CN202302822U - A Dimmable LED Bulb - Google Patents
A Dimmable LED Bulb Download PDFInfo
- Publication number
- CN202302822U CN202302822U CN2011203674281U CN201120367428U CN202302822U CN 202302822 U CN202302822 U CN 202302822U CN 2011203674281 U CN2011203674281 U CN 2011203674281U CN 201120367428 U CN201120367428 U CN 201120367428U CN 202302822 U CN202302822 U CN 202302822U
- Authority
- CN
- China
- Prior art keywords
- led
- heat dissipation
- heat
- lampshade
- pcb
- 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
Links
- 239000000758 substrate Substances 0.000 claims abstract description 90
- 229910052751 metal Inorganic materials 0.000 claims abstract description 58
- 239000002184 metal Substances 0.000 claims abstract description 58
- 230000017525 heat dissipation Effects 0.000 claims abstract description 39
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims description 25
- 238000009413 insulation Methods 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 238000003491 array Methods 0.000 claims description 3
- 230000002950 deficient Effects 0.000 abstract description 5
- 238000005286 illumination Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Images
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The utility model relates to a LED lamp technology, in particular to a dimmable LED bulb, which comprises a lamp holder, a lampshade and a power supply positioned in the lamp holder, wherein a heat dissipation metal shell is clamped between the lamp holder and the lampshade, the top of the heat dissipation metal shell is positioned in the lampshade, a heat dissipation substrate is clamped and fixed at the top of the heat dissipation metal shell, a LED luminous column is spliced and fixed on the heat dissipation substrate, the LED luminous column comprises two PCB substrates, LED chips are respectively mounted on the front surfaces of the two PCB substrates by SMT surface mounting technology, the PCB substrates are electrically connected with the power supply, a heat dissipation metal sheet is clamped between the back surfaces of the two PCB substrates, and the back surfaces of the two PCB substrates are respectively fixedly attached with the heat dissipation metal sheet; the utility model discloses low cost, defective rate are low, can realize radially luminous, light coverage is big, the radiating rate is fast.
Description
Technical field
The utility model relates to LED light fixture technology, relates in particular to a kind of LED bulb of tunable optical.
Background technology
Because LED (Light Emitting Diode; Light emitting diode) has characteristics such as long service life, energy consumption is low, energy savings is remarkable; Therefore, LED has been widely used in the daily life as light source, like LED lightings such as cup lamp, shot-light, auto lamp, LED bulbs.
At present; The LED bulb generally comprises lamp holder, be installed in the lampshade at lamp holder top, be positioned at the power supply of lamp holder; Be provided with the LED Column being luminous in the lampshade, the LED Column being luminous is electrically connected with the interior power supply of lamp holder, when LED Column being luminous electrified light emitting; Its light that sends can see through lampshade and shine out, the purpose that reaches illumination or decorate.
The applicant's application number is that 201110031395.8 Chinese invention patent application discloses a kind of LED bulb; LED Column being luminous in the LED bulb comprises two PCB substrates; The front of two PCB substrates all is packaged with led chip, and led chip is electrically connected with the PCB substrate, and the PCB substrate is electrically connected with power supply; The back side of two PCB substrates is close to fixing mutually, and is gripped with heat dissipation metal plate between the back side of two PCB substrates.The PCB substrate of this LED bulb offers the blind hole that is used for packaging LED chips, and led chip is fixed in the blind hole through resin-encapsulated, and the inside edge of blind hole is outward-dipping slope.Adopt the method that encapsulates behind this first open-blind hole, cause the LED bulb to cost an arm and a leg, cost is higher, fraction defective is high.
Summary of the invention
The purpose of the utility model is to provide to the deficiency of prior art a kind of LED bulb of cheap, tunable optical that radiating rate is fast.
The purpose of the utility model realizes through following technical measures: a kind of LED bulb of tunable optical; It includes lamp holder, lampshade, is positioned at the power supply of lamp holder; Be connected with the heat radiating metal shell between lamp holder and the lampshade, the top of heat radiating metal shell is positioned at lampshade, and the top of heat radiating metal shell is fixed with heat-radiating substrate; Heat-radiating substrate is pegged graft and is fixed with the LED Column being luminous; The LED Column being luminous comprises two PCB substrates, and the front of two PCB substrates all is pasted with led chip through the SMT surface mounting technology, and the PCB substrate is electrically connected with power supply; Be gripped with heat dissipation metal plate between the back side of two PCB substrates, the back side of two PCB substrates all is close to fixing with heat dissipation metal plate.
Wherein, the led chip that mounts of said PCB substrate is more than two or two.
