiating baseplate (1); the back of the radiating baseplate (1) is provided with a plurality of radiating rods (11); the LED light source component (2) is fixedly connected with the radiating baseplate (1) and conducts heat to the radiating baseplate (1) through the radiating circuit bottom plate (22); and the light transmission protecting cover (3) is in seal connection with the radiating baseplate (1). The lamp radiating device can be widely applied in the lamp field.
Description
Technical field
The present invention relates to a kind of lamp heat-radiating device and comprise the LED light fixture of this lamp heat-radiating device.
Background technology
LED is applied in various occasions as a kind of novel illumination light source just more and more widely with outstanding advantages such as its energy-saving and environmental protection, luminous efficiency height, life-span length.Adopt high-power LED light source to be applied in and can be used as large-scale light fixture use such as street lamp, wall lamp in the light fixture now.But great power LED produces a large amount of heats when work, if untimely distributing then can make LED owing to high temperature suffers damage, influence service life, therefore needs good heat radiation.Be illustrated in figure 1 as a kind of existing lamp heat-radiating device, it comprises heat-radiating substrate 1 and is positioned at fin 10 on the heat-radiating substrate 1.Existing light fixture generally adopts the fin heat radiation, but because the space between the fin is parallel arrangement, if there is wind to blow from the direction perpendicular to fin, then circulation of air has some setbacks in the space between the fin, and promptly Wai Jie moving air is bad to the effect of the forced heat radiation of light fixture.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and a kind of lamp radiating device with excellent radiating effect is provided.
In addition, the present invention also provides a kind of LED light fixture of radiating effect excellence.
The technical scheme that lamp heat-radiating device of the present invention adopted is: described lamp heat-radiating device comprises heat-radiating substrate, and the back side of described heat-radiating substrate is provided with several heat-radiating rod.
Described heat-radiating rod is arranged in array.
Be equally spaced between each adjacent described heat-radiating rod.
The rectangular array arrangement of described heat-radiating rod or the array arrangement that assumes diamond in shape.
The technical scheme that LED light fixture of the present invention is adopted is: described LED light fixture comprises led light source assembly, light permeable protection; described led light source assembly comprises several LED and heat radiation circuit substrate; described LED light fixture also comprises lamp heat-radiating device; described lamp heat-radiating device comprises heat-radiating substrate; the back side of described heat-radiating substrate is provided with several heat-radiating rod; described led light source assembly and described heat-radiating substrate are fixedly connected and conduct heat to described heat-radiating substrate by described heat radiation circuit substrate, and described light permeable protection is tightly connected mutually with described heat-radiating substrate.
Described heat-radiating rod is arranged in array.
Be equally spaced between each adjacent described heat-radiating rod.
The rectangular array arrangement of described heat-radiating rod or the array arrangement that assumes diamond in shape.
Described LED light fixture also comprises driven unit; described driven unit comprises constant current constant voltage device and heat radiation drive circuit base plate; described driven unit is positioned at the confined space that described light permeable protection and described heat-radiating substrate form, described heat radiation drive circuit base plate and the described heat-radiating substrate heat loss through conduction that is fixedly connected.
Described LED light fixture also comprises the power protection box; described power protection box is fixedly connected by screw and described heat-radiating substrate; described power protection box seals with described heat-radiating substrate mutually by the sealing ring in the groove that is embedded into described heat-radiating substrate bottom; be provided with power conversion component in the described power protection box; the input power cord of described power conversion component is drawn and is sealed from described power protection box by the sealing ply-yarn drill; described heat-radiating substrate is provided with the projection in band line hole; the out-put supply line of described power conversion component passes the line hole of described projection and is electrically connected with described constant current constant voltage device, and the out-put supply line of described power conversion component and place, the line hole of described projection are provided with waterproof gasket cement.
The peripheral part of described heat-radiating substrate is provided with circular protrusion; described circular protrusion is provided with cannelure; lay sealing strip in the described cannelure and the sealing that matches with described light permeable protection; the described circular protrusion of described light permeable protection and described heat-radiating substrate is fixedly connected by several bolts, also is provided with the decoration pressure ring between described bolt and the described light permeable protection.
Described LED light fixture also comprises reflection shield, lamp installation portion, and described reflection shield is fixedly set in the confined space that described light permeable protection and described heat-radiating substrate form, and described lamp installation portion is positioned at the back side of described heat-radiating substrate.
