CN203309557U - LED lighting device - Google Patents
LED lighting device Download PDFInfo
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- CN203309557U CN203309557U CN2013201245435U CN201320124543U CN203309557U CN 203309557 U CN203309557 U CN 203309557U CN 2013201245435 U CN2013201245435 U CN 2013201245435U CN 201320124543 U CN201320124543 U CN 201320124543U CN 203309557 U CN203309557 U CN 203309557U
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- electric insulation
- insulation part
- lighting device
- led lighting
- path
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Abstract
An LED lighting device comprises an optical engine, a cooling device and a driver shell, wherein the optical engine comprises a circuit board and an LED chip arranged on the circuit board, the cooling device comprises a circumferential wall defining a containing cavity, and a partition plate arranged in the containing cavity, and the optical engine is borne by the partition plate through a first electric insulation part. The LED lighting device is characterized by further comprising a second electric insulation part, at least part of the second electric insulation part is arranged between the optical engine and the circumferential wall, and a creepage path from the optical engine to the cooling device is defined by the second electric insulation part.
Description
Technical field
The utility model relates to a kind of LED lighting device.
Background technology
At present, electronic installation, particularly relate to the relevant lighting apparatus of lighting engineering by more and more extensive use, the electric property of lighting apparatus and the requirement of mechanical performance are also improved thereupon, particularly aspect electric property, the user has more and more higher requirement to insulating properties and the heat dispersion of lighting apparatus.For example, baby spot, headlight and stage illumination, lighting etc., such lighting apparatus usually uses the LED technology to realize illumination, this lighting system needs electrical insulation capability and heat dispersion preferably, to guarantee the adopting lighting apparatus of this technology can keep continuous reliability and validity in concrete applied environment.Simultaneously, in order to improve the compatibility of lighting apparatus in different illumination application platforms, in the electrical insulation capability of the lighting apparatus that guarantees employing LED technology, the heat dispersion that also needs to guarantee this kind lighting apparatus is improved.
A solution of the prior art proposes, adopt the material of metal as the heat abstractor of manufacturing the LED lighting device, can utilize like this heat conductivility preferably of metal material to improve the radiating effect of heat abstractor, thereby guarantee the stable working environment of LED lighting device.But, adopt the heat abstractor of metal material because guarantee that the cause of electrical insulation capability tends to be designed to shorter fin, and the heat abstractor with shorter fin can affect the radiating effect of heat abstractor itself, make the steady operation that can't guarantee lighting device.In addition, adopt the material of plastics as the heat abstractor of manufacturing the LED lighting device.Plastic material also has heat conductivility preferably, can guarantee to a certain extent good radiating effect.But adopt the heat abstractor of plastics can't be applied on the lighting device with high energy illuminating effect because of the reason of its material itself, thereby be defined compatibility and the autgmentability of its application.
Another solution of the prior art proposes, and adopts the structural design with insulation spacer, can guarantee like this circuit board with LED chip is implemented the effect of effective electric insulation.But this design is because taken larger area, make in the situation that do not change the volume of whole lighting device, the efficiently radiates heat area of heat abstractor is reduced, thereby causes the fin of heat abstractor to reduce, and can't guarantee effective radiating effect.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of novel LED lighting device.This lighting device provides a kind of novel structure, and is guaranteeing in electrical insulation capability, to have improved heat-conducting effect preferably, and has better compatibility, can be applied to different illumination platforms.In addition, this lighting device has stronger stability and reliability, can, when saving production cost, be easy to manufacture and assemble.
According to lighting device of the present utility model, comprise: comprise circuit board and the photo engine, heat abstractor, the actuator housing that are arranged on the LED chip on circuit board, heat abstractor comprises the perisporium that limits container cavity and is arranged on the dividing plate in container cavity, dividing plate utilizes the first electric insulation part carrying photo engine, this LED lighting device also comprises the second electric insulation part, the second electric insulation part is at least partially disposed between photo engine and perisporium, and the second electric insulation part limits by the creepage path of photo engine to heat abstractor.Because the second electric insulation part provides extra electric insulating effect to this lighting device, thereby by the second electric insulation part is set, the electric insulating effect that makes lighting device provide except the first electric insulation part, the creepage path that can also be improved, thus improve electric insulating effect.