Wherein, the led chip side of the being sheet that mounts of said SMT.
Wherein, the led chip that mounts of said SMT is arranged in the upper parallel of said PCB substrate.
Wherein, the led chip that mounts on said two PCB substrates is a plane of symmetry symmetric arrays with said heat dissipation metal plate.
Wherein, the area of said heat dissipation metal plate side is greater than the area of said PCB substrate back.
Wherein, said heat-radiating substrate, said PCB substrate are the heat-radiating aluminum plate, and said heat dissipation metal plate is a copper sheet.
Wherein, be fixed with insulation sleeve in the bottom of said heat radiating metal shell.
Wherein, the two PCB substrates and the said heat dissipation metal plate of said LED Column being luminous are fixed through rivet, and rivet is arranged at the below of said led chip.
Wherein, said lampshade is candle lampshade or globe holder.
The utility model beneficial effect is: a kind of LED bulb of tunable optical, and it includes lamp holder, lampshade, is positioned at the power supply of lamp holder, is connected with the heat radiating metal shell between lamp holder and the lampshade; The top of heat radiating metal shell is positioned at lampshade; And the top of heat radiating metal shell is fixed with heat-radiating substrate, and heat-radiating substrate is pegged graft and is fixed with the LED Column being luminous, and the LED Column being luminous comprises two PCB substrates; The front of two PCB substrates all is pasted with led chip through the SMT surface mounting technology; The PCB substrate is electrically connected with power supply, is gripped with heat dissipation metal plate between the back side of two PCB substrates, and the back side of two PCB substrates all is close to fixing with heat dissipation metal plate.The front of the PCB substrate of the utility model all is pasted with led chip through the SMT surface mounting technology, and the cost that this method mounts led chip is low through the cost of packaging LED chips behind the first open-blind hole, fraction defective is low; The both sides of LED Column being luminous all are pasted with led chip, when led chip is luminous, can realize radially luminous, and light coverage big (can reach 360 degree); The heat dissipation metal plate of LED Column being luminous can pass to heat-radiating substrate apace with the heat of assembling on the PCB substrate; Distribute apace through the heat radiating metal shell by heat-radiating substrate again; Therefore, the utility model is with low cost, fraction defective is low, it is radially luminous to realize, the light coverage is big, radiating rate is fast.
Description of drawings
Fig. 1 is the structural representation of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 2 is the decomposing schematic representation of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 3 is the structural representation that conceals lampshade of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 4 is the cutaway view that conceals lampshade of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 5 is the structural representation of LED Column being luminous of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 6 is the structural representation of another angle of LED Column being luminous of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 7 is the decomposing schematic representation of LED Column being luminous of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
Fig. 8 is the cutaway view of LED Column being luminous of the LED bulb embodiment 1 of a kind of tunable optical of the utility model.
In Fig. 1 to Fig. 8, include:
1---lamp holder 2---lampshade
3---power supply 4---heat radiating metal shell
5---heat-radiating substrate 6---LED Column being luminous
61---PCB substrate 62---rivet
63---led chip 64 that SMT mounts---heat dissipation metal plate
7---insulation sleeve.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
The LED bulb of a kind of tunable optical of the utility model; Shown in Fig. 1～8, it includes lamp holder 1, lampshade 2, is positioned at the power supply 3 of lamp holder 1, and power supply 3 is electrically connected with lamp holder 1; Make power supply 3 can pass through lamp holder 1 external power supply; Power supply 3 can cooperate existing light modulator to use, and light modulator is a prior art, repeats no more at this.Be connected with heat radiating metal shell 4 between lamp holder 1 and the lampshade 2, the top of heat radiating metal shell 4 is positioned at lampshade 2, and the top of heat radiating metal shell 4 is fixed with heat-radiating substrate 5, and heat-radiating substrate 5 can be with heat transferred heat radiating metal shell 4; Heat-radiating substrate 5 is pegged graft and is fixed with LED Column being luminous 6, and LED Column being luminous 6 comprises that the back side that is gripped with 64, two PCB substrates 61 of heat dissipation metal plate between the back side of 61, two PCB substrates 61 of two PCB substrates all is close to fixing with heat dissipation metal plate 64.The front of two PCB substrates 61 all is pasted with led chip 63 through the SMT surface mounting technology, and the led chip 63 that SMT mounts is electrically connected with PCB substrate 61, and PCB substrate 61 is electrically connected with power supply 3.Power supply 3 can convert alternating current into direct current, and supplies power for the led chip 63 that SMT mounts through PCB substrate 61.Be gripped with heat dissipation metal plate 64 between the back side of two PCB substrates 61; The back side of two PCB substrates 61 all is close to fixing with heat dissipation metal plate 64; The both sides of LED Column being luminous 6 all have the led chip 63 that SMT mounts; When the led chip that mounts as SMT 63 is luminous, can realize radially luminous, and light coverage big (can reach 360 degree).
The LED Column being luminous 6 of the utility model comprises that the front of 61, two PCB substrates 61 of two PCB substrates all is pasted with led chip 63 through the SMT surface mounting technology.The cost that this method mounts led chip 63 is low than the cost through the blind hole packaging LED chips, and volume is little, in light weight, fraction defective is low, packing density is high, satisfies the production requirement of LED bulb miniaturization.
In the utility model; The led chip 63 that every PCB substrate 61 mounts is more than two or two, and three of selecting for use of present embodiment for example have enough brightness when making LED Column being luminous 6 luminous; Thereby make the utility model can substitute traditional tengsten lamp, the purpose that reaches illumination or decorate.And the led chip that mounts 63 is the small-power chip, has adopted led chip 63 that the SMT of power saving, long service life mounts as light source, and than traditional tengsten lamp, the present invention has advantages such as power saving, long service life.
In the present embodiment, the led chip 63 that SMT mounts is square sheet.Certainly, the led chip 63 that mounts of the SMT that uses of the utility model also can be disk.
In the present embodiment, the led chip 63 that SMT mounts is arranged in the upper parallel of PCB substrate 61, and the led chip 63 that SMT mounts is arranged on the top of PCB substrate 61, and the irradiate light scope is big, broad covered area.The led chip 63 that mounts on two PCB substrates 61 is a plane of symmetry symmetric arrays with said heat dissipation metal plate 64; The height of the led chip 63 of two PCB substrates 61 of LED Column being luminous 6 equates; Make the led chip 63 of LED Column being luminous 6 both sides can keep sustained height luminous; Form spot light, the light luminance that makes LED Column being luminous 6 send is even.The orientation of present embodiment " on " D score is reference direction with Fig. 2.
In the utility model, LED Column being luminous 6 is more than one or one, and preferred, LED Column being luminous 6 is more than two or two, and for example present embodiment uses three LED Column being luminous 6, makes that the brightness of bulb is higher.
In the utility model, the back side that is gripped with 64, two PCB substrates 61 of heat dissipation metal plate between the back side of two PCB substrates 61 all is close to fixing with heat dissipation metal plate 64.Because when led chip 63 work that SMT mounts are luminous; Meeting produces great amount of heat and accumulates on the PCB substrate 61; So heat dissipation metal plate 64 can be distributed the heat transferred heat-radiating substrate of assembling on the PCB substrate 61 5 through heat radiating metal shell 4 by heat-radiating substrate 5 more apace.In the present embodiment, preferred heat dissipation metal plate 64 is a copper sheet, because copper sheet has the thermal conductivity advantages of higher, can the heat of assembling on the PCB substrate 61 be led away apace, and promptly radiating rate is very fast.Certainly, said heat dissipation metal plate 64 also can be processed for other heat sink material, as long as it has the thermal conductivity advantages of higher.
The area of heat dissipation metal plate 64 sides is greater than the area at PCB substrate 61 back sides, promptly heat dissipation metal plate 64 around protrude from PCB substrate 61 slightly, to increase heat radiation and heat-conducting area.
Be fixed with insulation sleeve 7 in the bottom of heat radiating metal shell 4, make insulation between heat radiating metal shell 4 and the power supply 3.
Heat-radiating substrate 5, PCB substrate 61 are the heat-radiating aluminum plate, and the heat-radiating aluminum plate has better heat radiating effect.
The two PCB substrates 61 and the heat dissipation metal plate 64 of LED Column being luminous 6 is fixing through rivet 62; More particularly; Rivet 62 passes two PCB substrates 61 and heat dissipation metal plate 64, thereby two PCB substrates 61 and heat dissipation metal plate 64 are locked, and the back side of heat dissipation metal plate 64 and two PCB substrates 61 is closely sticked together; Thereby the increase area of dissipation, the radiating rate of raising the utility model.Certainly, two PCB substrates 61 of said LED Column being luminous 6 also can adopt other fixed form, fix, paste like snapping fixing etc., as long as its fixed effect is better.Rivet 62 is arranged at the below of led chip 63.
Lampshade 2 is the candle lampshade, and the light that the led chip 63 that SMT is mounted sends can see through lampshade 2 and shine out, the purpose that reaches illumination or decorate.Certainly, said candle lampshade 2 can be selected for use according to actual application environment and be glass candle lampshade or plastics candle lampshade, also can be transparent candle lampshade or translucent candle lampshade.
Embodiment 2.
The embodiment 2 of the LED bulb of a kind of tunable optical of the utility model; The difference of present embodiment and embodiment 1 is; Lampshade 2 is a globe holder; And globe holder 2 can be selected for use according to actual application environment and be glass globe holder or plastics globe holder, also can be transparent sphere lampshade or translucent spherical lampshade.Certainly, the lampshade 2 of the utility model also can be other shape, is not limited only to candle or sphere.Other structure and the operation principle of present embodiment are identical with embodiment 1, repeat no more at this.
Should be noted that at last; Above embodiment is only in order to explain the technical scheme of the utility model; But not to the restriction of the utility model protection domain, although with reference to preferred embodiment the utility model has been done explanation at length, those of ordinary skill in the art is to be understood that; Can make amendment or be equal to replacement the technical scheme of the utility model, and not break away from the essence and the scope of the utility model technical scheme.
Claims (10)
1. the LED bulb of a tunable optical, it includes lamp holder, lampshade, is positioned at the power supply of lamp holder, is connected with the heat radiating metal shell between lamp holder and the lampshade; The top of heat radiating metal shell is positioned at lampshade; And the top of heat radiating metal shell is fixed with heat-radiating substrate, and heat-radiating substrate is pegged graft and is fixed with the LED Column being luminous, and it is characterized in that: said LED Column being luminous comprises two PCB substrates; The front of two PCB substrates all is pasted with led chip through the SMT surface mounting technology; The PCB substrate is electrically connected with power supply, is gripped with heat dissipation metal plate between the back side of two PCB substrates, and the back side of two PCB substrates all is close to fixing with heat dissipation metal plate.
2. the LED bulb of a kind of tunable optical according to claim 1, it is characterized in that: the led chip that said PCB substrate mounts is more than two or two.
3. the LED bulb of a kind of tunable optical according to claim 2 is characterized in that: the led chip side of the being sheet that said SMT mounts.
4. the LED bulb of a kind of tunable optical according to claim 2 is characterized in that: the led chip that said SMT mounts is arranged in the upper parallel of said PCB substrate.
5. the LED bulb of a kind of tunable optical according to claim 2, it is characterized in that: the led chip that mounts on said two PCB substrates is a plane of symmetry symmetric arrays with said heat dissipation metal plate.
6. the LED bulb of a kind of tunable optical according to claim 1, it is characterized in that: the area of said heat dissipation metal plate side is greater than the area of said PCB substrate back.
7. the LED bulb of a kind of tunable optical according to claim 1, it is characterized in that: said heat-radiating substrate, said PCB substrate are the heat-radiating aluminum plate, and said heat dissipation metal plate is a copper sheet.
8. the LED bulb of a kind of tunable optical according to claim 1 is characterized in that: be fixed with insulation sleeve in the bottom of said heat radiating metal shell.
9. the LED bulb of a kind of tunable optical according to claim 1, it is characterized in that: the two PCB substrates and the said heat dissipation metal plate of said LED Column being luminous are fixed through rivet, and rivet is arranged at the below of said led chip.
10. according to the LED bulb of any described a kind of tunable optical of claim 1 to 9, it is characterized in that: said lampshade is candle lampshade or globe holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203674281U CN202302822U (en) | 2011-09-30 | 2011-09-30 | A Dimmable LED Bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203674281U CN202302822U (en) | 2011-09-30 | 2011-09-30 | A Dimmable LED Bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202302822U true CN202302822U (en) | 2012-07-04 |
Family
ID=46371711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203674281U Expired - Fee Related CN202302822U (en) | 2011-09-30 | 2011-09-30 | A Dimmable LED Bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202302822U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016991A (en) * | 2012-12-24 | 2013-04-03 | 上海顿格电子贸易有限公司 | Bulb of inclined and rotary combined LED (Light Emitting Diode) lamp filament structure |
| CN103742801A (en) * | 2013-12-13 | 2014-04-23 | 蔡干强 | Light-emitting diode (LED) single-tube energy-saving lamp |
-
2011
- 2011-09-30 CN CN2011203674281U patent/CN202302822U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016991A (en) * | 2012-12-24 | 2013-04-03 | 上海顿格电子贸易有限公司 | Bulb of inclined and rotary combined LED (Light Emitting Diode) lamp filament structure |
| CN103742801A (en) * | 2013-12-13 | 2014-04-23 | 蔡干强 | Light-emitting diode (LED) single-tube energy-saving lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120704 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |