CN203810116U - LED (light emitting diode) bulb with built-in fin heat radiator - Google Patents
LED (light emitting diode) bulb with built-in fin heat radiator Download PDFInfo
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- CN203810116U CN203810116U CN201420146496.9U CN201420146496U CN203810116U CN 203810116 U CN203810116 U CN 203810116U CN 201420146496 U CN201420146496 U CN 201420146496U CN 203810116 U CN203810116 U CN 203810116U
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- fin
- radiator
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- led bulb
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Abstract
The utility model relates to the technical field of an LED (light emitting diode) bulb, in particular to an LED bulb with a built-in fin heat radiator. The bulb is additionally provided with a protection shell which is made of an insulation material, a fin heat radiator is arranged in the protection shell, by adopting the protection shell, on one hand, the impact resistance of the lamp can be effectively improved, the lamp shell has an insulation property on the other hand, and the safety performance of the lamp can be effectively improved; in addition, the protection shell is provided with a convection strip hole, a heat radiating fin of the fin heat radiator is arranged to face the convection strip hole, so that adequately convection in the protection shell can be guaranteed, the heat on the surface of the heat radiating fin can be rapidly brought out, and the overall heat radiating effect of the bulb can be guaranteed.
Description
Technical field
The utility model relates to LED bulb technologies field, particularly a kind of LED bulb of inbuilt fin sheet heat radiator.
Background technology
Along with the development of semiconductor technology, LED lamp because it has that volume is little, the low long service life that consumes energy, brightness is high and the advantage such as sturdy and durable progressively replaces traditional lighting.Yet, in order to make LED bulb can there is enough lumens, general need to arrange a plurality of LED lamp pearls in a bulb, these LED lamp pearls are integrated on the little aluminium base of area, and the work of LED lamp pearl time can produce a large amount of heats, if not in time these dissipation of heats are gone out, can be because heat accumulation causes lamp pearl temperature fast rise, this not only can affect luminous efficiency and the service life of lamp pearl, even can directly burn out lamp pearl or cause danger, therefore,, for LED bulb, heat dispersion is one of important measurement index of its quality.
In order to improve the heat dispersion of LED bulb, part producer has adopted fin radiator as radiating element, it is similar to the profile of heronsbill, therefore be also referred to as too fin radiator, because heronsbill structure has larger area of dissipation, therefore can obtain good radiating effect, at present, adopting the LED bulb of fin radiator is generally (this type of LED bulb is designed to have heronsbill radiator structure by its shell in other words) using fin radiator as its shell.But, there is corresponding defect in current this method: (1) is in order to derive the heat on substrate fast, fin radiator must be selected the material that thermal conductivity is high, based on many-side, consider, substantially be optionally exactly metal material, this can cause the fin radiator of LED bulb easily because bulb electric leakage etc. is former thereby charged, thereby causes product safety poor performance, and danger easily appears in use procedure; (2) heronsbill structure shock resistance is poor, its radiating fin easily falling, impaired in the impact process such as collision.
Summary of the invention
The purpose of this utility model is to avoid above-mentioned weak point of the prior art and provides a kind of safety performance good, and shock resistance is good, and the LED bulb of the inbuilt fin sheet heat radiator of good heat dissipation effect.
The purpose of this utility model is achieved through the following technical solutions:
A kind of LED bulb of inbuilt fin sheet heat radiator is provided; comprise fin radiator; described fin radiator comprises cylindrical body and is fixed on the radiating fin of cylindrical body outer wall; one end face of described fin radiator is provided with heat-radiating substrate; on described heat-radiating substrate, be provided with LED lamp pearl; also comprise the containment vessel of being made by insulating materials; described containment vessel has heat radiation chamber; the chamber wall in described heat radiation chamber offers the convection holes that is communicated with heat radiation chamber and containment vessel outside, in the accommodating and described heat radiation of described fin radiator chamber.
Wherein, described convection holes is along described containment vessel convection current cylindrical void longitudinally, the radiating fin of described fin radiator and the corresponding setting of described convection current cylindrical void.
Wherein, the width of described convection current cylindrical void is greater than the thickness of described radiating fin.
Wherein, described containment vessel is made by heat resistant plastice.
Wherein, the cylindrical body hollow of described fin radiator, to form convection cavity, is provided with the conduction hole that is communicated with convection cavity on described heat-radiating substrate.
Wherein, the radiating fin that the radiating fin of described fin radiator is curved surface.
Wherein, at the bottom of the chamber in described heat radiation chamber, internal diameter is less than accent internal diameter, the radiating fin of described fin radiator be partly embedded with described convection current cylindrical void in.
The beneficial effects of the utility model: the utility model provides a kind of LED bulb of inbuilt fin sheet heat radiator, this bulb has additional the containment vessel that insulating materials is made, fin radiator is contained in containment vessel, containment vessel can effectively improve the shock resistance of light fixture on the one hand, it can make lamp outer casing insulation on the other hand, effectively improves the safety performance of light fixture; In addition; containment vessel offers convection current cylindrical void, and the radiating fin of described fin radiator arranges towards described convection current cylindrical void, and this can guarantee that containment vessel inside has sufficient convection current; the heat that radiating fin represents can be taken out of fast, guaranteed the integral heat sink effect of bulb.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in accompanying drawing does not form any restriction of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to the following drawings other accompanying drawing.
Fig. 1 is the decomposing schematic representation of the LED bulb of a kind of inbuilt fin sheet heat radiator of the utility model.
Fig. 2 is the structural representation of the LED bulb of a kind of inbuilt fin sheet heat radiator of the utility model.
In Fig. 1 and Fig. 2, include:
1---fin radiator, 11---cylindrical body, 12---radiating fin, 13---convection cavity, 2---heat-radiating substrate, 21---pod apertures, 3---LED lamp pearl, 4---containment vessel, 41---heat radiation chamber, 42---convection current cylindrical void.
The specific embodiment
With the following Examples the utility model is further described.
The specific embodiment of the LED bulb of a kind of inbuilt fin sheet heat radiator 1 of the utility model, as shown in Figure 1, comprise: fin radiator 1, described fin radiator 1 comprises cylindrical body 11 and is fixed on the radiating fin 12 of cylindrical body 11 outer walls, one end face of described fin radiator 1 is provided with heat-radiating substrate 2, on described heat-radiating substrate 2, be provided with LED lamp pearl 3, also comprise the containment vessel 4 of being made by insulation, described containment vessel 4 offers heat radiation chamber 41, the chamber wall in described heat radiation chamber 41 offers the convection current cylindrical void 42 that is communicated with heat radiation chamber 41 and containment vessel 4 outsides, this convection current cylindrical void arranges longitudinally along described containment vessel, in the accommodating and described heat radiation of described fin radiator 1 chamber 41, the radiating fin 12 of described fin radiator 1 arranges towards described convection current cylindrical void 42.
Compared with prior art, the utility model has additional the containment vessel 4 that insulating materials is made, and fin radiator 1 is contained in containment vessel 4, and containment vessel 4 can effectively improve the shock resistance of light fixture on the one hand, it can make lamp outer casing insulation on the other hand, effectively improves the safety performance of light fixture; In addition; containment vessel 4 offers convection current cylindrical void 42, and the radiating fin 12 of described fin radiator 1 arranges towards described convection current cylindrical void 42, and this can guarantee that containment vessel 4 inside have sufficient convection current; the heat that radiating fin 12 is represented can be taken out of fast, has guaranteed the integral heat sink effect of bulb.
The width of described convection current cylindrical void 42 is greater than the thickness of described radiating fin 12.Now radiating fin 12 is when convection current cylindrical void 42, and the air-flow of the convection current cylindrical void 42 of flowing through can be divided into two strands of air-flows by corresponding with it radiating fin 12, makes air-flow blow to two surfaces of radiating fin 12 simultaneously, improves radiating efficiency.
Described containment vessel 4 is made by heat resistant plastice.Prevent that containment vessel 4 from should be overheated and degradation.
Cylindrical body 11 hollows of described fin radiator 1, to form convection cavity 13, are provided with the pod apertures 21 that is communicated with convection cavity 13 on described heat-radiating substrate 2.Thereby fully increase the convective loop of bulb inside, improve radiating effect.
The cross section of the radiating fin 12 of described fin radiator 1 is arch.The surface area that improves radiating fin 12 with this, improves radiating effect.
At the bottom of the chamber in described heat radiation chamber 41, internal diameter is less than accent internal diameter, and at the bottom of chamber internal diameter be less than fin radiator 1 base diameter so that radiating fin 12 base sections of described fin radiator be embedded with described convection current cylindrical void 42 in.During assembling, radiating fin 12 is aimed to convection current cylindrical void 42 and moved down and put in place, the lower end of radiating fin 12 i.e. part is embedded to convection current cylindrical void 42, thereby fin radiator 1 is played positioning action and without setting up other positioning elements, assembles simple.On the other hand, radiating fin 12 parts are embedded to convection current cylindrical void 42 and also can improve radiating effect.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (7)
1. the LED bulb of an inbuilt fin sheet heat radiator; comprise fin radiator; described fin radiator comprises cylindrical body and is fixed on the radiating fin of cylindrical body outer wall; one end face of described fin radiator is provided with heat-radiating substrate; on described heat-radiating substrate, be provided with LED lamp pearl; it is characterized in that: also comprise the containment vessel of being made by insulating materials; described containment vessel has heat radiation chamber; the chamber wall in described heat radiation chamber offers the convection holes that is communicated with heat radiation chamber and containment vessel outside, in the accommodating and described heat radiation of described fin radiator chamber.
2. the LED bulb of a kind of inbuilt fin sheet heat radiator as claimed in claim 1, is characterized in that: described convection holes is for along described containment vessel convection current cylindrical void longitudinally, the radiating fin of described fin radiator and the corresponding setting of described convection current cylindrical void.
3. the LED bulb of a kind of inbuilt fin sheet heat radiator as claimed in claim 2, is characterized in that: the width of described convection current cylindrical void is greater than the thickness of described radiating fin.
4. the LED bulb of a kind of inbuilt fin sheet heat radiator as described in any one in claims 1 to 3, is characterized in that: described containment vessel is made by heat resistant plastice.
5. the LED bulb of a kind of inbuilt fin sheet heat radiator as claimed in claim 4, is characterized in that: the cylindrical body hollow of described fin radiator, to form convection cavity, is provided with the conduction hole that is communicated with convection cavity on described heat-radiating substrate.
6. the LED bulb of a kind of inbuilt fin sheet heat radiator as claimed in claim 5, is characterized in that: the radiating fin that the radiating fin of described fin radiator is curved surface.
7. the LED bulb of a kind of inbuilt fin sheet heat radiator as claimed in claim 6, is characterized in that: at the bottom of the chamber in described heat radiation chamber, internal diameter is less than accent internal diameter, the radiating fin of described fin radiator be partly embedded with described convection current cylindrical void in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146496.9U CN203810116U (en) | 2014-03-28 | 2014-03-28 | LED (light emitting diode) bulb with built-in fin heat radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420146496.9U CN203810116U (en) | 2014-03-28 | 2014-03-28 | LED (light emitting diode) bulb with built-in fin heat radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203810116U true CN203810116U (en) | 2014-09-03 |
Family
ID=51448861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420146496.9U Expired - Fee Related CN203810116U (en) | 2014-03-28 | 2014-03-28 | LED (light emitting diode) bulb with built-in fin heat radiator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203810116U (en) |
-
2014
- 2014-03-28 CN CN201420146496.9U patent/CN203810116U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160425 Address after: 338000 Jiangxi city of Xinyu province high tech industrial estate 2 Jiangxi province Linsen Photoelectric Technology Co. Ltd. Patentee after: JIANGXI MULINSEN OPTOELECTRONICS TECHNOLOGY CO., LTD. Address before: Limited by Share Ltd No. 1 road 528415 Guangdong Linsen wood Linsen Zhongshan City Xiaolan Town Patentee before: MLS Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20190328 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |