CN202708750U - LED (light emitting diode) lamp bead - Google Patents
LED (light emitting diode) lamp bead Download PDFInfo
- Publication number
- CN202708750U CN202708750U CN2012203914561U CN201220391456U CN202708750U CN 202708750 U CN202708750 U CN 202708750U CN 2012203914561 U CN2012203914561 U CN 2012203914561U CN 201220391456 U CN201220391456 U CN 201220391456U CN 202708750 U CN202708750 U CN 202708750U
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- CN
- China
- Prior art keywords
- circuit board
- led lamp
- lamp pearl
- led
- lens
- 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 - Lifetime
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model discloses an LED (light emitting diode) lamp bead, comprising an LED chip, a lens and a circuit board, wherein the LED chip is arranged on the circuit board, the lens is arranged on the circuit board and covers the LED chip, the LED lamp bead further comprises a weld layer, and the weld layer is arranged at the bottom of the circuit board. According to the LED lamp bead provided by the utility model, the weld layer is arranged at the bottom of the circuit board, and the LED lamp bead is directly welded on a heat radiator, so that the heat generated by the LED lamp bead is directed guided to the heat radiator through the weld layer metal, and the heat radiating performance is further improved. The circuit board is provided with two through holes, one through hole is used for injecting glue, and the other through hole is used for exhausting, so that the lens can be formed conveniently.
Description
[technical field]
The utility model relates to a kind of lamp pearl, particularly relates to a kind of LED lamp pearl that can combine closely and be convenient to heat conduction with radiator.
[background technology]
The advantages such as worldwide energy shortage causes various countries to the attention of power-saving technology, and that LED (Light Emitting Diode, light emitting diode) has is energy-conservation, efficient, the life-span is long, thereby will become the development trend of following lighting field.In LED when work,, finally probably only having the input electric energy conversion of 30-40% is luminous energy, and the energy of all the other 60-70% mainly transforms heat energy with the form of the lattice vibration of non-radiative compound generation.Heat concentrates in the small-sized chip, and chip temperature raises, and causes the sharp decrease in efficiency of penetrating of non-uniform Distribution, chip light emitting efficient and phosphor powder of thermal stress; When temperature surpassed certain value, the component failure rate is index law to be increased.Statistics shows, 2 ℃ of the every risings of component temperature, reliability decrease 10%.In general, whether the work of LED lamp is stable, and the quality quality is most important with lamp body heat radiation itself.
Existing LED lamp generally is to be connected after the circuit board of LED lamp pearl and the radiator applying, to dispel the heat, owing to across circuit board, and fit between circuit board and the radiator and closely do not have air layer between LED lamp pearl and the radiator, so the heat of LED lamp pearl can not successfully conduct to radiator.
[summary of the invention]
Be the technical problem such as the LED lamp pearl that overcomes prior art and the heat conduction of radiator junction is bad, the utility model provides a kind of LED lamp pearl of good heat conductivity.
The technical scheme that the utility model solves the prior art problem is: a kind of LED lamp pearl is provided, comprise led chip, lens and circuit board, led chip is arranged on the circuit board, lens place on the circuit board and cover led chip, this LED lamp pearl further comprises a layer, and this layer places the circuit board bottom.
Preferably, the layer shape is identical with led chip distributed areas shape.
Preferably, these lens are a hemispherical.
Preferably, four of circuit board positions, angle arrange respectively a pad.
Preferably, the side of two correspondences of circuit board respectively interval arranges two mounting grooves, and this mounting groove takes the shape of the letter U, circular, oval, kidney-shaped or square.
Preferably, circuit board further comprises two through holes, this two through hole separately, and in the zone of lens covering board.
The LED lamp pearl that the utility model provides can make this LED lamp pearl directly be welded on the radiator by in the circuit board bottom one layer being set, and the heat of LED lamp pearl generation can directly import to radiator by the weld layer metal like this, has improved heat dispersion.Circuit board arranges two through holes, and one is used for encapsulating, and one is used for exhaust, so that molded lens.Four angles of circuit board are provided with pad, so that the wiring of LED lamp pearl arranges four mounting grooves so that the installation of this LED lamp pearl and spacing.
[description of drawings]
Fig. 1 is a kind of LED lamp pearl of providing of the utility model the first embodiment and cut-away view after radiator is connected.
