CN102155665A - LED (light emitting diode) lamp bulb with high light-emitting rate - Google Patents
- ️Wed Aug 17 2011
CN102155665A - LED (light emitting diode) lamp bulb with high light-emitting rate - Google Patents
LED (light emitting diode) lamp bulb with high light-emitting rate Download PDFInfo
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- CN102155665A CN102155665A CN2011100935208A CN201110093520A CN102155665A CN 102155665 A CN102155665 A CN 102155665A CN 2011100935208 A CN2011100935208 A CN 2011100935208A CN 201110093520 A CN201110093520 A CN 201110093520A CN 102155665 A CN102155665 A CN 102155665A Authority
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- China Prior art keywords
- high light
- emitting rate
- resistance
- bulb
- rate led Prior art date
- 2011-04-14 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.)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to an LED (light emitting diode) lamp bulb with a high light-emitting rate, comprising a lamp holder, a lamp shell, an LED driver and a lamp bulb cover, wherein the lamp holder is connected with the upper end of the lamp shell, the LED driver is arranged in the lamp shell, the lower end of the lamp shell is connected with the lamp bulb cover, the LED lamp bulb also comprises a transparent lamp post with high heat-conducting property, the transparent lamp post is arranged in the lamp bulb cover, the upper part of the transparent lamp post is connected with the lower end of the lamp shell, an LED lamp bar with a high light-emitting rate is arranged on the transparent lamp post and comprises a plurality of LED chips which are connected in series, transparent or semitransparent high heat-conduction fillers are filled in a cavity between the outer side of the transparent lamp post and the lamp bulb cover. For the LED lamp bulb with the high light-emitting rate, the light-emitting rate is improved and the heat dispersion property is enhanced.
Description
Technical field
The present invention relates to a kind of LED 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 invention provides a kind of high light-emitting rate LED bulb that promotes light emission rate, strengthens heat dispersion.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high light-emitting rate LED bulb, comprise lamp holder, lamp housing, led driver and bulb shield, described lamp holder is connected with the lamp housing upper end, described led driver is installed in the described lamp housing, described lamp housing lower end is connected with bulb shield, described LED bulb also comprises the transparent lamppost of high thermal conductivity, described transparent lamppost is positioned at described bulb shield, the top of described transparent lamppost is connected with described lamp housing lower end, described high light-emitting rate LED lamp bar is installed on the described transparent lamppost, described high light-emitting rate LED lamp bar comprises a plurality of led chips of series connection successively, fills transparent or semitransparent high-termal conductivity filler in the cavity between the outside of described transparent lamppost and the described bulb shield.
Transparent or semitransparent high-termal conductivity filler among the present invention, can select transparent high thermal conductivity material or translucent high conduction material, the transparent or semitransparent pottery of aluminium nitride for example, as long as the light that described high light-emitting rate LED lamp bar sends can be transmitted, certainly, also can adopt the transparent or semitransparent high-termal conductivity material of other materials.
High-termal conductivity filler among the present invention can be full of the outside of described transparent lamppost and the cavity between the described bulb shield, also can be local the filling; Situation for the part filling, require upwards to fill from the bottom of bulb shield earlier, at least filler contacts with the bottom surface of described transparent lamppost, preferred scheme is that filler contacts simultaneously with the side all around of described transparent lamppost simultaneously, and this structure can in time be dispersed the heat that described high light-emitting rate LED lamp bar produces by filler.
Among the present invention, filler and bulb shield can be one, and promptly bulb shield adopts identical transparent or semitransparent highly heat-conductive material with filler, and incorporate structure is convenient to processing; Certainly, also can be separate version.
Buckle-type is connected between the upper end of transparent lamppost and the described lamp housing, certainly, also can adopt other connected modes.
Further, the side of described transparent lamppost has vertical groove, and the high light-emitting rate LED lamp bar is installed in the described vertical groove.
Described transparent lamppost can be solid construction, also can be hollow-core construction, perhaps is Openworks shape; Certainly, also can adopt other versions.
Or: described transparent lamppost is stairstepping, the lower section of described transparent lamppost is littler than top cross section, the place has annular groove at step, the high light-emitting rate LED lamp bar is installed in the described annular groove, when described step has when a plurality of, can on a plurality of steps, arrange many high light-emitting rate LED lamp bars respectively.Certainly, also can adopt other assembling mode.
The bottom surface of described transparent lamppost has annular groove, and the high light-emitting rate LED lamp bar is installed in the described annular groove.Belong to white or other colors for bulb shield, if have only the high light-emitting rate LED lamp bar of vertical layout, then be easy to generate shade in the bottom of bulb shield, add the high light-emitting rate LED lamp bar 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 the high light-emitting rate LED lamp bar then is not set yet.
Light source in the described high light-emitting rate LED lamp bar is towards the outside of described vertical groove.Comparatively speaking, in the high light-emitting rate LED lamp bar, 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 heat that produces, comparatively speaking, the heat of light source place direction is more, therefore, light source is installed towards groove is outside, helped more heat is delivered to transparent or semitransparent high-termal conductivity filler, be convenient to realize good heat radiation; Certainly, also can adopt other mounting means, for example adopt the mounting means of light source towards the bottom of described vertical groove.
Light source in the described high light-emitting rate LED lamp bar is towards the outside of described annular groove.Its radiating principle is identical with the high light-emitting rate LED lamp bar; Certainly, also can adopt other mounting means, for example adopt the mounting means of light source towards the bottom of described vertical groove.
The size of described high light-emitting rate LED lamp bar and described vertical groove or annular groove coupling.Be about to described high light-emitting rate LED lamp bar and just be nested in the groove, this structure is convenient to the processing of transparent or semitransparent high heat-conducting filler.
The end face of described transparent lamppost is installed reflector, and this reflector can converge the light of upwards dispersing downwards, can further promote luminous efficiency.
The radiating block of high thermal conductivity is installed on the end face of described transparent lamppost, and the outer wall of described radiating block is connected with the inwall of described lamp housing.By radiating block is set, can play good auxiliary heat dissipation effect.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 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 a high light-emitting rate LED lamp bar in the side of described transparent lamppost, also can arrange two or two above high light-emitting rate LED lamp bars, two or two above high light-emitting rate LED lamp bars are uniformly-spaced arranged.
Beneficial effect of the present invention mainly shows: 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 first kind of high light-emitting rate LED bulb.
Fig. 2 is the schematic diagram of second kind of high light-emitting rate LED bulb.
Fig. 3 is the schematic diagram of the third high light-emitting rate LED bulb.
Fig. 4 is the schematic cross-section of Fig. 3.
Fig. 5 is the schematic diagram of the 4th kind of high light-emitting rate LED bulb.
Fig. 6 is the schematic diagram of the 5th kind of high light-emitting rate LED bulb.
Fig. 7 is a kind of schematic diagram of drive circuit.
Fig. 8 is the schematic diagram of another kind of drive circuit.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
With reference to Fig. 1～Fig. 8, a kind of high light-emitting rate LED bulb, comprise
lamp holder1,
lamp housing2,
led driver6 and
bulb shield5, described
lamp holder1 is connected with
lamp housing2 upper ends, in the described
lamp housing2 described
led driver6 is installed, described
lamp housing2 lower ends are connected with
bulb shield5, described LED bulb also comprises the
transparent lamppost3 of high thermal conductivity, described
transparent lamppost3 is positioned at described
bulb shield5, the top of described
transparent lamppost3 is connected with described
lamp housing2 lower ends, described high light-emitting rate
LED lamp bar4 is installed on the described
transparent lamppost3, described high light-emitting rate
LED lamp bar4 comprises a plurality of led chips of series connection successively, fills transparent or semitransparent high-termal conductivity filler in the cavity between the outside of described
transparent lamppost3 and the described
bulb shield5.
Transparent or semitransparent high-termal conductivity filler in the present embodiment, can select transparent high thermal conductivity material or translucent high conduction material, the transparent or semitransparent pottery of aluminium nitride for example, as long as can transmit with stating the light that high light-emitting rate
LED lamp bar4 sends, certainly, also can adopt the transparent or semitransparent high-termal conductivity material of other materials.
High-termal conductivity filler among the present invention can be full of the outside of described transparent lamppost and the cavity between the described bulb shield, also can be local the filling; Situation for the part filling, require upwards to fill from the bottom of bulb shield earlier, at least filler contacts with the bottom surface of described transparent lamppost, preferred scheme is that filler contacts simultaneously with the side all around of described transparent lamppost simultaneously, and this structure can in time be dispersed the heat that described high light-emitting rate LED lamp bar produces by filler.
Among the present invention, filler and bulb shield can be one, and promptly bulb shield adopts identical transparent or semitransparent highly heat-conductive material with filler, and incorporate structure is convenient to processing; Certainly, also can be separate version.
Buckle-type is connected between the upper end of transparent lamppost and the described lamp housing, certainly, also can adopt other connected modes.
The side of described
transparent lamppost3 has vertical groove, and high light-emitting rate
LED lamp bar4 is installed in the described vertical groove; Or: described
transparent lamppost3 is stairstepping, the lower section of described
transparent lamppost3 is littler than top cross section, the place has annular groove at step, and high light-emitting rate
LED lamp bar4 is installed in the described annular groove, and described high light-emitting rate
LED lamp bar4 comprises a plurality of led chips of series connection successively.Certainly, also can adopt other assembling mode.
Described
transparent lamppost3 can be solid construction, also can be hollow-core construction, perhaps is Openworks shape; Certainly, also can adopt other versions.
The bottom surface of described
transparent lamppost3 has annular groove, and high light-emitting rate
LED lamp bar4 is installed in the described annular groove.Belong to white or other colors for
bulb shield5, if have only the high light-emitting rate LED lamp bar of vertical layout, then be easy to generate shade in the bottom of bulb shield, add the high light-emitting rate LED lamp bar 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 the high light-emitting rate LED lamp bar then is not set yet.
Light source in the described high light-emitting rate
LED lamp bar4 is towards the outside of described vertical groove.Comparatively speaking, in the high light-emitting rate LED lamp bar, 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 heat that produces, comparatively speaking, the heat of light source place direction is more, therefore, light source is installed towards groove is outside, helped more heat is delivered to transparent or semitransparent high-termal conductivity filler, be convenient to realize good heat radiation; Certainly, also can adopt other mounting means, for example adopt the mounting means of light source towards the bottom of described vertical groove.
Light source in the described high light-emitting rate
LED lamp bar4 is towards the outside of described annular groove.Its radiating principle is identical with the high light-emitting rate LED lamp bar; Certainly, also can adopt other mounting means, for example adopt the mounting means of light source towards the bottom of described vertical groove.
The size of described high light-emitting rate
LED lamp bar4 and described vertical groove or annular groove coupling.Be about to described high light-emitting rate LED lamp bar and just be nested in the groove, this structure is convenient to the processing of transparent or semitransparent high heat-conducting filler.
The end face of described
transparent lamppost3 is installed
reflector7, and this
reflector7 can converge the light of upwards dispersing downwards, can further promote luminous efficiency.
The radiating
block8 of high thermal conductivity is installed on the end face of described
transparent lamppost3, and the outer wall of described radiating
block8 is connected with the inwall of described lamp housing 2.By radiating
block8 is set, can play good auxiliary heat dissipation effect.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.
Described
lamp housing2 adopts the high thermal conductivity material, and the wall of the bottom of described
lamp housing2 is thicker than the wall on top, and this structure helps heat radiation.Certainly,
lamp housing2 also can adopt the wall uniform thickness, perhaps other modes.
The cross section of described
lamp housing2 is rounded, square, rhombus, ellipse or regular polygon.Certainly, also can adopt other shapes.
The bottom transverse section ratio top cross section of described
transparent lamppost3 is little.Certainly, also can adopt prismatic version.
The cross section of described
transparent lamppost3 is rounded, square, rhombus or ellipse.Certainly, also can adopt other shapes.Can arrange a high light-emitting rate LED lamp bar in the side of described
transparent lamppost3, also can arrange two or two above high light-emitting rate LED lamp bars, two or two above high light-emitting rate LED lamp bars are uniformly-spaced arranged.
The bulb shield of present embodiment is 5 rounded, square, rhombus or ellipse.Certainly, also can adopt other shapes.With reference to Fig. 3, bulb shield is elongated, and with reference to Fig. 4, bulb shield is a rectangle, and the two ends of bulb shield are equipped with the structure of lamp housing and lamp holder.
With reference to Fig. 7, the drive circuit of
led driver6, comprise
first capacitor C1,
first resistance R1, rectification circuit D1, filter capacitor C2 and
second resistance R2, the civil power incoming end is connected with described
first capacitor C1, described
first resistance R1 and 1 parallel connection of first capacitor C, the other end of described
first capacitor C1 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 R2 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. 8, led
driver6 comprise
first capacitor C1,
first resistance R1, rectification circuit D1, the filter capacitor C2 and
second resistance R2, the civil power incoming end is connected with described
first capacitor C1, described
first resistance R1 and 1 parallel connection of first capacitor C, the other end of described
first capacitor C1 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 R2 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 inventive concept; protection scope of the present invention should not be regarded as only limiting to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (10)
1. high light-emitting rate LED bulb, comprise lamp holder, lamp housing, led driver and bulb shield, described lamp holder is connected with the lamp housing upper end, described led driver is installed in the described lamp housing, described lamp housing lower end is connected with bulb shield, it is characterized in that: described LED bulb also comprises the transparent lamppost of high thermal conductivity, described transparent lamppost is positioned at described bulb shield, the top of described transparent lamppost is connected with described lamp housing lower end, described high light-emitting rate LED lamp bar is installed on the described transparent lamppost, described high light-emitting rate LED lamp bar comprises a plurality of led chips of series connection successively, fills transparent or semitransparent high-termal conductivity filler in the cavity between the outside of described transparent lamppost and the described bulb shield.
2. high light-emitting rate LED bulb as claimed in claim 1 is characterized in that: the side of described transparent lamppost has vertical groove, and described high light-emitting rate LED lamp bar is installed in the described vertical groove.
3. high light-emitting rate LED bulb as claimed in claim 1 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 the high light-emitting rate LED lamp bar is installed in the described annular groove.
4. as the described high light-emitting rate LED bulb of one of claim 1～3, it is characterized in that: described transparent or semitransparent high-termal conductivity filler and bulb shield are one.
5. high light-emitting rate LED bulb as claimed in claim 2, it is characterized in that: the bottom surface of described transparent lamppost has annular groove, the high light-emitting rate LED lamp bar is installed in the described annular groove, and the light source of described high light-emitting rate LED lamp bar is towards the outside of described vertical groove and annular groove.
6. high light-emitting rate LED bulb as claimed in claim 4 is characterized in that: the size of described high light-emitting rate LED lamp bar and described vertical groove or annular groove coupling.
7. as the described high light-emitting rate LED bulb of one of claim 1～3, it is characterized in that: the end face of described transparent lamppost is installed reflector.
8. as the described high light-emitting rate LED bulb of one of claim 1～3, it is characterized in that: the radiating block of high thermal conductivity is installed on the end face of described transparent lamppost, and the outer wall of described radiating block is connected with the inwall of described lamp housing.
9. as the described high light-emitting rate LED bulb of one of claim 1～3, 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.
10. as the described high light-emitting rate LED bulb of one of claim 1～3, 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.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100935208A CN102155665A (en) | 2011-04-14 | 2011-04-14 | LED (light emitting diode) lamp bulb with high light-emitting rate |
| PCT/CN2011/072926 WO2012139306A1 (en) | 2011-04-14 | 2011-04-18 | Led bulb with high light-emitting efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100935208A CN102155665A (en) | 2011-04-14 | 2011-04-14 | LED (light emitting diode) lamp bulb with high light-emitting rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102155665A true CN102155665A (en) | 2011-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100935208A Pending CN102155665A (en) | 2011-04-14 | 2011-04-14 | LED (light emitting diode) lamp bulb with high light-emitting rate |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102155665A (en) |
| WO (1) | WO2012139306A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090230A (en) * | 2013-01-21 | 2013-05-08 | 翁小翠 | High luminescence efficiency light-emitting diode (LED) bulb |
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| CN112228786A (en) * | 2020-10-26 | 2021-01-15 | 德清欧尚照明科技有限公司 | Bulb with built-in resistor |
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