CN202484632U - Light-emitting device - Google Patents
Light-emitting device Download PDFInfo
- Publication number
- CN202484632U CN202484632U CN2011204072941U CN201120407294U CN202484632U CN 202484632 U CN202484632 U CN 202484632U CN 2011204072941 U CN2011204072941 U CN 2011204072941U CN 201120407294 U CN201120407294 U CN 201120407294U CN 202484632 U CN202484632 U CN 202484632U
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- Prior art keywords
- cavity
- light
- emitting device
- convection current
- intake section
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Abstract
The utility model relates to a light-emitting device, which comprises an accommodation cavity arranged at the central part of the light-emitting device, a convection cavity surrounding the accommodation cavity, and a light-emitting heat source body used for emitting light and arranged at the bottom of the accommodation cavity and the convection cavity. The lower part of the convection cavity is provided with a lower air inlet part, and the upper part of the convection cavity is provided with an upper air outlet part. The convection cavity comprises an inner-side cavity surrounding the accommodation cavity, and an outer-side cavity surrounding the inner-side cavity. The lower part of the inner-side cavity is provided with an inner air inlet part corresponding to the lower air inlet part. The top of the inner-side cavity is communicated with the upper air outlet part.
Description
Technical field
The utility model relates to a kind of light-emitting device, relates 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
The utility model technical problem to be solved is: provide a kind of cost lower, heat radiation better illumination equipment.
To this, the utility model 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 utility model 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 a kind of embodiment of the utility model;
Fig. 2 is that the outside of a kind of embodiment of the utility model is to flow diagram;
Fig. 3 is that the outside of a kind of embodiment of the utility model is to flow diagram;
Fig. 4 be a kind of embodiment of the utility model to flow diagram.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is 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 utility model 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 the further explain that combines concrete embodiment that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
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 |
|---|---|---|---|
| CN2011204072941U CN202484632U (en) | 2011-10-24 | 2011-10-24 | Light-emitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204072941U CN202484632U (en) | 2011-10-24 | 2011-10-24 | Light-emitting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484632U true CN202484632U (en) | 2012-10-10 |
Family
ID=46959053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204072941U Expired - Fee Related CN202484632U (en) | 2011-10-24 | 2011-10-24 | Light-emitting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484632U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434796A (en) * | 2011-10-24 | 2012-05-02 | 深圳嘉信高能源技术股份有限公司 | Light emitting device |
| CN103615707A (en) * | 2013-12-10 | 2014-03-05 | 宁波同泰电气股份有限公司 | LED bulb lamp |
-
2011
- 2011-10-24 CN CN2011204072941U patent/CN202484632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434796A (en) * | 2011-10-24 | 2012-05-02 | 深圳嘉信高能源技术股份有限公司 | Light emitting device |
| CN103615707A (en) * | 2013-12-10 | 2014-03-05 | 宁波同泰电气股份有限公司 | LED bulb lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20151024 |
|
| EXPY | Termination of patent right or utility model |