CN102121578A - LED (light emitting diode) fluorescent lamp - Google Patents
LED (light emitting diode) fluorescent lamp Download PDFInfo
- Publication number
- CN102121578A CN102121578A CN2010100426684A CN201010042668A CN102121578A CN 102121578 A CN102121578 A CN 102121578A CN 2010100426684 A CN2010100426684 A CN 2010100426684A CN 201010042668 A CN201010042668 A CN 201010042668A CN 102121578 A CN102121578 A CN 102121578A
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- Prior art keywords
- led
- fluorescent lamp
- lamp
- fluorescent
- triode
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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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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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
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K9/275—Details of bases or housings, i.e. the parts between the light-generating element and the end caps; Arrangement of components within bases or housings
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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
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
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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
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
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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
- H05B45/395—Linear regulators
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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
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
- F21K9/272—Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts
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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
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
- F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Landscapes
- 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)
Abstract
The embodiment of the invention discloses an LED (light emitting diode) fluorescent lamp which comprises a fluorescent lamp tube, fluorescent lamp end covers and a constant current source circuit, wherein the fluorescent lamp end covers are installed at two ends of the fluorescent lamp tube; the constant current source circuit is connected between an LED lamp bank in the fluorescent lamp tube and the metal needles of the end covers, and is used for supplying electricity for the LED lamp bank. The LED fluorescent lamp is characterized in that the fluorescent lamp tube comprises a tube body; the tube body is composed of an arc-shaped metal sectional material and a transmitting lamp cover which is arranged above the metal sectional material; the part, which is positioned at the inner side of the tube body, of the metal sectional material is provided with a clamping groove; a flexible PCB (printed circuit board) which has bending radian same as that of the metal sectional material is buckled on the clamping groove; and the LED lamp bank is welded on the flexible PCB. The LED fluorescent lamp has good radiation performance, and the secondary grading effect of the LED is good.
Description
Technical field
The present invention relates to electronic applications, relate in particular to a kind of LED fluorescent lamp.
Background technology
The huge advantage of the energy-saving and environmental protection that led light source had makes it have fabulous application prospect aspect commercial lighting, and the LED fluorescent lamp is a product the most widely in the commercial lighting.As everyone knows, led light source can produce a large amount of heats in luminous, and therefore how light source is dispelled the heat is the focus that industry is discussed always.Fig. 1 shows the profile of a kind of LED fluorescent tube commonly used in the market, as seen from the figure, the LED fluorescent tube generally include the bottom arc aluminium plate 10, be buckled in the printed circuit board (PCB) (PCB on the described arc aluminium plate 10, Printed Circuit Board) plate 11, the transparent lamp shade 13 that is welded on the led light source 12 on the described pcb board and covers on arc aluminium plate 10 tops, in this kind LED fluorescent lamp, the heat that led light source produces dispels the heat by the aluminium plate 10 that pcb board exports to the bottom.But as can be seen from Figure 1, the pcb board level that led light source is installed is installed in the fluorescent tube, and described PCB contacts with the aluminium plate level, and its radiating surface only is the contact plane of the two, and its radiating effect is not good.In addition, pcb board is to lie in a horizontal plane in the secondary light-distribution that also is unfavorable for light source in the LED fluorescent tube.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of LED fluorescent lamp is provided, and the thermal diffusivity of this fluorescent lamp is good, and the secondary light-distribution of LED is effective.
Given this, a kind of LED fluorescent lamp that the embodiment of the invention provides, fluorescent-lamp tube, be installed in the fluorescent lamp end cap at described fluorescent-lamp tube two ends, and be connected the constant-current source circuit that is used between the metal needle of LED lamp group in the described fluorescent-lamp tube and described end cap to described LED lamp group power supply, it is characterized in that, described fluorescent-lamp tube comprises a body, described body is made of curved shape and the transparent lamp shade that is installed in shape top, the part that described shape is positioned at the body inboard is provided with draw-in groove, buckle has the flexible PCB plate consistent with the crooked radian of described shape on the described draw-in groove, is welded with LED lamp group on the described flexible PCB plate.
Preferable, the opposite face that welds led light source at described pcb board posts the layer of metal thermal conductive belt.
Preferable, described fluorescent lamp end cap comprises the metal tube of a both ends open, and an opening part of described metal tube is fixed with a plastic body, and described plastic body is provided with the metal needle that is used to connect power supply.
Preferable, the opening of described fixedly plastic body narrows with respect to the body of described metal tube.
Preferable, described constant-current source circuit comprise be used for will input the alternating voltage constant-current source structural circuit that becomes the rectification circuit of DC voltage and be connected described rectification circuit rear end, described constant-current source structural circuit comprises first resistance, second resistance, first triode and second triode, wherein, one end of the LED lamp group in the input of described first resistance and the output of described rectification circuit and the described fluorescent lamp links to each other, the output of described first resistance links to each other respectively with the base stage of described first triode and the colelctor electrode of described second triode, the emitter stage of described first triode links to each other respectively with the base stage of described second triode and the input of described second resistance, the other end of the described LED lamp group in the colelctor electrode of described first triode and the described fluorescent lamp links to each other, and the emitter stage of the output of described second resistance and described second triode links to each other.
Preferable, described constant-current source circuit also comprises a filter capacitor, and the one end links to each other with the input of described first resistance, and the other end links to each other with the output of described second resistance.
LED fluorescent lamp provided by the present invention, in the LED fluorescent tube, the pcb board that is welded with led light source is buckled on the described shape in the crooked radian mode consistent with the shape crooked radian, because pcb board and shape are radian, therefore increased area of dissipation, make the thermal diffusivity of LED fluorescent tube better with respect to the prior art scheme, in addition, the arcwall face of pcb board and shape has constituted the secondary light-distribution face, make the secondary light-distribution better effects if of led light source, in addition, the pcb board structure of arc makes led light source farther with respect to prior art apart from the distance of transparent lamp shade, can increase effective mixed light of lampshade, and reduce dazzle.In addition, the end cap of LED fluorescent lamp provided by the invention, comprise both ends open metal tube and, be fastened on band metal needle plastic body formation on the described metal tube, appearance looks elegant, because obtaining of metal tube is easy, so the cost of end cap is low, and the length of metal tube can cut as required and be any length, and thermal diffusivity is good.In addition, LED fluorescent lamp of the present invention adopts the constant-current source circuit of two resistance and two triode formations that power supply is provided, and cost is low, and constant current is effective.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the cutaway view of existing a kind of LED fluorescent-lamp tube;
Fig. 2 is the structural representation of an embodiment of LED fluorescent lamp of the present invention outside;
Fig. 3 is the section of structure of an embodiment of LED fluorescent-lamp tube of the present invention;
Fig. 4 is the section of structure of an embodiment of pcb board of the present invention;
Fig. 5 is the section of structure of another embodiment of pcb board of the present invention;
Fig. 6 is the section of structure of another embodiment of LED fluorescent-lamp tube of the present invention;
Fig. 7 is an embodiment profile of fluorescent lamp end cap of the present invention;
Fig. 8 is another embodiment profile of fluorescent lamp end cap of the present invention;
Fig. 9 is another embodiment profile of fluorescent lamp end cap of the present invention;
Figure 10 is the profile of the metal tube among Fig. 9;
Figure 11 is another embodiment profile of metal tube of the present invention;
Another embodiment profile of Figure 12 fluorescent lamp end cap of the present invention;
Figure 13 is the electrical block diagram of an embodiment of constant-current source circuit of the present invention;
Figure 14 is the electrical block diagram of another embodiment of constant-current source circuit of the present invention.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described.
LED fluorescent lamp of the present invention, comprise fluorescent-lamp tube, be installed in the fluorescent lamp end cap at described fluorescent-lamp tube two ends, and be connected the constant-current source circuit that is used between the metal needle of LED lamp group in the described fluorescent-lamp tube and described end cap to described LED lamp group power supply.
The external structure of fluorescent lamp of the present invention as shown in Figure 2, fluorescent lamp end cap 22 is installed in the two ends of the fluorescent-lamp tube 23 on described two fluorescent lamp end caps respectively because constant-current source circuit is in end cap or fluorescent tube inside, therefore, this is not shown.