Fig. 2 is the polycrystalline substance schematic diagram of the LED lamp pearl that provides of the utility model the first embodiment.
[specific embodiment]
In order to make the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with drawings and Examples, the utility model are further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, structural representation after a kind of LED lamp pearl 10 that provides for the utility model the first embodiment is installed with radiator, comprise LED lamp pearl 10, heat conductive pad 30 and radiator 50, LED lamp pearl 10 places on the radiator 50, with radiator 50 welding, heat conductive pad 30 places between LED lamp pearl 10 and the radiator 50.
See also Fig. 2, be these LED lamp pearl 10 polycrystalline substance schematic diagrames, wherein circuit board 105 comprises two through hole 106, four pads 102, four mounting grooves 104 that connect and is built in line construction (not shown) in the circuit board 105.This two through hole 106 is symmetrically arranged in layer 107 both sides separately, and one of them is used for the sealing pouring adhesive body with molded lens 101, and exhaust when another is used for molded lens 101 does not just have bubble after lens 101 moulding like this, and the injecting glue process also can be more smooth and easy.This four pad 102 places respectively the position at four angles of this circuit board 105, is used for the wiring of LED lamp pearl 10.These four mounting grooves 104 place on two relative limits of this circuit board 105, are arranged symmetrically with, and separately, mounting groove 104 takes the shape of the letter U, and it is used for the installation of this LED lamp pearl 10 or spacing.This mounting groove 104 can also be circular, oval, kidney-shaped or square etc.
The LED lamp pearl 10 that the utility model provides, by a layer 107 is set in circuit board 105 bottoms this LED lamp pearl 10 directly is welded on the radiator 50, the heat of LED lamp pearl 10 generations can directly import to radiator 50 by metal layer 107 like this, has improved heat dispersion.Circuit board 105 arranges 106, one of two through holes and is used for encapsulating, and one is used for exhaust, so that molded lens 101.105 4 angles of circuit board are provided with pad 102, so that 10 wiring of LED lamp pearl arrange four mounting grooves 104 so that the installation of this LED lamp pearl 10 and spacing.
The above only is preferred embodiment of the present utility model, and in order to limit the utility model, all any modifications of doing within principle of the present utility model are not equal to replacement and improvement etc. and all should be included within the protection domain of the present utility model.
Claims (7)
1. a LED lamp pearl comprises led chip, lens and circuit board, and led chip is arranged on the circuit board, and lens place on the circuit board and cover led chip, it is characterized in that: this LED lamp pearl further comprises a layer, and this layer places the circuit board bottom.
2. LED lamp pearl as claimed in claim 1, it is characterized in that: the layer shape is identical with led chip distributed areas shape.
3. LED lamp pearl as claimed in claim 2, it is characterized in that: these lens are a hemispherical.
4. LED lamp pearl as claimed in claim 3, it is characterized in that: the position, four angles of circuit board arranges respectively a pad.
5. LED lamp pearl as claimed in claim 4, it is characterized in that: the side of two correspondences of circuit board respectively interval arranges two mounting grooves, and this mounting groove takes the shape of the letter U, circular, oval, kidney-shaped or square.
6. LED lamp pearl as claimed in claim 5, it is characterized in that: further comprise a radiator, this radiator and circuit board weld by layer.
7. such as the described LED lamp of claim 1-6 any one claim pearl, it is characterized in that: circuit board further comprises two through holes, this two through hole separately, and in the zone of lens covering board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203914561U CN202708750U (en) | 2012-08-09 | 2012-08-09 | LED (light emitting diode) lamp bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203914561U CN202708750U (en) | 2012-08-09 | 2012-08-09 | LED (light emitting diode) lamp bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708750U true CN202708750U (en) | 2013-01-30 |
Family
ID=47589050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203914561U Expired - Lifetime CN202708750U (en) | 2012-08-09 | 2012-08-09 | LED (light emitting diode) lamp bead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048194A (en) * | 2013-03-16 | 2014-09-17 | 深圳市邦贝尔电子有限公司 | LED (Light Emitting Diode) lamp bead and optical component |
-
2012
- 2012-08-09 CN CN2012203914561U patent/CN202708750U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048194A (en) * | 2013-03-16 | 2014-09-17 | 深圳市邦贝尔电子有限公司 | LED (Light Emitting Diode) lamp bead and optical component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wang Qin Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |