CN105650500A - Light emitting diode lamp tube and emergent illumination lamp device - Google Patents
Light emitting diode lamp tube and emergent illumination lamp device Download PDFInfo
- Publication number
- CN105650500A CN105650500A CN201510422742.8A CN201510422742A CN105650500A CN 105650500 A CN105650500 A CN 105650500A CN 201510422742 A CN201510422742 A CN 201510422742A CN 105650500 A CN105650500 A CN 105650500A
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- emitting diode
- pin
- light
- lamp
- circuit
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Classifications
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- 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
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/026—Fastening of transformers or ballasts
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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
-
- 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
-
- 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
- F21K9/278—Arrangement or mounting of circuit elements integrated in the light source
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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
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
-
- 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
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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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
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
-
- 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
- H05B45/357—Driver circuits specially adapted for retrofit LED light sources
- H05B45/3578—Emulating the electrical or functional characteristics of discharge lamps
-
- 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
- H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
-
- 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
- H05B45/3725—Switched mode power supply [SMPS]
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- 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
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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]
-
- 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
- H05B45/305—Frequency-control circuits
-
- 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
- H05B45/32—Pulse-control circuits
- H05B45/325—Pulse-width modulation [PWM]
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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]
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- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention provides a light emitting diode lamp tube. The diode lamp tube comprises a lamp tube, two lamp caps, a circuit board and a light emitting diode module; the two lamp caps respectively sleeve two ends of the lamp tube; the circuit board is bonded on the inner peripheral surface of the lamp tube; the light emitting diode module includes a light emitting diode unit and a lightening circuit module; the light emitting diode unit is arranged on the circuit board; the lightening circuit module is arranged in the two lamp caps, and is electrically connected with electric conducting needles of the two lamp caps; the electric conducting needles are used for electrically connecting with an external power supply; the lightening circuit module includes a rectifying unit electrically connected with the electric conducting needle of one of the two lamp caps, a compatible circuit electrically connected with the electric conducting needle of the other one of the two lamp caps, and an auxiliary power supply module electrically connected to the light emitting diode unit; and when the external power supply stops supplying electric power, the auxiliary power supply module supplies the electric power to the light emitting diode unit.
Description
This application claims that JIUYUE in 2014 submits to Patent Office of the People's Republic of China, application number to be 201410507660.9 on the 28th, denomination of invention be the priority of Chinese patent application of " one LED daylight lamp ", its full content is hereby incorporated by the application.
This application claims that JIUYUE in 2014 submits to Patent Office of the People's Republic of China, application number to be 201410508899.8 on the 28th, denomination of invention be the priority of Chinese patent application of " one welding powder curing ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on October 17th, 2014 be 201420602526.2, denomination of invention be " one Novel LED fluorescent lamp power supply ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on November 6th, 2014 be 201410623355.6, denomination of invention be " one LED daylight lamp ", its full content is hereby incorporated by the application.
This application claims that December in 2014 submits to Patent Office of the People's Republic of China, application number to be 201410734425.5 on the 5th, denomination of invention is the priority of Chinese patent application of " LED daylight lamp ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on February 12nd, 2015 be 201510075925.7, denomination of invention is " LED daylight lamp ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on March 10th, 2015 be 201510104823.3, denomination of invention is " light-emitting diode lamp tube and ballast circuit for detecting ", its full content is hereby incorporated by the application.
This application claims the priority submitting Patent Office of the People's Republic of China, the application number Chinese patent application that to be 201510133689.X, denomination of invention be " one light-emitting diode lamp tube " on March 25th, 2015, its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on March 27th, 2015 be 201510136796.8, denomination of invention is " manufacture method of LED daylight lamp ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on April 3rd, 2015 be 201510155807.7, denomination of invention be " one light-emitting diode lamp tube ", its full content is hereby incorporated by the application.
The priority of Chinese patent application that to this application claims and submit Patent Office of the People's Republic of China, application number on June 29th, 2015 be 201510378322.4, denomination of invention be " one LED daylight lamp ", its full content is hereby incorporated by the application.
Technical field
The present invention relates to a kind of electronic technology field, particularly relate to a kind of light-emitting diode lamp tube.
Background technology
In existing illuminator, major part still utilizes fluorescent tube as luminescence unit. And light emitting diode (Light-EmittingDiode, LED) has the advantages such as high brightness, power saving and environmental protection, along with the evolution in epoch, also little by little it is applied in various illuminator.
At present light emitting diode (i.e. LED) on the market replaces existing illuminator and namely replaces the mode of fluorescent tube and mainly have two kinds. One is that ballast compatible type light-emitting diode lamp tube (T-LEDlamp) is (in this specification, compatibility means and can apply to this applicable cases), high-frequency ac signal produced by ballast (being generally tens of kHz) can be received and luminous, therefore not changing on the basis of circuit of original illuminator, light-emitting diode lamp tube directly can replace traditional fluorescent tube. Another is ballast bypass type (Ballastby-pass) light-emitting diode lamp tube, can receive low-frequency ac signal produced by civil power (be generally 50 or 60Hz) and luminous but high-frequency ac signal produced by ballast cannot be received and luminous, therefore circuit must remove traditional ballast, and directly civil power is received light-emitting diode lamp tube.
Light-emitting diode lamp tube currently on the market is not ballast compatible type, it is simply that ballast bypass type. Not only production need to be distinguished by manufacturer, adds the trouble of production and stock control, for terminal user, and identification of also must having the ability during purchase, too increase the puzzlement and fascination that use and install. Furthermore, light emitting diode corresponding different driving cannot switch power supply to suitable drive pattern, and user cannot confirm to drive power pack or light emitting diode part to have exception. Illumination for emergency light equipment, when emergency light should proceed to standby mode of operation, emergency power supply power supply when providing, but, emergency power supply is generally DC source, present light-emitting diode lamp tube cannot further compatible direct current power supply power supply and cannot normal operation.
Summary of the invention
What this invention address that is the power supply how making light-emitting diode lamp tube compatible with alternating and DC source, the DC source signal making driving power supply be high-frequency ac signal or DC source produced by ballast, and obtaining light-emitting diode lamp tube all can normal luminous.
For solving described problem, embodiments providing the fluorescent tube of a kind of light emitting diode, described fluorescent tube includes:
Fluorescent tube, for the peripheral framework of elongate;
Two lamp holders, it is socketed on the two ends of described fluorescent tube respectively, said two lamp holder is respectively provided with the conductive pin connecting external power source, to be correspondingly formed the first pin, the second pin and the 3rd pin, the 4th pin, wherein said external power source provides AC signal to flow through between at least one of at least one and described 3rd pin and described 4th pin of described first pin and described second pin;
Circuit board, is pasted on the inner peripheral surface of described fluorescent tube and has at least one weld pad and at least one of which conductive layer of being electrically connected to each other; And
Light-emitting diode (LED) module, including light emitting diode and lamp circuit module, described light emitting diode is located on described circuit board, described lamp circuit module is located in said two lamp holder and is electrically connected described conductive pin, wherein said light emitting diode includes multiple series, parallel or series-parallel light emitting diode, it is electrically connected by the described at least one of which conductive layer of described circuit board, described lamp circuit module, including having at least one weld pad, and with described at least one pad solder of described circuit board;
Described lamp circuit module includes:
Rectification unit, is electrically connected described first pin and described second pin, is suitable to described AC signal is rectified into DC signal, in order to provide direct current power extremely described light emitting diode;
Compatible circuit, it is electrically connected described 3rd pin and described 4th pin, comprise the first unidirectional current path and the second unidirectional current path, described first unidirectional current path is electrically connected described light-emitting diode (LED) module, described second unidirectional current path is electrically connected described light-emitting diode (LED) module, wherein said first unidirectional current path allow electric current by described light-emitting diode (LED) module flow to described 3rd pin and described four pins one of them, described second unidirectional current path allows electric current, and by described 3rd pin and described four pins, one of them flows to described light-emitting diode (LED) module, and
Auxiliary power module, is electrically connected to described light emitting diode, and when described AC signal stops providing, described auxiliary power module provides electric current to flow through described light emitting diode.
