CN203298017U - LED lamp provided with needle-like radiator - Google Patents
LED lamp provided with needle-like radiator Download PDFInfo
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- CN203298017U CN203298017U CN2013203496550U CN201320349655U CN203298017U CN 203298017 U CN203298017 U CN 203298017U CN 2013203496550 U CN2013203496550 U CN 2013203496550U CN 201320349655 U CN201320349655 U CN 201320349655U CN 203298017 U CN203298017 U CN 203298017U
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- radiator
- needle
- light fixture
- led
- heat
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Abstract
The utility model provides an LED lamp provided with a needle-like radiator. The LED lamp provided with the needle-like radiator comprises a circuit board, wherein a radiating substrate is connected to one side of the circuit board in an attaching mode, and the radiator comprises the radiating substrate. The LED lamp provided with the needle-like radiator is characterized in that the radiator further comprises a plurality of needle-like radiating fin columns evenly connected to one side of the radiating substrate at intervals. According to the LED lamp provided with the needle-like radiator, due to the additional arrangement of the needle-like radiating fin columns on the radiator, the radiating area is increased on the premise that the structure size of the lamp is not increased, and then the radiating capacity of the radiator is improved.
Description
Technical field
The utility model relates to a kind of LED light fixture, relates in particular to a kind of light fixture of LED with the needle-like radiator.
Background technology
at present, the LED light fixture has replaced gradually incandescent lamp and has walked close to every field, become main lighting source, although the LED light fixture has higher brightness than incandescent lamp, but the LED light fixture only can convert a fraction of electric energy to luminous energy, most electric energy distributes in light fixture with the form of heat, and the LED crystal grain of LED light fixture is semi-conducting material, non-refractory, the high temperature that the heat energy accumulation produces can affect the service life of LED light fixture on the one hand, can make the LED light fixture in work produce light decay, and affect illumination intensity, on the other hand, at some, the place of inflammable and explosive dust or gas is arranged, in case the contact-making surface temperature of shell and inflammable and explosive dust or gas will be blasted higher than ignition temperature.Therefore, the LED light fixture must be equipped with heat dissipation equipment, in order to the heat with lamp interior, conducts in surrounding environment.Along with the raising of LED lamp power, accumulation of heat strengthens, and in order to reduce thermal resistance, light fixture is maintained the temperature range of normal operation, needs larger area of dissipation.
Summary of the invention
In order to solve the deficiency in background technology, the purpose of this utility model is to overcome the defect of background technology, provide a kind of light fixture of LED with the needle-like radiator, increasing heat radiation area under the prerequisite that does not increase the fitting structure size, thereby the heat-sinking capability of increase radiator.
For achieving the above object, the technical solution adopted in the utility model is: a kind of light fixture of LED with the needle-like radiator, described LED light fixture comprises wiring board, described heat-radiating substrate attaches a side that is connected to described wiring board, described radiator comprises heat-radiating substrate, it is characterized in that: described radiator also comprises that interval evenly is connected to a plurality of needle-like radiating fin posts of described heat-radiating substrate one side.
In preferred embodiment of the utility model, the number that further comprises described radiating fin post is 60-80, and the thickness of described radiating fin post is less than or equal to 0.5mm.
In preferred embodiment of the utility model, the cross section that further comprises described heat-radiating substrate is for falling " U " font, and described radiating fin post is along the outer wall of described heat-radiating substrate and perpendicular to described heat-radiating substrate end face interval, be uniformly distributed.
In preferred embodiment of the utility model, comprise that further the lumen loading of described heat-radiating substrate has phase-change material.
In preferred embodiment of the utility model, comprise that further described phase-change material is one or both combinations in paraffin, aliphatic acid, Sodium acetate trihydrate.
In preferred embodiment of the utility model, the material that further comprises described heat-radiating substrate and radiating fin post is copper.
Usefulness of the present utility model is: a kind of light fixture of LED with the needle-like radiator of the present utility model, by add a plurality of radiating fin posts on heat-radiating substrate, greatly increased area of dissipation, strengthened the heat-sinking capability of radiator, fill simultaneously phase-change material in radiator, in the situation that same heat-sinking capability is provided, reduced the size of LED lamp radiator, can make the structural design of LED light fixture more compact, prevent that effectively the local pyrexia of LED light fixture is excessive, and can not increase the input of cost.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the structural representation of a kind of light fixture of LED with the needle-like radiator of the present utility model.
In figure: 2, LED lamp pearl, 4, wafer, 6, wiring board, 8, radiator, 10, housing, 12, heat-radiating substrate, 14, the radiating fin post, 16, phase-change material.
The specific embodiment
In order to make those skilled in the art person understand better the utility model scheme, and above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with embodiment and embodiment accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of light fixture of LED with the needle-like radiator, the LED light fixture comprises LED lamp pearl 2, wafer 4, wiring board 6, radiator 8, and the housing 10 of above-mentioned parts is taken in sealing.Wafer 4 is encapsulated in LED lamp pearl 2, LED lamp pearl 2 is welded on wiring board 6, power to LED lamp pearl 2 by the external power device, wherein, radiator 8 is located at the back side (non-main element solder side) of wiring board 6, can both be bonded together by thermal conductive insulation glue, also can be connected with wiring board 6 with the mode by screw or embedding.
Radiator 8 comprises heat-radiating substrate 12, and heat-radiating substrate 12 can be selected copper sheet material, and thermal conductivity factor is large, and thermal conductivity is good.Special feature of the present utility model is at the integrated 60-80 of being provided with of a side thickness of the heat-radiating substrate 12 needle-like radiating fin post 14 less than or equal to 0.5mm, add after radiating fin post 14 area of dissipation that has greatly increased radiator 8, form simultaneously open outer heat loss through convection passage between the adjacent radiating fin 14 in every two intervals, and then greatly improve the heat-sinking capability of radiator 8.Simultaneously, similarly be the metallic plate with the pin post after heat-radiating substrate 12 and radiating fin post 14 are one-body molded, can cut arbitrarily, use very convenient.
, for further increasing heat radiation area, heat-radiating substrate 12 is designed to cross section is down " U " font, and radiating fin post 14 is uniformly distributed along the outer wall of heat-radiating substrate 12 and perpendicular to the end face interval of heat-radiating substrate 12.
For better heat radiation, the heat of lamp interior is better conducted, lumen loading at heat-radiating substrate 12 has phase-change material 16, so-called phase-change material 16 refers to vary with temperature and changes material resources character and the material of latent heat can be provided, as preferred material, the combination of one or both in preferred paraffin, aliphatic acid, Sodium acetate trihydrate, low price, material ubiquity.
What phase-change material 16 provided latent heat is to realize like this, when the heat energy of wiring board 6 is accumulated too much, perhaps local pyrexia is excessive, when the temperature of heat-radiating substrate 12 surpasses the phase transition temperature of phase-change material 16, phase-change material 16 can receive the heat that can not in time distribute by phase transition process, thereby makes wiring board 6 maintain stable operating temperature range.Therefore, at the interior filling phase-change material 16 of radiator 8, in the situation that same heat-sinking capability is provided, reduced the size of LED lamp radiator, can make the structural design of LED light fixture more compact, prevent that effectively the local pyrexia of LED light fixture is excessive, and can not increase the input of cost.
Above-described embodiment is the better embodiment of the utility model; but embodiment of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify the substitute mode that all should be equivalence, within being included in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain that claim was defined.
Claims (6)
1. light fixture of the LED with the needle-like radiator, described LED light fixture comprises wiring board, described heat-radiating substrate attaches a side that is connected to described wiring board, described radiator comprises heat-radiating substrate, it is characterized in that: described radiator also comprises that interval evenly is connected to a plurality of needle-like radiating fin posts of described heat-radiating substrate one side.
2. a kind of light fixture of LED with the needle-like radiator according to claim 1 is characterized in that: the number of described radiating fin post is 60-80, and the thickness of described radiating fin post is less than or equal to 0.5mm.
3. a kind of light fixture of LED with the needle-like radiator according to claim 1 and 2, it is characterized in that: the cross section of described heat-radiating substrate is for falling " U " font, and described radiating fin post is along the outer wall of described heat-radiating substrate and perpendicular to described heat-radiating substrate end face interval, be uniformly distributed.
4. a kind of light fixture of LED with the needle-like radiator according to claim 3, it is characterized in that: the lumen loading of described heat-radiating substrate has phase-change material.
5. a kind of light fixture of LED with the needle-like radiator according to claim 4, it is characterized in that: described phase-change material is one or both combinations in paraffin, aliphatic acid, Sodium acetate trihydrate.
6. a kind of light fixture of LED with the needle-like radiator according to claim 1, it is characterized in that: the material of described heat-radiating substrate and radiating fin post is copper.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2013203496550U CN203298017U (en) | 2013-06-19 | 2013-06-19 | LED lamp provided with needle-like radiator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN2013203496550U CN203298017U (en) | 2013-06-19 | 2013-06-19 | LED lamp provided with needle-like radiator |
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CN203298017U true CN203298017U (en) | 2013-11-20 |
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CN2013203496550U Expired - Fee Related CN203298017U (en) | 2013-06-19 | 2013-06-19 | LED lamp provided with needle-like radiator |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103277692A (en) * | 2013-06-19 | 2013-09-04 | 苏州信亚科技有限公司 | LED lamp with needle-shaped radiator bodies |
-
2013
- 2013-06-19 CN CN2013203496550U patent/CN203298017U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103277692A (en) * | 2013-06-19 | 2013-09-04 | 苏州信亚科技有限公司 | LED lamp with needle-shaped radiator bodies |
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Date | Code | Title | Description |
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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: 20131120 Termination date: 20140619 |
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EXPY | Termination of patent right or utility model |