CN202002058U - Heat-radiating device for lamp apparatus and LED lamp apparatus including same - Google Patents
Heat-radiating device for lamp apparatus and LED lamp apparatus including same Download PDFInfo
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- CN202002058U CN202002058U CN2011200737503U CN201120073750U CN202002058U CN 202002058 U CN202002058 U CN 202002058U CN 2011200737503 U CN2011200737503 U CN 2011200737503U CN 201120073750 U CN201120073750 U CN 201120073750U CN 202002058 U CN202002058 U CN 202002058U
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- led light
- heat
- light fixture
- heat abstractor
- pillar
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Abstract
The utility model provides a heat-radiating device for a lamp apparatus, which comprises a base and a plurality of supporting legs. The base is in heat-conducting connection with a heat source; the supporting legs extend from the base and are spaced; and the supporting legs surround and define a hollow cavity body, so that a plurality of gaps are formed on the lateral peripheral surface of the cavity body. The heat-radiating device has the advantages of good heat-radiating effect, compact structure, small volume, light weight, saving of production material cost and the like. The utility model further relates to an LED lamp apparatus including the heat-radiating device.
Description
Technical field
The utility model relates to field of illuminating lamps.More particularly, the utility model relates to a kind of LED lighting that is used for the heat abstractor of light fixture and comprises described heat abstractor, the radiating efficiency height of this heat abstractor, advantages of compact and light structure.
The utility model background
LED is as a kind of solid luminescence light source with great development potentiality, and advantage is subjected to people more and more pays close attention to so that its life-span length, sound construction, low-power consumption and appearance and size is flexible etc.In recent years, the LED light fixture becomes more and more cheap, therefore replaces traditional lamp applications gradually at various lighting fields.But, this caloric value when work of LED lamp is bigger, if these heats can't distribute in time, the temperature of led light source is raise gradually, the temperature range that exceeds its steady operation, can influence the properties of product and the service life of led light source greatly, so limited the range of application of LED lamp to a certain extent at lighting field.
People have proposed the heat dissipation problem of the whole bag of tricks trial solution LED light fixture.General way is to be provided with initiatively or the passive heat radiation device comes the cooling LED light source at the LED light fixture, to reach its preferable operating temperature.But, for the passive heat radiation device, in order to improve radiating efficiency, the size that often needs to increase heat abstractor is to increase its area of dissipation, and this makes the volume of LED light fixture increase, and weight increases.Adopt active heat abstractor, fan for example, though can reduce the size of heat abstractor to a certain extent, active heat abstractor also exists noise big, power consumption is higher, and the productive set ash is given birth to easily.
At present, the heat abstractor that generally adopts generally includes cylinder with continuous lateral circle surface and a plurality of fin that form on this continuous lateral circle surface.The heat that led light source produces is brought in the air in the cross-ventilation mode by these fin, also is distributed in the ambient air in the mode of radiations heat energy simultaneously.Increase area of dissipation, more fin need be set usually or by improving the structure of fin, to obtain better radiating effect.
For example, China utility model patent ZL200720122176.X, the utility model patent that name is called " a kind of radiator of LED lamp and LED lamp " discloses a kind of radiator that comprises some fin, the center of arbitrary fin exists A, B at 2 in the described radiator cross section, and these 2 central points with the radiator cross section form triangle.The structure of this radiator is compared with vertical bar dentation radiator, and its area of dissipation increases, and has accelerated radiating rate.But this radiator not only uses more material to make fin, and the volume of radiator is bigger, causes the LED lamp to become very heavy.
Another Chinese invention patent application number 201010177036.9, the application for a patent for invention that name is called " a kind of heat abstractor and the LED light fixture that utilizes this heat abstractor " discloses a kind of heat abstractor, this heat abstractor comprises by cylindricality heat radiation matrix and is located at the radiator that heat radiation matrix radiating fin is all around formed, and air flue with central through hole, described air flue is fixedly connected on the side end face of radiator, through hole is used for the cross-ventilation heat radiation perpendicular to the end face of radiator.This heat abstractor is owing to the air passage structure that has adopted the cross-ventilation heat radiation, so increased the radiating efficiency of radiator.But the volume that is arranged so that the LED light fixture of air passage structure becomes quite big, and manufacturing cost increases.
Existing LED light fixture is complicated because radiator structure is heavy, causes the volume of light fixture bigger, and manufacturing process is complicated.Therefore, have and need the heat abstractor of the LED light fixture of lighting field be made improvements, can improve the usefulness of heat radiation, make light fixture keep stable duty, again can implementation structure compact and light and handy.
The utility model content
The purpose of this utility model is to overcome above-mentioned shortcoming of the prior art, a kind of heat abstractor of novelty is provided, this heat abstractor can solve the heat dissipation problem of LED light fixture effectively, have good heat dissipation effect, compact conformation, volume little, in light weight, save advantage such as raw materials for production cost.
The purpose of this utility model is achieved through the following technical solutions, and a kind of heat abstractor that is used for light fixture is provided, and it is characterized in that described heat abstractor comprises:
Base portion, but described base portion is connected with the heat conduction of thermal source do; And
A plurality of isolated pillars that extend from described base portion, described pillar centers on and limits the cavity of a hollow, so that form a plurality of gaps on the lateral circle surface of described cavity.
In the utility model one embodiment, described base portion in the form of a ring and have first end face, described a plurality of pillars vertically or obliquely extend from described first end face.In another embodiment of the present utility model, described ring-type base portion has second end face, a plurality of second pillars vertically or obliquely extend from described second end face, described second pillar centers on and limits second cavity of a hollow, so that form a plurality of gaps on the lateral circle surface of described second cavity.
Described heat abstractor also comprises the supporting member of the inside that is arranged on described ring-type base portion, is used to carry the fixture of led light source and fixing described led light source.The inwall of described supporting member and described ring-type base portion is spirally connected, clamping or one-body molded.
The free end of described a plurality of pillars can be inside a little or outwardly-bent, so that be resisted against on the jobbie, can not move.
The utility model also relates to a kind of LED light fixture on the other hand, comprise at least one led light source, can be inserted on the bulb socket and the lamp holder that is connected with power supply, control circuit and hold the bonnet of described control circuit, described LED light fixture also comprises heat abstractor of the present utility model, but described led light source is done heat conduction with the base portion of described heat abstractor and is contacted, and described bonnet at least a portion of having held control circuit is received in the cavity that is limited by described a plurality of pillars.
Separate 1mm at least between the inner surface of described pillar and the outer surface of described bonnet, it is wandering hot that described pillar and cold air are on every side opposed.
In the utility model one preferred embodiment, the LED light fixture is a reflectoscope, radiator comprises a plurality of isolated first pillar and a plurality of isolated second pillar that extends respectively from first end face of base portion and second end face, and described first pillar and described second pillar are respectively around first cavity and second cavity that limit hollow.Wherein said bonnet at least a portion of having held control circuit is received in first cavity, and at least a portion of described reflector is received in second cavity.Preferably, the shape and size of described second cavity are made with described reflector and are matched, so that described reflector fully is received in described second cavity.Separate 1mm at least between the inner surface of described first pillar and the outer surface of described bonnet, the 1mm at least of being separated by between the inner surface of described second pillar and the outer surface of described reflector, it is wandering hot that described pillar and cold air are on every side opposed.
In another preferred embodiment of the utility model, described light fixture comprises two heat abstractors of the present utility model, and the base portion of described two heat abstractors is fixed together, and the pillar of two radiators is towards on the contrary.The cavity of one of them radiator is used to admit at least a portion bonnet and control circuit, and the cavity of another radiator is used to admit at least a portion reflector.The 1mm at least of being separated by between the outer surface of the inner surface of the pillar of described radiator and described reflector and described bonnet.
Described heat abstractor can comprise that one is arranged on the supporting member of the inside of described base portion, and described led light source is installed on the described supporting member, and perhaps described led light source is fixed on the heat-transfer device, and described heat-transfer device is installed on the described supporting member.
Preferably, the free end of the pillar of described heat abstractor is inside a little or outwardly-bent, so that described free end is resisted against on the outer surface of described bonnet, is maintained fixed motionless.
But heat abstractor is made by Heat Conduction Material, and described bonnet is made by non-conducting material.But Heat Conduction Material can be selected from aluminium, aluminium alloy, pottery, heat-conducting plastic or graphite.Non-conducting material can be plastics or glass.
Owing to saved the cylinder of the continuous lateral circle surface that existing radiator has and the fin that on lateral circle surface, forms in the heat abstractor of the present utility model, adopted by a plurality of isolated pillars around the cavity that forms hollow, this cavity has many interspaces, helps circulation of air.Particularly, the hot-air that has absorbed in the cavity of heat abstractor from the heat of led light source can spread out by described many interspaces, and cold air can replenish again subsequently, therefore reaches the purpose of cross-ventilation quick heat radiating, has improved radiating efficiency greatly.In addition, such heat spreader structures is simple, and is in light weight, and volume is little, saved a large amount of costs of material.
Be described further below with reference to the technique effect of accompanying drawing, to understand the purpose of this utility model, feature and effect fully design of the present utility model, concrete structure and generation.
Description of drawings
Figure 1 shows that the stereogram of the heat abstractor of the utility model one embodiment.
Figure 2 shows that the front view of heat abstractor shown in Figure 1.
Figure 3 shows that the upward view of heat abstractor shown in Figure 1.
Figure 4 shows that the vertical view of heat abstractor shown in Figure 1.
Figure 5 shows that the stereogram of the LED lamp of the utility model first embodiment.
Figure 6 shows that the decomposing schematic representation of LED lamp shown in Figure 5.
Figure 7 shows that the stereogram of the LED reflectoscope of the utility model second embodiment.
Figure 8 shows that the decomposing schematic representation of LED reflectoscope shown in Figure 7.
The specific embodiment
Referring to figs. 1 through Fig. 4, there is shown heat abstractor 100 as the utility model one preferred embodiment, described heat abstractor 100 comprises the base portion 110 with first end face 112 and second end face 114, and a plurality of isolated pillar 120 that vertically extends from first end face 112 of described base portion 110.Certainly, described pillar also can be from first end face 112 of described base portion 110 obliquely or become the extension of curve ground.In the present embodiment, described base portion in the form of a ring, described pillar is made rectangular cylinder.Certainly, described base portion and described pillar can be Any shape, and for example described pillar can be made cylindric.
As shown in the figure, described a plurality of isolated pillars 120 around and limit the cavity 122 of a hollow, form a plurality of gaps 126 on the lateral circle surface that constitutes by described a plurality of pillars of described cavity.Gap between the cross-sectional area of described pillar and adjacent two pillars is determined according to the size of light fixture.The cross-sectional area of pillar had better not be too little, otherwise do not reach heat-conducting effect preferably; In addition, the gap between two pillars is also too little, otherwise can influence the circulation and the thermal convection current effect of air.
The free end 124 of pillar 120 can be inside a little or outwardly-bent, and like this, when heat abstractor 100 was installed in light fixture, free end 124 can be against promptly at the miscellaneous part of light fixture, and it is motionless to make radiator be maintained fixed.This will remake hereinafter and go through.
As a kind of modification, extend a plurality of isolated second pillars from second end face 114 of described base portion 110, described second pillar centers on and limits second cavity of a hollow, so that form a plurality of gaps (not shown) on the lateral circle surface of described second cavity.This structure increases the variation of Design of Luminaires, can be according to actual needs or designing requirement, the different parts of light fixture are installed in respectively in two different cavitys of heat abstractor.
See also Fig. 1, Fig. 3 and Fig. 4, heat abstractor 100 also comprises the supporting member 130 of the inside that is arranged on base portion 110, and described supporting member 130 is made up of the boss 134 of bottom 132 and 132 extensions from the bottom.Bottom 132 can be spirally connected with the inwall of base portion 110 or clamping and being fixed together.Certainly, bottom 132 and boss 134 also can be done with base portion 110 one-body molded.The center of boss 134 is provided with a square depressed area 136, and one or more led light source can directly be fixed on the described depressed area 136.Perhaps, one or more led light source is fixed on the light source panel, this light source panel is fixed on the described depressed area 136 again.The another kind of selection be, one or more led light source is fixed on the light source panel, and this light source panel is fixed on the heat-transfer device of light source, and heat-transfer device that again will this affixed led light source is fixed on the described depressed area 136.These are known to those skilled in the art, do not do detailed description herein.
But the base portion 110 of heat abstractor, pillar 120 and supporting member 130 be all by the Heat Conduction Material manufacturing, for example aluminium, aluminium alloy, pottery, heat-conducting plastic or graphite.Like this, be installed in the heat that led light source when work of depressed area 136 produces, will be transmitted to pillar 120, pillar 120 is generated heat, make the ambient air heating after pillar 120 is heated through supporting member 130 and base portion 110.Because there is gap 126 in heat abstractor, hot-air can spread out by described many interspaces 126, and cold air can replenish again subsequently after the hot-air diffusion, thereby has quickened the convection current of air, has increased radiating effect.
Fig. 5 and Fig. 6 show the LED lamp 200 of the utility model first embodiment, and described LED lamp 200 comprises heat abstractor 100 recited above.LED lamp 200 also comprises glass envelope 210, led light source 220, bonnet 230 and lamp holder 240 and control circuit (not shown).
The inner surface of the outer surface of the housing 232 of bonnet 230 and the pillar 120 of heat abstractor 100 separates, and preferably separates 1mm at least.By this, define a space between housing 232 and pillar 120, described space more helps the convection current of air, makes hot-air to distribute more quickly.
But light source panel 250, heat abstractor 100 are preferably selected the material of heat conduction for use, for example aluminium, aluminium alloy, pottery, heat-conducting plastic or graphite.
Be close on the supporting member 130 of heat abstractor 100 owing to be fixed with the light source panel 250 of led light source, supporting member 130 forms heat conduction with the base portion 110 of heat abstractor and is connected, and the heat that led light source is produced is transmitted to a plurality of pillars 120 by this.Hot-air in the space that housing 232 and pillar 120 limit distributes apace by many interspaces 126, cold air can replenish again subsequently, make radiating effect improve widely, thereby reduced the temperature of led light source, solved the heat dissipation problem of LED light fixture effectively.
Fig. 7 and Fig. 8 show the LED lamp 300 of the utility model second embodiment, and described LED lamp 300 is a kind of reflectoscopes, comprises heat abstractor 370.LED lamp 300 also comprises sheet glass 310, reflector 320, heat-conducting plate 330, led light source 380, bonnet 340, lamp holder 350 and control circuit 360.
The design of led light source 380, reflector 320 and heat-conducting plate 330 can be with reference to the specification of another Chinese patent application of the applicant numbers 200910002486.1, and its full content is included in herein as a reference.
The radiator 370 of present embodiment is a kind of modification of the radiator 100 of top first embodiment.Particularly, first end face and second end face from the base portion of radiator extends a plurality of isolated first pillars 372 and a plurality of isolated second pillar 374 respectively.Described first pillar 372 centers on and limits first cavity of hollow, and described second pillar 374 centers on and limit second cavity of hollow.
As shown in the figure, first cavity that first pillar 372 limits is cylindrical, and is the same with above-described embodiment, is used to admit a part of bonnet 340 and the control circuit 360 that is contained in the bonnet 340.Similarly, the inner surface of the outer surface of the housing of bonnet 340 and first pillar 372 separates 1mm at least, is beneficial to the convection current of air, makes hot-air to distribute more quickly.
In the present embodiment, the longitudinal section of second pillar 374 is fan-shaped, limits flaring second cavity.This is in order to match with flaring reflector 320, to make reflector 320 fully be contained in described second cavity.Also separate at the outer surface of reflector 320 and the inner surface of second pillar 374, preferably separate 1mm at least.By this, define a space between the reflector 320 and second pillar 374, described space increases the convection current of air, accelerates distributing of hot-air.
The heat-conducting plate 330 that is connected with led light source 380 and light source panel is inserted into described reflector inside by the groove of reflector 320 bottoms, is fixed on the depressed area of supporting member of heat abstractor again.In the present embodiment, heat-conducting plate 330 is arranged to the central vertical shaft line overlap of its central vertical axis and reflector 320.This design can obtain uniform light quantity and higher brightness of illumination.
Present embodiment closely contacts led light source 380 and light source panel thereof with heat-conducting plate 330, heat-conducting plate is connected as a single entity again by the groove of reflector bottom and the base portion of heat abstractor, the heat that produces when therefore led light source is worked is transmitted to first pillar 372 and second pillar 374 by the base portion of light source panel-heat-conducting plate-heat abstractor, make first pillar 372 and 374 heatings of second pillar, make the ambient air heating after pillar is heated.Because all have the gap between first pillar 372 and second pillar 374, hot-air can spread out by described many interspaces, cold air can replenish again subsequently after the hot-air diffusion, thereby has quickened the convection current of air.Because present embodiment is provided with first pillar 372 and second pillar 374, has correspondingly increased radiating effect, has further reduced the temperature of led light source.
According to the utility model, another kind of modification is that the LED light fixture also comprises two as the described radiator 100 of first embodiment, the base portion of these two heat abstractors be fixed together and pillar separately towards on the contrary, the cavity of one of them radiator is used to admit bonnet and control circuit, and the cavity of another radiator is used to admit reflector and heat-conducting plate.
Therefore, the utility model provides a kind of heat abstractor of light fixture, and its cavity around forming, has been save a large amount of raw material of preparation radiator cylinder by a plurality of isolated pillars, and simple and compact for structure, in light weight, volume is little.Adopt the LED lamp of this heat abstractor, not only radiating effect is strengthened widely, the luminous efficiency of led light source is improved, and prolong service life, and volume also can be done very for a short time.When the miscellaneous part of the inner surface of the pillar of heat abstractor and light fixture separates at least 1mm, the better heat-radiation effect of this light fixture.
Though described several preferred embodiment of the present utility model in conjunction with the accompanying drawings, the utility model should not be restricted to and above description and identical structure of accompanying drawing and operation.Concerning those skilled in the art; under the situation that does not exceed the utility model design and scope, also can make many improvement and variation, but these improvement and variation all should belong to the claimed scope of the utility model to the foregoing description by logical analysis, reasoning, or a limited experiment.
Claims (19)
1. a heat abstractor that is used for light fixture is characterized in that, described heat abstractor comprises:
Base portion, but described base portion is connected with the heat conduction of thermal source do; And
A plurality of isolated pillars that extend from described base portion, described pillar centers on and limits the cavity of a hollow, so that form a plurality of gaps on the lateral circle surface of described cavity.
2. heat abstractor as claimed in claim 1 is characterized in that, described base portion in the form of a ring and have first end face, described a plurality of pillars vertically or obliquely extend from described first end face.
3. heat abstractor as claimed in claim 2, it is characterized in that, described ring-type base portion has second end face, a plurality of second pillars vertically or obliquely extend from described second end face, described second pillar centers on and limits second cavity of a hollow, so that form a plurality of gaps on the lateral circle surface of described second cavity.
4. heat abstractor as claimed in claim 2 is characterized in that described heat abstractor also comprises the supporting member of the inside that is arranged on described ring-type base portion, is used to carry the fixture of light source and fixing described light source.
5. heat abstractor as claimed in claim 4 is characterized in that, the inwall of described supporting member and described ring-type base portion is spirally connected, clamping or one-body molded.
6. heat abstractor as claimed in claim 1 is characterized in that the free end of described pillar is inside a little or outwardly-bent.
7. LED light fixture, comprise at least one led light source, can be inserted on the bulb socket and the lamp holder that is connected with power supply, control circuit, bonnet and hold the bonnet of described control circuit, it is characterized in that, described LED light fixture also comprises as any one described heat abstractor in the claim 1 to 6, but described led light source is done heat conduction with the base portion of described heat abstractor and is contacted, and described bonnet at least a portion of having held control circuit is received in the cavity that is limited by described a plurality of pillars.
8. LED light fixture as claimed in claim 7 is characterized in that, separates 1mm at least between the inner surface of described pillar and the outer surface of described bonnet.
9. LED light fixture as claimed in claim 7, it is characterized in that, described radiator is the described radiator of claim 3, described light fixture also comprises reflector, wherein said bonnet at least a portion of having held control circuit is received in the cavity that is limited by described a plurality of pillars, at least a portion of described reflector be received in described second pillar around and second cavity that limits in.
10. LED light fixture as claimed in claim 9 is characterized in that, separates 1mm at least between the inner surface of described pillar and the outer surface of described bonnet, the 1mm at least of being separated by between the inner surface of described second pillar and the outer surface of described reflector.
11. LED light fixture as claimed in claim 9 is characterized in that the free end of described second pillar is inside a little or outwardly-bent, so that described free end is resisted against on the outer surface of described reflector.
12. LED light fixture as claimed in claim 7, it is characterized in that, described light fixture also comprises second as any one described heat abstractor and reflector in the claim 1 to 6, the base portion of wherein said two heat abstractors is fixed together and towards on the contrary, at least a portion of described reflector is received in the cavity of described second radiator.
13. LED light fixture as claimed in claim 12 is characterized in that, the 1mm at least of being separated by between the inner surface of the pillar of described second radiator and the outer surface of described reflector.
14. LED light fixture as claimed in claim 7 is characterized in that, described heat abstractor comprises that one is arranged on the supporting member of the inside of described base portion, and described led light source is installed on the described supporting member.
15. LED light fixture as claimed in claim 7 is characterized in that, described heat abstractor comprises that one is arranged on the supporting member of the inside of described base portion, and described led light source is fixed on the heat-transfer device, and described heat-transfer device is installed on the described supporting member.
16., it is characterized in that the free end of described pillar is inside a little or outwardly-bent, so that described free end is resisted against on the outer surface of described bonnet as each described LED light fixture in the claim 7 to 15.
17. as each described LED light fixture in the claim 7 to 15, it is characterized in that, but described heat abstractor make by Heat Conduction Material, described bonnet is made by non-conducting material.
18. LED light fixture as claimed in claim 17 is characterized in that, but described Heat Conduction Material is aluminium, aluminium alloy, pottery, heat-conducting plastic or graphite.
19. LED light fixture as claimed in claim 17 is characterized in that, described non-conducting material is plastics or glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200737503U CN202002058U (en) | 2011-03-11 | 2011-03-11 | Heat-radiating device for lamp apparatus and LED lamp apparatus including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200737503U CN202002058U (en) | 2011-03-11 | 2011-03-11 | Heat-radiating device for lamp apparatus and LED lamp apparatus including same |
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| Publication Number | Publication Date |
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| CN202002058U true CN202002058U (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200737503U Expired - Fee Related CN202002058U (en) | 2011-03-11 | 2011-03-11 | Heat-radiating device for lamp apparatus and LED lamp apparatus including same |
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| CN (1) | CN202002058U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537742A (en) * | 2012-01-18 | 2012-07-04 | 深圳市超频三科技有限公司 | Led lamp |
| CN102679292A (en) * | 2011-03-11 | 2012-09-19 | 马士科技有限公司 | Radiating device for lamp and light-emitting diode (LED) lamp comprising radiating device |
| CN103994351A (en) * | 2012-01-18 | 2014-08-20 | 深圳市超频三科技有限公司 | Led lamp |
-
2011
- 2011-03-11 CN CN2011200737503U patent/CN202002058U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679292A (en) * | 2011-03-11 | 2012-09-19 | 马士科技有限公司 | Radiating device for lamp and light-emitting diode (LED) lamp comprising radiating device |
| CN102537742A (en) * | 2012-01-18 | 2012-07-04 | 深圳市超频三科技有限公司 | Led lamp |
| CN102537742B (en) * | 2012-01-18 | 2014-06-04 | 深圳市超频三科技有限公司 | Led lamp |
| CN103994351A (en) * | 2012-01-18 | 2014-08-20 | 深圳市超频三科技有限公司 | Led lamp |
| CN103994351B (en) * | 2012-01-18 | 2017-02-01 | 深圳市超频三科技股份有限公司 | Led lamp |
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Granted publication date: 20111005 Termination date: 20130311 |