According to a preferred design of the present utility model, described the second electric insulation part is arranged between described the first electric insulation part and described perisporium.By such setting, conductive component and perisporium are carried out to electric insulation, thereby further improve the electric insulating effect of this lighting device.
Preferably, described creepage path extends to the below of described circuit board from described circuit board top.Thereby, by the bearing of trend that changes this creepage path, extended creepage path, and the main increase embodiment in creepage path is in the axial direction, thereby has guaranteed electrical insulation capability.
Preferably, described creepage path extends to the below of the first electric insulation part from described circuit board top.Creepage path by such design, further extended creepage path by the bearing of trend that changes this creepage path, thereby guaranteed electrical insulation capability.
Preferably, described creepage path comprises a plurality of radial path parts and a plurality of axial path, and wherein the 3rd radial path that is positioned at described circuit board below in a plurality of radial path parts is with respect to the roundabout setting of the first radial path that is positioned at described circuit board top.A plurality of radial path parts and a plurality of axial path provide the creepage path extended, and due to roundabout setting, have not only increased creepage path, and save the space hold in radial direction, thereby offer the more accommodation space of heat abstractor.
Preferably, described the first radial path extends to the top edge of described circuit board from the pad of LED chip, the first axial path in a plurality of axial path extends to the lower limb of described circuit board from the top edge of described circuit board, the second radial path in described a plurality of radial path part extends to the top edge of the first electric insulation part from the lower limb of described circuit board, the second axial path in a plurality of axial path extends to the lower limb of described the first electric insulation part from the top edge of described the first electric insulation part, the 3rd radial path in described a plurality of radial path part extends radially inwardly from the lower limb of described the first electric insulation part at the dorsal part of described the first electric insulation part.In this way, the guiding on multiple directions is carried out in creepage path, thereby save erection space and space because keeping long creepage path to need, avoided like this confined space of waste heat abstractor, guaranteed the installing space of heat abstractor.
Preferably, the second electric insulation part comprises first and second portion, and wherein first is around perisporium, and second portion is the bead part from extending radially inwardly around perisporium.Being divided into two-part the second electric insulation part provides to the effect of the electric insulation of the diverse location of heat abstractor, has guaranteed that LED photo engine and heat abstractor still have good electric insulating effect when may reducing that the area of electric insulation part is installed.
Preferably, first limits first, second radial path and first, second axial path, and described second portion limits the 3rd radial path.The different paths that the different piece of foundation the second electric insulation part limits, the diverse location of this heat abstractor is implemented electric insulating effect by different creepage paths.
Preferably, the second portion of the second electric insulation part is embedded in described dividing plate.By second portion, embed in dividing plate, the second electric insulation part is able to, when saving installing space, be connected with heat abstractor, thereby implements electric insulation functions.
Preferably, the second electric insulation part is connected ordinatedly with described partition shape.Such connection, facilitate the compatibility of the second electric insulation part and different heat abstractor, thereby guarantee the stability of the electric insulating effect in this heat abstractor.
Preferably, the second portion of the second electric insulation part is designed to grab, is provided with draw-in groove on described dividing plate.Snap fit, as low, the effective mode of a kind of cost, makes this electric insulation part to be connected securely with heat abstractor.
Preferably, the first electric insulation part and described photo engine are set in described the second electric insulation part.Such design makes, and as the photo engine of conductive component, is implemented electric insulation effectively in can be on a large scale, thereby has guaranteed the electric property of this lighting device.
Preferably, the second electric insulation part has the outline similar to described heat abstractor, on described the second electric insulation part is resisted against around described heat abstractor interior.This similar outline makes this electric insulation part with the interior of heat abstractor, to coordinate preferably on every side, in different directions conductive component is carried out the possibility of electric insulation thereby provide.
Preferably, described heat abstractor has the cylinder profile of hollow.Photo engine and miscellaneous part are mounted in the profile of this hollow, and heat abstractor can be to being in inner miscellaneous part enforcement effectively and being omnibearing radiating effect like this.
Preferably, described the second electric insulation part has annular profile.The design of annular can meet fully may be the design of the heat abstractor of cylindrical structure, and the electric insulation part that has like this this profile can coordinate with the interior of heat abstractor effectively on every side, thereby implements comprehensive insulation effect.
Preferably, dividing plate is divided into the first cavity and the second cavity by the container cavity of described heat abstractor, and described actuator housing is arranged in described second cavity of described heat abstractor.Described two cavitys provide the possibility that different parts is arranged to different spaces to this heat abstractor, the possibility of different parts being implemented to multi-form insulation effect also is provided.
Preferably, the lower surface of the first electric insulation part and upper surface arrange respectively the first tack coat and the second tack coat, with described dividing plate, are connected with described photo engine respectively.Arrange that tack coat can carry out simply and be reliably fixing, like this, all parts can firmly connect each other.
Preferably, actuator housing has jut, and described dividing plate, described the second electric insulation part, described the first electric insulation part and described photo engine are offered respectively described through hole, and described jut runs through described through hole.By such design, actuator housing is able to be connected with other parts in being arranged at heat abstractor with heat abstractor, and the effective erection space in heat abstractor has been saved in such design.
Preferably, heat abstractor has at least one fin, and described fin is arranged on the outside of described heat abstractor, and extends radially outward.Outward extending fin provides a kind of design of simple heat radiation, in the situation that the electric insulating effect of heat abstractor is kept, radiating effect also can obtain positive improvement because of the length growth of fin.
The accompanying drawing explanation
Accompanying drawing forms the part of this specification, be used to helping further to understand the utility model.These accompanying drawings illustrate embodiment of the present utility model, and are used for illustrating principle of the present utility model together with specification.Identical parts mean with identical label in the accompanying drawings.Shown in figure:
Fig. 1 illustrates the exploded view according to the lighting device of embodiment of the present utility model;
Fig. 2 and Fig. 3 illustrate the schematic diagram according to the creepage path of the sectional view of the lighting device of the part of embodiment of the present utility model and prolongation;
Fig. 4 illustrates the sectional view according to the lighting device after the assembling of embodiment of the present utility model.
The specific embodiment
Fig. 1 illustrates the exploded view according to the lighting device 100 of embodiment of the present utility model.As shown in Figure 1, according to lighting device 100 of the present utility model comprise photo engine 1, as the first electric insulation part 2, the second electric insulation part 3, heat abstractor 4 and the actuator housing 5 of insulation spacer.Photo engine 1 comprises circuit board 11 and is arranged on the LED chip on circuit board 11, and heat abstractor 4 has perisporium 41 and the dividing plate 42 that limits container cavity, and dividing plate 42 is arranged in container cavity and this container cavity is divided into to two parts.
In the present embodiment, heat abstractor 4 can be designed as the cylinder profile of hollow, and, on the outside of this heat abstractor 4, being provided with a plurality of fin, these fin are to stretch out along radial direction.In addition, the second electric insulation part 3 can have the outline similar to heat abstractor 4.Therefore, the second electric insulation part 3 can be annular profile, the electric insulation part that has like this this shape profile can coordinate with the interior of heat abstractor 4 preferably on every side on geometry, thereby realize laminating securely, like this, guaranteed as the photo engine 1 of conductive component and the electric insulation between heat abstractor 4.Particularly, described the first electric insulation part 2 and the second electric insulation part 3 can adopt the plastic material manufacture, such as the conventional plastic material such as PBT, PC and PA, can produce like this lighter weight, insulation effect parts better and with low cost.
In the process of assembling, actuator housing 5 is arranged in one of them cavity of heat abstractor 4, and photo engine 1, the first electric insulation part 2 and the second electric insulation part 3 all are arranged in another cavity.And, by the through hole of offering in the dividing plate 42 at heat abstractor 4, and the through hole of offering on dividing plate 42, the second electric insulation part 3, the first electric insulation part 2 and photo engine 1 respectively, actuator housing 5 utilizes the jut 51 on it to run through dividing plate 42, the second electric insulation part 3, the first electric insulation part 2 and photo engine 1.
Fig. 2 and Fig. 3 illustrate the schematic diagram according to the creepage path of the sectional view of the lighting device of the part of embodiment of the present utility model and prolongation.As shown in Figure 2, actuator housing 5 runs through dividing plate 42, the second electric insulation part 3, the first electric insulation part 2 and photo engine 1.By the second electric insulation part 3 is arranged between described the first electric insulation part 2 and described perisporium 41, radially see, realized the improvement to the electric insulating effect of this heat abstractor 4.Dividing plate 42 utilizes the first electric insulation part 2 carrying photo engines 1, and the second electric insulation part 3 is to be at least partially disposed between photo engine 1 and perisporium 41, thereby has limited photo engine 1 to the creepage path between heat abstractor 4.The creepage path limited by the second electric insulation part 3 has effectively utilized the confined space of heat abstractor, and by this design, has realized guaranteeing the effect of path.In the present embodiment, axial direction is direction from top to bottom shown in Figure 1, and radial direction is defined as the radial direction with reference to described columned heat abstractor 4.
Particularly, the creepage path 14 limited by the second electric insulation part 3, on the whole, from the top of circuit board 11, extend to the below of circuit board 11, and the below that extends to specifically the first electric insulation part 2 is to reduce the radial space occupied by creepage path.In addition, this is creepage, and path 14 comprises a plurality of radial path parts 141 and a plurality of axial path 142, creepage like this path design is the path of the more multistage on Different Plane and different directions, especially, without the radial space that occupies more heat abstractors, the longitudinal direction creepage path of axial direction and radial direction in other words is longer, make the second electric insulation part 3 can be in the situation that save heat abstractor 4 inner spaces, guaranteed the creepage path of sufficient length, realized good insulation effect and improved the design freedom of fin.
Wherein, a plurality of radial path parts 141 comprise: the first radial path 1411, the second radial path 1412 and the 3rd radial path 1413.The first radial path 1411 extends to the top edge of circuit board 11 from the pad of LED chip; The second radial path 1412 extends to the edge of the first electric insulation part 2 from the lower limb of circuit board 11; And the 3rd radial path 1413 at the dorsal part of the first electric insulation part 2, extend radially inwardly from the lower limb of described the first electric insulation part 2, and the 3rd radial path 1413 arranges round with respect to the first radial path 1411 that is positioned at circuit board 11 tops, thereby do not increase the space hold that footpath makes progress, and realized good insulation effect.
In addition, a plurality of axial path 142 comprise the first axial path 1421 and the second axial path 1422.The first axial path 1421 extends to the lower limb of described circuit board 11 from the top edge of described circuit board 11; The second axial path 1422 extends to the lower limb of described the first electric insulation part 2 from the top edge of described the first electric insulation part 2.
Fig. 2 also shows, and the second electric insulation part 3 comprises first 31 and second portion 32.In the present embodiment, first 31 is designed to around perisporium, and second portion 32 is designed to the bead part extended radially inwardly around perisporium from described.First radial path 1411 in creepage path 14 and the second radial path 1412 are limited by the first 31 of the second electric insulation part 3, and in addition, first 31 has also limited the first axial path 1421 and the second axial path 1422.Simultaneously, second portion 32 has limited the 3rd radial path 1413.
In the present embodiment, the second portion 32 of the second electric insulation part 3 is embedded in dividing plate 42, has formed like this being connected the second electric insulation part 3 and heat abstractor 4.Such embodiment has further improved the compact degree of lighting device.
In unshowned embodiment, the second electric insulation part 3 is that the mode with form fit is connected with dividing plate 42, such the second electric insulation part 3 can connect in conjunction with concrete how much situations of dividing plate 42 with matching, thereby can be in the situation that saving syndeton requisite space be realized good insulation effect.
