CN203099762U - Heat dissipation machine of light emitting diode (LED) bulb lamp - Google Patents
Heat dissipation machine of light emitting diode (LED) bulb lamp Download PDFInfo
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- CN203099762U CN203099762U CN2013200704284U CN201320070428U CN203099762U CN 203099762 U CN203099762 U CN 203099762U CN 2013200704284 U CN2013200704284 U CN 2013200704284U CN 201320070428 U CN201320070428 U CN 201320070428U CN 203099762 U CN203099762 U CN 203099762U
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- heat conduction
- aluminium
- conduction cover
- bulb lamp
- led bulb
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Abstract
A heat dissipation machine of a light emitting diode (LED) bulb lamp comprises an aluminum substrate, an aluminum heat conduction cover and a heat dissipation shell made of polymer composites. The aluminum substrate is fixed at one end of the aluminum heat conduction cover. The aluminum heat conduction cover is embedded in the heat dissipation shell made of the polymer composites. Heat quantity produced by an LED chip is transmitted to the aluminum heat conduction cover through the aluminum substrate and then transmitted to the outer surface of the heat dissipation shell made of the polymer composites through the aluminum heat conduction cover, and at last the heat quantity on the outer surface of the heat dissipation shell made of the polymer composites is diffused to environment in modes of convection current, thermal radiation and the like. Insulating treatment is additionally carried out on the heat dissipation machine of the LED bulb lamp through combination of aluminum and plastic , injection moulding can be directly carried out on the heat dissipation shell made of the polymer composites through a die, punch forming can be directly carried out on the aluminum heat conduction cover through a die, so that the heat dissipation machine of the LED bulb lamp is easy to machine, manufacturing cost is reduced, due to the fact that the thermal conductivity of the aluminum heat conduction cover is strong, the heat quantity can be fast transmitted to the heat dissipation shell made of the polymer composites, the thermal radiation coefficient of the heat dissipation shell made of the polymer composites is high, and the heat dissipation effect is strong.
Description
Technical field
The utility model relates to the LED field of illumination lamp technology, particularly relates to a kind of LED bulb lamp radiator.
Background technology
The LED bulb lamp is the novel green light source that substitutes the conventional incandescent bulb, has market value widely.Radiator is as a vitals in the LED bulb lamp, and the heat that is used for that led chip work is produced is derived fast and is dispersed in the environment, and the radiating effect of radiator directly has influence on the quality quality of LED bulb lamp.
General radiator is Aluminium Radiator or aluminium alloy system radiator, because the insulating properties of aluminium and aluminium alloy is relatively poor, for security needs increase insulating cement or encapsulating, and the thermal conductivity of insulating cement or encapsulating is generally relatively poor, influence radiating effect, simultaneously also increase cost, and the subsequent production cost of Aluminium Radiator or aluminium alloy system radiator is higher, environmental pollution is bigger.
The utility model content
Based on this, being necessary at the bad and cost of radiating effect provides a kind of LED bulb lamp radiator that addresses the above problem than problems such as height.
A kind of LED bulb lamp radiator comprises aluminium base, aluminium heat conduction cover and polymer composite system heat radiation shell, and described aluminium base is fixed in described aluminium heat conduction and overlaps an end, and described aluminium heat conduction cover is embedded in described polymer composite system heat radiation shell.
Among embodiment, described aluminium heat conduction cover is hollow round table shape structure therein.
Therein among embodiment, described aluminium heat conduction is overlapped an end and is circumferentially extended the back bending and be formed with gum box, and described aluminium base is fixed in described aluminium heat conduction cover by described gum box.
Among embodiment, described aluminium heat conduction cover is connected in described polymer composite system heat radiation shell near an end of described gum box by bolt therein.
Among embodiment, described aluminium heat conduction cover is the hollow circuit cylinder body structure therein.
Therein among embodiment, described polymer composite system heat radiation shell one end offers step trough, described aluminium heat conduction is overlapped an end and is closed with end cap, described end cap diameter is greater than described cylinder external diameter, described aluminium base fits in described end cap, and described aluminium base and described end cap all are connected to described step trough.
Therein among embodiment, described polymer composite system heat radiation shell comprises case and radiating fin, described aluminium heat conduction cover is embedded at described encloser inner wall, described radiating fin has a plurality of, described radiating fin all is axially set in described case outer wall, and axially is formed with the heat radiation groove between the described radiating fin.
Among embodiment, described radiating fin is a laminated structure therein, and described radiating fin is near the width of the described aluminium base one side width greater than opposite side, and described radiating fin by a side to the opposite side rounding off.
Therein among embodiment, the polymer composite system heat radiation shell that described polymer composite system heat radiation shell is a mold injection molding.
Among embodiment, described aluminium heat conduction cover is punching press aluminium formula aluminium heat conduction cover or punching press aluminium alloy formula aluminium heat conduction cover therein.
Above-mentioned LED bulb lamp radiator, by aluminium base being fixed in aluminium heat conduction cover, and aluminium heat conduction cover is embedded in polymer composite system heat radiation shell, the heat that led chip produces conducts to aluminium heat conduction cover by aluminium base earlier, conduct to polymer composite system heat radiation shell outer surface by aluminium heat conduction cover then, the heat of last polymer composite system heat radiation shell outer surface is dispersed in the environment by modes such as convection current and heat radiations.LED bulb lamp radiator by the plastic-aluminum combination like this, because polymer composite system heat radiation shell light specific gravity, environmental protection, good insulating and the insulation processing that needn't increase in addition, and polymer composite system heat radiation shell can directly pass through mold injection molding, aluminium heat conduction cover can directly pass through the mould punch forming, be easy to processing, reduced manufacturing cost, can conduct heat fast to polymer composite system heat radiation shell because aluminium heat conduction cover thermal conductivity is strong simultaneously, and the heat emissivity coefficient height of polymer composite system heat radiation shell, radiating effect is strong.
Description of drawings
Fig. 1 is the structural representation of LED bulb lamp radiator;
Fig. 2 is the internal structure schematic diagram of an embodiment of LED bulb lamp radiator;
Fig. 3 is the internal structure schematic diagram of another embodiment of LED bulb lamp radiator.
The specific embodiment
See also Fig. 1 and Fig. 2, a kind of LED bulb lamp radiator 100, comprise aluminium base 110, aluminium heat conduction cover 120 and polymer composite system heat radiation shell 130, described aluminium base 110 is fixed in described aluminium heat conduction and overlaps 120 1 ends, and described aluminium heat conduction cover 120 is embedded in described polymer composite system heat radiation shell 130.
Particularly, aluminium base 110 1 face down bondings are connected to led chip, and opposite side is fixed in aluminium heat conduction and overlaps 120 1 ends.When LED lamp bulb lamp was worked, the heat that led chip produces conducted heat to aluminium base 110 by contact, and the heat of aluminium base 110 conducts heat to aluminium heat conduction cover 120 by contact.The equal cocoa of the structure of aluminium base 110, processing technology and operation principle adopts existing technology, introduces no longer in detail here.
Described aluminium heat conduction cover 120 can be hollow round table shape structure.Described aluminium heat conduction is overlapped 120 1 ends and is circumferentially extended back bending and be formed with gum box 140, and described aluminium base 110 is fixed in described aluminium heat conduction cover 120 by described gum box 140, the other end extend axially and the polymer composite system of embedding heat radiation shell 130 in.Aluminium base 110 is covered on an end of aluminium heat conduction cover 120, and the setting of gum box 140 makes aluminium base 110 effectively be fixed in aluminium heat conduction cover 120, thereby realizes that aluminium base 110 closely is connected with aluminium heat conduction cover 120.The degree of depth of gum box 140 is generally 1.5 millimeter, and with suitable with the thickness of aluminium base 110, thereby aluminium heat conduction cover 120 can more effective fixedly aluminium base 110.By tight be connected of aluminium base 110 with aluminium heat conduction cover 120, can realize the seamless link between led chip and the aluminium heat conduction cover 120 effectively, the heat that aluminium base 110 more promptly comes led chip conduction conduction is rapidly given aluminium heat conduction cover 120, reduce thermal contact resistance, the heat that led chip is produced is effectively derived long service life in time.
