CN102434796A - Lighting device - Google Patents
Lighting device Download PDFInfo
- Publication number
- CN102434796A CN102434796A CN2011103250255A CN201110325025A CN102434796A CN 102434796 A CN102434796 A CN 102434796A CN 2011103250255 A CN2011103250255 A CN 2011103250255A CN 201110325025 A CN201110325025 A CN 201110325025A CN 102434796 A CN102434796 A CN 102434796A
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- cavity
- light
- emitting device
- convection current
- intake section
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to a lighting device, which comprises a containing cavity and a convection cavity, wherein the containing cavity is arranged in the middle of the lighting device, a convection cavity encloses the containing cavity, a lower air inlet part is formed at the lower part of the convection cavity, an upper air outlet part is formed at the upper part of the convection cavity, the convection cavity comprises an inner side cavity surrounding the containing cavity, an outer side cavity enclosing the inner side cavity, and a lighting heat source body, wherein an inner air inlet part corresponding to the lower air inlet part is formed at the lower of the inner side cavity, the top part of the inner side cavity is communicated with the upper air outlet part, the lighting heat source body is used for emitting lighting light and is arranged at the bottom of the containing cavity and the bottom of the convection cavity.
Description
Technical field
The present invention relates to a kind of light-emitting device, relate in particular to a kind of LED light-emitting device.
Background technology
Now, the heat dissipation problem of LED illuminating equipment more and more becomes the bottleneck of its application.
Summary of the invention
Technical problem to be solved by this invention is: provide a kind of cost lower, heat radiation better illumination equipment.
To this, the present invention provides a kind of light-emitting device, comprising:
Hold cavity, be arranged on the middle part of said light-emitting device;
The convection current cavity surrounds the said cavity that holds, and has intake section down in its underpart; Its top has the portion of giving vent to anger; It comprises: be surrounded on the said inboard cavity that holds cavity, and surround the outboard chambers of said inboard cavity, in the bottom of said inboard cavity; Have and said down intake section corresponding in intake section, the top of said inboard cavity with said on the portion of giving vent to anger be communicated with; And,
Luminous heat source body is used to send illumination light, is arranged on the said bottom that holds cavity and convection current cavity.
Adopt technique scheme, the heat that luminous heat source body produces will be transmitted in the said convection current cavity, heat the air of this convection current cavity, and hot-air will flow out from the portion of giving vent to anger, and outside cold air will flow into from following intake section, forms convective cooling.Because the convection current cavity comprises inboard cavity and outboard chambers, the cold air that is flowed into by following intake section will get into outboard chambers successively, get into inboard cavity by interior intake section then, form dual convective structure.Experiment shows, adopts the light-emitting device of the structure of this dual convection current, and its radiating effect is superior to not adopting the light-emitting device of this structure more greatly.
The experiment contrast satisfying product country and international standard prerequisite elder generation, to the LED bulb lamp of equal 300lm to 850lm luminous flux, equal volume, is adopted the technique scheme design lamps, and its skin temperature is than low 8 to 12 ℃ of the light fixture that individual layer convection current cavity is only arranged.
Preferably, said luminous heat source body comprises: the heat conduction substrate and be arranged on shown in the on-chip light-emitting diode component of heat conduction.
Wherein, light-emitting diode component is the illuminator that includes light emitting diode.
Further, said heat conduction substrate adopts aluminium base.
Preferably, said inboard cavity and outboard chambers comprise respectively: the plastics heat radiation shell and the base plate that are arranged on its side surround, and the said plastics heat radiation shell outside is distributed with the radiating groove that is arranged in order.
In general, the radiating effect of plastics will be inferior to such as materials such as aluminiums, and in order to obtain to satisfy the radiating effect of illumination needs, general diode illuminating lamp all must adopt the heat-dissipating casing of aluminum, the great like this manufacturing cost that improved.Show that through test after the dual convective structure of employing the present invention had improved corresponding radiating effect, the plastics heat-dissipating casing can both satisfy the illuminating and heat radiating demand of diode illuminating lamp.And, behind the employing radiating groove, have the heat radiation area of trying one's best big, further improved radiating effect.
Preferably, plastics heat radiation shell adopts high heat radiation nitride composite plastic, can further improve radiating efficiency.
Further, said base plate comprises: the pad and the aluminium base that connect successively, said aluminium base is connected with said luminous heat source body.
Preferably, said intake section down comprises: the following air admission hole that is distributed in said convection current cavity bottom successively.
Preferably, the portion of giving vent to anger comprises on said: the last venthole that is distributed in said convection current cavity bottom successively.
Preferably, said interior intake section comprises: the interior air admission hole that is distributed in said convection current cavity bottom successively.
Preferably, the said cavity that holds adopts aluminium to surround.
Preferably, described light-emitting device comprises: be arranged on its bottom to surround the printing opacity cover body of said luminous heat source body.
Description of drawings
Fig. 1 is the explosion figure of an embodiment of the present invention;
Fig. 2 is that the outside of an embodiment of the present invention is to flow diagram;
Fig. 3 is that the outside of an embodiment of the present invention is to flow diagram;
Fig. 4 be an embodiment of the present invention to flow diagram.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are done further explanation.
See also Fig. 1, a kind of light-emitting device comprises: lamp holder aluminum component 1, plastic cement lamp holder 2, driving power 3, plastics radiating shell 4, heat radiation aluminum component 5, pad 6, aluminium base 7 and printing opacity cover body 8.
Wherein, heat radiation aluminum component 5 surrounds and holds cavity, with splendid attire lamp holder aluminum component 1, plastic cement lamp holder 2 and driving power 3.Plastics radiating shell 4 surrounds the convection current cavity.Pad 6 is equipped with light-emitting diode component with aluminium base 7.
Further referring to Fig. 2, Fig. 3 and Fig. 4, a kind of light-emitting device comprises: hold cavity, be arranged on the middle part of said light-emitting device; The convection current cavity surrounds the said cavity that holds, and has intake section down in its underpart; Its top has the portion of giving vent to anger; It comprises: be surrounded on the said inboard cavity that holds cavity, and surround the outboard chambers of said inboard cavity, in the bottom of said inboard cavity; Have and said down intake section corresponding in intake section, the top of said inboard cavity with said on the portion of giving vent to anger be communicated with; And luminous heat source body is used to send illumination light, is arranged on the said bottom that holds cavity and convection current cavity.
In the foregoing description, the heat that luminous heat source body produces will be transmitted in the said convection current cavity, heat the air of this convection current cavity, and hot-air will flow out from the portion of giving vent to anger, and outside cold air will form convective cooling from intake section inflow down.Because the convection current cavity comprises inboard cavity and outboard chambers, the cold air that is flowed into by following intake section will get into outboard chambers successively, get into inboard cavity by interior intake section then, form dual convective structure.Experiment shows, adopts the light-emitting device of the structure of this dual convection current, and its radiating effect is superior to not adopting the light-emitting device of this structure more greatly.
In general, the radiating effect of plastics will be inferior to such as materials such as aluminiums, and in order to obtain to satisfy the radiating effect of illumination needs, general diode illuminating lamp all must adopt the heat-dissipating casing of aluminum, the great like this manufacturing cost that improved.Show that through test after the dual convective structure of employing the present invention had improved corresponding radiating effect, the plastics heat-dissipating casing can both satisfy the illuminating and heat radiating demand of diode illuminating lamp.And, behind the employing radiating groove, have the heat radiation area of trying one's best big, further improved radiating effect.
Above content is to combine concrete embodiment to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (10)
1. a light-emitting device is characterized in that, comprising:
Hold cavity, be arranged on the middle part of said light-emitting device;
The convection current cavity surrounds the said cavity that holds, and has intake section down in its underpart; Its top has the portion of giving vent to anger; It comprises: be surrounded on the said inboard cavity that holds cavity, and surround the outboard chambers of said inboard cavity, in the bottom of said inboard cavity; Have and said down intake section corresponding in intake section, the top of said inboard cavity with said on the portion of giving vent to anger be communicated with; And,
Luminous heat source body is used to send illumination light, is arranged on the said bottom that holds cavity and convection current cavity.
2. light-emitting device as claimed in claim 1 is characterized in that, said luminous heat source body comprises: the heat conduction substrate and be arranged on shown in the on-chip light-emitting diode component of heat conduction.
3. light-emitting device as claimed in claim 2 is characterized in that, said heat conduction substrate adopts aluminium base.
4. light-emitting device as claimed in claim 1 is characterized in that, said inboard cavity and outboard chambers comprise respectively: the plastics heat radiation shell and the base plate that are arranged on its side surround, and the said plastics heat radiation shell outside is distributed with the radiating groove that is arranged in order.
5. light-emitting device as claimed in claim 4 is characterized in that, said base plate comprises: the pad and the aluminium base that connect successively, said aluminium base is connected with said luminous heat source body.
6. like arbitrary described light-emitting device in the claim 1 to 5, it is characterized in that said intake section down comprises: the following air admission hole that is distributed in said convection current cavity bottom successively.
7. like arbitrary described light-emitting device in the claim 1 to 5, it is characterized in that, said on the portion of giving vent to anger comprise: the last venthole that is distributed in said convection current cavity bottom successively.
8. like arbitrary described light-emitting device in the claim 1 to 5, it is characterized in that said interior intake section comprises: the interior air admission hole that is distributed in said convection current cavity bottom successively.
9. light-emitting device as claimed in claim 1 is characterized in that, the said cavity that holds adopts aluminium to surround.
10. light-emitting device as claimed in claim 1 is characterized in that, comprising: be arranged on its bottom to surround the printing opacity cover body of said luminous heat source body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103250255A CN102434796A (en) | 2011-10-24 | 2011-10-24 | Lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103250255A CN102434796A (en) | 2011-10-24 | 2011-10-24 | Lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102434796A true CN102434796A (en) | 2012-05-02 |
Family
ID=45983027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103250255A Pending CN102434796A (en) | 2011-10-24 | 2011-10-24 | Lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102434796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913785A (en) * | 2012-09-19 | 2013-02-06 | 广东奥其斯科技有限公司 | LED bulb |
| CN104279439A (en) * | 2013-07-12 | 2015-01-14 | 展晶科技(深圳)有限公司 | LED (light emitting diode) lamp bulb |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547729U (en) * | 2009-11-24 | 2010-08-11 | 东莞市友美电源设备有限公司 | LED bulb cooling structure |
| CN201983042U (en) * | 2011-02-10 | 2011-09-21 | 鹤山市银雨照明有限公司 | Light-emitting diode (LED) lamp |
| CN202002053U (en) * | 2011-01-25 | 2011-10-05 | 惠州雷士光电科技有限公司 | Multi-stage heat radiation type light emitting diode (LED) lamp |
| CN202484632U (en) * | 2011-10-24 | 2012-10-10 | 深圳嘉信高能源技术股份有限公司 | Light-emitting device |
-
2011
- 2011-10-24 CN CN2011103250255A patent/CN102434796A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547729U (en) * | 2009-11-24 | 2010-08-11 | 东莞市友美电源设备有限公司 | LED bulb cooling structure |
| CN202002053U (en) * | 2011-01-25 | 2011-10-05 | 惠州雷士光电科技有限公司 | Multi-stage heat radiation type light emitting diode (LED) lamp |
| CN201983042U (en) * | 2011-02-10 | 2011-09-21 | 鹤山市银雨照明有限公司 | Light-emitting diode (LED) lamp |
| CN202484632U (en) * | 2011-10-24 | 2012-10-10 | 深圳嘉信高能源技术股份有限公司 | Light-emitting device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913785A (en) * | 2012-09-19 | 2013-02-06 | 广东奥其斯科技有限公司 | LED bulb |
| CN104279439A (en) * | 2013-07-12 | 2015-01-14 | 展晶科技(深圳)有限公司 | LED (light emitting diode) lamp bulb |
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Application publication date: 20120502 |