At another, be in the embodiment illustrated, the second portion 32 of the second electric insulation part 3 is designed to coupler construction, and on dividing plate 42, be designed with the notch that can be connected with coupler construction, such the second electric insulation part 3 can utilize this connected mode to be connected with heat abstractor 4.
Fig. 4 illustrates the sectional view according to the lighting device after the assembling of embodiment of the present utility model.As shown in Figure 4, after the assembling of all parts of lighting device 100 and coupling together, the jut 51 of actuator housing 5 is passed dividing plate 42, the second electric insulation part 3, the first electric insulation part 2 and the photo engine 1 of heat abstractor 4.As can be seen from Figure 3, photo engine 1 and the first electric insulation part 2 are enclosed in the second electric insulation part 3, and can be to be arranged on wherein with sheathed form.
In addition, in the present embodiment, particularly, the dividing plate 42 of heat abstractor 4 is divided into the first cavity 401 and the second cavity 402 by the container cavity of this device.Photo engine 1, the first electric insulation part 2 and the second electric insulation part 3 are arranged in the first cavity 401, and actuator housing 5 is arranged in the second cavity 402 after installation.In one embodiment, upper surface and lower surface at the first electric insulation part 2 are respectively arranged with tack coat, thereby the first electric insulation part 2 can directly be connected with photo engine 1 with dividing plate 42 by tack coat, like this, by the second electric insulation part 3, realized multi-faceted and multiple insulation effect again.
These are only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All any modifications of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Reference number
1 photo engine
2 first electric insulation parts
3 second electric insulation parts
4 heat abstractors
5 actuator housings
11 circuit boards
12 LED chips
14 creepage paths
31 firsts
32 second portions
41 perisporiums
42 dividing plates
51 juts
100 lighting devices
401 first cavitys
402 second cavitys
More than 141 radial path
More than 142 axial path
1411 first radial path
1412 second radial path
1413 the 3rd radial path
1421 first axial path
1422 second axial path.
Claims (19)
1. a LED lighting device (100), comprise: comprise circuit board (11) and be arranged on the photo engine (1) of the LED chip (12) on described circuit board, heat abstractor (4), actuator housing (5), described heat abstractor (4) comprises the perisporium (41) that limits container cavity and is arranged on the dividing plate (42) in described container cavity, described dividing plate (42) utilizes the first electric insulation part (2) to carry described photo engine (1), it is characterized in that, described LED lighting device (100) also comprises the second electric insulation part (3), described the second electric insulation part (3) is at least partially disposed between described photo engine (1) and described perisporium (41), described the second electric insulation part (3) limits by the creepage path (14) of described photo engine (1) to described heat abstractor (4).
2. LED lighting device according to claim 1 (100), is characterized in that, described the second electric insulation part (3) is arranged between described the first electric insulation part (2) and described perisporium (41).
3. LED lighting device according to claim 1 and 2 (100), is characterized in that, described creepage path (14) extends to the below of described circuit board (11) from described circuit board (11) top.
4. LED lighting device according to claim 3 (100), is characterized in that, described creepage path (14) extends to the below of described the first electric insulation part (2) from described circuit board (11) top.
5. LED lighting device according to claim 4 (100), it is characterized in that, described creepage path (14) comprises a plurality of radial path part (141) and a plurality of axial path (142), and the 3rd radial path (1413) that is positioned at described circuit board (11) below in wherein said a plurality of radial path parts (141) is with respect to the roundabout setting of the first radial path (1411) that is positioned at described circuit board (11) top.
6. LED lighting device according to claim 5 (100), it is characterized in that, described the first radial path (1411) extends to the top edge of described circuit board (11) from the pad of described LED chip, the first axial path (1421) in described a plurality of axial path (142) extends to the lower limb of described circuit board (11) from the described top edge of described circuit board (11), the second radial path (1412) in described a plurality of radial path parts (141) extends to the top edge of described the first electric insulation part (2) from the described lower limb of described circuit board (11), the second axial path (1422) in described a plurality of axial path (142) extends to the lower limb of described the first electric insulation part (2) from the described top edge of described the first electric insulation part (2), described the 3rd radial path (1413) in described a plurality of radial path parts (141) extends radially inwardly from the described lower limb of described the first electric insulation part (2) at the dorsal part of described the first electric insulation part (2).
7. LED lighting device according to claim 6 (100), it is characterized in that, described the second electric insulation part (3) comprises first (31) and second portion (32), wherein said first (31) is around perisporium, and described second portion (32) is for from the described bead part extended radially inwardly around perisporium.
8. LED lighting device according to claim 7 (100), it is characterized in that, described first (31) limits described first, second radial path and described first, second axial path, and described second portion (32) limits described the 3rd radial path.
9. LED lighting device according to claim 7 (100), is characterized in that, the described second portion (32) of described the second electric insulation part (3) is embedded in described dividing plate (42).
10. LED lighting device according to claim 7 (100), is characterized in that, described the second electric insulation part (3) is connected with described dividing plate (42) form fit ground.
11. LED lighting device according to claim 10 (100), is characterized in that, the described second portion (32) of described the second electric insulation part (3) is designed to grab, and described dividing plate is provided with draw-in groove on (42).
12. LED lighting device according to claim 1 and 2 (100), is characterized in that, described the first electric insulation part (2) and described photo engine (1) are set in described the second electric insulation part (3).
13. LED lighting device according to claim 1 and 2 (100), it is characterized in that, described the second electric insulation part (3) has the outline similar to described heat abstractor (4), on described the second electric insulation part (3) is resisted against around described heat abstractor (4) interior.
14. LED lighting device according to claim 13 (100), is characterized in that, described heat abstractor (4) has the cylinder profile of hollow.
15. LED lighting device according to claim 13 (100), is characterized in that, described the second electric insulation part (3) has annular profile.
16. LED lighting device according to claim 1 and 2 (100), it is characterized in that, described dividing plate is divided into the first cavity (401) and the second cavity (402) by the described container cavity of described heat abstractor (4), and described actuator housing (5) is arranged in described second cavity (402) of described heat abstractor (4).
17. LED lighting device according to claim 1 and 2 (100), it is characterized in that, the lower surface of described the first electric insulation part (2) and upper surface arrange respectively the first tack coat and the second tack coat, with described dividing plate (42), are connected with described photo engine (1) respectively.
18. LED lighting device according to claim 1 and 2 (100), it is characterized in that, described actuator housing has jut (51), described dividing plate (42), described the second electric insulation part (3), described the first electric insulation part (2) and described photo engine (1) are offered respectively through hole, and described jut (51) runs through described through hole.
19. LED lighting device according to claim 1 and 2 (100), is characterized in that, described heat abstractor (4) has at least one fin, and described fin is arranged on the outside of described heat abstractor (4), and extends radially outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201245435U CN203309557U (en) | 2013-03-19 | 2013-03-19 | LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201245435U CN203309557U (en) | 2013-03-19 | 2013-03-19 | LED lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309557U true CN203309557U (en) | 2013-11-27 |
Family
ID=49615766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201245435U Expired - Lifetime CN203309557U (en) | 2013-03-19 | 2013-03-19 | LED lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654084A (en) * | 2015-02-17 | 2015-05-27 | 浙江生辉照明有限公司 | High-efficiency heat dissipation LED (Light Emitting Diode) lamp |
-
2013
- 2013-03-19 CN CN2013201245435U patent/CN203309557U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654084A (en) * | 2015-02-17 | 2015-05-27 | 浙江生辉照明有限公司 | High-efficiency heat dissipation LED (Light Emitting Diode) lamp |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181213 Address after: Munich, Germany Patentee after: LEDVANCE GmbH Address before: Munich, Germany Patentee before: Osram GMBH |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
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| CX01 | Expiry of patent term |