See also Fig. 2, among embodiment, described aluminium heat conduction cover 120 can also be connected in described heat radiation shell by bolt 150 near ends of described gum boxs 140 therein.Thereby aluminium heat conduction cover 120 more closely is connected in polymer composite system heat radiation shell 130, and can be by contact area between bolt 150 increases and the polymer composite system heat radiation shell 130, improve heat transfer efficiency, more effectively with heat transferred polymer composite system heat radiation shell 130, radiating effect is better.
Described aluminium heat conduction cover 120 is punching press aluminium formula aluminium heat conduction cover 120 or punching press aluminium alloy formula aluminium heat conduction cover 120.Be that aluminium heat conduction cover 120 can adopt aluminium and aluminum alloy materials, be stamped to form that processing technology is simple, reduces cost by mould.Punching press aluminium thermal conductivity factor is more than the 150W-210W/m.K, good heat conduction effect.
See also Fig. 3, in another embodiment, aluminium heat conduction cover 220 can be the hollow circuit cylinder body structure.Described polymer composite system heat radiation shell 230 1 ends offer step trough 238, described aluminium heat conduction is overlapped 220 1 ends and is closed with end cap 222, described end cap 222 diameters are greater than described cylinder external diameter, described aluminium base 210 fits in described end cap 222, and described aluminium base 210 all is connected to described step trough 238 with described end cap 222.Aluminium heat conduction cover 220 and end cap 222 are one-body molded, can be one by the mould type of being stamped to form.But aluminium base 210 fits tightly in end cap 222 by glue, thus more effective aluminium heat conduction cover 220 that is fixed in, and behind the heat transferred aluminium base 210 that led chip produces, aluminium base 210 is rapidly with heat transferred aluminium heat conduction cover 220.Aluminium base 210 embeds in the polymer composite system heat radiation shell 230 in the lump with aluminium heat conduction cover 220, and end cap 222 edges and aluminium base 110 edges all are connected to step trough 238 inwalls, realize that aluminium base 210 and aluminium heat conduction cover 220 closely is connected in the polymer composite system heat radiation shell 230, aluminium base 210 can not only transmit heat and give aluminium heat conduction cover 220, also can directly transmit heat in polymer composite system heat radiation shell 230, and more effectively heat is dispersed into surrounding environment, long service life.
Other structures, processing technology and the operation principles etc. of the LED bulb lamp radiator 200 in the present embodiment are identical with LED bulb lamp radiator 100 among the embodiment shown in Figure 2.
Be understandable that aluminium heat conduction cover can also be other structures such as prism, realizing better being embedded in macromolecular material system heat radiation shell, and transmit heat effectively and get final product.
See also Fig. 1 to Fig. 3, described polymer composite system heat radiation shell 130 comprises case 134 and radiating fin 132, described aluminium heat conduction cover 120 is embedded at described case 134 inwalls, described radiating fin 132 has a plurality of, described radiating fin 132 all is axially set in described case 134 outer walls, and axially is formed with heat radiation groove 136 between the described radiating fin 132.Aluminium heat conduction cover 120 is embedded in case 134 inwalls, thereby the shape and structure of case 134 cooperates aluminium heat conduction cover 120 and the structure that takes on a different shape, be round table-like such as cooperating aluminium heat conduction to overlap 120 frustum cone structure, easily can cooperate the cylindrical structure of aluminium heat conduction cover 120 and be cylindrical shape etc.Polymer composite system heat radiation shell 130 two ends exceed aluminium heat conduction cover 120, so that the miscellaneous part of LED bulb lamp connects.The heat that led chip produces reaches polymer composite system heat radiation shell 130 by aluminium base 110 and aluminium heat conduction cover 120, increase area of dissipation by radiating fin 132 and heat radiation groove 136, thereby improve the heat-sinking capability and the thermal radiation capability of free convection, in time heat is distributed in the surrounding environment, reduce polymer composite system heat radiation shell 130 surface temperatures, improve service life.
Described radiating fin 132 is a laminated structure, and described radiating fin 132 is near the width of the described aluminium base 110 1 sides width greater than opposite side, and described radiating fin 132 by a side to the opposite side rounding off.Radiating fin 132 can be parabolic shape.The thickness of radiating fin 132 can be identical, also can adjust as required.The sheet number of radiating fin 132 also can be selected as the case may be.Because the heat that led chip produces is transmitted to aluminium base 110 earlier, transmit heat by aluminium base 110 again and give aluminium heat conduction cover 120, transmit heat in polymer composite system heat radiation shell 130 by aluminium heat conduction cover 120 at last, the gathering heat of polymer composite system heat radiation shell 130 1 sides of close led chip is higher than opposite side, thereby the width of radiating fin 132 close aluminium base 110 1 sides is greater than opposite side, area of dissipation is bigger, more heat can be distributed.By this set of radiating fin 132, the heat that can balancedly led chip be produced is dispersed in the surrounding environment, and the while is economical with materials again, reduces cost.
The polymer composite system heat radiation shell 130 that described polymer composite system heat radiation shell 130 is a mold injection molding.Can pass through injection machine machine-shaping, good looking appearance, style can be changeable.Thisly be easy to moulding by formed in mould polymer composite system heat radiation shell 130, manufacturing process is simple, and cost of manufacture is low, good insulation preformance, perfect heat-dissipating, light weight, good insulation preformance, fire-retardant, environmental protection authenticates by ROHS, and the surface is breakdown voltage resistant to be more than the 4000V.
Above-mentioned LED bulb lamp radiator 100, by aluminium base 110 being fixed in aluminium heat conduction cover 120, and aluminium heat conduction cover 120 is embedded in polymer composite system heat radiation shell 130, the heat that led chip produces conducts to aluminium heat conduction cover 120 by aluminium base 110 earlier, conduct to polymer composite system heat radiation shell 130 outer surfaces by aluminium heat conduction cover 120 then, the heat of last polymer composite system heat radiation shell 130 outer surfaces is dispersed in the environment by modes such as convection current and heat radiations.LED bulb lamp radiator 100 by the plastic-aluminum combination like this, because polymer composite system heat radiation shell 130 light specific gravities, environmental protection, good insulating and the insulation processing that needn't increase in addition, and polymer composite system heat radiation shell 130 can directly pass through mold injection molding, aluminium heat conduction cover 120 can directly pass through the mould punch forming, be easy to processing, reduced manufacturing cost, because overlapping 120 thermal conductivity, aluminium heat conduction can conduct heat by force fast simultaneously to polymer composite system heat radiation shell 130, and the heat emissivity coefficient height of polymer composite system heat radiation shell 130, radiating effect is strong.
LED bulb lamp radiator 100 by the plastic-aluminum combination, the die casting aluminium radiator low about 1/3rd that its weight ratio is identical shaped, and needn't increase insulation processing, effectively reduced the assembling procedure and the cost of LED bulb lamp, and LED bulb lamp radiator 100 surfaces of plastic-aluminum combination are better than the aluminium radiator of identical appearance to the heat loss through radiation effect of environment.The LED bulb lamp radiator 100 of above-mentioned plastic-aluminum combination, not only good heat dissipation effect, and cost is low, is suitable for promoting the use of.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a LED bulb lamp radiator is characterized in that, comprises aluminium base, aluminium heat conduction cover and polymer composite system heat radiation shell, and described aluminium base is fixed in described aluminium heat conduction and overlaps an end, and described aluminium heat conduction cover is embedded in described polymer composite system heat radiation shell.
2. LED bulb lamp radiator according to claim 1 is characterized in that, described aluminium heat conduction cover is hollow round table shape structure.
