CN102392945B - LED lamp with small surface opening rate - Google Patents
LED lamp with small surface opening rate Download PDFInfo
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- CN102392945B CN102392945B CN201110342818.8A CN201110342818A CN102392945B CN 102392945 B CN102392945 B CN 102392945B CN 201110342818 A CN201110342818 A CN 201110342818A CN 102392945 B CN102392945 B CN 102392945B
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- led light
- percent opening
- light fixture
- little
- radiator
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Abstract
The invention discloses an LED lamp which can meet safety certificate and has the advantages of high safety and small surface opening rate. The LED lamp comprises a radiator (1), a driving circuit board component (3) and an LED light source component (6). Wherein the LED light source component (6) comprises a plurality of LED chips and LED heat-radiating basal plates, the LED lamp with small surface opening rate also comprises a ventilation hood (100), the exposure part of the radiator (1) is coated by the ventilation hood (100), a plurality of ventilation holes (101) are arranged on the ventilation hood (100), and the surface opening rate of the LED lamp is controlled by the opening rate of the ventilation hood (100). The LED lamp with small surface opening rate can be applied to field of the LED lamp.
Description
Technical field
The present invention relates to a kind of LED light fixture, relate in particular to the LED light fixture that a kind of surperficial percent opening is little.
Background technology
LED has that luminous efficiency is high, power saving and the advantage such as the life-span is long, and its application is more and more extensive.LED is applied to normal lighting, in order to reach illumination requirement, generally power-type LED to be concentrated on a light fixture and use, therefore the heat radiation of LED becomes affects LED light fixture use state and a key factor in life-span, especially for high-power LED lamp, heat dissipation problem has become a technical bottleneck that affects its extensive use.At present LED light fixture generally adopts radiator to dispel the heat, and in order to improve radiating effect, need to increase area of dissipation as far as possible, and radiator generally all exposes, and can directly touch the radiator portion of radiator from appearance.In order further to improve radiating effect, often made open structure, the parts such as the fin of radiator expose,---area of perforate part in the projected area of annular surface and ratio of the projected area of annular surface---is very high to cause its surperficial percent opening, there is the potential potential safety hazard that touches or approach electric component in radiator from surface, therefore the surperficial percent opening restricted property requirement of the authentication of the UL of the U.S. to LED light fixture, current exposed structure is difficult to meet the requirement of above-mentioned effects on surface percent opening, and high its waterproof that causes of surperficial percent opening, dust-proof effect is poor, limited its application out of doors and under particular surroundings.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, provides a kind of and can meet Safety Approval, the safe little LED light fixture of surperficial percent opening.
The technical solution adopted in the present invention is: the present invention includes radiator, drive circuit board component, LED light source assembly, described LED light source assembly comprises several LED chips and LED heat-radiating substrate, the LED light fixture that described surperficial percent opening is little also comprises ventilator cowling, described ventilator cowling is by the exposed parts ladle cover of described radiator, described ventilator cowling is provided with several air vents, by the surperficial percent opening of LED light fixture described in the percent opening control of described ventilator cowling.
The LED light fixture that described surperficial percent opening is little also comprises radiator fan, wind scooper, power pack upper cover, power pack lower cover, top cover, described radiator comprises base plate, the bottom surface of described base plate is plane, the end face of described base plate is provided with radiating part, the central area of described radiating part is provided with the space region for accommodating described radiator fan, described LED heat-radiating substrate conducts heat to described radiator heat-dissipation, described power pack lower cover is positioned at described radiator fan top and is fixedly connected with described radiator, described power pack upper cover be tightly connected mutually with described power pack lower cover and by described drive circuit board component ladle cover in interior, described wind scooper is by described radiator fan, described power pack upper cover, the top ladle cover of described power pack lower cover and described radiator is in cavity, the upper portion side wall of described wind scooper is provided with several gas ports, described top cover and described wind scooper be fixedly connected and in side by described gas port ladle cover, described gas port communicates with the external world by the opening of the bottom periphery of described top cover.
The top of described ventilator cowling is provided with annular connecting portion, described in several, air vent is positioned on the sidewall of described ventilator cowling, described wind scooper is stepped, described gas port is positioned at the top of ladder, described ventilator cowling ladle cover is in the lower, outer perimeter of the ladder of described wind scooper, and described ventilator cowling is fixed on the ladder position of described wind scooper by described annular connecting portion.
Or, the one-body molded entirety that becomes of described ventilator cowling and described wind scooper.
Between described LED heat-radiating substrate and described base plate, be provided with synthetic mica sheet, the outer rim of described synthetic mica sheet exceeds the edge 1～10mm of described LED heat-radiating substrate.
The LED light fixture that described surperficial percent opening is little also comprises and is connected and fixed assembly, the described assembly that is connected and fixed comprises upper connector, lower connector, intermediate connector, described upper connector is connected with indoor roof member, described lower connector and described top cover are fixedly connected, and described intermediate connector is connected with described upper connector, described lower connector respectively by screw thread.
Described radiator fan is dustproof and waterproof fan; Between described power pack upper cover and described power pack lower cover, connecting sewing place scribbles waterproof gasket cement; Described radiating part in the form of sheets or pin column.
The LED light fixture that described surperficial percent opening is little also comprises light permeable protection, lampshade, and the bottom of described light permeable protection, described lampshade and described radiator is fixedly connected and by described LED light source assembly ladle cover.
The bottom outer rim of described light permeable protection covers the bottom margin of described lampshade; and by bolt, described light permeable protection, described lampshade are connected with described radiator, the bottom outer rim of described light permeable protection and the seam crossing of described radiator scribble waterproof gasket cement.
The LED light fixture that described surperficial percent opening is little also comprises reflecting component, and described reflecting component is positioned at the luminous front of described LED light source assembly, and described reflecting component comprises the reflective surface that several are corresponding with described LED chip.
The invention has the beneficial effects as follows: owing to the present invention includes ventilator cowling, described ventilator cowling is by the exposed parts ladle cover of described radiator, described ventilator cowling is provided with several air vents, by the surperficial percent opening of LED light fixture described in the percent opening control of described ventilator cowling, the present invention is not affecting on the basis of original radiator heat-dissipation performance, by described ventilator cowling by the exposed parts ladle cover of described radiator, and by the surperficial percent opening of LED light fixture described in the percent opening control of described ventilator cowling, both the needs of heat radiation had been met, again can control surface percent opening, therefore the present invention can meet Safety Approval, safe, surface percent opening is little,
Owing to being provided with synthetic mica sheet between LED heat-radiating substrate of the present invention and described base plate, the outer rim of described synthetic mica sheet exceeds the edge 1～10mm of described LED heat-radiating substrate, synthetic mica sheet is to adopt MICA raw material to cause mica paper, then be equipped with adhesive and suppress through HTHP the slab insulant forming, there is excellent thermal conductivity, anti-flammability and electrical insulating property, there is even thickness, size can regulate arbitrarily, the advantages such as pliability and processability are good, its thermal conductivity factor is 5W/ (mK)～24W/ (mK), thermal conductivity factor than heat-conducting silicone grease and heat conductive insulating cloth is high, and mica sheet is the fixing state of shape, its average uniformity is high, therefore more closely knit evenly with contacting of described LED heat-radiating substrate and described base plate, therefore heat conduction and insulating properties are better, and simple installation, efficiency is high, by the edge of described synthetic mica sheet, exceed the edge 1～10mm of described LED heat-radiating substrate, make can meet the requirement of relevant safety for creep age distance between described LED heat-radiating substrate and described radiator, improve security therefore the present invention can meet Safety Approval, safe.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention;
Fig. 2 is the blast structural representation of the embodiment of the present invention;
Fig. 3 is the section structure schematic diagram of the embodiment of the present invention;
Fig. 4 is the perspective view of the ventilator cowling of the embodiment of the present invention.
The specific embodiment
As shown in Figure 1 to 4, the little LED light fixture of surperficial percent opening of the present embodiment is a kind of bulkhead lamp capable, comprise radiator 1, radiator fan 2, drive circuit board component 3, power pack upper cover 31, power pack lower cover 32, wind scooper 4, top cover 5, LED light source assembly 6, ventilator cowling 100, be connected and fixed assembly, light permeable protection 7, reflecting component 8, lampshade 9, described LED light source assembly 6 comprises several LED chips and LED heat-radiating substrate, described radiator 1 comprises base plate 11, the bottom surface of described base plate 11 is plane, the end face of described base plate 11 is provided with radiating part 12, be positioned at the described radiating part 12 of periphery in the form of sheets, along described base plate 11 arranged radiallys, form air channel, the described radiating part 12 that is positioned at center is pin column and forms crisscross air communication channel, therefore good heat dissipation effect, the central area of described radiating part 12 is provided with the space region for accommodating described radiator fan 2, described LED heat-radiating substrate conducts heat to described radiator 1 and dispels the heat, described radiator fan 2 is dustproof and waterproof fans, between described LED heat-radiating substrate and described base plate 11, be provided with synthetic mica sheet 10, the outer rim of described synthetic mica sheet 10 exceeds the edge 1～10mm of described LED heat-radiating substrate, to meet the requirement of safety for creep age distance, described ventilator cowling 100 is by the exposed parts ladle cover of described radiator 1, described ventilator cowling 100 is provided with several air vents 101, the top of described ventilator cowling 100 is provided with annular connecting portion 102, described in several, air vent 101 is positioned on the sidewall of described ventilator cowling 100, by the surperficial percent opening of LED light fixture described in the percent opening control of described ventilator cowling 100, to meet the requirement of safety for surperficial percent opening, in the present embodiment, on middle part 1/3rd place's ring surfaces of the sidewall of described ventilator cowling 100, offer the described air vent 101 of its area 40%, therefore the total percent opening of described ventilator cowling 100 is 0.333 × 0.4 ≈ 13.3% < 15%, met the requirement of UL authentication, described reflecting component 8 is positioned at the luminous front of described LED light source assembly 6, described reflecting component 8 comprises the reflective surface that several are corresponding with described LED chip, described power pack lower cover 32 is positioned at described radiator fan 2 tops and is fixedly connected with described radiator 1, described power pack upper cover 31 be tightly connected mutually with described power pack lower cover 32 and by described drive circuit board component 3 ladle covers in interior, between described power pack upper cover 31 and described power pack lower cover 32, connecting sewing place scribbles waterproof gasket cement, described drive circuit board component 3 is sealed with described power pack lower cover 32 by described power pack upper cover 31, reach the effect of water proof dust-separation, between described power pack upper cover 31 and described power pack lower cover 32 and between described top cover 5 and described wind scooper 4, by screw, be connected respectively, described wind scooper 4 is by described radiator fan 3, described power pack upper cover 31, the top ladle cover of described power pack lower cover 32 and described radiator 1 is in cavity, the upper portion side wall of described wind scooper 4 is provided with several gas ports 41, described top cover 5 be fixedly connected with described wind scooper 4 and in side by described gas port 41 ladle covers, described gas port 41 communicates with the external world by the opening of the bottom periphery of described top cover 5, be conducive to mobile air to carry out water conservancy diversion, increased mobile path, heat dispersion is better, described wind scooper 4 is stepped, described gas port 41 is positioned at the top of ladder, described ventilator cowling 100 ladle covers are in the lower, outer perimeter of the ladder of described wind scooper 4, described ventilator cowling 100 is fixed on the ladder position of described wind scooper 4 by described annular connecting portion 102, the described assembly that is connected and fixed comprises upper connector 51, lower connector 52, intermediate connector 53, described upper connector 51 is connected with indoor roof member, described lower connector 52 is fixedly connected with described top cover 5, and described intermediate connector 53 is connected with described upper connector 51, described lower connector 52 respectively by screw thread, described light permeable protection 7, described lampshade 9 is fixedly connected with the bottom of described radiator 1 and by described LED light source assembly 6 ladle covers, the bottom outer rim of described light permeable protection 7 covers the bottom margin of described lampshade 9, and by bolt, described light permeable protection 7, described lampshade 9 are connected with described radiator 1, the bottom outer rim of described light permeable protection 7 and the seam crossing of described radiator 1 scribble waterproof gasket cement, to protect the waterproof and dustproof of the described LED light source assembly 6 in described light permeable protection 7.
In the present embodiment, described ventilator cowling 100 links together as the member of two difference in functionalitys with described wind scooper 4, certainly, described ventilator cowling 100 also can with the one-body molded entirety that becomes of described wind scooper 4, there is the surperficial percent opening of minimizing and increase by two kinds of functions of flow path and the technique effect of heat dissipation wind channel.
In the present embodiment, the sealing of the power unit water proof and dust proof of whole light fixture is isolated, prevents that winged insect etc. from entering power unit, can, for places such as the workshop of outdoor and many dirt, factory buildings, be suitable for outdoor use, effectively waterproof and dustproof; By by described radiator fan 2 and described radiator 1 combination, make light fixture there is the effect that active heat removal and passive heat radiation combine, its radiating effect excellence, can effectively improve stability and the service life of light fixture, therefore heat radiation of the present invention, dustproof and waterproof effect are good, and the bulkhead lamp capable that can be used as indoor or outdoors is used.
In the present embodiment, under the effect of described radiator fan 2, outside air enters in the cavity of described wind scooper 4 by described gas port 41, and flow between described radiating part 12, from the space, bottom of described radiator 1, the described air vent 101 of described ventilator cowling 100, flow out to outside air successively, by the forced circulation of described radiator fan 2, flow, take away the heat on described radiator 1, radiating effect excellence, can avoid LED chip at high temperature to work, and effectively increases the service life; Due to the existence of forced heat radiation, therefore comparable common light fixture reduces the volume and weight of described radiator 1, has increased the adaptability of light fixture.
The present invention can be widely used in LED lighting field.
Claims (10)
1. the LED light fixture that surperficial percent opening is little, comprise radiator (1), drive circuit board component (3), LED light source assembly (6), described LED light source assembly (6) comprises several LED chips and LED heat-radiating substrate, it is characterized in that: the LED light fixture that described surperficial percent opening is little also comprises ventilator cowling (100), described ventilator cowling (100) is by the exposed parts ladle cover of described radiator (1), described ventilator cowling (100) is provided with several air vents (101), by the surperficial percent opening of LED light fixture described in the percent opening control of described ventilator cowling (100), on middle part 1/3rd place's ring surfaces of the sidewall of described ventilator cowling (100), offer the described air vent (101) of its area 40%, the percent opening < 15% that described ventilator cowling (100) is total.
2. the little LED light fixture of surperficial percent opening according to claim 1, it is characterized in that: the LED light fixture that described surperficial percent opening is little also comprises radiator fan (2), wind scooper (4), power pack upper cover (31), power pack lower cover (32), top cover (5), described radiator (1) comprises base plate (11), the bottom surface of described base plate (11) is plane, the end face of described base plate (11) is provided with radiating part (12), the central area of described radiating part (12) is provided with the space region for accommodating described radiator fan (2), described LED heat-radiating substrate conducts heat to described radiator (1) heat radiation, described power pack lower cover (32) is positioned at described radiator fan (2) top and is fixedly connected with described radiator (1), described power pack upper cover (31) be tightly connected mutually with described power pack lower cover (32) and by described drive circuit board component (3) ladle cover in interior, described wind scooper (4) is by described radiator fan (3), described power pack upper cover (31), the top ladle cover of described power pack lower cover (32) and described radiator (1) is in cavity, the upper portion side wall of described wind scooper (4) is provided with several gas ports (41), described top cover (5) and described wind scooper (4) be fixedly connected and in side by described gas port (41) ladle cover, described gas port (41) communicates with the external world by the opening of the bottom periphery of described top cover (5).
3. the little LED light fixture of surperficial percent opening according to claim 2, it is characterized in that: the top of described ventilator cowling (100) is provided with annular connecting portion (102), air vent described in several (101) is positioned on the sidewall of described ventilator cowling (100), described wind scooper (4) is stepped, described gas port (41) is positioned at the top of ladder, described ventilator cowling (100) ladle cover is in the lower, outer perimeter of the ladder of described wind scooper (4), and described ventilator cowling (100) is fixed on the ladder position of described wind scooper (4) by described annular connecting portion (102).
4. the little LED light fixture of surperficial percent opening according to claim 2, is characterized in that: described ventilator cowling (100) and the one-body molded entirety that becomes of described wind scooper (4).
5. the little LED light fixture of surperficial percent opening according to claim 2, it is characterized in that: between described LED heat-radiating substrate and described base plate (11), be provided with synthetic mica sheet (10), the outer rim of described synthetic mica sheet (10) exceeds the edge 1～10mm of described LED heat-radiating substrate.
6. the little LED light fixture of surperficial percent opening according to claim 2, it is characterized in that: the LED light fixture that described surperficial percent opening is little also comprises and is connected and fixed assembly, the described assembly that is connected and fixed comprises upper connector (51), lower connector (52), intermediate connector (53), described upper connector (51) is connected with indoor roof member, described lower connector (52) is fixedly connected with described top cover (5), and described intermediate connector (53) is connected with described upper connector (51), described lower connector (52) respectively by screw thread.
7. the little LED light fixture of surperficial percent opening according to claim 2, is characterized in that: described radiator fan (2) is dustproof and waterproof fan; Between described power pack upper cover (31) and described power pack lower cover (32), connecting sewing place scribbles waterproof gasket cement; Described radiating part (12) in the form of sheets or pin column.
8. the little LED light fixture of surperficial percent opening according to claim 1; it is characterized in that: the LED light fixture that described surperficial percent opening is little also comprises light permeable protection (7), lampshade (9), described light permeable protection (7), described lampshade (9) are fixedly connected with the bottom of described radiator (1) and by described LED light source assembly (6) ladle cover.
9. the little LED light fixture of surperficial percent opening according to claim 8; it is characterized in that: the bottom outer rim of described light permeable protection (7) covers the bottom margin of described lampshade (9); and by bolt, described light permeable protection (7), described lampshade (9) are connected with described radiator (1), the seam crossing of the bottom outer rim of described light permeable protection (7) and described radiator (1) scribbles waterproof gasket cement.
10. the little LED light fixture of surperficial percent opening according to claim 1, it is characterized in that: the LED light fixture that described surperficial percent opening is little also comprises reflecting component (8), described reflecting component (8) is positioned at the luminous front of described LED light source assembly (6), and described reflecting component (8) comprises the reflective surface that several are corresponding with described LED chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342818.8A CN102392945B (en) | 2011-11-03 | 2011-11-03 | LED lamp with small surface opening rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110342818.8A CN102392945B (en) | 2011-11-03 | 2011-11-03 | LED lamp with small surface opening rate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392945A CN102392945A (en) | 2012-03-28 |
| CN102392945B true CN102392945B (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110342818.8A Expired - Fee Related CN102392945B (en) | 2011-11-03 | 2011-11-03 | LED lamp with small surface opening rate |
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| CN (1) | CN102392945B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720963A (en) * | 2012-05-31 | 2012-10-10 | 郭允飞 | LED lamp |
| CN102818171B (en) * | 2012-07-23 | 2015-04-15 | 贵州光浦森光电有限公司 | LED (light-emitting diode) lawn lamp using support composite member as mounting interface |
| CN104819416A (en) * | 2014-06-05 | 2015-08-05 | 聂金芳 | Energy-saving LED surface light source supermarket lamp |
| CN104197256A (en) * | 2014-09-17 | 2014-12-10 | 苏州红壹佰照明有限公司 | Hollow convection heat dissipation type LED (light emitting diode) ceiling-mounted lamp |
| CN105805565A (en) * | 2016-02-02 | 2016-07-27 | 广州南科集成电子有限公司 | LED light power supply assembly and LED lamp |
| CN107940301A (en) * | 2017-11-09 | 2018-04-20 | 江西雅斯利照明有限公司 | A kind of LED light for promoting aquatic plants growth |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858505A (en) * | 2009-04-13 | 2010-10-13 | 富准精密工业(深圳)有限公司 | Light-emitting diode (LED) lamp |
| CN102155699A (en) * | 2011-05-18 | 2011-08-17 | 广州南科集成电子有限公司 | Waterproof and dustproof LED lamp |
| CN202327705U (en) | 2011-11-03 | 2012-07-11 | 广州南科集成电子有限公司 | LED lamp with small surface opening rate |
-
2011
- 2011-11-03 CN CN201110342818.8A patent/CN102392945B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858505A (en) * | 2009-04-13 | 2010-10-13 | 富准精密工业(深圳)有限公司 | Light-emitting diode (LED) lamp |
| CN102155699A (en) * | 2011-05-18 | 2011-08-17 | 广州南科集成电子有限公司 | Waterproof and dustproof LED lamp |
| CN202327705U (en) | 2011-11-03 | 2012-07-11 | 广州南科集成电子有限公司 | LED lamp with small surface opening rate |
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| CN102392945A (en) | 2012-03-28 |
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