CN103807617A - Lamp - Google Patents
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- Publication number
- CN103807617A CN103807617A CN201210440342.6A CN201210440342A CN103807617A CN 103807617 A CN103807617 A CN 103807617A CN 201210440342 A CN201210440342 A CN 201210440342A CN 103807617 A CN103807617 A CN 103807617A
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- China
- Prior art keywords
- light fixture
- radiation shield
- openend
- semiconductor chilling
- radiator
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Abstract
The invention discloses a lamp which comprises a shell and a light source. The light source is contained inside the shell. The lamp further comprises a radiator, a semiconductor refrigeration piece and a radiating cover. The radiator, the semiconductor refrigeration piece and the radiating cover are contained inside the shell. The hot end of the semiconductor refrigeration piece is thermally coupled to the radiator. The radiating cover comprises a first opening end and a second opening end, wherein the first opening end is opposite to the second opening end. The first opening end of the radiating cover is thermally coupled to the cold end of the semiconductor refrigeration piece. The light source is arranged at the second opening end of the radiating cover. According to the lamp, due to the semiconductor refrigeration piece and the radiating cover, the radiating speed of the lamp is improved, the radiating efficiency of the lamp is improved, and the service life of the lamp is prolonged.
Description
Technical field
The present invention relates to a kind of lighting device, relate in particular to a kind of light fixture.
Background technology
Existing light fixture is all generally to conduct to dispel the heat by heat.When design, contact the heating position of light fixture by housing, heat is passed.But this conduction pattern, efficiency is low, and speed is slow.Along with the increase of lamp power, this simple heat dissipation design has been not enough to meet the radiating requirements of light fixture, causes heat radiation not in time, finally causes the life-span of light fixture to decline.
Summary of the invention
The object of the present invention is to provide a kind of light fixture of good heat dissipation effect.
In order to solve the problems of the technologies described above, the invention provides a kind of light fixture, it comprises housing and light source, described light source is contained in described housing.Described light fixture also comprises radiator, semiconductor chilling plate and radiation shield, described radiator, semiconductor chilling plate and radiation shield are all contained in described housing, described semiconductor chilling plate hot junction is thermally coupled in described radiator, described radiation shield comprises the first openend and the second openend that are oppositely arranged, the first openend of described radiation shield is thermally coupled in described semiconductor chilling plate cold junction, and described light source is arranged at the second openend of described radiation shield.
Wherein, described semiconductor chilling plate comprises the first card and the second card that are parallel to each other, described the first card is described semiconductor chilling plate cold junction, described the second card is described semiconductor chilling plate hot junction, described the first opening is rectified described the second card setting, and described radiator is posted by described the second card.
Wherein, described radiation shield is parabola shaped reflector, and described the first openend is small end, and described the second openend is large end.
Wherein, described radiation shield adopts aluminium sheet to make.
Wherein, described light fixture also comprises fan, and described fan is thermally coupled on described radiator.
Wherein, described radiator is radiating fin.
Wherein, described housing comprises the first host cavity and second host cavity of connection, between described the first host cavity and the second host cavity, dividing plate is set, described dividing plate is offered through hole, described the first host cavity is accommodated described radiator, semiconductor chilling plate and radiation shield, the second openend of described radiation shield is connected with described through hole, and described the second host cavity is accommodated described light source, and described light source and described through hole are oppositely arranged.
Wherein, the second openend of described radiation shield comprises annular flange flange, and described the second openend is through described through hole, and described annular flange flange is connected with described through hole edge seal.
Wherein, described light source comprises circuit board and light emitting diode, and described circuit board is fixed on described dividing plate, and described circuit board is just to described through hole, and described light-emitting diode arrangement is on described circuit board.
Wherein, described circuit board is connected on described dividing plate by pillar.
Light fixture provided by the invention is accelerated the radiating rate of light fixture by described semiconductor chilling plate and radiation shield, improve the radiating efficiency of light fixture, thereby has extended the service life of light fixture.
Accompanying drawing explanation
In order to be illustrated more clearly in technical scheme of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of the light fixture that provides of embodiment of the present invention;
Fig. 2 is the cutaway view of light fixture shown in Fig. 1 along II-II line;
Fig. 3 is the schematic diagram of the element of lamp interior shown in Fig. 1.
The specific embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is clearly and completely described.
See also Fig. 1 to Fig. 3, a kind of light fixture 100 that embodiment of the present invention provides, it comprises housing 10, light source 20, radiator 30, fan 40, semiconductor chilling plate 50, radiation shield 60, reflection shield 70, transparent cover plate 80 and pressure ring 90.Described fan 40, radiator 30, semiconductor chilling plate 50, radiation shield 60, light source 20 and reflection shield 70 are contained in described housing 10 successively.
Described housing 10 comprises the first host cavity 11 and second host cavity 12 of connection, between described the first host cavity 11 and the second host cavity 12, dividing plate 13 is set.Described dividing plate 13 is offered through hole 130.Described through hole 130 is manhole.Described the first host cavity 11 is accommodated described radiator 30, semiconductor chilling plate 50 and radiation shield 60.Described the second host cavity 12 is accommodated described light source 20.Described dividing plate 13 can completely cut off other heat radiation approach, reduces the reverse conduction of described radiator 30, semiconductor chilling plate 50 and radiation shield 60 heats.
In present embodiment, described radiator 30 is radiating fin.Described radiator 30 is fixed on described dividing plate 13 by pillar 9.Described fan 40 is thermally coupled on described radiator 30.Particularly, described fan 40 is directly posted by described radiator 30.
Described semiconductor chilling plate 50 hot junctions are thermally coupled in described radiator 30.In present embodiment, described semiconductor chilling plate 50 is disc-shaped structure.Described semiconductor chilling plate 50 comprises the first card 50a and the second card 50b that are parallel to each other, and described the first card 50a is described semiconductor chilling plate 50 cold junctions, and described the second card 50b is described semiconductor chilling plate 50 hot junctions.Certainly, in other embodiments, described semiconductor chilling plate 50 can be also the disk-like structure such as rectangle, ellipse.Described semiconductor chilling plate 50 connects power supply circuits (not shown).Described the second card 50b is posted by described radiator 30.
Described radiation shield 60 comprises the first openend 61 and the second openend 62 that are oppositely arranged, and the first openend 61 of described radiation shield 60 is thermally coupled in described semiconductor chilling plate 50 cold junctions.In present embodiment, described radiation shield 60 adopts aluminium sheet to make.Described radiation shield 60 is parabola shaped reflectors, and the reflecting surface of described radiation shield 60 is smooth surface.Described the first openend 61 is small end, and described the second openend 62 is large end.The second openend 62 of described radiation shield 60 comprises annular flange flange 62a, and described the second openend 62 is through described through hole 130, and described annular flange flange 62a is connected with described through hole 130 edge seals.Described annular flange flange 62a is fixed on described through hole 130 edges by screw.Certainly, in other embodiments, described radiation shield 60 can be also circular cone, prism or pyramidal structure.In the time that described semiconductor chilling plate 50 is switched on work, cold air is radiated whole described light fixture 100 by described radiation shield 60, thereby improves the refrigeration of described semiconductor chilling plate 50.Described radiation shield 60 can also increase the contact area of described semiconductor chilling plate 50 cold junctions and air, and is convenient to gathering of hot-air.Simultaneously described radiation shield 60, by increasing heat radiation scope, makes the temperature of whole light fixture 100 roughly the same, has solved the non-uniform temperature phenomenon of traditional heat conducting and radiating.The reflecting surface of described radiation shield 60 can be also cellular curved surface.
Described light source 20 is arranged at the second openend 62 of described radiation shield 60.In present embodiment, described light source 20 is oppositely arranged with described through hole 130.Described light source 20 comprises circuit board 21 and light emitting diode 22, and described circuit board 21 is fixed on described dividing plate 13, and described circuit board 21 is just to described through hole 130, and described light emitting diode 22 is arranged on described circuit board 21.Described circuit board 21 is connected on described dividing plate 13 by pillar 8.Can increase the distance between the second openend 62 of described circuit board 21 and described radiation shield 60 by described pillar 8, increase described the second openend 62 covered area that stretches out, improve heat absorption efficiency.Certainly, in other embodiments, described circuit board 21 also can directly fit on described dividing plate 13.
Described reflection shield 70 is parabolic shape reflector, and described reflection shield 70 one end cover on described light emitting diode 22.The other end of described reflection shield 70 is fixed on the light-emitting window 12a of described the second host cavity 12 by sealing ring 7.Described transparent cover plate 80 is sealed in described light-emitting window 12a.Described pressure ring 90 is fastened on described light-emitting window 12a, and described transparent cover plate 80 is pressed in to described light-emitting window 12a.Certainly, in other embodiments, also can omit described pressure ring 90, described transparent cover plate 80 closes described light-emitting window 12a by helicitic texture or rubber seal.
In addition, described dividing plate 13 can completely cut off other heat radiation approach, reduces the reverse conduction of heat.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a light fixture, it comprises housing and light source, described light source is contained in described housing, it is characterized in that, described light fixture also comprises radiator, semiconductor chilling plate and radiation shield, described radiator, semiconductor chilling plate and radiation shield are all contained in described housing, described semiconductor chilling plate hot junction is thermally coupled in described radiator, described radiation shield comprises the first openend and the second openend that are oppositely arranged, the first openend of described radiation shield is thermally coupled in described semiconductor chilling plate cold junction, and described light source is arranged at the second openend of described radiation shield.
2. light fixture according to claim 1, it is characterized in that, described semiconductor chilling plate comprises the first card and the second card that are parallel to each other, described the first card is described semiconductor chilling plate cold junction, described the second card is described semiconductor chilling plate hot junction, described the first opening is rectified described the second card setting, and described the second card is posted by described radiator.
3. light fixture according to claim 1, is characterized in that, described radiation shield is parabola shaped reflector, and described the first openend is small end, and described the second openend is large end.
4. light fixture according to claim 1, is characterized in that, described radiation shield adopts aluminium sheet to make.
5. light fixture according to claim 1, is characterized in that, described light fixture also comprises fan, and described fan is thermally coupled on described radiator.
6. light fixture according to claim 1, is characterized in that, described radiator is radiating fin.
7. light fixture according to claim 1, it is characterized in that, described housing comprises the first host cavity and second host cavity of connection, between described the first host cavity and the second host cavity, dividing plate is set, described dividing plate is offered through hole, and described the first host cavity is accommodated described radiator, semiconductor chilling plate and radiation shield, and the second openend of described radiation shield is connected with described through hole, described the second host cavity is accommodated described light source, and described light source and described through hole are oppositely arranged.
8. light fixture according to claim 7, is characterized in that, the second openend of described radiation shield comprises annular flange flange, and described the second openend is through described through hole, and described annular flange flange is connected with described through hole edge seal.
9. light fixture according to claim 7, is characterized in that, described light source comprises circuit board and light emitting diode, and described circuit board is fixed on described dividing plate, and described circuit board is just to described through hole, and described light-emitting diode arrangement is on described circuit board.
10. light fixture according to claim 8, is characterized in that, described circuit board is connected on described dividing plate by pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440342.6A CN103807617A (en) | 2012-11-07 | 2012-11-07 | Lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210440342.6A CN103807617A (en) | 2012-11-07 | 2012-11-07 | Lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103807617A true CN103807617A (en) | 2014-05-21 |
Family
ID=50704787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210440342.6A Pending CN103807617A (en) | 2012-11-07 | 2012-11-07 | Lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103807617A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793679A (en) * | 2016-11-29 | 2017-05-31 | 无锡小天鹅股份有限公司 | The circuit board module of device for clothing processing and device for clothing processing |
| CN107062020A (en) * | 2017-06-07 | 2017-08-18 | 安徽美拓照明有限公司 | A kind of LED lamp bulb structure |
-
2012
- 2012-11-07 CN CN201210440342.6A patent/CN103807617A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793679A (en) * | 2016-11-29 | 2017-05-31 | 无锡小天鹅股份有限公司 | The circuit board module of device for clothing processing and device for clothing processing |
| CN107062020A (en) * | 2017-06-07 | 2017-08-18 | 安徽美拓照明有限公司 | A kind of LED lamp bulb structure |
| CN107062020B (en) * | 2017-06-07 | 2019-11-22 | 安徽美拓照明有限公司 | A kind of LED lamp bulb structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |