CN105371207A - LED bulb - Google Patents
LED bulb Download PDFInfo
- Publication number
- CN105371207A CN105371207A CN201510732584.6A CN201510732584A CN105371207A CN 105371207 A CN105371207 A CN 105371207A CN 201510732584 A CN201510732584 A CN 201510732584A CN 105371207 A CN105371207 A CN 105371207A
- Authority
- CN
- China
- Prior art keywords
- light source
- heat radiation
- led light
- heat sink
- glass sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
Abstract
An LED bulb comprises a lamp holder (7), an LED light source (1) and a shell (8). Convection holes are formed in the upper end and the lower end of the shell (8), and the LED light source is installed on the bottom face of a heat radiation plate (2). The heat radiation plate (2) is fixed to the lamp holder (7) through a heat conducting bar (6). Heat radiation protrusions (22) are arranged on the upper end face of the heat radiation plate (2), and a glass sleeve (3) is fixed to the upper ends of the heat radiation protrusions (22). Two upper convection holes (5) are formed in the position, on the upper side of the glass sleeve (3), of the shell (8). Two lower convection holes (4) are formed in the position, located on the lower side of the LED light source (1), of the shell (8). The LED bulb can achieve fast heat convection, and the heat radiation efficiency of the LED light source can be improved.
Description
Technical field
The present invention relates to a kind of LED bulb.
Background technology
In recent years, because the development of LED industry is rapid, LED lamp progressively replaces traditional lighting.New its illuminator of a product released is similar to incandescent lamp tungsten filament in the market, and light efficiency is higher, and lighting angle is close to incandescent lamp.Electric energy conversion is the conversion ratio only 15-35% of luminous energy by LED, and remaining part all transforms in order to heat energy, and the heat produced in its luminescence process cannot distribute in time, significantly can reduce the luminous efficiency of light source.
Existing LED heat radiation is general adopts the heat radiation of solid conduction formula.Fin adopts the materials such as a large amount of aluminium, kirsite to carry out punching press or die casting makes; The active heat removal technology such as heat pipe, nanometer heat transfer technology, microchannel, fan also more to be used.Although said method can both play the object of heat radiation to a certain extent, no matter which kind of radiating mode, all improves manufacture difficulty, adds production cost, and product design also exists many keeping in check.
The existing LED to LED light source free convection, air flow rate is slow, and radiating efficiency is low.
Summary of the invention
Object of the present invention provides one to utilize cross-ventilation fast, the LED that radiating efficiency is high.
For achieving the above object, the present invention includes lamp holder, LED light source, housing, housing upper and lower side has convection holes, and described LED light source is installed on a heat sink bottom surface, and described heat sink is fixed on lamp holder through heat conducting bar, this heat sink upper surface has heat radiation protruding, the protruding upper end of described heat radiation is fixed with glass sleeve, and described housing is positioned on the upside of glass sleeve and has convection holes on two, and the described housing part be positioned on the downside of LED light source has two lower convection holes.
Further, the two ends that the oriented heat sink in heat sink upper surface two ends is centroclinal are protruding.
Preferably, described glass sleeve is conical.
Owing to being provided with projection in heat sink upper surface, add area of dissipation, glass sleeve is set in the upper end of projection simultaneously, hot-air can be concentrated in glass sleeve, hot-air concentrates in glass sleeve can accelerate the speed that in glass sleeve, hot-air rises, hot-air is blown out from upper convection holes fast, the speed that cold air enters from lower convection holes while improving hot-air flow rate, will be accelerated, thus accelerate convection rate.Reach fast to the effect of LED light source cooling.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail.
As shown in Figure 1, the present embodiment comprises lamp holder 7, LED light source 1, housing 8, housing 8 upper and lower side has convection holes, and described LED light source is installed on heat sink 2 bottom surface, and described heat sink 2 is fixed on lamp holder 7 through heat conducting bar 6, there is heat radiation protruding 22 this heat sink 2 upper surface, protruding 22 upper ends of described heat radiation are fixed with conical glass sleeve 3, and described housing 8 is positioned on the upside of glass sleeve 3 and has convection holes 5 on two, and described housing 8 part be positioned on the downside of LED light source 1 has two lower convection holes 4.The two ends projection 21 that the oriented heat sink in heat sink 2 upper surface two ends is centroclinal.
Owing to being provided with projection in heat sink upper surface, add area of dissipation, glass sleeve is set in the upper end of projection simultaneously, hot-air can be concentrated in glass sleeve, hot-air concentrates in glass sleeve can accelerate the speed that in glass sleeve, hot-air rises, hot-air is blown out from upper convection holes fast, the speed that cold air enters from lower convection holes while improving hot-air flow rate, will be accelerated, thus accelerate convection rate.Reach fast to the effect of LED light source cooling.
Claims (3)
1. a LED bulb, comprise lamp holder (7), LED light source (1), housing (8), housing (8) upper and lower side has convection holes, it is characterized in that, described LED light source is installed on a heat sink (2) bottom surface, described heat sink (2) is fixed on lamp holder (7) through heat conducting bar (6), there is heat radiation protruding (22) this heat sink (2) upper surface, protruding (22) upper end of described heat radiation is fixed with glass sleeve (3), described housing (8) is positioned at glass sleeve (3) upside and has convection holes on two (5), the part that described housing (8) is positioned at LED light source (1) downside has two lower convection holes (4).
2. LED bulb according to claim 1, is characterized in that, the two ends projection (21) that the oriented heat sink in heat sink (2) upper surface two ends is centroclinal.
3. LED bulb according to claim 1, is characterized in that, described glass sleeve (3) is conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732584.6A CN105371207A (en) | 2015-10-30 | 2015-10-30 | LED bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510732584.6A CN105371207A (en) | 2015-10-30 | 2015-10-30 | LED bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105371207A true CN105371207A (en) | 2016-03-02 |
Family
ID=55373640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510732584.6A Pending CN105371207A (en) | 2015-10-30 | 2015-10-30 | LED bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105371207A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202040777U (en) * | 2011-03-28 | 2011-11-16 | 惠州市风暴照明科技有限公司 | Radiating structure for accelerating thermal convection effect |
| CN202349666U (en) * | 2011-11-25 | 2012-07-25 | 生迪光电科技股份有限公司 | LED (light emitting diode) lamp with good heat radiating performance |
| CN102650382A (en) * | 2011-02-28 | 2012-08-29 | 株式会社东芝 | Lighting apparatus |
| CN103047550A (en) * | 2011-10-11 | 2013-04-17 | 康舒科技股份有限公司 | Light-emitting diode (LED) lamp with prolonged service life |
| CN104728631A (en) * | 2013-12-23 | 2015-06-24 | 天网电子股份有限公司 | LED bulb with central axis bidirectional convection type heat radiation structure |
-
2015
- 2015-10-30 CN CN201510732584.6A patent/CN105371207A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650382A (en) * | 2011-02-28 | 2012-08-29 | 株式会社东芝 | Lighting apparatus |
| CN202040777U (en) * | 2011-03-28 | 2011-11-16 | 惠州市风暴照明科技有限公司 | Radiating structure for accelerating thermal convection effect |
| CN103047550A (en) * | 2011-10-11 | 2013-04-17 | 康舒科技股份有限公司 | Light-emitting diode (LED) lamp with prolonged service life |
| CN202349666U (en) * | 2011-11-25 | 2012-07-25 | 生迪光电科技股份有限公司 | LED (light emitting diode) lamp with good heat radiating performance |
| CN104728631A (en) * | 2013-12-23 | 2015-06-24 | 天网电子股份有限公司 | LED bulb with central axis bidirectional convection type heat radiation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160302 |
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| RJ01 | Rejection of invention patent application after publication |