CN201066108Y

CN201066108Y - LED spotlight

Info

Publication number: CN201066108Y
Application number: CNU2007200662498U
Authority: CN
Inventors: 楼红献; 刘学勇
Original assignee: Ningbo Andy Optoelectronic Co Ltd
Current assignee: Ningbo Andy Optoelectronic Co Ltd
Priority date: 2007-01-10
Filing date: 2007-01-10
Publication date: 2008-05-28
Anticipated expiration: 2017-01-10

Abstract

The utility model discloses a LED spot light including a housing, a light outputting plate, a plurality of LEDs and a power supply device; wherein, the LEDs are accepted in the housing; the light outputting plate is fixed on the housing and seals the LEDs in the housing; the housing is also provided with a plurality of radiating ribs; the LEDs are electrically connected with the power supply device; the LEDs are arranged in an externally convex cambered surface shape in the housing towards the direction of the light outputting plate; the radiating ribs at least include a first radiating region formed by a plurality of first radiating ribs and a second radiating rib region formed by a plurality of second radiating ribs; a certain included angle Alpha is formed between a first clearance formed between any two neighboring radiating ribs in the first radiating rib region and a second clearance formed between any two neighboring radiating ribs in the second radiating rib region; wherein, the Alpha is larger than 0 degree but smaller than 180 degrees.

Description

The LED Projecting Lamp

[technical field]

The utility model relates to a kind of LED Projecting Lamp, or rather, relates to a kind of LED Projecting Lamp that has radiator structure and have better light projector effect.

[background technology]

LED has advantages such as environmental protection, energy-conservation, life-span be long and is regarded as the 21 century lighting source, but LED has specific lighting angle, can't be as conventional light source lighting angle big and even, so its application is subjected to certain restriction.See also shown in Figure 11, existing LED Projecting Lamp is installed in a plurality of LED93 elements on the planar circuit board 92 usually, because LED has specific lighting angle, the light 931 of the LED element emission of planar alignment penetrates with the direction on perpendicular circuit board plane basically, cause the hot spot L1 that forms in its place ahead less, the irradiating angle that is to say the LED Projecting Lamp is little, thereby has produced the problem that its light projector effect can't meet the demands in a lot of fields.Especially it is fashionable to be applied to illuminated fields such as billboard, in order in certain distance, to illuminate the billboard of specific region, thereby can only reach the irradiated area that increases light-emitting area increase LED Projecting Lamp by the volume of increase LED Projecting Lamp and the quantity of LED element usually, yet but cause the significantly increase of cost like this.Simultaneously, because in the LED Projecting Lamp, LED quantity is more or LED power is bigger, the heat that produces is more, and the luminous efficiency of LED reduces with the temperature rising, and in order to resolve heat dissipation problem, existing LED Projecting Lamp is provided with the strip fin of single direction usually at back side of shell, utilize fin to increase area of dissipation, thereby the heat that LED is produced lose.But, because the above-mentioned setting of fin, make when air flows perpendicular to the fin direction, air-flow is difficult for entering in the gap between the fin, thereby be unfavorable in described gap, forming air-flow, the heat of fin surface also can't dispel the heat rapidly with air current flow, so radiating effect is unsatisfactory.So, be necessary the fin of existing LED Projecting Lamp is improved, with further enhancing radiating effect.

[utility model content]

Technical problem to be solved in the utility model is to overcome above-mentioned defective, the LED Projecting Lamp that a kind of good heat dissipation effect, compact conformation is provided, cost is relatively low and has better light projector effect.

The utility model is achieved through the following technical solutions: a kind of LED Projecting Lamp, comprise housing, light-emitting plate, some LED and supply unit, wherein, described LED is contained in the described housing, described light-emitting plate is fixed on the housing and with LED and encloses in the housing, also be provided with some fin on the described housing, described LED and described supply unit electrically connect, described LED is the configuration of spirogyrate arc surfaced towards the light-emitting plate direction in described housing, described fin comprises first heat radiation section of being made up of some first fin and the second heat radiation section of being made up of some second fin at least, first gap and described second that forms between any two adjacent fin of described first heat radiation in the section α in a certain angle between second gap that forms between any two adjacent fin in the section that dispels the heat, wherein 0 °＜α＜180 °.

The central angle scope of described spirogyrate cambered surface be 10 spend to 100 the degree.

The diapire of described housing is provided with a curved base, and described LED is close to this curved base surface by circuit board and installs, and makes the LED on the circuit board be the configuration of spirogyrate arc surfaced along the curved base surface.

Described curved base is one-body molded and form by housing, and described housing is made by the good material of heat conductivility.

The independent moulding of described curved base, this element body is made by the good material of heat conductivility, and is connected with the conduction of described shell heat.

Described circuit board is made up of some strip circuit boards, after the LED on each strip circuit board is connected in series mutually again with adjacent strip circuit board on LED be connected in parallel.

Described curved base has at least one to be circular arc in two orthogonal cross sections.

Described α is 90 °.

The described first heat radiation section comprises two heat radiation subregions, and the second fin district is positioned between the described two heat radiation subregions.

At least one heat radiation section integral body is curved in the described first heat radiation section, the second heat radiation section, and the middle part of housing is the summit of arc.

The described second heat radiation section is divided into the plurality of sub radiating area by some partitions, the β setting at an angle of described partition and second fin, wherein 0 °＜β＜180 °.

Described β is 90 °.

Also be provided with on the described housing one the 3rd the heat radiation section, the 3rd the heat radiation section arrange along the parallel side direction, be positioned at corresponding back, supply unit position outer surface on.

Be equipped with a lens unit on described every LEDs, described lens unit comprises a supporter and lens, supporter is cylindrical, and it is axially arranged with a cylindrical hole along cylinder, and the bottom center of this supporter is provided with a through hole that is communicated with cylindrical hole and is used for passing for LED; Described lens are that collector lens and part are contained in the cylindrical hole of supporter.

Be provided with a sealing ring between described housing and the light-emitting plate, described fin can be one-body molded with described housing, and also moulding is connected with the conduction of housing heat then separately.

Described LED is a large-power LED, and its power is more than or equal to 1 watt.

Compared with prior art, the utility model is by being provided with curved base in Projecting Lamp, make in the curved LED of the being installed in Projecting Lamp of LED element, under the situation that does not increase existing LED Projecting Lamp volume, the radiative angle of LED Projecting Lamp is increased greatly, thereby increased the irradiated area of LED Projecting Lamp, and then do not increased substantially under the condition of cost, improved the light projector effect of LED Projecting Lamp effectively.Simultaneously, housing back at the LED Projecting Lamp is provided with fin, and described fin comprises at least one first second heat radiation section of being made up of some first fin of dispelling the heat the section and being made up of some second fin, α in a certain angle between second gap that forms between any two adjacent fin in first gap that forms between any two adjacent fin in the described first heat radiation section and the described second heat radiation section, 0 °＜α＜180 ° wherein, when the direction that to make air-flow no matter still be vertical first fin from parallel first fin flows, all have the heat of part fin to lose rapidly with air-flow, its integral heat sink effect improves a lot with respect to the prior art tool.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model embodiment one.

Fig. 2 is the three-dimensional exploded view of the utility model embodiment one.

Fig. 3 is the left view of the utility model embodiment one.

Fig. 4 is the rearview of the utility model embodiment one.

Fig. 5 is the stereogram of the back side view directions of the utility model embodiment one.

Fig. 6 is the cutaway view of the utility model embodiment one.

Fig. 7 is the three-dimensional exploded view of the lens unit of the utility model embodiment one.

Fig. 8 is the Projecting Lamp lighting angle schematic diagram of the utility model embodiment one.

Fig. 9 is the three-dimensional exploded view of the utility model embodiment two.

Figure 10 is the cutaway view of the utility model embodiment two.

Figure 11 is a prior art Projecting Lamp lighting angle schematic diagram.

[specific embodiment]

Embodiment one

See also Fig. 1 to shown in Figure 8, the Projecting Lamp 8 that present embodiment disclosed comprises housing 1, circuit board 2, LED 3, lens unit 4, sealing ring 5 and light-emitting plate 6, wherein, described LED 3 is contained in the described housing 1, described light-emitting plate 6 is fixed on the housing 1 and with described LED 3 and encloses in this housing 1, described LED 3 is spirogyrate arc surfaced configuration towards light-emitting plate 6 directions in described housing 1, the central angle scope of described spirogyrate cambered surface is 10 to spend to 100 degree.

Described housing 1 is made by the good material of heat conductivility (such as, aluminium), and this housing 1 comprises a diapire 16, four sidewalls 15 and surrounds the receiving space 13 that forms by diapire 16 and sidewall 15.Described diapire 16 mediads protrude the curved base 160 that formation one is used to support described circuit board 2 outward, and 160 two orthogonal cross sections of this curved base all are evagination circular arc, and the radius of evagination circular arc can be designed to different values according to actual needs.Certainly curved base 160 also can be designed to other shapes, is evagination circular arc as curved base 160 towards the cross section of light-emitting plate 6, and in the cross section of another vertical with it direction shape linearly.In addition, also be provided with a support 11, some fin 12 on the described housing 1, described support 11 is mainly used in support fixation housing 1, it links to each other with housing 1 by screw 14, on support 11, also be provided with the locating hole 110 that is used for fixing LED Projecting Lamp 8, the LED Projecting Lamp be fixed on third party's object so that pass locating hole with screw etc. when using.

Described fin 12 by the good material of heat conductivility (such as, aluminium) make, it is arranged on back 17 outer surfaces of housing 1, distribute in the form of sheets, this fin can be one-body molded with described housing, also moulding is connected with the conduction of housing heat then separately, is beneficial to the heat that LED produces is lost rapidly.Described fin 12 mainly is made up of one first heat radiation section 121, the second heat radiation section 122 and the 3rd heat radiation section 123.Wherein, described first heat radiation section 121 and second fin, 122 districts are arranged on the corresponding position of back 17 outer surfaces and LED 3 positions, be mainly used in LED 3 is dispelled the heat.Wherein, the first heat radiation section 121 is made up of two heat radiation subregions 1210, and this two heat radiations subregion 1210 is respectively adjacent to left and right side 18 and is provided with.Be equipped with first gap 1212 between two adjacent first fin 1211 in the described first heat radiation section 121.The described second heat radiation section 122 is arranged between the described two heat radiation subregions 1210, this second heat radiation section 122 is made of some second fin 1221, and be divided into plurality of sub radiating area 1220 by some partitions 1223 (being the gap), the described partition 1223 and second fin 1221 β at an angle are provided with, 0 °＜β＜180 ° wherein, β=90 ° preferably, promptly described partition described 1223 and the 1221 vertical settings of second fin.Be equipped with second gap 1222 between two adjacent second fin 1221 in the described second heat radiation section 122.Form certain angle α between wherein said first gap 1212 and second gap 1222,0 °＜α＜180 ° wherein, α=90 ° preferably, promptly described first gap 1212 and second gap, 1222 vertical arrangement.18 look from the side, the described first heat radiation section 121 and the second heat radiation section 122 whole curved distributions, and housing 1 middle part is the summit of arc.

During Projecting Lamp 8 work, the heat that LED 3 produces is swiftly delivered to fin 12, when air is mobile along the parallel first heat radiation section 121 directions, air-flow a1 flows through in first gap 1212 between the first heat radiation section 121, the heat on first heat radiation 121 surfaces, section is lost rapidly with air-flow a1, simultaneously, the air-flow a1 that is arranged so that in second gap 1222 can flow through from second gap 1222, has strengthened the radiating effect of the second heat radiation section 122; When air is mobile along the vertical first heat radiation section 121 directions, air-flow b1 1222 flows through in second second gap of heat radiation between the section 122, the heat on second heat radiation 122 surfaces, section is lost rapidly with air-flow b1, simultaneously, because the first heat radiation section 121 whole curved configurations, and housing 1 middle part is the summit of arc, so the fin that air-flow b1 can not contacted at first all stops, also can form air-flow in the gap between the higher fin in other positions, thereby the heat that it is surperficial is taken away rapidly with air-flow b1, has than linearly disposing and has better radiating effect.As seen, no matter air still is that the direction in vertical fins district 121 flows from the direction of the parallel first heat radiation section 121, all has the heat of part fin to lose rapidly with air-flow, and its integral heat sink effect improves a lot with respect to the prior art tool.

Described the 3rd fin 123 is arranged along parallel side 18 directions, be positioned at corresponding back, supply unit position outer surface on, be mainly used in supply unit dispelled the heat.

Described circuit board 2 is for flexible PCB and have good heat-conducting, and it is made up of some strip circuit boards 21, and LED 3 evenly is installed on the strip circuit board 21, and quantity and the packing density of LED 3 are set according to actual needs.LED 3 can serial or parallel connection or both be connected, after preferably the LED 3 on each strip circuit board 21 is connected in series mutually again with adjacent strip circuit board 21 on LED be connected in parallel.On each LEDs 3, be equipped with a lens unit 4, this lens unit 4 comprises supporter 41 and lens 42, supporter 41 is a black plastic spare, cylindrical, be axially arranged with a cylindrical hole 411 along cylinder in this cylindrical support body 41,410 centers, bottom surface of supporter 41 are provided with the through hole 4101 of a connection cylindrical hole 411, and this through hole 4101 passes for LED 3.Lens 42 are a bull's-eye, are used to assemble the light that LED 3 sends.Lens 42 parts are contained in the cylindrical hole 411, and the buckle structure (not shown) that cooperatively interacts on the side by its side and cylindrical hole 411 is connected on the supporter 41 in the mode of buckle, and whole lens unit 4 is fixed on the circuit board 2 in modes such as stickups.Certainly, the structure of said lens unit 4 is the present embodiment preferred construction, it can also have other structures, and a hole of passing for LED 3 directly is set in the bottom of lens 42 as supporter 41 is not set, and it is first-class in modes such as stickups lens 42 to be fixed on circuit board 2 equally.Certainly foregoing circuit plate 2 also can be formed or be made up of a lot of fritter circuit boards by a monoblock circuit board.And described lens 42 also can use prefocus cup to replace.

Light-emitting plate 6 is a light-permeable plate, and it can also can be common plate glass for playing the lens of convergence or disperse function.Light-emitting plate 6 is installed on the housing 1 by modes such as screw connections, and circuit board 2, LED 3 and lens unit 4 are closed in the housing 1.For better waterproof, a waterproof grommet 5 is installed also between light-emitting plate 6 and housing 1.

See also Fig. 5 and shown in Figure 8, during assembling, curved base 160 surfaces of circuit board 2 next-door neighbour's shell bottom wall 16 are installed on the curved base 160, make the LED 3 on the circuit board 2 be the configuration of spirogyrate arc surfaced along curved base 160 surfaces.Therefore, with respect to the LED Projecting Lamp of prior art, the hot spot L1 that the LED of same lighting angle, the hot spot L2 that the light 31 that sends during curved distribution forms under the identical condition of other conditions obviously form when being plane distribution.

Embodiment two

See also Fig. 9 and shown in Figure 10, LED Projecting Lamp 8 differences that LED Projecting Lamp 8 ' that present embodiment disclosed and embodiment one are disclosed are that the curved base 160 ' of support circuit plate 2 ' is not to be made of one piece by housing 1 ', are used for support circuit plate 2 ' curved base 160 ' but installed one in addition on the diapire 16 ' of housing 1 '.The diapire 16 ' of housing 1 ' is a plane, and curved base 160 ' is made by the good material of heat conductivility, and it is fixed on the diapire 16 ' by screw or other known modes.Curved base 160 ' the surface of circuit board 2 ' next-door neighbour shell bottom wall 16 ' is installed on the curved base 160 ', makes LED 3 ' on the circuit board 2 ' along the curved distribution of the surface configuration of curved base 160 '.Light-emitting plate 6 ' is installed on the housing 1 ' by modes such as screw connections, and circuit board 2 ', LED 3 ' and lens unit 4 ' are closed in the housing 1 '.Equally, a waterproof grommet 5 ' also is installed between light-emitting plate 6 ' and housing 1 '.

The utility model is by being provided with curved base 160 (160 ') in LED Projecting Lamp 8, making LED element 3 be the evagination arc surfaced is configured in the LED Projecting Lamp 8, under the situation that does not increase existing LED Projecting Lamp volume, LED Projecting Lamp 8 radiative angles are increased greatly, thereby increased the irradiated area of LED Projecting Lamp 8, and then do not increasing substantially under the condition of cost, improved the light projector effect of LED Projecting Lamp 8 effectively.Simultaneously, housing back at LED Projecting Lamp 8 is provided with fin, and described fin 12 comprises at least one first second heat radiation section of being made up of some first fin 122 of dispelling the heat section 121 and being made up of some second fin, α in a certain angle between second gap 1222 that forms between any two adjacent fin in first gap 1212 that forms between any two adjacent fin in the described first heat radiation section 121 and the described second heat radiation section 122,0 °＜α＜180 ° wherein, when the direction that to make air-flow no matter still be vertical first fin from parallel first fin flows, all have the heat of part fin to lose rapidly with air-flow, its integral heat sink effect improves a lot with respect to the prior art tool.

More than describing is embodiment of the present utility model only, forgives and can understand, and under the prerequisite that does not depart from the utility model design, all should be included within the technical conceive of the present utility model simple modification of the present utility model and replacement.

Claims

1. LED Projecting Lamp, comprise housing, light-emitting plate, some LED and supply unit, wherein, described LED is contained in the described housing, described light-emitting plate is fixed on the housing and with LED and encloses in the housing, also be provided with some fin on the described housing, described LED and described supply unit electrically connect, it is characterized in that: described LED is the configuration of spirogyrate arc surfaced towards the light-emitting plate direction in described housing, described fin comprises first heat radiation section of being made up of some first fin and the second heat radiation section of being made up of some second fin at least, first gap and described second that forms between any two adjacent fin of described first heat radiation in the section α in a certain angle between second gap that forms between any two adjacent fin in the section that dispels the heat, wherein 0 °＜α＜180 °.

2. LED Projecting Lamp as claimed in claim 1 is characterized in that: the central angle scope of described spirogyrate cambered surface be 10 spend to 100 the degree.

3. LED Projecting Lamp as claimed in claim 1 or 2, it is characterized in that: the diapire of described housing is provided with a curved base, described LED is close to this curved base surface by circuit board and installs, and makes the LED on the circuit board be the configuration of spirogyrate arc surfaced along the curved base surface.

4. LED Projecting Lamp as claimed in claim 3 is characterized in that: described curved base is one-body molded and form by housing, and described housing is made by the good material of heat conductivility.

5. LED Projecting Lamp as claimed in claim 3 is characterized in that: the independent moulding of described curved base, this element body is made by the good material of heat conductivility, and is connected with the conduction of described shell heat.

6. LED Projecting Lamp as claimed in claim 3 is characterized in that: described circuit board is made up of some strip circuit boards, after the LED on each strip circuit board is connected in series mutually again with adjacent strip circuit board on LED be connected in parallel.

7. LED Projecting Lamp as claimed in claim 3 is characterized in that: described curved base has at least one to be circular arc in two orthogonal cross sections.

8. LED Projecting Lamp as claimed in claim 1 is characterized in that: described α is 90 °.

9. LED Projecting Lamp as claimed in claim 1 is characterized in that: the described first heat radiation section comprises two heat radiation subregions, and the second fin district is positioned between the described two heat radiation subregions.

10. LED Projecting Lamp as claimed in claim 1 is characterized in that: at least one heat radiation section integral body is curved in the described first heat radiation section, the second heat radiation section, and the middle part of housing is the summit of arc.

11. LED Projecting Lamp as claimed in claim 1 is characterized in that: the described second heat radiation section is divided into the plurality of sub radiating area by some partitions, the β setting at an angle of described partition and second fin, wherein 0 °＜β＜180 °.

12. LED Projecting Lamp as claimed in claim 11 is characterized in that: described β is 90 °.

13. LED Projecting Lamp as claimed in claim 1 is characterized in that: also be provided with on the described housing one the 3rd the heat radiation section, the 3rd the heat radiation section arrange along the parallel side direction, be positioned at corresponding back, supply unit position outer surface on.

14. LED Projecting Lamp as claimed in claim 1 or 2, it is characterized in that: be equipped with a lens unit on described every LEDs, described lens unit comprises a supporter and lens, supporter is cylindrical, it is axially arranged with a cylindrical hole along cylinder, and the bottom center of this supporter is provided with a through hole that is communicated with cylindrical hole and is used for passing for LED; Described lens are that collector lens and part are contained in the cylindrical hole of supporter.

15. LED Projecting Lamp as claimed in claim 1 or 2 is characterized in that: be provided with a sealing ring between described housing and the light-emitting plate, described fin can be one-body molded with described housing, and also moulding is connected with the conduction of housing heat then separately.

16. LED Projecting Lamp as claimed in claim 1 or 2 is characterized in that: the LED that goes back is a large-power LED, its power is more than or equal to 1 watt.