CN103206693A - Heat dissipation device and lighting device with same - Google Patents
Heat dissipation device and lighting device with same Download PDFInfo
- Publication number
- CN103206693A CN103206693A CN2012100131403A CN201210013140A CN103206693A CN 103206693 A CN103206693 A CN 103206693A CN 2012100131403 A CN2012100131403 A CN 2012100131403A CN 201210013140 A CN201210013140 A CN 201210013140A CN 103206693 A CN103206693 A CN 103206693A
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- heat
- cavity
- heat abstractor
- thermal source
- housing
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Abstract
The invention relates to a heat dissipation device, which comprises a shell (1), wherein the shell (1) comprises a partition plate (3) for dividing the shell into a first cavity (1a) and a second cavity (1b), and a plurality of heat dissipation fins (2) formed on the outer surface of the shell (1); a first heat source is arranged in the first cavity (1a); the heat from the first heat source is transferred to the heat dissipation fins (2) through the shell (1) and is discharged and dissipated through the heat dissipation fins (2); and a second heat source is arranged in the second cavity (1b). The heat dissipation device is characterized in that through holes (4) passing through the shell (1) are arranged in the shell wall for defining the second cavity (1b), and the heat from the second heat source is at least partially discharged and dissipated through the through holes (4). In addition, the invention also relates to a lighting device with the heat dissipation device.
Description
Technical field
The present invention relates to a kind of heat abstractor.In addition, the invention still further relates to a kind of lighting device with this heat abstractor.
Background technology
In the current illuminator, such as having obtained increasing application with led module as the illuminator of light source.Led module has very high requirement to heat radiation, because heat radiation directly influences performance and the life-span of led module.For this reason, designed dissimilar heat abstractors in the prior art, it has used various material and shape, and for example with the metal material heat abstractor made of aluminium for example, it has good performance of heat dissipation.
Yet, in the design of existing heat abstractor, the LED light engine of led module and driver use a public heat abstractor, and this heat abstractor itself has be used to the cavity that holds the LED light engine and the other closed cavity that holds driver.For led module, heat is usually from LED light engine and the driver of led module.Driver is usually placed in a sealing and the limited space, and for example in the actuator housing that is made of the cavity of heat abstractor, so it is easy to the temperature that will reach very high, and this can influence the life-span of the electronic device in the driver.In addition, the heat of LED light engine can pass to actuator housing, and this has also additionally improved the environment temperature of driver.
Summary of the invention
For solving the problems of the technologies described above, the present invention proposes a kind of heat abstractor.Heat abstractor can dispel the heat separately to the different heat sources that is arranged on heat sink interior according to the present invention, and the heat that different heat sources produces can not exert an influence each other.This heat abstractor also has very good heat loss through convection performance simultaneously.In addition, the invention allows for a kind of lighting device with heat abstractor of the above-mentioned type.
First purpose of the present invention realizes thus that by a kind of heat abstractor namely this heat abstractor comprises housing, and this housing comprises the dividing plate that is divided into first cavity and second cavity; And be formed on a plurality of radiating fins on the outer surface of housing, wherein, be provided with first thermal source in first cavity, the heat of described first thermal source is passed to radiating fin by housing, and diffusing by radiating fin row, and be provided with second thermal source in second cavity, it is characterized in that, offer the through hole that penetrates housing in the housing wall that limits second cavity, the heat of second thermal source looses by through hole row at least in part.In design of the present invention, the heat of first thermal source looses by first heat dissipation path row, and namely housing is to radiating fin.And the heat of second thermal source can loose by second heat dissipation path row, namely by being opened in the through hole in the housing wall.Thus, the heat of two thermals source is arranged diffusing by the different heat dissipation path of same heat abstractor, thereby the heat of a thermal source can not exerted an influence to another thermal source, and this has improved heat dispersion.
Preferably, through hole is opened between two adjacent radiating fins.The heat of discharging by through hole enters between the radiating fin, and this has strengthened the air flow property between the radiating fin, has improved the concurrent condition of heat abstractor, has improved heat dispersion.
