CN202747286U - Radiator of LED (light-emitting diode) illuminating lamp - Google Patents
Radiator of LED (light-emitting diode) illuminating lamp Download PDFInfo
- Publication number
- CN202747286U CN202747286U CN2012203559080U CN201220355908U CN202747286U CN 202747286 U CN202747286 U CN 202747286U CN 2012203559080 U CN2012203559080 U CN 2012203559080U CN 201220355908 U CN201220355908 U CN 201220355908U CN 202747286 U CN202747286 U CN 202747286U
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- illuminating lamp
- led illuminating
- heat
- heat abstractor
- circuit board
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Abstract
The utility model discloses a radiator of an LED (light-emitting diode) illuminating lamp. The LED (light-emitting diode) illuminating lamp comprises a circuit board, wherein the radiator is connected with the circuit board; the radiator comprises a shell and a conductive element, wherein the conductive element is positioned in the shell, one end of the conductive element is connected with the shell, the other end of the conductive element, which extrudes out of the shell, is in contact with the circuit board, and the part between the shell and the conductive element is filled with phase-change materials. According to the design of the radiator, the size of the radiator of the LED illuminating lamp can be decreased so that the structural design of the LED illuminating lamp is more compact. Moreover, the radiator can efficiently avoids the partial overheat problem of the LED illuminating lamp.
Description
Technical field
The utility model relates to a kind of LED illuminating lamp, particularly a kind of heat abstractor of LED illuminating lamp.
Background technology
At present, at lighting field, the LED illuminating lamp has replaced incandescent lamp gradually, becomes the lighting source of main employing.Although the LED illuminating lamp has higher light energy use efficiency than incandescent lamp, in general, it also only can convert 15% to 20% of input power to luminous energy, and all the other input powers still can be converted to heat energy.The LED crystal grain of LED illuminating lamp belongs to semiconductor material, and non-refractory, the high temperature that heat energy accumulation produces not only can affect the service life of LED illuminating lamp, and can make the LED illuminating lamp in the work produce light decay, and affects illumination intensity.Therefore, the LED illuminating lamp all can configure heat abstractor usually, the heat energy that accumulates at work in order to transmit the LED illuminating lamp.The general practice is at the LED illuminating lamp fin of being made by metal material to be set, utilize the good thermal conductivity of metal material with the thermal energy transfer of LED accumulation in surrounding environment.But along with the raising of LED illuminating lamp power, the heat energy accumulation strengthens, and needs to adopt larger sized fin just can make the LED illuminating lamp maintain normal operating temperature range, and this not only increases cost, nor is beneficial to the structural design of LED illuminating lamp.
Summary of the invention
For solving the deficiencies in the prior art, the purpose of this utility model is: provide a kind of novel LED illuminating lamp heat abstractor to improve the defective of fin.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A kind of heat abstractor of LED illuminating lamp, wherein, the LED illuminating lamp comprises circuit board, heat abstractor is connected with this circuit board; Heat abstractor comprises housing and transport element, and transport element is arranged in housing, and the one end contacts with housing, and the other end protrudes from housing, contacts with circuit board, and is filled with phase-change material between housing and the transport element.
Wherein, as a kind of preferred mode, heat abstractor is pasted on the downside of circuit board by thermal conductive insulation glue.
Wherein, as a kind of preferred mode, housing is made of the first Heat Conduction Material, and transport element is made of the second Heat Conduction Material, and the thermal conductivity of the first Heat Conduction Material is less than the second Heat Conduction Material.
Wherein, as a kind of preferred mode, the first Heat Conduction Material is aluminium, and the second Heat Conduction Material is copper.
Wherein, as a kind of preferred mode, transport element is heat pipe.
Wherein, as a kind of preferred mode, phase-change material is Sodium acetate trihydrate.
Usefulness of the present utility model is: in the situation that same heat-sinking capability is provided, reduce the size of LED illuminating lamp heat abstractor, can make the structural design of LED illuminating lamp more compact; And can prevent effectively that the local pyrexia of LED illuminating lamp is excessive.
Description of drawings
Fig. 1 is the structure chart of the heat abstractor of LED illuminating lamp of the present utility model.
The implication of Reference numeral among the figure: 1-bulb, 2-chip, 3-base, 4-circuit board, 51-housing, 52-transport element, 53-phase-change material.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done concrete introduction.
As shown in Figure 1, LED illuminating lamp of the present utility model comprises bulb 1, chip 2, base 3, circuit board 4, and heat abstractor.Chip 2 is encapsulated in the bulb 1.Bulb 1 is connected with circuit board 4 by base 3.The downside of circuit board 4 connects heat abstractor.As a kind of preferred mode, heat abstractor can be pasted on by thermal conductive insulation glue the downside of circuit board 4.As the mode that those skilled in the art easily expect, heat abstractor can also be connected with circuit board 4 by the mode of screw or embedding.
Heat abstractor comprises housing 51 and transport element 52.Housing 51 is made of the first Heat Conduction Material, and transport element 52 is made of the second Heat Conduction Material, and the thermal conductivity of the second Heat Conduction Material is greater than the first Heat Conduction Material.As a kind of preferred mode, but the first Heat Conduction Material aluminium, and the second Heat Conduction Material can be selected copper.Transport element 52 is arranged in the housing 51 side by side, and the one side contacts with housing 51, and opposite side protrudes from housing 51, can contact with circuit board 4.As a kind of preferred mode, transport element 52 can be selected heat pipe.Space-filling between transport element 52 and the housing 51 has phase-change material 53.As a kind of preferred mode, phase-change material 53 can be selected Sodium acetate trihydrate.
When the LED illuminating lamp is worked, can accumulate gradually heat energy on the circuit board 4, these heats will pass to housing 51 by transport element 52, and then diffuse in the surrounding environment.When the heat energy accumulation of circuit board 4 too much, perhaps local pyrexia is excessive, when making the temperature of the transport element 52 of relevant position surpass the phase transition temperature of phase-change material 53, phase-change material 53 around the transport element 52 can receive the heat that can not in time disperse by phase transition process, thereby makes circuit board 4 maintain stable operating temperature range.On the other hand, by the heat exchange of housing 51 with surrounding environment, phase-change material 53 can carry out reverse phase transition process, thereby keeps the work phase.LED illuminating lamp heat abstractor of the present utility model takes full advantage of the structure space of heat abstractor by the combination of transport element 52 and phase-change material 53, has improved the radiating efficiency of heat abstractor unit volume; And utilize phase-change material 53 in phase transition process, can receive a large amount of thermal properties, can prevent effectively that the LED illuminating lamp from producing the excessive situation of local pyrexia.
Above demonstration and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in the protection domain of the present utility model.
Claims (6)
1. the heat abstractor of a LED illuminating lamp, described LED illuminating lamp comprises circuit board, described heat abstractor is connected with described circuit board, it is characterized in that: described heat abstractor comprises housing and transport element; Described transport element is arranged in described housing, and the one end contacts with described housing, and the other end protrudes from described housing, contacts with described circuit board; And be filled with phase-change material between described housing and the described transport element.
2. the heat abstractor of LED illuminating lamp according to claim 1, it is characterized in that: described heat abstractor is pasted on the downside of described circuit board by thermal conductive insulation glue.
3. the heat abstractor of LED illuminating lamp according to claim 1, it is characterized in that: described housing is made of the first Heat Conduction Material, and described transport element is made of the second Heat Conduction Material, and the thermal conductivity of described the first Heat Conduction Material is less than described the second Heat Conduction Material.
4. the heat abstractor of LED illuminating lamp according to claim 3, it is characterized in that: described the first Heat Conduction Material is aluminium, described the second Heat Conduction Material is copper.
5. the heat abstractor of LED illuminating lamp according to claim 1, it is characterized in that: described transport element is heat pipe.
6. the heat abstractor of LED illuminating lamp according to claim 1, it is characterized in that: described phase-change material is Sodium acetate trihydrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203559080U CN202747286U (en) | 2012-07-23 | 2012-07-23 | Radiator of LED (light-emitting diode) illuminating lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203559080U CN202747286U (en) | 2012-07-23 | 2012-07-23 | Radiator of LED (light-emitting diode) illuminating lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202747286U true CN202747286U (en) | 2013-02-20 |
Family
ID=47706676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203559080U Expired - Fee Related CN202747286U (en) | 2012-07-23 | 2012-07-23 | Radiator of LED (light-emitting diode) illuminating lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202747286U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777872A (en) * | 2012-07-23 | 2012-11-14 | 苏州晶雷光电照明科技有限公司 | Radiator of LED lamp |
-
2012
- 2012-07-23 CN CN2012203559080U patent/CN202747286U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777872A (en) * | 2012-07-23 | 2012-11-14 | 苏州晶雷光电照明科技有限公司 | Radiator of LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20130723 |