CN201180971Y - LED bulb - Google Patents
LED bulb Download PDFInfo
- Publication number
- CN201180971Y CN201180971Y CNU2008200449025U CN200820044902U CN201180971Y CN 201180971 Y CN201180971 Y CN 201180971Y CN U2008200449025 U CNU2008200449025 U CN U2008200449025U CN 200820044902 U CN200820044902 U CN 200820044902U CN 201180971 Y CN201180971 Y CN 201180971Y
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- CN
- China
- Prior art keywords
- circuit board
- radiating fin
- led bulb
- fin group
- led
- 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.)
- Expired - Fee Related
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses an LED bulb, which comprises a front cover, a tail seat, a connector arranged at the rear end of the tail seat, and a lamp cover arranged at the front end of the front cover; the tail seat, the front cover and the lamp cover are connected to form a hollow cavity; a circuit board which is provided with an LED illuminant is arranged in the hollow cavity, wherein, a radiating fin group is arranged in the hollow cavity; the radiating fin group is arranged on the tail seat; the circuit board which is provided with the LED illuminant are arranged at the front end of the radiating fin group; the radiating fin group is in the shape of a cylinder; the radiating fins radiate from a central circular tube; air vents are formed on the front cover and on the tail seat; the circuit board is arranged as a flat plate or a polyhedron; an LED illuminant is arranged on each surface of the polyhedral circuit board. The radiating device of the utility model has the advantages of lower manufacture and use costs, good radiating effect, and long service life of the LED bulb.
Description
Affiliated technical field
The utility model relates to a kind of bulb, especially a kind of LED bulb.
Background technology
It is various to be used at present the device form that dispels the heat on the market, mode also has nothing in common with each other, have circulated water-cooled, fan wind cold type or the like, adopt these existing modes, its heat abstractor cost is all than higher, these all are unsuitable for being used as to the LED bulb heat radiation, especially be unsuitable for being used as to the bigger LED bulb heat radiation of power, because such LED bulb is made up of a plurality of led array usually, it needs area of dissipation wider, if adopt circulated water-cooled, these existing modes such as fan wind cold type, its heat abstractor manufacturing cost is higher, and heat abstractor itself needs power consumption, increased use cost, and this and LED bulb energy-saving advantages are on the contrary.The LED bulb is as light source, the temperature of its life-span when luminous is directly relevant, if the temperature of led chip is higher when luminous, then its light decay is just very fast, when light decay acquires a certain degree, LED bulb luminous just very faint, the LED bulb will wear out, that is to say that the height of temperature influenced the short long of its service life when the LED bulb was luminous.Like this, as light source, in order to prolong its service life as far as possible, it is necessary that the LED bulb is dispelled the heat in good time effectively with the LED bulb.If there is not heat abstractor, so, such LED bulb its service life will be very short, as Chinese patent application numbers 200410067309.9 and the described technical scheme of China Patent No. ZL 02226440.X.Therefore, people are researching and developing effective and efficient manner and the device to the LED bulb heat radiation always.
Summary of the invention
The purpose of this utility model is in order to solve the problem of above-mentioned proposition, provides that a kind of heat abstractor manufacturing cost and use cost are lower and good heat dissipation effect, the LED bulb of long service life.
To achieve these goals, the technical solution adopted in the utility model is a kind of LED bulb, comprise protecgulum, tailstock, be arranged at the tailstock rear end joint, be arranged at the lampshade of protecgulum front end, tailstock, protecgulum engage with lampshade and form a cavity, the circuit board that is provided with the LED illuminator is arranged in the described cavity, wherein, one radiating fin group is arranged in the described cavity, this radiating fin group is arranged on the described tailstock, and the circuit board of the described LED of being provided with illuminator is arranged on the front end of described radiating fin group.
An embodiment of the present utility model, it is one cylindrical that described radiating fin group is, radiating fin by the center pipe to around disperse.
As further improvement, described protecgulum is provided with air-vent, also is provided with air-vent on the described tailstock.
In addition, generally, described circuit board is made as a flat board.As a kind of special case, described circuit board can be made as a polyhedron, all is provided with the LED illuminator on each face of this polyhedron circuit board.
The utility model compared with prior art its beneficial effect has: owing in the described cavity radiating fin group is arranged, this radiating fin group is arranged on the described tailstock, the circuit board of the described LED of being provided with illuminator is arranged on the front end of described radiating fin group, so lower and good heat dissipation effect of the utility model heat abstractor manufacturing cost and use cost, simultaneously, the long service life of the utility model LED bulb.
Description of drawings
Fig. 1 is an outside drawing of the present utility model;
Fig. 2 is that circuit board of the present utility model is the STRUCTURE DECOMPOSITION figure of a flat board;
Fig. 3 is that circuit board of the present utility model is a polyhedral STRUCTURE DECOMPOSITION figure.
The specific embodiment
Followingly the utility model is further described with reference to accompanying drawing:
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of LED bulb of the utility model, comprise protecgulum 2, tailstock 3, be arranged at tailstock 3 rear ends joint 4, be arranged at the lampshade 1 of protecgulum 2 front ends, tailstock 3, protecgulum 2 engage with lampshade 1 and form a cavity, the circuit board 6 that is provided with LED illuminator 7 is arranged in the described cavity, wherein, one radiating fin group 5 is arranged in the described cavity, this radiating fin group 5 is arranged on the described tailstock 3, and the circuit board 6 of the described LED of being provided with illuminator 7 is arranged on the front end of described radiating fin group 5.
An embodiment of the present utility model, it is one cylindrical that described radiating fin group 5 is, radiating fin by the center pipe to around disperse, as Fig. 2, shown in Figure 3, to reach best radiating effect.
The utility model is for reaching better radiating effect, and as further improvement, described protecgulum 2 upper edge perisporiums evenly are provided with air-vent, also are provided with air-vent on the described tailstock 3, so that cross-ventilation distributes the heat on the radiating fin group 5 outside bulb.
In addition, generally, described circuit board 6 is made as a flat board, as shown in Figure 2.But as a kind of special case, described circuit board can be made as a polyhedron, shown among Fig. 3 61, all is provided with LED illuminator 7 on each face of this polyhedron circuit board 61, to reach better light effects.
Above illustrated embodiment only with convenient explanation the utility model, is not breaking away from creation spirit scope of the present utility model, is familiar with any simple covert and modification that the personage did of this technology, must be contained in the rights protection scope of the present utility model.
Claims (6)
1. LED bulb, comprise protecgulum, tailstock, be arranged at the tailstock rear end joint, be arranged at the lampshade of protecgulum front end, tailstock, protecgulum engage with lampshade and form a cavity, the circuit board that is provided with the LED illuminator is arranged in the described cavity, it is characterized in that: a radiating fin group is arranged in the described cavity, this radiating fin group is arranged on the described tailstock, and the circuit board of the described LED of being provided with illuminator is arranged on the front end of described radiating fin group.
2. LED bulb according to claim 1 is characterized in that: described radiating fin group is one cylindrical, radiating fin by the center pipe to around disperse.
3. LED bulb according to claim 2 is characterized in that: described protecgulum is provided with air-vent.
4. LED bulb according to claim 3 is characterized in that: described tailstock is provided with air-vent.
5. LED bulb according to claim 4 is characterized in that: described circuit board is a flat board.
6. LED bulb according to claim 4 is characterized in that: described circuit board is a polyhedron, all is provided with the LED illuminator on each face of this circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200449025U CN201180971Y (en) | 2008-03-13 | 2008-03-13 | LED bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200449025U CN201180971Y (en) | 2008-03-13 | 2008-03-13 | LED bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201180971Y true CN201180971Y (en) | 2009-01-14 |
Family
ID=40250472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200449025U Expired - Fee Related CN201180971Y (en) | 2008-03-13 | 2008-03-13 | LED bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201180971Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032490A (en) * | 2010-12-28 | 2011-04-27 | 深圳市聚作实业有限公司 | Inner shaft radiation type LED bulb |
| CN102454922A (en) * | 2010-10-29 | 2012-05-16 | 伍永乐 | LED (light emitting diode) reflecting lamp |
-
2008
- 2008-03-13 CN CNU2008200449025U patent/CN201180971Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102454922A (en) * | 2010-10-29 | 2012-05-16 | 伍永乐 | LED (light emitting diode) reflecting lamp |
| CN102032490A (en) * | 2010-12-28 | 2011-04-27 | 深圳市聚作实业有限公司 | Inner shaft radiation type LED bulb |
| CN102032490B (en) * | 2010-12-28 | 2013-01-02 | 深圳市聚作实业有限公司 | Inner shaft radiation type LED bulb |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20120313 |