CN101373061B - LED light fitting - Google Patents
LED light fitting Download PDFInfo
- Publication number
- CN101373061B CN101373061B CN2008100303615A CN200810030361A CN101373061B CN 101373061 B CN101373061 B CN 101373061B CN 2008100303615 A CN2008100303615 A CN 2008100303615A CN 200810030361 A CN200810030361 A CN 200810030361A CN 101373061 B CN101373061 B CN 101373061B
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- CN
- China
- Prior art keywords
- heat
- radiating
- radiating substrate
- led light
- described heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/80—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with pins or wires
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses an LED lamp with excellent radiation effect, and comprises a radiation base (1), an LED light source module (2), and a light penetrating protection cover (3). The LED light source module (2) comprises a plurality of LEDs (21) and circuit radiation under plates (22); the LED light source module (2) is fixedly connected with the radiation base (1) transmits heat to the radiation base (1) through the circuit radiation under plates (22); the light penetrating protection cover (3) and the radiation base (1) are hermetically connected; and a plurality of array-distributed radiation rods are arranged on the back of the radiation base (1). The invention can be widely applied in the lamp field.
Description
Technical field
The present invention relates to a kind of LED light fixture.
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.As shown in Figure 1, existing large-scale light fixture generally adopts the fin heat radiation, but because the space between the fin is parallel arrangement, if wind blows 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 LED light fixture of radiating effect excellence is provided.
The technical solution adopted in the present invention is: the present invention includes heat-radiating substrate, led light source assembly, light permeable protection; described led light source assembly comprises several LED and circuit radiating bottom plate; described led light source assembly and described heat-radiating substrate are fixedly connected and conduct heat to described heat-radiating substrate by described circuit radiating bottom plate; described light permeable protection is tightly connected mutually with described heat-radiating substrate, and the back side of described heat-radiating substrate is provided with several heat-radiating rod that is arranged in array.
Described heat-radiating rod is matrix array and arranges.
The back side of described heat-radiating substrate also is provided with lamp installation portion.
The peripheral part of described heat-radiating substrate is provided with circular protrusion, and described circular protrusion is provided with cannelure, lays 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 driven unit; described driven unit comprises constant current constant voltage device and drive circuit radiating bottom plate; described driven unit is positioned at the confined space that described light permeable protection and described heat-radiating substrate form, described drive circuit radiating bottom 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.
Described LED light fixture also comprises reflection shield, and described reflection shield is fixedly set in the confined space of described light permeable protection and the formation of described heat-radiating substrate.
Described light permeable protection adopts glass or plastics to make, and described heat-radiating substrate adopts aluminum or aluminum alloy or copper or copper alloy to make described heat-radiating rod and the one-body molded manufacturing of described heat-radiating substrate.
The thickness of described heat-radiating substrate is 3～8mm, and the diameter of described heat-radiating rod is φ 2～φ 8mm, and the height of described heat-radiating rod is 10～200mm, and the centre-to-centre spacing between each described heat-radiating rod is 5～18mm.
The invention has the beneficial effects as follows: because the back side of heat-radiating substrate of the present invention is provided with the heat-radiating rod that several are arranged in array, therefore and the crisscross array-like that is space between each described heat-radiating rod, its area of dissipation is bigger, no matter wind from which direction blows in addition, 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 heat radiation for large-scale light fixtures such as the street lamp of using out of doors, wall lamps is even more important, so radiating effect excellence of the present invention.
Description of drawings
Fig. 1 is a kind of structural representation of existing flange-cooled heat-radiating substrate;
Fig. 2 is a perspective view of the present invention;
Fig. 3 is a structure schematic diagram of the present invention;
Fig. 4 is the A-A section structure schematic diagram of LED light fixture shown in Figure 3;
Fig. 5 is the B-B section structure schematic diagram of LED light fixture shown in Figure 3;
Fig. 6 is the local structure for amplifying schematic diagram in the I place of LED light fixture shown in Figure 4;
Fig. 7 is the local structure for amplifying schematic diagram in the II place of LED light fixture shown in Figure 5.
The specific embodiment
As Fig. 2～shown in Figure 7; the LED light fixture of present embodiment comprises heat-radiating substrate 1; led light source assembly 2; light permeable protection 3; reflection shield 4; driven unit 7; power protection box 9; described led light source assembly 2 comprises several LED21 and circuit radiating bottom plate 22; 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 circuit radiating bottom plate 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 576 heat-radiating rod 11 and two lamp installation portions 12 that are handle-shaped; described heat-radiating rod 11 is 24 * 24 matrix arrays and arranges; the thickness of described heat-radiating substrate 1 is 5mm; the diameter of described heat-radiating rod 11 is φ 3mm; the height of described heat-radiating rod 11 is 60mm; centre-to-centre spacing between each described heat-radiating rod 11 is 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 drive circuit radiating bottom plate 72; described drive circuit radiating bottom 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 18; 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 heat-radiating substrate 1 of the present invention is provided with several heat-radiating rod that is arranged in array 11, therefore and the crisscross array-like that is space between each described heat-radiating rod 11, its area of dissipation is bigger, no matter wind from which direction blows in addition, 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 ℃.As seen, radiating effect excellence of the present invention.
Through test, radiating effect at the light fixture 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.
The present invention can be widely used in field of light fittings.
Claims (8)
1. LED light fixture; comprise heat-radiating substrate (1); led light source assembly (2); light permeable protection (3); described led light source assembly (2) comprises several LED (21) and circuit radiating bottom plate (22); 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 circuit radiating bottom plate (22); it is characterized in that: described light permeable protection (3) is tightly connected mutually with described heat-radiating substrate (1); 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); the back side of described heat-radiating substrate (1) is provided with several heat-radiating rod that is arranged in array (11); described heat-radiating rod (11) and the one-body molded manufacturing of described heat-radiating substrate (1); 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, and the centre-to-centre spacing between each described heat-radiating rod (11) is 5～18mm.
2. LED light fixture according to claim 1 is characterized in that: described heat-radiating rod (11) is matrix array and arranges.
3. LED light fixture according to claim 1 is characterized in that: the back side of described heat-radiating substrate (1) also is provided with lamp installation portion (12).
4. LED light fixture according to claim 1; it is characterized in that: 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) and decorates pressure ring (8).
5. LED light fixture according to claim 1; 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 drive circuit radiating bottom 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 drive circuit radiating bottom plate (72) and described heat-radiating substrate (1) heat loss through conduction that is fixedly connected.
6. LED light fixture according to claim 5; 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 (18).
7. LED light fixture according to claim 1 is characterized in that: described LED light fixture also comprises reflection shield (4), and described reflection shield (4) is fixedly set in the confined space of described light permeable protection (3) and described heat-radiating substrate (1) formation.
8. LED light fixture according to claim 1 is characterized in that: described light permeable protection (3) adopts glass or plastics to make, and described heat-radiating substrate (1) adopts aluminum or aluminum alloy or copper or copper alloy to make.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100303615A CN101373061B (en) | 2008-08-25 | 2008-08-25 | LED light fitting |
| PCT/CN2009/073428 WO2010022636A1 (en) | 2008-08-25 | 2009-08-21 | Radiating device for lamp and led lamp |
| US13/060,749 US8641245B2 (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 |
|---|---|---|---|
| CN2008100303615A CN101373061B (en) | 2008-08-25 | 2008-08-25 | LED light fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101373061A CN101373061A (en) | 2009-02-25 |
| CN101373061B true CN101373061B (en) | 2010-08-11 |
Family
ID=40447359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100303615A Expired - Fee Related CN101373061B (en) | 2008-08-25 | 2008-08-25 | LED light fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101373061B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013178222A1 (en) * | 2012-06-01 | 2013-12-05 | Sumolight Gmbh | Lighting device and headlight |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010022636A1 (en) * | 2008-08-25 | 2010-03-04 | 广州南科集成电子有限公司 | Radiating device for lamp and led lamp |
| CN101614334A (en) * | 2009-07-31 | 2009-12-30 | 上海宝康电子控制工程有限公司 | A kind of heat dissipation type LED device |
| CN102042505B (en) * | 2009-10-13 | 2013-04-10 | 良盟塑胶股份有限公司 | Illuminating device and manufacturing method thereof |
| CN102720963A (en) * | 2012-05-31 | 2012-10-10 | 郭允飞 | LED lamp |
| CN103277699A (en) * | 2013-06-19 | 2013-09-04 | 苏州信亚科技有限公司 | Novel LED panel light with modified heat dissipation for clean rooms |
| CN103398305B (en) * | 2013-07-25 | 2015-11-25 | 宁波市爱使电器有限公司 | The LED of a kind of high sealing height heat radiation |
| CN103453497B (en) * | 2013-08-23 | 2016-05-25 | 西安重装渭南光电科技有限公司 | A kind of LED lamp radiator and LED light source module thereof |
| CN109827112B (en) * | 2019-03-25 | 2024-06-28 | 湖州积微电子科技有限公司 | Module projecting lamp |
-
2008
- 2008-08-25 CN CN2008100303615A patent/CN101373061B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013178222A1 (en) * | 2012-06-01 | 2013-12-05 | Sumolight Gmbh | Lighting device and headlight |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101373061A (en) | 2009-02-25 |
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Granted publication date: 20100811 Termination date: 20200825 |