Advantageously, through hole is formed in the zone of close dividing plate of the housing wall that limits second cavity.Because the air of heat can accumulate in the top of second cavity, therefore via arrangement to be discharged from second cavity near being conducive to heated air in the zone of dividing plate, this has further strengthened the radiating effect of heat abstractor.
Preferably, heat abstractor also comprises the auxiliary-radiating structure that is assembled together with housing and radiating fin.Utilize auxiliary-radiating structure can further strengthen the radiating effect of heat abstractor.
Advantageously, auxiliary-radiating structure comprises metal support plate and a plurality of sheet metals that are arranged on the metal support plate.Because metal has relative higher heat conductivity, it can significantly improve the radiating effect of heat abstractor.
Further advantageously, sheet metal is encapsulated in the radiating fin respectively by inlaying injection molding process.This has significantly strengthened the heat conductivility of heat abstractor.
Propose according to the present invention, the metal support plate utilizes the one side bearing in first cavity on dividing plate, and utilizes its opposite side and the first thermal source thermo-contact.The heat of first thermal source can directly conduct by the metal support plate gives the sheet metal that is attached thereto, thereby the heat of first thermal source is directly delivered to the external world, and can not be delivered to second thermal source that is arranged in second cavity, and eliminated the influence of its heat to second thermal source.
Optionally, the metal support plate is encapsulated in the dividing plate by inlaying injection molding process, and dividing plate and the first thermal source thermo-contact.Because the thermal resistance of dividing plate is greater than the metal support plate, therefore, can preferably passes to the sheet metal that is attached thereto by the metal support plate from the heat of thermal source, thereby avoid heat to be delivered in the adjacent cavity.
Preferably, metal support plate and sheet metal are made by copper base or alumina-base material, can certainly be made by the metal material with high thermal conductivity of other types.
Advantageously, dividing plate and housing are made into integration by heat-conducting plastic.At this, dividing plate has been separated into first cavity and second cavity with housing, because dividing plate made by heat-conducting plastic, so it has cut off two cavitys well, and has realized the electric insulation between two cavitys.
Preferably, radiating fin is made by inlaying injection molding process by heat-conducting plastic.Heat-conducting plastic is more prone to processing and manufacturing, and it can be fashioned into the heat abstractor of different shape, and its cost is much lower with respect to metal simultaneously, and weight is less relatively.
Another object of the present invention realizes that by a kind of lighting device this lighting device has the heat abstractor of the above-mentioned type.Use is good according to the heat dispersion of the lighting device of heat abstractor of the present invention, and is with low cost.
Preferably, lighting device according to the present invention comprises that wherein the LED luminescence component is arranged in first cavity, and drive arrangement is in second cavity as the LED luminescence component of first thermal source with as the driver of second thermal source.Because dividing plate is separated two cavitys, therefore, is kept apart by electric insulation ground between LED luminescence component and the driver.Simultaneously, dividing plate can prevent also that a heat in the cavity is delivered in the other cavity.
Description of drawings
Accompanying drawing constitutes the part of this specification, is used for helping further to understand the present invention.These accompanying drawings illustrate embodiments of the invention, and are used for illustrating principle of the present invention with specification.Identical in the accompanying drawings parts are represented with identical label.Shown in the figure:
Fig. 1 is the sectional view that has according to the lighting device of heat abstractor of the present invention;
Fig. 2 is the stereogram that has according to the lighting device of heat abstractor of the present invention;
Fig. 3 is the schematic diagram according to the auxiliary-radiating structure of heat abstractor of the present invention.
The specific embodiment
Fig. 1 shows the sectional view according to lighting device of the present invention, and this lighting device has according to heat abstractor of the present invention.As seen from the figure, this lighting device also comprise be arranged on according in the heat abstractor of the present invention, as the LED luminescence component 6 of first thermal source with as the driver 7 of second thermal source.Further as seen, heat abstractor according to the present invention comprises from figure: housing 1, and this housing 1 comprises the dividing plate 3 that is divided into the first cavity 1a and the second cavity 1b; With a plurality of radiating fins 2 on the outer surface that is formed on housing 1, wherein, be arranged among the first cavity 1a as the LED luminescence component 6 of first thermal source, and be arranged among the second cavity 1b as the driver 7 of second thermal source.
In addition, as can be seen from Fig. 1, this heat abstractor also comprises the auxiliary-radiating structure 5 that is assembled together with housing 1 and a plurality of radiating fin 2, and this auxiliary-radiating structure 5 comprises metal support plate 5a and a plurality of sheet metal 5b (referring to Fig. 3) that are arranged on the metal support plate 5a.In the present embodiment, sheet metal 5b is encapsulated in respectively in the radiating fin 2 by inlaying injection molding process, and metal support plate 5a utilizes the one side bearing on dividing plate 3 in the first cavity 1a, and utilizes opposite side and 6 thermo-contacts of LED luminescence component.Optionally, metal support plate 5a also is encapsulated in the dividing plate 3 by inlaying injection molding process, and dividing plate 3 and 6 thermo-contacts of LED luminescence component.In the present embodiment, metal support plate 5a and sheet metal 5b are made by copper base or alumina-base material, and dividing plate 3 is made into integration by heat-conducting plastic with housing 1, and simultaneously, radiating fin 2 is also made by inlaying injection molding process by heat-conducting plastic.
In the present embodiment, the heat of LED luminescence component 6 passes to the sheet metal 5b that is attached thereto by metal support plate 5a, and looses in surrounding environment by radiating fin 2 rows that are arranged on the housing 1.In addition, further as seen, offer the through hole 4 that penetrates housing 1 in the housing wall that limits the second cavity 1b from Fig. 1, the heat of driver 7 looses by these through holes 4 rows at least in part.In addition, these through holes 4 are offered and are formed between two adjacent radiating fins 2 in the zone of close dividing plate 3 of the housing wall that limits the second cavity 1b.
Fig. 2 shows the stereogram that has according to the lighting device of heat abstractor of the present invention.As seen from the figure, between per two adjacent radiating fins 2, be formed with a through hole 4.
Fig. 3 shows the schematic diagram according to the auxiliary-radiating structure 5 of heat abstractor of the present invention.As seen from the figure, this auxiliary-radiating structure 5 comprises metal support plate 5a and a plurality of sheet metal 5b that are arranged on the metal support plate 5a.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Reference number
1 housing
1a first cavity
1b second cavity
2 radiating fins
3 dividing plates
4 through holes
5 auxiliary-radiating structures
5a metal support plate
The 5b sheet metal
6 LED luminescence components
7 drivers
Claims (13)
1. heat abstractor, comprising: housing (1), described housing (1) comprise the dividing plate (3) that is divided into first cavity (1a) and second cavity (1b); And be formed on described housing
(1) a plurality of radiating fins (2) on the outer surface, wherein, be provided with first thermal source in described first cavity (1a), the heat of described first thermal source is passed to described radiating fin (2) by described housing (1), and it is diffusing by described radiating fin (2) row, and be provided with second thermal source in described second cavity (1b), it is characterized in that, offer the through hole (4) that penetrates described housing (1) in the housing wall that limits described second cavity (1b), the heat of described second thermal source looses by described through hole (4) row at least in part.
2. heat abstractor according to claim 1 is characterized in that, described through hole (4) is opened between two adjacent described radiating fins (2).
3. heat abstractor according to claim 2 is characterized in that, described through hole (4) is formed in the zone of close described dividing plate (3) of the described housing wall that limits described second cavity (1b).
4. heat abstractor according to claim 1 is characterized in that, described heat abstractor also comprises the auxiliary-radiating structure (5) that is assembled together with described housing (1) and described radiating fin (2).
5. heat abstractor according to claim 4 is characterized in that, described auxiliary-radiating structure (5) comprises metal support plate (5a) and is arranged on a plurality of sheet metals (5b) on the described metal support plate (5a).
6. heat abstractor according to claim 5 is characterized in that, described sheet metal (5b) is encapsulated in respectively in the described radiating fin (2) by inlaying injection molding process.
7. heat abstractor according to claim 5 is characterized in that, described metal support plate (5a) utilizes the one side bearing in described first cavity (1a) on described dividing plate (3), and utilizes its opposite side and the described first thermal source thermo-contact.
8. heat abstractor according to claim 5 is characterized in that, described metal support plate (5a) is encapsulated in the described dividing plate (3) by inlaying injection molding process, and described dividing plate (3) and the described first thermal source thermo-contact.
9. heat abstractor according to claim 5 is characterized in that, described metal support plate (5a) and described sheet metal (5b) are made by copper base or alumina-base material.
10. according to each described heat abstractor in the claim 1 to 9, it is characterized in that described dividing plate (3) is made into integration by heat-conducting plastic with described housing (1).
11., it is characterized in that described radiating fin (2) is made by inlaying injection molding process by heat-conducting plastic according to each described heat abstractor in the claim 1 to 9.
12. a lighting device is characterized in that, described lighting device has according to each described heat abstractor in the claim 1 to 11.
13. lighting device according to claim 12, it is characterized in that, described lighting device comprises as the LED luminescence component (6) of described first thermal source with as the driver (7) of described second thermal source, wherein said LED luminescence component (6) is arranged in described first cavity (1a), and described driver (7) is arranged in described second cavity (1b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100131403A CN103206693A (en) | 2012-01-16 | 2012-01-16 | Heat dissipation device and lighting device with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100131403A CN103206693A (en) | 2012-01-16 | 2012-01-16 | Heat dissipation device and lighting device with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103206693A true CN103206693A (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100131403A Pending CN103206693A (en) | 2012-01-16 | 2012-01-16 | Heat dissipation device and lighting device with same |
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| CN (1) | CN103206693A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557504A (en) * | 2013-09-22 | 2014-02-05 | 王子跃 | Technical manufacturing method for plastic radiating lamp body of LED (light emitting diode) lamp |
| CN109786541A (en) * | 2019-03-15 | 2019-05-21 | 广东英维克技术有限公司 | Heat radiator |
| CN113973452A (en) * | 2020-07-23 | 2022-01-25 | 法可赛阿达斯独资有限公司 | Display assembly for imaging device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709837A (en) * | 2009-12-30 | 2010-05-19 | 史杰 | LED energy-saving lamp cup |
| CN102022682A (en) * | 2010-12-07 | 2011-04-20 | 上海亮硕光电子科技有限公司 | LED (Light-Emitting Diode) embedded barrel lamp |
| CN201916760U (en) * | 2010-12-28 | 2011-08-03 | 史杰 | LED bulb capable of being cooled by fan intensively |
-
2012
- 2012-01-16 CN CN2012100131403A patent/CN103206693A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709837A (en) * | 2009-12-30 | 2010-05-19 | 史杰 | LED energy-saving lamp cup |
| CN102022682A (en) * | 2010-12-07 | 2011-04-20 | 上海亮硕光电子科技有限公司 | LED (Light-Emitting Diode) embedded barrel lamp |
| CN201916760U (en) * | 2010-12-28 | 2011-08-03 | 史杰 | LED bulb capable of being cooled by fan intensively |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557504A (en) * | 2013-09-22 | 2014-02-05 | 王子跃 | Technical manufacturing method for plastic radiating lamp body of LED (light emitting diode) lamp |
| CN109786541A (en) * | 2019-03-15 | 2019-05-21 | 广东英维克技术有限公司 | Heat radiator |
| CN109786541B (en) * | 2019-03-15 | 2024-04-19 | 广东英维克技术有限公司 | Heat dissipation device |
| CN113973452A (en) * | 2020-07-23 | 2022-01-25 | 法可赛阿达斯独资有限公司 | Display assembly for imaging device |
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Application publication date: 20130717 |
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| RJ01 | Rejection of invention patent application after publication |