3. LED bulb lamp radiator according to claim 2 is characterized in that, described aluminium heat conduction is overlapped an end and circumferentially extended back bending and be formed with gum box, and described aluminium base is fixed in described aluminium heat conduction cover by described gum box.
4. LED bulb lamp radiator according to claim 3 is characterized in that, described aluminium heat conduction cover is connected in described polymer composite system heat radiation shell near an end of described gum box by bolt.
5. LED bulb lamp radiator according to claim 1 is characterized in that, described aluminium heat conduction cover is the hollow circuit cylinder body structure.
6. LED bulb lamp radiator according to claim 5, it is characterized in that, described polymer composite system heat radiation shell one end offers step trough, described aluminium heat conduction is overlapped an end and is closed with end cap, described end cap diameter is greater than described cylinder external diameter, described aluminium base fits in described end cap, and described aluminium base and described end cap all are connected to described step trough.
7. according to any described LED bulb lamp radiator of claim 1 to 6, it is characterized in that, described polymer composite system heat radiation shell comprises case and radiating fin, described aluminium heat conduction cover is embedded at described encloser inner wall, described radiating fin has a plurality of, described radiating fin all is axially set in described case outer wall, and axially is formed with the heat radiation groove between the described radiating fin.
8. LED bulb lamp radiator according to claim 7, it is characterized in that, described radiating fin is a laminated structure, and described radiating fin is near the width of the described aluminium base one side width greater than opposite side, and described radiating fin by a side to the opposite side rounding off.
9. LED bulb lamp radiator according to claim 8 is characterized in that, the polymer composite system heat radiation shell that described polymer composite system heat radiation shell is a mold injection molding.
10. LED bulb lamp radiator according to claim 8 is characterized in that, described aluminium heat conduction cover is punching press aluminium formula aluminium heat conduction cover or punching press aluminium alloy formula aluminium heat conduction cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200704284U CN203099762U (en) | 2013-02-06 | 2013-02-06 | Heat dissipation machine of light emitting diode (LED) bulb lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200704284U CN203099762U (en) | 2013-02-06 | 2013-02-06 | Heat dissipation machine of light emitting diode (LED) bulb lamp |
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| CN203099762U true CN203099762U (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200704284U Expired - Fee Related CN203099762U (en) | 2013-02-06 | 2013-02-06 | Heat dissipation machine of light emitting diode (LED) bulb lamp |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557506A (en) * | 2013-10-31 | 2014-02-05 | 苏州东亚欣业节能照明有限公司 | Radiating structure of LED (light-emitting diode) lamp |
| CN104703441A (en) * | 2013-12-10 | 2015-06-10 | 胜华科技股份有限公司 | Heat radiation seat |
| CN105135239A (en) * | 2015-08-07 | 2015-12-09 | 苏州晶雷光电照明科技有限公司 | LED lamp with arc cooling fins |
| CN106439757A (en) * | 2016-10-11 | 2017-02-22 | 夏孔能 | LED lamp cooling structure |
| CN106500069A (en) * | 2015-09-06 | 2017-03-15 | 胡祖华 | LED lamp is heat radiator dedicated |
-
2013
- 2013-02-06 CN CN2013200704284U patent/CN203099762U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557506A (en) * | 2013-10-31 | 2014-02-05 | 苏州东亚欣业节能照明有限公司 | Radiating structure of LED (light-emitting diode) lamp |
| CN104703441A (en) * | 2013-12-10 | 2015-06-10 | 胜华科技股份有限公司 | Heat radiation seat |
| CN105135239A (en) * | 2015-08-07 | 2015-12-09 | 苏州晶雷光电照明科技有限公司 | LED lamp with arc cooling fins |
| CN106500069A (en) * | 2015-09-06 | 2017-03-15 | 胡祖华 | LED lamp is heat radiator dedicated |
| CN106439757A (en) * | 2016-10-11 | 2017-02-22 | 夏孔能 | LED lamp cooling structure |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20180206 |