The invention has the beneficial effects as follows: because the back side of the described heat-radiating substrate of lamp heat-radiating device of the present invention is provided with several heat-radiating rod, the more traditional fin of the area of dissipation of described heat-radiating rod is bigger, space between each described heat-radiating rod also therefore and crisscross, make no matter wind from which direction blows, air in the space between each described heat-radiating rod can circulate swimmingly and be not interrupted, i.e. Wai Jie moving air effective to the forced heat radiation of light fixture, this is for the street lamp of using out of doors, the heat radiation of large-scale light fixture such as wall lamp is even more important, so the radiating effect excellence of lamp heat-radiating device of the present invention and LED light fixture.
Description of drawings
Fig. 1 is a kind of structural representation of existing lamp heat-radiating device;
Fig. 2 is the structural representation of the lamp heat-radiating device of the embodiment of the invention two;
Fig. 3 is the structural representation of the lamp heat-radiating device of the embodiment of the invention one;
Fig. 4 is the structure schematic diagram of the LED light fixture of the embodiment of the invention one;
Fig. 5 is the A-A section structure schematic diagram of LED light fixture shown in Figure 4;
Fig. 6 is the B-B section structure schematic diagram of LED light fixture shown in Figure 4;
Fig. 7 is the local structure for amplifying schematic diagram in the I place of LED light fixture shown in Figure 5;
Fig. 8 is the local structure for amplifying schematic diagram in the II place of LED light fixture shown in Figure 6.
The specific embodiment
Embodiment one:
As Fig. 3～shown in Figure 8; the LED light fixture of present embodiment comprises led light source assembly 2; light permeable protection 3; reflection shield 4; driven unit 7; power protection box 9; lamp heat-radiating device; described led light source assembly 2 comprises several LED21 and heat radiation circuit substrate 22; described lamp heat-radiating device comprises heat-radiating substrate 1; described led light source assembly 2 is fixedly connected with described heat-radiating substrate 1 and conducts heat to described heat-radiating substrate 1 by described heat radiation circuit substrate 22; described light permeable protection 3 is tightly connected mutually with described heat-radiating substrate 1; the back side of described heat-radiating substrate 1 is provided with 658 heat-radiating rod 11 and two lamp installation portions 12 that are handle-shaped; be equally spaced between each adjacent described heat-radiating rod 11; the described heat-radiating rod 11 integral body array arrangement that assumes diamond in shape; be that described heat-radiating rod 11 can be regarded as with the rhombus be the elementary cell continuous distributed; and be the center with each described heat-radiating rod 11; the described heat-radiating rod 11 nearest with it has six and can see as and be cellular distribution; described heat-radiating rod 11 has 28 row; wherein the every row of 14 row has 24; other 14 row have 23 with its every alternately row; the thickness of described heat-radiating substrate 1 is 5mm; the diameter of described heat-radiating rod 11 is φ 5mm; the height of described heat-radiating rod 11 is 60mm; centre-to-centre spacing between each described heat-radiating rod 11 is d1=11.5mm; the peripheral part of described heat-radiating substrate 1 is provided with circular protrusion 10; described circular protrusion 10 is provided with cannelure 18; lay sealing strip 6 in the described cannelure 18 and the sealing that matches with described light permeable protection 3; described light permeable protection 3 is fixedly connected by several bolts 5 with the described circular protrusion 10 of described heat-radiating substrate 1; also be provided with between described bolt 5 and the described light permeable protection 3 and decorate pressure ring 8; described reflection shield 4 and described driven unit 7 are fixedly set in the confined space of described light permeable protection 3 and 1 formation of described heat-radiating substrate; described light permeable protection 3 adopts glass to make; can certainly adopt plastics to make; described heat-radiating substrate 1 adopts aluminium to make; can certainly adopt aluminium alloy or copper or copper alloy to make; described heat-radiating rod 11 and described heat-radiating substrate 1 one-body molded manufacturing; described driven unit 7 comprises constant current constant voltage device 71 and heat radiation drive circuit base plate 72; described driven unit 7 is positioned at the confined space of described light permeable protection 3 and 1 formation of described heat-radiating substrate; described heat radiation drive circuit base plate 72 and described heat-radiating substrate 1 heat loss through conduction that is fixedly connected; described power protection box 9 is fixedly connected by screw 13 and described heat-radiating substrate 1; described power protection box 9 seals with described heat-radiating substrate 1 mutually by the sealing ring 61 in the groove that is embedded into described heat-radiating substrate 1 bottom; be provided with power conversion component 91 in the described power protection box 9; be used for converting alternating current to direct current; the input power cord of described power conversion component 91 is drawn and is sealed from described power protection box 9 by sealing ply-yarn drill 92; described heat-radiating substrate 1 is provided with the projection 17 in band line hole; the out-put supply line of described power conversion component 91 passes the line hole of described projection 17 and is electrically connected with described constant current constant voltage device 71; the out-put supply line of described power conversion component 91 and place, the line hole of described projection 17 are provided with waterproof gasket cement 19; LED light fixture of the present invention has guaranteed described power protection box 9 and described light permeable protection 3 and the interior water-tight performance of confined space that described heat-radiating substrate 1 forms, and is suitable for outdoor use.
Because the back side of the described heat-radiating substrate 1 of lamp heat-radiating device of the present invention is provided with several heat-radiating rod 11, the more traditional fin of the area of dissipation of described heat-radiating rod 11 is bigger, space between each described heat-radiating rod 11 also therefore and crisscross, make no matter wind from which direction blows, air in the space between each described heat-radiating rod 11 can circulate swimmingly and be not interrupted, i.e. Wai Jie moving air effective to the forced heat radiation of light fixture, this heat radiation for large-scale light fixtures such as street lamp of using out of doors, wall lamps is even more important.Through contrast test, under the equivalent environment temperature, the light fixture of same size relies on the heat-radiating substrate heat radiation separately under the situation that fin and heat-radiating rod are not set, and the work equilibrium temperature of its heat-radiating substrate is above 100 ℃; Be provided with under the situation of fin, the work equilibrium temperature of its heat-radiating substrate is above 70 ℃; And be provided with under the situation of heat-radiating rod, the work equilibrium temperature of its heat-radiating substrate is lower than 60 ℃, adopts its work equilibrium temperature of heat-radiating rod distribution mode of present embodiment to be lower than 50 ℃ especially.As seen, the radiating effect excellence of lamp heat-radiating device of the present invention and LED light fixture.
Through test, radiating effect at the lamp heat-radiating device of following parameter area is best: the thickness of described heat-radiating substrate 1 is 3～8mm, the diameter of described heat-radiating rod 11 is φ 2～φ 8mm, and the height of described heat-radiating rod 11 is 10～200mm, and the centre-to-centre spacing between each described heat-radiating rod 11 is 5～18mm.
Embodiment two:
As shown in Figure 2, the difference part of present embodiment and embodiment one is: described heat-radiating rod 11 rectangular array arrangements, the back side of described heat-radiating substrate 1 is provided with 576 and is 24 * 24 rectangular arrays heat-radiating rod 11 of arranging, centre-to-centre spacing between each described heat-radiating rod 11 is d2=11.5mm, and it is the elementary cell continuous distributed that promptly described heat-radiating rod 11 can be regarded as with the square.
Area of dissipation with embodiment one and embodiment two compares comparison below: among the embodiment one, described heat-radiating rod 11 occupies S1=a1 * b1=269.5 * 273.9=73816mm
2The area of the described heat-radiating substrate 1 of scope, described heat-radiating rod 11 total N1=24 * 14+23 * 14=658, its heat radiation is than k1=N1/S1=0.008914/mm
2=8914/m
2Among the embodiment two, described heat-radiating rod 11 occupies S2=a2 * b2=269.5 * 269.5=72630mm
2The area of the described heat-radiating substrate 1 of scope, described heat-radiating rod 11 total N2=24 * 24=576 are individual, and its heat radiation is than k2=N2/S2=0.007931/mm
2=7931/m
2The ratio k 1/k2=1.12 of two heat radiation ratios this shows, under the identical situation of other parameter, the distribution mode of its heat-radiating rod of scheme of employing embodiment one can also increase area of dissipation than embodiment two and reach 12%, so the radiating effect of embodiment one is better.
The present invention can be widely used in field of light fittings.
Claims (6)
1. lamp heat-radiating device, comprise heat-radiating substrate (1), it is characterized in that: the back side of described heat-radiating substrate (1) is provided with several heat-radiating rod (11), be equally spaced between the adjacent described heat-radiating rod (11), described heat-radiating rod (11) array arrangement that assumes diamond in shape, the thickness of described heat-radiating substrate (1) is 3～8mm, the diameter of described heat-radiating rod (11) is φ 2～φ 8mm, the height of described heat-radiating rod (11) is 10～200mm, centre-to-centre spacing between each described heat-radiating rod (11) is 5～18mm, described heat-radiating rod (11) and the one-body molded manufacturing of described heat-radiating substrate (1).
2. LED light fixture; comprise led light source assembly (2), light permeable protection (3); described led light source assembly (2) comprises several LED (21) and heat radiation circuit substrate (22); it is characterized in that: described LED light fixture also comprises the described lamp heat-radiating device of claim 1; described led light source assembly (2) is fixedly connected with described heat-radiating substrate (1) and conducts heat to described heat-radiating substrate (1) by described heat radiation circuit substrate (22), and described light permeable protection (3) is tightly connected mutually with described heat-radiating substrate (1).
3. LED light fixture according to claim 2; it is characterized in that: described LED light fixture also comprises driven unit (7); described driven unit (7) comprises constant current constant voltage device (71) and heat radiation drive circuit base plate (72); described driven unit (7) is positioned at the confined space that described light permeable protection (3) and described heat-radiating substrate (1) form, described heat radiation drive circuit base plate (72) and described heat-radiating substrate (1) heat loss through conduction that is fixedly connected.
4. LED light fixture according to claim 2; it is characterized in that: described LED light fixture also comprises power protection box (9); described power protection box (9) is fixedly connected by screw (13) and described heat-radiating substrate (1); described power protection box (9) seals with described heat-radiating substrate (1) mutually by the sealing ring (61) in the groove that is embedded into described heat-radiating substrate (1) bottom; be provided with power conversion component (91) in the described power protection box (9); the input power cord of described power conversion component (91) is drawn and is sealed from described power protection box (9) by sealing ply-yarn drill (92); described heat-radiating substrate (1) is provided with the projection (17) in band line hole; the out-put supply line of described power conversion component (91) passes the line hole of described projection (17) and is electrically connected with described constant current constant voltage device (71), and the place, line hole of the out-put supply line of described power conversion component (91) and described projection (17) is provided with waterproof gasket cement (19).
5. LED light fixture according to claim 2; it is characterized in that: the peripheral part of described heat-radiating substrate (1) is provided with circular protrusion (10); described circular protrusion (10) is provided with cannelure (18); lay sealing strip (6) in the described cannelure (18) and the sealing that matches with described light permeable protection (3); described light permeable protection (3) is fixedly connected by several bolts (5) with the described circular protrusion (10) of described heat-radiating substrate (1), also is provided with between described bolt (5) and the described light permeable protection (3) to decorate pressure ring (8).
6. LED light fixture according to claim 2; it is characterized in that: described LED light fixture also comprises reflection shield (4), lamp installation portion (12); described reflection shield (4) is fixedly set in the confined space of described light permeable protection (3) and described heat-radiating substrate (1) formation, and described lamp installation portion (12) is positioned at the back side of described heat-radiating substrate (1).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102186832A CN101387390B (en) | 2008-10-27 | 2008-10-27 | Lamp heat radiating device and LED lamp |
| US13/060,749 US8641245B2 (en) | 2008-08-25 | 2009-08-21 | Radiating device for lamp and LED lamp |
| PCT/CN2009/073428 WO2010022636A1 (en) | 2008-08-25 | 2009-08-21 | Radiating device for lamp and led lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102186832A CN101387390B (en) | 2008-10-27 | 2008-10-27 | Lamp heat radiating device and LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101387390A CN101387390A (en) | 2009-03-18 |
| CN101387390B true CN101387390B (en) | 2010-06-09 |
Family
ID=40476953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102186832A Expired - Fee Related CN101387390B (en) | 2008-08-25 | 2008-10-27 | Lamp heat radiating device and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101387390B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8641245B2 (en) | 2008-08-25 | 2014-02-04 | Nanker (Guangzhou) Semiconductor Manufacturing Corp. | Radiating device for lamp and LED lamp |
| CN102478191A (en) * | 2010-11-25 | 2012-05-30 | 西安博昱新能源有限公司 | LED lighting street lamp |
-
2008
- 2008-10-27 CN CN2008102186832A patent/CN101387390B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101387390A (en) | 2009-03-18 |
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Granted publication date: 20100609 Termination date: 20181027 |