CN201992435U - 4-Phi light extraction LED (light-emitting diode) spherical bulb - Google Patents
4-Phi light extraction LED (light-emitting diode) spherical bulb Download PDFInfo
- Publication number
- CN201992435U CN201992435U CN2011200994146U CN201120099414U CN201992435U CN 201992435 U CN201992435 U CN 201992435U CN 2011200994146 U CN2011200994146 U CN 2011200994146U CN 201120099414 U CN201120099414 U CN 201120099414U CN 201992435 U CN201992435 U CN 201992435U
- Authority
- CN
- China
- Prior art keywords
- led
- resistance
- filter capacitor
- rectification circuit
- diode
- 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
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A 4-Phi light extraction LED spherical bulb comprises a connector, an LED driver, a bulb cover and a heat-dissipating ring, wherein the upper end of the heat-dissipating ring is connected with the connector, the lower end of the heat-dissipating ring is connected with the bulb cover, a heat-dissipating block with high heat-conducting property is mounted in the heat-dissipating ring, the outer wall of the heat-dissipating block is connected with the inner wall of the heat-dissipating ring, a transparent light column with high heat-conducting property is mounted on the bottom surface of the heat-dissipating block, 4-Phi LED light bars are mounted on the transparent light column, each 4-Phi LED light bar comprises a plurality of LED chips which are sequentially connected in series, and the LED driver is mounted in the heat-dissipating ring, and is electrically connected with the 4-Phi LED light bars. The LED spherical bulb provided by the utility model has the advantages of higher light extraction efficiency and higher heat dispersion.
Description
Technical field
The utility model relates to a kind of LED ball bulb.
Background technology
Existing LED bulb, led chip is installed on substrate bottom surface usually, the LED substrate adopts the good material of heat conductivility usually, described substrate is provided with electric power connection interface, described electric power connection interface is electrically connected with electric power connection line, and described substrate is provided with printed circuit, a plurality of led chips of arranged on the described substrate, described led chip comprises current-limiting resistance and voltage-stablizer, and described current-limiting resistance all is connected with described printed circuit with voltage-stablizer.
Because the light that sends of led chip is dispersed downwards, its range of exposures be substrate with the lower part, promptly realize 2 π bright dippings, part light shines the bottom surface of substrate, has reduced the light emission rate of led light source, in addition, is provided with because whole base plate is the plane, heat dispersion is relatively poor.
Summary of the invention
In order to overcome the deficiency that light emission rate is lower, heat dispersion is relatively poor of existing LED lamp, the utility model provides a kind of 4 π light extracting LED ball bulbs that promote light emission rate, strengthen heat dispersion.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of 4 π light extracting LED ball bulbs, comprise joint, led driver and bulb shield, described LED ball bulb also comprises heat dissipating ring, the upper end of described heat dissipating ring is connected with described joint, the lower end of described heat dissipating ring is connected with described bulb shield, the radiating block of high thermal conductivity is installed in the described heat dissipating ring, the outer wall of described radiating block is connected with the inwall of described heat dissipating ring, the transparent lamppost of high thermal conductivity is installed in the bottom surface of described radiating block, described 4 π LED lamp bars are installed on the described lens lamppost, described 4 π LED lamp bars comprise a plurality of led chips of series connection successively, and led driver is installed in the inside of described heat dissipating ring, and described led driver is electrically connected with described 4 π LED lamp bars.
Further, the side of described transparent lamppost has vertical groove, and 4 π LED lamp bars are installed in the described vertical groove.
Or: described transparent lamppost is stairstepping, the lower section of described transparent lamppost is littler than top cross section, and the place has annular groove at step, and 4 π LED lamp bars are installed in the described annular groove, when described step has when a plurality of, can on a plurality of steps, arrange many 4 π LED lamp bars respectively.Certainly, also can adopt other assembling mode.
Further, described radiating block and described transparent lamppost are one.Certainly, radiating block and transparent lamppost also can be mutual independent structures, as long as both are fixed together.
The bottom surface of described transparent lamppost has annular groove, and 4 π LED lamp bars are installed in the described annular groove.Belong to white or other colors for bulb shield, if have only 4 π LED lamp bars of vertical layout, then be easy to generate shade in the bottom of bulb shield, add 4 π LED lamp bars in the bottom surface of lamppost, not only can increase luminous power, also can effectively eliminate the shade of bulb shield bottom; Certainly, if adopt transparent bulb shield,, can on bulb shield, not produce shade even if 4 π LED lamp bars then are not set yet.
Light source in the described 4 π LED lamp bars is towards the bottom of described vertical groove.Comparatively speaking, in the 4 π LED lamp bars, led chip comprises transparency carrier and light source, and transparency carrier and light source all are coated in the transparent silica gel, wherein the light that sends of light source to around disperse, for the waste heat that produces, comparatively speaking, the waste heat of light source place direction is more, therefore, light source is installed towards bottom portion of groove, helped more waste heat is delivered to transparent lamppost, be convenient to realize good heat radiation; Certainly, also can adopt other mounting means, for example adopt light source to deviate from the mounting means of the bottom of described vertical groove.
Light source in the described 4 π LED lamp bars is towards the bottom of described annular groove.Its radiating principle is identical with 4 π LED lamp bars; Certainly, also can adopt other mounting means, for example adopt light source to deviate from the mounting means of the bottom of described vertical groove.
The cross section semicircular in shape of described vertical groove or parabola shaped, certainly, also can adopt other shapes, as long as its shape equates with the half section shape of 4 π LED lamp bars, soon half of 4 π LED lamp bars is mounted in the vertical groove, can increase contact area, be convenient to realize good heat radiation.
The cross section semicircular in shape of described annular groove or parabola shaped, certainly, also can adopt other shapes, as long as its shape equates with the half section shape of 4 π LED lamp bars, soon half of 4 π LED lamp bars is mounted in the annular groove, can increase contact area, be convenient to realize good heat radiation.
The drive circuit of described led driver comprises first electric capacity, first resistance, rectification circuit, filter capacitor and second resistance, the civil power incoming end is connected with described first electric capacity, described first resistance and the first electric capacity parallel connection, the other end of described first electric capacity is connected with the input side of described rectification circuit, the two ends of the outlet side of described rectification circuit are connected with filter capacitor, described second resistance is in parallel with described filter capacitor, and the two ends of described filter capacitor are connected with two drive circuit output interfaces.
The drive circuit of described led driver comprises first electric capacity, first resistance, rectification circuit, filter capacitor, second resistance and power factor promote circuit, the civil power incoming end is connected with described first electric capacity, described first resistance and the first electric capacity parallel connection, the other end of described first electric capacity is connected with the input side of described rectification circuit, the positive terminal of the outlet side of described rectification circuit is connected with second resistance, one end and filter capacitor are anodal simultaneously, the negative pole end of the outlet side of described rectification circuit connects with the described second resistance other end, described power factor promotes circuit and comprises second diode, the 3rd diode, the 4th diode and auxiliary filter capacitor, the negative pole of described filter capacitor is connected with the backward end of second diode and the forward end of the 3rd diode simultaneously, the forward end of described second diode is connected with the negative pole end of the outlet side of described rectification circuit, the positive terminal of the outlet side of described rectification circuit is connected with the backward end of the 4th diode, the backward end while of described the 3rd diode and the forward end of the 4th diode, the positive pole of auxiliary filter capacitor connects, the negative pole of described auxiliary filter capacitor is connected with the negative pole end of the outlet side of described rectification circuit, and the described second resistance two ends are connected with two drive circuit output interfaces.
One end of described filter capacitor connects current-limiting resistance, and described current-limiting resistance is connected the bridge rectifier of described rectification circuit with a drive circuit output interface.
The bottom transverse section ratio top cross section of described transparent lamppost is little.Certainly, also can adopt prismatic version.
The cross section of described transparent lamppost is rounded, square, rhombus or ellipse.Certainly, also can adopt other shapes.
Can arrange one 4 π LED lamp bar in the side of described transparent lamppost, also can arrange 4 π LED lamp bars more than two or two, 4 π LED lamp bars are uniformly-spaced arranged more than two or two.
The beneficial effects of the utility model mainly show: 1, improve light utilization efficiency, promote heat dispersion; 2, owing to avoid adopting transformer, simplified the circuit composition, the no higher-order of oscillation, electromagnetic-radiation-free have reduced energy consumption, have improved power supply conversion efficiency simultaneously; 3, adopt current-limiting resistance, when supply voltage generation unusual fluctuations, effectively reduce the operating current of LED lamp, play the effect of protection LED; 4, add the power factor of forming by three diodes and the 3rd electric capacity and promote circuit, can effectively adapt to the High Power Factor occasion.
Description of drawings
Fig. 1 is the schematic diagram of 4 π light extracting LED ball bulbs.
Fig. 2 is the schematic diagram of lamppost.
Fig. 3 is the upward view of Fig. 2.
Fig. 4 is a kind of schematic diagram of drive circuit.
Fig. 5 is the schematic diagram of another kind of drive circuit.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 1～Fig. 5, a kind of 4 π light extracting LED ball bulbs, comprise joint 1, led driver 2 and bulb shield 3, described LED ball bulb also comprises heat dissipating ring 4, the upper end of described heat dissipating ring 4 is connected with described joint 1, the lower end of described heat dissipating ring 4 is connected with described bulb shield 3, the radiating block 5 of high thermal conductivity is installed in the described heat dissipating ring 4, the outer wall of described radiating block 5 is connected with the inwall of described heat dissipating ring 4, the transparent lamppost 6 of high thermal conductivity is installed in the bottom surface of described radiating block 5, described 4 π LED lamp bars are installed on the described lens lamppost, described 4 π LED lamp bars 7 comprise a plurality of led chips of series connection successively, led driver 2 is installed in the inside of described heat dissipating ring 4, and described led driver 2 is electrically connected with described 4 π LED lamp bars 7.
The side of described transparent lamppost 6 has vertical groove, and 4 π LED lamp bars 7 are installed in the described vertical groove; Or: described transparent lamppost is stairstepping, and the lower section of described transparent lamppost is littler than top cross section, and the place has annular groove at step, and 4 π LED lamp bars are installed in the described annular groove, and described 4 π LED lamp bars comprise a plurality of led chips of series connection successively.Certainly, also can adopt other assembling mode.
Described radiating block 5 is one with described transparent lamppost 6.Certainly, radiating block 5 and transparent lamppost 6 also can be mutual independent structures, as long as both are fixed together.
The bottom surface of described transparent lamppost 6 has annular groove, and 4 π LED lamp bars 7 are installed in the described annular groove.Belong to white or other colors for bulb shield 3, if have only 4 π LED lamp bars of vertical layout, then be easy to generate shade in the bottom of bulb shield, add 4 π LED lamp bars in the bottom surface of lamppost, not only can increase luminous power, also can effectively eliminate the shade of bulb shield bottom; Certainly, if adopt transparent bulb shield,, can on bulb shield, not produce shade even if 4 π LED lamp bars then are not set yet.
Light source in the described 4 π LED lamp bars 7 is towards the bottom of described vertical groove.Comparatively speaking, in the 4 π LED lamp bars, led chip comprises substrate and light source, and substrate and light source all are coated in the transparent silica gel, wherein the light that sends of light source to around disperse, for the waste heat that produces, comparatively speaking, the waste heat of light source place direction is more, therefore, light source is installed towards bottom portion of groove, helped more waste heat is delivered to transparent lamppost, be convenient to realize good heat radiation; Certainly, also can adopt other mounting means, for example adopt light source to deviate from the mounting means of the bottom of described vertical groove.
Light source in the described 4 π LED lamp bars 7 is towards the bottom of described annular groove.Its radiating principle is identical with 4 π LED lamp bars; Certainly, also can adopt other mounting means, for example adopt light source to deviate from the mounting means of the bottom of described vertical groove.
The cross section semicircular in shape of described vertical groove or parabola shaped, certainly, also can adopt other shapes, as long as its shape equates with the half section shape of 4 π LED lamp bars 7, soon half of 4 π LED lamp bars is mounted in the vertical groove, can increase contact area, be convenient to realize good heat radiation.
The cross section semicircular in shape of described annular groove or parabola shaped, certainly, also can adopt other shapes, as long as its shape equates with the half section shape of 4 π LED lamp bars, soon half of 4 π LED lamp bars is mounted in the annular groove, can increase contact area, be convenient to realize good heat radiation.
The wall of described heat dissipating ring 4 bottoms is thicker than the wall on top, and this structure helps heat radiation.Certainly, heat dissipating ring also can adopt the wall uniform thickness, perhaps other modes.
The cross section of described heat dissipating ring 4 is rounded, square, rhombus, ellipse or regular polygon.Certainly, also can adopt other shapes.
In the present embodiment, radiating block 5 has good heat conductive performance and thermal radiation property, heat in time can be got rid of, and the heat on the LED substrate is in time got rid of by heat-conducting piece, has good heat-conducting, has effectively guaranteed the LED operating temperature, has prolonged service life.
The bottom transverse section ratio top cross section of described transparent lamppost 6 is little.Certainly, also can adopt prismatic version.
The cross section of described transparent lamppost 6 is rounded, square, rhombus or ellipse.Certainly, also can adopt other shapes.Can arrange one 4 π LED lamp bar in the side of described transparent lamppost 6, also can arrange 4 π LED lamp bars more than two or two, 4 π LED lamp bars are uniformly-spaced arranged more than two or two.
The bulb shield of present embodiment is 3 rounded, square, rhombus or ellipse.Certainly, also can adopt other shapes.
With reference to Fig. 4, the drive circuit of led driver 2, comprise first capacitor C 1, first resistance R 1, rectification circuit D1, filter capacitor C2 and second resistance R 2, the civil power incoming end is connected with described first capacitor C 1, described first resistance R 1 and 1 parallel connection of first capacitor C, the other end of described first capacitor C 1 is connected with the input side of described rectification circuit D1, the two ends of the outlet side of described rectification circuit D1 are connected with filter capacitor C2, described second resistance R 2 is in parallel with described filter capacitor C2, and the two ends of described filter capacitor C2 are connected with two drive circuit output interfaces.
The end of described filter capacitor C2 connects current-limiting resistance R3, and described current-limiting resistance R3 is connected with a drive circuit output interface.Described rectification circuit D1 is a bridge rectifier.Certainly, also can select for use other rectification circuits commonly used to realize.
In the present embodiment, with respect to prior art, do not adopt IC chip and transformer, adopt the capacitance-resistance mode to come step-down, obtain dc source by rectifying and wave-filtering again after the step-down, this dc source provides little electric current high-voltage LED lamp to drive, and existing do not have high-frequency agitation source for available circuit, thereby do not have high frequency radiation, the required voltage and current parameter of led light source work is adjusted by the capacitance numerical value in the circuit (first capacitor C 1); Preferably, the output of power supply is through series resistance current limliting rear drive led light source.
With reference to Fig. 5, led driver 2 comprise first capacitor C 1, first resistance R 1, rectification circuit D1, the filter capacitor C2 and second resistance R 2, the civil power incoming end is connected with described first capacitor C 1, described first resistance R 1 and 1 parallel connection of first capacitor C, the other end of described first capacitor C 1 is connected with the input side of described rectification circuit D1, the positive terminal of the outlet side of described rectification circuit D1 is connected with second resistance R, 2 one ends and second capacitor C, 2 positive poles simultaneously, the negative pole end of the outlet side of described rectification circuit D1 is connected with described second resistance R, 2 other ends, described power factor promotes circuit and comprises the second diode D2, the 3rd diode D3, the 4th diode D4 and auxiliary filter capacitor C3, the negative pole of described filter capacitor C2 is connected with the backward end of the second diode D2 and the forward end of the 3rd diode D3 simultaneously, the forward end of the described second diode D2 is connected with the negative pole end of the outlet side of described rectification circuit, the positive terminal of the outlet side of described rectification circuit D1 is connected with the backward end of the 4th diode D4, the backward end while of described the 3rd diode D3 and the forward end of the 4th diode D4, the positive pole of auxiliary filter capacitor C3 connects, the negative pole of described auxiliary filter capacitor C3 is connected with the negative pole end of the outlet side of described rectification circuit, and described second resistance R 2 two ends are connected with two drive circuit output interfaces.
Described rectification circuit D1 is a bridge rectifier.Certainly, also can select for use other rectification circuits commonly used to realize.
In the present embodiment, set diode and comprise forward end and backward end, when electric current passes through diode, flow through to backward end from forward end.
In the present embodiment, with respect to prior art, do not adopt IC chip and transformer, adopt the capacitance-resistance mode to come step-down, obtain dc source by rectifying and wave-filtering again after the step-down, this dc source provides little electric current high-voltage LED lamp to drive, and existing do not have high-frequency agitation source for available circuit, thereby do not have high frequency radiation, the required voltage and current parameter of led light source work is adjusted by the capacitance numerical value in the circuit (first capacitor C 1); Preferably, the direct driving LED light source of the output of power supply.
Adopt power factor to promote circuit, can improve the power factor of whole LED lamp drive circuit, effectively satisfying the light source power factor is the High Power Factor occasion.
The described content of the embodiment of this specification only is enumerating the way of realization of utility model design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (10)
1. π light extracting LED ball bulb, comprise joint, led driver and bulb shield, it is characterized in that: described LED ball bulb also comprises heat dissipating ring, the upper end of described heat dissipating ring is connected with described joint, the lower end of described heat dissipating ring is connected with described bulb shield, the radiating block of high thermal conductivity is installed in the described heat dissipating ring, the outer wall of described radiating block is connected with the inwall of described heat dissipating ring, the transparent lamppost of high thermal conductivity is installed in the bottom surface of described radiating block, described 4 π LED lamp bars are installed on the described lens lamppost, described 4 π LED lamp bars comprise a plurality of led chips of series connection successively, led driver is installed in the inside of described heat dissipating ring, and described led driver is electrically connected with described 4 π LED lamp bars.
2. 4 π light extracting LED ball bulbs as claimed in claim 1, it is characterized in that: the side of described transparent lamppost has vertical groove, and described 4 π LED lamp bars are installed in the described vertical groove.
3. 4 π light extracting LED ball bulbs as claimed in claim 1, it is characterized in that: described transparent lamppost is stairstepping, and the lower section of described transparent lamppost is littler than top cross section, and the place has annular groove at step, and 4 π LED lamp bars are installed in the described annular groove.
4. as the described 4 π light extracting LED ball bulbs of one of claim 1～3, it is characterized in that: described radiating block and described transparent lamppost are one.
5. 4 π light extracting LED ball bulbs as claimed in claim 2, it is characterized in that: the bottom surface of described transparent lamppost has annular groove, and 4 π LED lamp bars are installed in the described annular groove.
6. 4 π light extracting LED ball bulbs as claimed in claim 5 is characterized in that: the light source of described 4 π LED lamp bars is towards the bottom of described vertical groove and annular groove.
7. 4 π light extracting LED ball bulbs as claimed in claim 2 is characterized in that: the cross section semicircular in shape of described vertical groove or parabola shaped.
8. 4 π light extracting LED ball bulbs as claimed in claim 1 or 2, it is characterized in that: the drive circuit of described led driver comprises first electric capacity, first resistance, rectification circuit, the filter capacitor and second resistance, the civil power incoming end is connected with described first electric capacity, described first resistance and the first electric capacity parallel connection, the other end of described first electric capacity is connected with the input side of described rectification circuit, the two ends of the outlet side of described rectification circuit are connected with filter capacitor, described second resistance is in parallel with described filter capacitor, and the two ends of described filter capacitor are connected with two drive circuit output interfaces.
9. 4 π light extracting LED ball bulbs as claimed in claim 1 or 2, it is characterized in that: the drive circuit of described led driver comprises first electric capacity, first resistance, rectification circuit, filter capacitor, second resistance and power factor promote circuit, the civil power incoming end is connected with described first electric capacity, described first resistance and the first electric capacity parallel connection, the other end of described first electric capacity is connected with the input side of described rectification circuit, the positive terminal of the outlet side of described rectification circuit is connected with second resistance, one end and filter capacitor are anodal simultaneously, the negative pole end of the outlet side of described rectification circuit connects with the described second resistance other end, described power factor promotes circuit and comprises second diode, the 3rd diode, the 4th diode and auxiliary filter capacitor, the negative pole of described filter capacitor is connected with the backward end of second diode and the forward end of the 3rd diode simultaneously, the forward end of described second diode is connected with the negative pole end of the outlet side of described rectification circuit, the positive terminal of the outlet side of described rectification circuit is connected with the backward end of the 4th diode, the backward end while of described the 3rd diode and the forward end of the 4th diode, the positive pole of auxiliary filter capacitor connects, the negative pole of described auxiliary filter capacitor is connected with the negative pole end of the outlet side of described rectification circuit, and the described second resistance two ends are connected with two drive circuit output interfaces; One end of described filter capacitor connects current-limiting resistance, and described current-limiting resistance is connected the bridge rectifier of described rectification circuit with a drive circuit output interface.
10. 4 π light extracting LED ball bulbs as claimed in claim 1 or 2 is characterized in that: the bottom transverse section ratio top cross section of described transparent lamppost is little.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200994146U CN201992435U (en) | 2011-04-07 | 2011-04-07 | 4-Phi light extraction LED (light-emitting diode) spherical bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200994146U CN201992435U (en) | 2011-04-07 | 2011-04-07 | 4-Phi light extraction LED (light-emitting diode) spherical bulb |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992435U true CN201992435U (en) | 2011-09-28 |
Family
ID=44668925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200994146U Expired - Fee Related CN201992435U (en) | 2011-04-07 | 2011-04-07 | 4-Phi light extraction LED (light-emitting diode) spherical bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992435U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155660A (en) * | 2011-04-07 | 2011-08-17 | 朱婉露 | 4 pi light dipping LED (light emitting diode) ball lamp bulb |
| CN103883905A (en) * | 2014-03-05 | 2014-06-25 | 立达信绿色照明股份有限公司 | Cooling LED lamp with vibration piece |
-
2011
- 2011-04-07 CN CN2011200994146U patent/CN201992435U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155660A (en) * | 2011-04-07 | 2011-08-17 | 朱婉露 | 4 pi light dipping LED (light emitting diode) ball lamp bulb |
| CN102155660B (en) * | 2011-04-07 | 2012-09-26 | 朱婉露 | 4 pi light dipping LED (light emitting diode) ball lamp bulb |
| CN103883905A (en) * | 2014-03-05 | 2014-06-25 | 立达信绿色照明股份有限公司 | Cooling LED lamp with vibration piece |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102155665A (en) | LED (light emitting diode) lamp bulb with high light-emitting rate | |
| CN102155660B (en) | 4 pi light dipping LED (light emitting diode) ball lamp bulb | |
| CN201885039U (en) | LED traffic signal lamp | |
| CN206846353U (en) | A kind of radiator structure of LED light bar | |
| CN201992438U (en) | High light extraction efficiency LED (light-emitting diode) bulb | |
| CN202017935U (en) | 4pi emergent light-emitting diode (LED) ball bulb with high radiating performance | |
| CN201992435U (en) | 4-Phi light extraction LED (light-emitting diode) spherical bulb | |
| CN201096332Y (en) | LED lighting lamp directly switching 220v alternating-current electric network | |
| CN201434251Y (en) | LED lamp tube | |
| CN102095113B (en) | Power type LED (Light Emitting Diode) lamp with high heat conducting property | |
| CN206943847U (en) | A kind of LED that can quickly assemble | |
| CN202674883U (en) | Lamp bulb with heat dissipated easily | |
| CN102168819A (en) | 4 pi light emitting LED (Light Emitting Diode) ball bulb with high heat dissipation performance | |
| CN202109312U (en) | High power LED street lamp | |
| CN201557285U (en) | Improved LED lamp power supply structure | |
| CN203615102U (en) | Regular polygonal LED (light emitting diode) lamp | |
| CN201739990U (en) | Side heat dissipation structure of LED streetlight | |
| CN202253039U (en) | High-power light-emitting diode (LED) lamp | |
| CN203190153U (en) | High-power energy saving lamp | |
| CN201992419U (en) | High-power LED (light-emitting diode) lamp with high heat conducting performance | |
| CN203099435U (en) | Light-emitting diode (LED) lamp | |
| CN206846367U (en) | A kind of LED high-power bulb lamps | |
| CN202101083U (en) | Light-emitting diode (LED) spotlight | |
| CN202580881U (en) | Light-emitting diode (LED) lamp bead | |
| CN201462589U (en) | LED street lamp |
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: 20110928 Termination date: 20130407 |