The cross-section structure of one embodiment of fluorescent-lamp tube 23 of the present invention as shown in Figure 3, it comprises a body, this body is made of the transparent lamp shade 43 of curved shape 40 and described shape 40 tops, in the specific implementation, transparent lamp shade 43 can be installed in shape 40 tops by the mode of draw-in groove buckle.Further, the part that described shape 40 is positioned at the body inboard is provided with draw-in groove 401, buckle has the flexible PCB plate 41 consistent with the crooked radian of described shape 40 on the described draw-in groove 401, is welded with led light source 42 (a plurality of led light sources constitute LED lamp group) on the described flexible PCB plate 41.In the specific implementation, after being anchored to described flexible PCB integrated circuit board on the described shape, because the crooked radian of flexible PCB plate is consistent with described shape, and because the screen resilience of pcb board self, make described pcb board to fit good with the cambered surface of shape, the heat of led light source can be given described shape by the pcb board heat conduction of described arc like this, is outwards dispelled the heat by shape.Simultaneously, curved pcb board has formed the secondary light-distribution face of led light source, has reached to be the effect of led light source secondary light-distribution.In addition, the pcb board structure of arc makes led light source farther with respect to prior art apart from the distance of transparent lamp shade, can increase effective mixed light of lampshade, and reduces dazzle.
Further, described shape can be aluminium.Described flexible PCB plate can be two-sided deposited copper pcb board, and as shown in Figure 4, the structure of two-sided deposited copper pcb board can comprise from top to bottom successively applies copper face 411 (welding led light source 42 on it), insulating barrier 412, deposited copper face 413.
In other embodiment of fluorescent-lamp tube of the present invention,, as shown in Figure 5, can on the flexible PCB plate, stick layer of metal thermal conductive belt 416 for better the heat of led light source being conducted.Metal heat-conducting band 416 can be affixed on the one side that pcb board does not weld led light source by the mode of bonding or soldering.As shown in Figure 5, the two-sided deposited copper flexible PCB plate that comprises the metal heat-conducting band comprises and applies copper face 411 (welding led light source 42 it on), insulating barrier 412, deposited copper face 413 and metal heat-conducting band 416.
In other embodiment of fluorescent-lamp tube of the present invention, the shape of the LED fluorescent tube fixedly arc of a side of pcb board can be provided with according to the different demands to the secondary light-distribution curvature of led light source, and the radian of shape and pcb board contact-making surface is less than its peripheral radian among the embodiment as shown in Figure 6.Therefore, the LED fluorescent tube of LED fluorescent lamp of the present invention can be arranged to have the arc of different curvature according to the different secondary light distribution requirements of led light source, can realize various secondary light-distribution effects.
One embodiment of fluorescent lamp end cap 22 of the present invention as shown in Figure 7, comprise metal stamping stretch cover 70, metal needle 71 and be used for that described metal needle 71 is fixed to described metal stamping stretching and cover insulation spacer 72 on 70.Wherein, described metal stamping stretches and covers 70 and made by mould.In the specific implementation, the two ends of described fluorescent-lamp tube 23 are placed in the described metal stretching lid 70, dispel the heat by 70 pairs of fluorescent tubes of described metal stretching lid.And described metal needle 71 is used for carrying to constant-current source circuit the external power source of alternating current, so that electric current can be conducting to LED lamp group.
Another embodiment of fluorescent lamp end cap 22 of the present invention comprises the vinyl cover 80 that forms by the injection moulding mode and metal needle 81 fixed thereon as shown in Figure 8.In the specific implementation, the two ends of described fluorescent-lamp tube 23 are placed in the described golden vinyl cover 80, dispel the heat by 80 pairs of fluorescent tubes of described vinyl cover.
Another embodiment of fluorescent lamp end cap 22 of the present invention comprises metal tube 90, plastic body 91 and metal needle 92 as shown in Figure 9.Wherein, described metal tube 90 both ends opens, described plastic body 91 are fixed on an end opening 901 places of metal tube 90, and described metal needle is installed on the described plastic body 91.In the specific implementation, described metal tube 90 is fixed on the outside of fluorescent-lamp tube, can help fluorescent tube to dispel the heat, and therefore, its length can cut according to radiating requirements and be random length.The described metal needle 92 outside external power sources that connect, the inner constant-current source circuit that connects is to the external power source of constant-current source circuit conveying alternating current, so that electric current can be conducting to LED lamp group.Further, the shape of described metal tube 90 can be tubular or square or cross section is shapes such as hexagon, octagon.Further, Figure 10 shows the cutaway view in cross section of an embodiment of metal tube of the present invention.And by shown in Figure 11, in other embodiments, the end opening 901 of metal tube 90 can narrow with respect to the body of metal tube 90.In the specific implementation, described opening 901 does not limit with respect to size, the angle that the body of metal tube 90 narrows, and can carry out buckle with plastic body 91 with it and be connected to suitable.As shown in figure 12, in the specific implementation, plastic body 91 and metal needle 92 are fixed on opening 901 places of described metal tube 90 by injection molding way.
The LED fluorescent lamp end cap that Fig. 9-Figure 12 of the present invention provided cooperates plastic body to constitute by the metal tube of both ends open, appearance looks elegant, and cost is low, and the length of metal tube can cut as required and be any length, and thermal diffusivity is good.
One embodiment of constant-current source circuit of the present invention as shown in figure 13, comprise be used for will input the alternating voltage constant-current source structural circuit T1 that becomes the rectification circuit U1 of DC voltage and be connected described rectification circuit U1 rear end, the input A1 of described rectification circuit and A2 are connected on the metal needle of end cap of LED fluorescent lamp, be used to connect the alternating current of external power source input, described constant-current source structural circuit T1 comprises first resistance R 2, second resistance R 1, the first triode Q2 and the second triode Q1, wherein, the input of described first resistance R 2 links to each other with the output of described rectification circuit U1 and an end of the LED lamp group in the LED fluorescent lamp, the output of described first resistance R 2 links to each other respectively with the base stage of the described first triode Q2 and the colelctor electrode of the described second triode Q1, the emitter stage of the described first triode Q1 links to each other respectively with the base stage of the described second triode Q1 and the input of described second resistance R 1, the other end of the described LED lamp group in the colelctor electrode of the described first triode Q2 and the LED fluorescent lamp links to each other, and the emitter stage of the output of described second resistance R 1 and the described second triode Q1 links to each other.In the specific implementation, described first triode Q2 and the described second triode Q1 are the homotype triode, this constant-current source circuit utilizes the metastable be voltage of triode as benchmark, by the scope that the value of regulating R1 can be regulated the constant current of this constant-current source circuit, power with the load LED lamp group of giving this constant-current source circuit.
As shown in figure 14, in other embodiment of LED fluorescent lamp of the present invention, constant-current source circuit also can comprise a filter capacitor C, and the one end links to each other with the input of described first resistance R 2, and the other end links to each other with the output of described second resistance R 1.
LED fluorescent lamp of the present invention adopts the constant-current source circuit of two resistance and two triode formations that power supply is provided, and cost is low, and constant current is effective.
Above disclosed is preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (6)
1. LED fluorescent lamp, comprise fluorescent-lamp tube, be installed in the fluorescent lamp end cap at described fluorescent-lamp tube two ends, and be connected the constant-current source circuit that is used between the metal needle of LED lamp group in the described fluorescent-lamp tube and described end cap to described LED lamp group power supply, it is characterized in that, described fluorescent-lamp tube comprises a body, described body is made of curved shape and the transparent lamp shade that is installed in shape top, the part that described shape is positioned at the body inboard is provided with draw-in groove, buckle has the flexible PCB plate consistent with the crooked radian of described shape on the described draw-in groove, is welded with LED lamp group on the described flexible PCB plate.
2. LED fluorescent lamp as claimed in claim 1 is characterized in that, the opposite face that welds led light source at described pcb board posts the layer of metal thermal conductive belt.
3. LED fluorescent lamp as claimed in claim 1 is characterized in that described fluorescent lamp end cap comprises the metal tube of a both ends open, and an opening part of described metal tube is fixed with a plastic body, and described plastic body is provided with the metal needle that is used to connect external power source.
4. LED fluorescent lamp as claimed in claim 3 is characterized in that the opening of described fixedly plastic body narrows with respect to the body of described metal tube.
5. as claim 3 or 4 described LED fluorescent lamps, it is characterized in that, described constant-current source circuit comprise be used for will input the alternating voltage constant-current source structural circuit that becomes the rectification circuit of DC voltage and be connected described rectification circuit rear end, described constant-current source structural circuit comprises first resistance, second resistance, first triode and second triode, wherein, one end of the LED lamp group in the input of described first resistance and the output of described rectification circuit and the described fluorescent lamp links to each other, the output of described first resistance links to each other respectively with the base stage of described first triode and the colelctor electrode of described second triode, the emitter stage of described first triode links to each other respectively with the base stage of described second triode and the input of described second resistance, the other end of the described LED lamp group in the colelctor electrode of described first triode and the described fluorescent lamp links to each other, and the emitter stage of the output of described second resistance and described second triode links to each other.
6. LED fluorescent lamp as claimed in claim 5 is characterized in that described constant-current source circuit also comprises a filter capacitor, and the one end links to each other with the input of described first resistance, and the other end links to each other with the output of described second resistance.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100426684A CN102121578A (en) | 2010-01-07 | 2010-01-07 | LED (light emitting diode) fluorescent lamp |
| PCT/CN2011/070035 WO2011082670A1 (en) | 2010-01-07 | 2011-01-05 | Led daylight lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100426684A CN102121578A (en) | 2010-01-07 | 2010-01-07 | LED (light emitting diode) fluorescent lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102121578A true CN102121578A (en) | 2011-07-13 |
Family
ID=44250203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100426684A Pending CN102121578A (en) | 2010-01-07 | 2010-01-07 | LED (light emitting diode) fluorescent lamp |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102121578A (en) |
| WO (1) | WO2011082670A1 (en) |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588767A (en) * | 2011-12-13 | 2012-07-18 | 常州新北区小河文君灯具饰件厂 | Fluorescent lamp |
| CN103016984A (en) * | 2012-12-12 | 2013-04-03 | 张静 | Light-emitting diode daylight lamp |
| CN103090229A (en) * | 2013-01-12 | 2013-05-08 | 江苏华程光电科技有限公司 | Light-emitting diode (LED) lamp |
| CN103249198A (en) * | 2012-02-03 | 2013-08-14 | 深圳市比格利电源科技有限公司 | LED daylight lamp provided with built-in drive power supply |
| CN104080238A (en) * | 2013-07-30 | 2014-10-01 | 广州市九佛电器有限公司 | Current-limiting LED light source module |
| CN104411070A (en) * | 2014-12-10 | 2015-03-11 | 上海康耐司信号设备有限公司 | Protection circuit |
| CN104595759A (en) * | 2014-12-30 | 2015-05-06 | 苏州汉克山姆照明科技有限公司 | Daylight lamp tube convenient to dismount |
| EP3001092A1 (en) * | 2014-09-28 | 2016-03-30 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | Led tube lamp |
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| US9794990B2 (en) | 2014-09-28 | 2017-10-17 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp with improved compatibility with an electrical ballast |
| US9851073B2 (en) | 2015-04-02 | 2017-12-26 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube light with diffusion layer |
| US9879852B2 (en) | 2014-09-28 | 2018-01-30 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US9885449B2 (en) | 2014-09-28 | 2018-02-06 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US9890909B2 (en) | 2014-09-28 | 2018-02-13 | Jiaxing Super Lighting Electric Appliance Co., Ltd. | LED tube lamp |
| US9903537B2 (en) | 2014-12-05 | 2018-02-27 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
| US9945520B2 (en) | 2014-09-28 | 2018-04-17 | Jiaxing Super Lighting Electric Appliance Co., Ltd | LED tube lamp |
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Application publication date: 20110713 |