Alternatively, described lamp holder is provided with air-vent.
Alternatively, described fluorescent tube includes main body and the end at described main body two ends, and the external diameter of at least one end is less than the external diameter of described main body.
Alternatively, the difference�ܡ� 1mm of said two lamp holder external diameter and described body outer diameter.
Alternatively, one of them length dimension of said two lamp holder is the 30%��80% of another length dimension.
Alternatively, described light emitting diode includes the LED grain that proportion is 2:1��10:1 of length and width.
The embodiment of the present invention additionally provides a kind of emergency light device, including:
Fluorescent tube, for the peripheral framework of elongate;
Two lamp holders, it is socketed on the two ends of described fluorescent tube respectively, said two lamp holder is respectively provided with the conductive pin connecting external power source, to be correspondingly formed the first pin, the second pin and the 3rd pin, the 4th pin, wherein said external power source provides AC signal to flow through between described first pin and described second pin;
Circuit board, is pasted on the inner peripheral surface of described fluorescent tube and has at least one weld pad and at least one of which conductive layer of being electrically connected to each other;
Light emitting diode, is located on described circuit board and includes multiple series, parallel or series-parallel light emitting diode, is electrically connected by the described at least one of which conductive layer of described circuit board; And
Lamp circuit module, it is located in said two lamp holder and is electrically connected described conductive pin, there is at least one weld pad, and with described at least one pad solder of described circuit board, described lamp circuit module includes rectification unit and auxiliary power module, described rectification unit is electrically connected described first pin and described second pin, be suitable to described AC signal is rectified into DC signal, in order to provide direct current power extremely described light emitting diode, described auxiliary power module is electrically connected described 3rd pin and described 4th pin, when described AC signal stops providing, described auxiliary power module provides electric current to flow through described light emitting diode by described 3rd pin and described 4th pin.
Alternatively, described lamp holder is provided with air-vent.
Alternatively, described fluorescent tube includes main body and the end at described main body two ends, and the external diameter of at least one end is less than the external diameter of described main body.
Alternatively, described light emitting diode includes the LED grain that proportion is 2:1��10:1 of length and width.
Compared with prior art, technical scheme has the advantage that
Adopting above-mentioned light emitting diode, described light-emitting diode lamp tube to include light emitting diode and lamp circuit module, described lamp circuit module includes: rectification unit, is suitable to described AC signal is rectified into DC signal; Compatible circuit, is electrically connected described 3rd pin and described 4th pin; Auxiliary power module, it is electrically connected to described light emitting diode, when described AC signal stops providing, described auxiliary power module provides electric current to flow through described light emitting diode, described auxiliary power module can make light emitting diode can automatically identify the situation of civil power, when civil power stops providing, it is automatically adjusted and is powered by described auxiliary power module and make light-emitting diode lamp tube continuous illumination.
Accompanying drawing explanation
Fig. 1 is for can be used for embodiment of the present invention LED axonometric chart;
Fig. 2 is for can be used for embodiment of the present invention LED three-dimensional exploded view;
Fig. 3 can be used for the end construction of fluorescent tube in embodiment of the present invention LED;
Fig. 4 is the structure one that can be used for lamp holder in embodiment of the present invention LED: the structure outside lamp holder;
Fig. 5 is the structure two that can be used for lamp holder in embodiment of the present invention LED: the structure within lamp holder;
Fig. 6 can be used for the structure of power supply in embodiment of the present invention LED;
Fig. 7 can be used for the structure of the link position of lamp holder and fluorescent tube in embodiment of the present invention LED;
Fig. 8 is for can be used for the schematic diagram that all-plastic lamp holder in another embodiment of the present invention (inside having magnetic conductive metal part and PUR) and fluorescent tube are heating and curing through induction coil;
Fig. 9 is the three-dimensional cutaway view of the all-plastic lamp holder (inside having magnetic conductive metal part and PUR) of Fig. 8;
Figure 10 is the three-dimensional structure diagram that can be used for having a support portion and a protuberance on the inner peripheral surface of embodiment of the present invention insulation tube;
Figure 11 has a support portion and a protuberance on the inner peripheral surface of the insulation tube of Figure 10, along the cross sectional side view of hatching line X-X;
Figure 12 can be used for embodiment of the present invention magnetic conductive metal part to have the schematic diagram of at least one emptying aperture structure;
Figure 13 can be used for embodiment of the present invention magnetic conductive metal part to have the schematic diagram of at least one scoring structure structure;
After Figure 14 is the insulation tube of Figure 10 and fluorescent tube combines, along the sectional view of fluorescent tube axial direction;
Figure 15 is a non-circular loops composition for can be used for embodiment of the present invention magnetic conductive metal part, along the sectional view of fluorescent tube axial direction;
Figure 16 is that to can be used for flexible circuit board in embodiment of the present invention LED be the structure that lamp plate gets over that strengthening section place and power output end are welded to connect;
Figure 17 can be used for the Rotating fields of double-deck flexible circuit board in embodiment of the present invention LED;
Figure 18 can be used for fluorescent tube sectional view in axial direction in embodiment of the present invention LED;
Figure 19 can be used for embodiment of the present invention LED lamp reflectance coating and lamp plate one side contacts sectional view in axial direction;
Figure 20 be Figure 18 a variation in fluorescent tube sectional view in axial direction;
Figure 21 can be used for another variation of embodiment of the present invention LED tool reflectance coating and lamp plate one side contacts sectional view in axial direction;
Figure 22 be Figure 18 another variation in fluorescent tube sectional view in axial direction;
Figure 23 is the three-dimensional structure diagram of the light source medium-height trestle that can be used for embodiment of the present invention lighting source;
Figure 24 is the LED driving circuit structural representation of the embodiment of the present invention;
Figure 25 is the LED driving circuit structural representation of another embodiment of the present invention;
Figure 26 is the LED driving circuit structural representation of further embodiment of this invention;
Figure 27 is the structural representation of a kind of light-emitting diode lamp tube in the embodiment of the present invention;
Figure 28 is the electrical block diagram of 4 kinds of compatible circuits in embodiments of the invention;
Figure 29 is the circuit diagram of the ballast circuit for detecting of the first preferred embodiment in embodiments of the invention;
Figure 30 is the electrical block diagram of a kind of ballast circuit for detecting in the embodiment of the present invention;
Figure 31 is the circuit diagram of ballast circuit for detecting in the embodiment of the present invention;
Figure 32 is the circuit diagram of ballast circuit for detecting in the embodiment of the present invention;
Figure 33 is the circuit diagram of light-emitting diode lamp tube in the embodiment of the present invention;
Figure 34 is the circuit diagram of the bypass circuit of another preferred embodiment according to the present invention;
Figure 35 is the flexible circuit of a kind of ballast circuit for detecting in the embodiment of the present invention;
Figure 36 is that in the embodiment of the present invention, multiple ballast circuit for detecting applies the electrical block diagram to compatible circuit;
Figure 37 is the circuit diagram of a kind of light-emitting diode lamp tube in one embodiment of the invention;
Figure 38 is the circuit diagram of the light-emitting diode lamp tube in one embodiment of the invention;
Figure 39 is the structural representation of the emergency light device in one embodiment of the invention;
Figure 40 A-C is the schematic diagram of the LED component connection of one embodiment of the invention;
Figure 41 A-C is the trace-diagram of corresponding diagram 40A-C circuit diagram in the embodiment of the present invention.
Detailed description of the invention
The present inventor is through creative work, on the basis of glass lamp, it is proposed that (in this programme, LED also can be expressed as lighting source, LED daylight lamp to a kind of LED, light-emitting diode lamp tube or illuminator), LED component also can be expressed as light source; To solve problem and the problems referred to above of mentioning in background technology.
LED is such as known hot cathode tube or cold-cathode tube, have that one is transparent or the peripheral framework (i.e. fluorescent tube) of the elongate of astigmatism effect, such as: cylinder, size (length, radius) can design according to the specification (such as: JISC7601, JISC7709) of known hot cathode tube or cold-cathode tube.
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, specific embodiments of the invention are described in detail.
The embodiment of the present invention provides a kind of lighting source, with reference to Fig. 1-2, including: fluorescent tube 1, the lamp plate 2 being located in fluorescent tube 1, and it is socketed on two lamp holders 3 at fluorescent tube 1 two ends respectively. Wherein fluorescent tube 1 can be the peripheral framework of elongate, adopt plastics fluorescent tube or glass lamp, the present embodiment adopts the glass lamp of tool strengthening section, to avoid traditional glass fluorescent tube easily rupturable and the electric shock accidents caused because of electric leakage that breaks, and the problem that plastics fluorescent tube is easily aging.
The mode of fluorescent tube strengthening can make chemically or glass is done secondary operations strengthening by physics mode. The ultimate principle of chemical mode is to improve the intensity of glass with the composition changing glass surface, and its method is first to exchange with other alkali metal ion Na ion with surface layer of glass or K ion, makes surface formation ion exchange layer. After being cooled to room temperature, glass is in internal layer tension, the state of outer layer pressurized, thus reaching to increase the purpose of intensity. Chemical mode includes but not limited to high temperature modification ion exchange, low form ion exchange, dealkalize method, surface crystallization method, sodium silicate reinforcement etc.
1, high temperature modification ion exchange
In the temperature province between the softening point and transition point of glass, glass containing Na2O or K2O is invaded in the fused salt of lithium, the Na ion in glass or the Li ion in the fused salt little with they radiuses is made to be exchanged, it is subsequently cooled to room temperature, owing to the top layer containing Li ion is different from containing Na ion or K ion inner layer expansion coefficient, surface produces residual pressure and strengthens, simultaneously; When glass neutralizes containing compositions such as Al2O3, TiO2, being exchanged by ion, can produce the crystallization that the coefficient of expansion is extremely low, the glass surface after cooling, by producing very big pressure, can obtain the glass of intensity up to 700MPa.
2, low form ion exchange
Low-temperature ion exchange process is in the humidity province lower than strain point of glass, do ion exchange with the monovalent cation (such as K ion) than top layer basic ion (such as Na ion) also larger ionic radius with Na ion, make the method that K ion enters top layer. Such as Na2O+CaO+SiO2 system glass, can impregnate tens hours in the fuse salt of degree more than 400. Low form ion exchange can be readily attained high intensity, has processing method and simply, does not damage the features such as transparent, the constant row of glass surface.
3, dealkalize method
Dealkalize method is in the high-temperature atmosphere containing sulphurous acid gas and moisture, utilize Pt catalyst treatment glass, make Na+ ion ooze out from surface layer of glass and react with sulfurous acid, thus surface layer becomes rich SiO2 layer, its result becomes low expansion glass due to top layer, produces compressive stress during cooling
4, surface crystallization method
The exchange of surface crystallization method and high temperature modification ion is different, but only forms low-expansion microcrystal on top layer by heat treatment, thus so as to the method strengthened.
5, sodium silicate reinforcement
Sodium silicate reinforcement is will to process under 100 degrees Celsius of several of the above atmospheric pressure in the aqueous solution of sodium silicate (waterglass), thus obtaining the high strength glass being difficult to scratch top layer.
Glass is done by physics mode to be strengthened, it is possible to include but not limited to, uses the mode of coating or changes the structure of article. The substrate that coating sprays as required determines kind and the state of coating, it is possible to be ceramic tile strengthened coat, acrylic coating or glass coating etc., can be liquid or gaseous state coating when coating. Change the structure of article, for instance do structural strengthening design in easily rupturable part. Below whether chemical mode or physics mode are not limited to single mode and implement, it is possible to any one in mixing physics mode or in chemical mode does any matched combined.
The present embodiment explains with structure-reinforced design, and fluorescent tube 1 includes main body 102 and lays respectively at the end 101 at main body 102 two ends, and lamp holder 3 is sheathed on outside end 101. Wherein, the external diameter of at least one end 101 is less than the external diameter of main body 102. In the present embodiment, the external diameter arranging two ends 101 is respectively less than the external diameter of main body 102. Specifically, the two ends of fluorescent tube 1 are processed by strengthening section, and end 101 forms strengthening section structure, lamp holder 3 is enclosed within the end 101 after strengthening, so can so that the difference of lamp holder 3 external diameter and lamp tube main body 102 external diameter diminish, even completely equal, namely lamp holder 3 external diameter is equal with main body 102 external diameter. So arrange and be advantageous in that, in transportation, packaging support will not only contact lamp holder 3, it can contact lamp holder 3 and fluorescent tube 1 simultaneously, make whole lighting source uniform force, without making lamp holder 3 become unique stress point, it is to avoid the position that lamp holder 3 is connected with lamp tube end 101 is concentrated due to stress and broken, improve the quality of product, and have effect attractive in appearance concurrently.
In the present embodiment, lamp holder 3 external diameter is of substantially equal with main body 102 external diameter, and tolerance is in positive and negative 0.2mm (millimeter), no more than positive and negative 1mm.
The purpose of substantially equal in order to reach lamp holder 3 external diameter and main body 102 external diameter, the thickness according to different lamp holders 3, end 101 and the difference range of main body 102 external diameter after strengthening can be 1mm��10mm; Or it is furthermore preferred that the difference range of end 101 after strengthening and main body 102 external diameter can be relaxed to 2mm��7mm.
In the present embodiment, with reference to Fig. 3, seamlessly transitting between end 101 and the main body 102 of fluorescent tube 1, form a transition part 103, transition part 103 is in cambered surface, and namely transition part 103 section vertically is arc shaped.
The length of transition part 103 is 1mm��4mm, if less than 1mm, then and the insufficient strength of transition part; If greater than 4mm, then can reduce the length of main body 102, reduce light-emitting area, simultaneously need to the length of lamp holder 3 increases to coordinate with main body 102 accordingly, cause the material of lamp holder 3 to increase. In other embodiments, then transition part 103 can not also be arc.
For the standard fluorescent tube of T8, the external diametrical extent of the end 101 after strengthening is 20.9mm��23mm, and if less than 20.9mm, then the internal diameter of end 101 is too small, causes that lamp circuit module cannot be inserted in fluorescent tube 1. The external diametrical extent of main body 102 is 25mm��28mm, if less than 25mm, then with existing process conditions, it has not been convenient to its two ends are made strengthening section and processes, if greater than 28mm, will not meet industry standard.
With continued reference to Fig. 2, lamp plate 2 is provided with light emitting diode, light emitting diode includes some LED component 202 (in this programme, LED component also can be expressed as light emitting diode or light-emitting diode group), lamp circuit module 5 it is provided with, by lamp plate 2 electrical communication between LED component 202 and lamp circuit module 5 in lamp holder 3. In other illustrate, light emitting diode (LED component 202) and lamp circuit module 5 can also be referred to as light-emitting diode (LED) module.
Wherein, lamp circuit module 5 can be single body (namely all driving power supply modules are all integrated in parts), and is located in the lamp holder 3 of fluorescent tube 1 one end; Or lamp circuit module 5 can also be divided into two parts, it is called double; two individual (namely all power supply modules are separately positioned in two parts), and two parts is respectively arranged in the lamp holder 3 of lamp tube ends. If strengthening section process is done in fluorescent tube 1 only one end, power supply prioritizing selection is single body, and is located in the lamp holder 3 corresponding to the end after strengthening 101.
No matter it is single body or double; two individuality, the generation type of lamp circuit module can have Mutiple Choice, such as, can be the module after a kind of embedding molding, specifically, use the silica gel (heat conductivity >=0.7w/m k) of a kind of high heat conduction, by mould to driving power supply module to carry out embedding molding, obtain, the advantage that the lamp circuit module that this mode obtains has high insulation, height dispels the heat, profile is more regular, and can coordinate with other structural members easily. Or, it is also possible to for not doing casting glue molding, directly exposed lamp circuit modular assembly is embedded in inside lamp holder, or after the exposed lamp circuit module conventional thermal draw is encased, then embed the inside of lamp holder 3.
In general, with reference to Fig. 2 and in conjunction with Fig. 4-6, one end of lamp circuit module 5 has male plug 501, and the other end has metal ferrule 502, and the end of lamp plate 2 is provided with female plug 201, and it is hollow conductive pin 301 that lamp holder 3 is provided with the conductive pin for connecting external power source. The male plug 501 of lamp circuit module 5 is inserted in the female plug 201 of lamp plate 2, and metal ferrule 502 is inserted in the hollow conductive pin 301 of lamp holder 3. In other embodiments, the conductive pin of lamp holder 3 may be used without solid conductive pin, and lamp circuit module 5 is by welding, and the mode that brought into physical contact etc. can reach to be electrically connected is electrically connected with conductive pin. Now male plug 501 and female plug 201 are equivalent to adaptor, for lamp circuit module 5 and lamp plate 2 being electrically connected. When metal ferrule 502 inserts after in hollow conductive pin 301, impact hollow conductive pin 301 through outside stamping tool so that slight deformation occurs hollow conductive pin 301, thus the metal ferrule 502 fixed in lamp circuit module 5, and realize electrical connection. Lamp holder 3 is provided with the air-vent of WIFI shape, and described air-vent may also be other shape, such as Pinhole-shaped; smiling face's shape etc.; as long as can realize ventilative, at this, the shape of air-vent is not done any restriction, and the air-vent of any shape is all within the scope of protection of the invention.
During energising, electric current passes sequentially through the LED driving circuit in the hollow conductive pin 301 of LED one end, metal ferrule 502, lamp circuit module 5, male plug 501 and female plug 201 and arrives lamp plate 2, and arrives LED component 202 by lamp plate 2.
In the present embodiment, the connected mode of male plug 501, female plug 201 can not also be adopted, and can replace by conventional wires routing mode, namely a traditional plain conductor is adopted, one end of plain conductor is electrically connected with power supply, the other end electrically connects with lamp plate 2, but the mode that wire routing connects is likely at the potential risk having fracture in transportation, slightly worse in quality.
In the present embodiment, the length dimension of right side lamp holder 3 is short compared with left side lamp holder 3 length. Generally, the length dimension of lamp holder 3 side is the 30%��80% of the length dimension of lamp holder 3 opposite side. It is more preferred from 1/3��2/3. The size of the longer side of lamp holder 3 is between 15mm��65mm (specifically depending on the application). Such length burner design is preferably application to having the light-emitting diode lamp tube that DC-to-DC switching circuit is LED drive circuit.
As shown in figure 24, the embodiment of the present invention provides the LED driving circuit in a kind of lamp circuit module 5, be suitable to receive ac input signal, including the first rectification unit 110, compatible circuit 140, in order to provide direct current power to light emitting diode 130. Described light emitting diode 130 includes light-emitting diode group 202, and described compatible circuit 140 includes current adjustment unit the 144, second rectification unit 142, makes light-emitting diode lamp tube can apply to two kinds or above drive environment.
Described current adjustment unit 144 connects the 3rd pin B1, the 4th pin B2 and described second rectification unit 142.
One end of described second rectification unit 142 connects one end of described light emitting diode 130 and described first rectification unit 110, and another end of the second rectification unit 142 connects the other end of described light emitting diode 130 and described first rectification unit 110. Described first rectification unit 110 also connects the first pin A1 and the second pin A2.
The working current value scope that described current adjustment unit 144 is suitable to according to described ac input signal provides current modifying signal, the current value of described current modifying signal and described light-emitting diode group 202 predetermined matches. Current value herein matches and refers to: after current modifying signal flows through the circuit between current adjustment unit 144 and light-emitting diode group 202, its output to the current value of light-emitting diode group 202 less than the rated current of light-emitting diode group 202, optionally, drop in the scope of the predetermined working current value scope of light-emitting diode group 202. Described ac input signal can be produced by ballast or civil power.
Described second rectification unit 142 and described first rectification unit 110 are suitable to received signal is carried out rectification process.
The light-emitting diode lamp tube of the present invention can the driving situation of compatible single ended power supply input, namely ac input signal inputs from the first pin A1 and the second pin A2, such as: mains supply is electrically connected the first single-ended pin A1 and the second pin A2 of light-emitting diode lamp tube, and now the 3rd pin B1 and the four pin B2 can be suspension joint (floating). When single ended power supply input drives, the first pin A1 or the second pin A2 AC signal inputted is carried out rectification and is then input to described light emitting diode 130 by the first rectification unit 110.
Due to compatible circuit 140, the light-emitting diode lamp tube of the present invention can also the driving situation of compatible Double-End Source input, namely as traditional fluorescent tube be connected directly between the first pin A1, the second pin A2, between the 3rd pin B1 and the 4th pin B2 as, ac input signal is from one of them input of the first pin A1 and the second pin A2 one of them and the 3rd pin B1 and the four pin B2, for instance: ballast is electrically connected the both-end of light-emitting diode lamp tube. When Double-End Source input drives, the AC signal of input is carried out rectification and is then input to described light emitting diode 130 by the first rectification unit 110 and described second rectification unit 142. Furthermore, the current adjustment unit 144 of the present embodiment can adjust the current value of the ac input signal of input, the working current value scope making current value and the light-emitting diode group 202 of the signal after adjusting predetermined matches, and this makes the LED driving circuit of the present embodiment can also be connected directly between the first pin A1, the second pin A2, the 3rd pin B1 and the four pin B2 are operated. So both without using special light emitting diode, without the dismantlement work carrying out ballast.
When the present embodiment is directly connected to civil power, the lamp holder 3 (side that lamp holder length dimension is longer) of electric coupling one end, city, make the first pin A1 and the second pin A2 couple alternating current power supply, and the 3rd pin B1 and the 4th pin B2 on opposite side lamp holder (side that lamp holder length dimension is shorter) is suspension joint (floating). When the AC signal that above-mentioned alternating current power supply provides is in positive half-wave, electric current is flowed into by this first pin A1, is flowed out by this second pin A2 after the diode D4 of this diode D1 of this rectification unit 110, filter circuit 120, light emitting diode 130 and rectification unit 110. When the AC signal that above-mentioned alternating current power supply provides is in negative half-wave, electric current is flowed into by this second pin A2, is flowed out by the first pin A1 after the diode D2 of the diode D3 of rectified unit 110, filter circuit 120, light emitting diode 130 and rectification unit 110.
Below each ingredient of LED driving circuit shown in Figure 24 is elaborated.
Described current adjustment unit 144 may include that the first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5.
Described second the first end adjusting electric capacity C4 connects described 3rd pin B1, and the second the second end adjusting electric capacity C4 connects the described 3rd the second end adjusting electric capacity C5 and first and adjusts first end of electric capacity C3. Described 3rd the first end adjusting electric capacity C5 connects described 4th pin B2. Described first the second end adjusting electric capacity C3 connects described current adjustment unit 144.
Described first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5 and all can adopt thin-film capacitor.
Described second rectification unit 142 includes: the 5th diode D5 and the six diode D6.
The negative electrode of described 5th diode D5 connects the anode of described light emitting diode 130, and the anode of described 5th diode D5 connects the negative electrode of described current adjustment unit 144 and the 6th diode D6. The anode of described 6th diode D6 connects the negative electrode of described light emitting diode 130. 3rd pin B1 or the 4th pin B2 ac input signal received can be processed as direct current signal by the second rectification unit 142.
Described light-emitting diode group 202 in described light emitting diode 130 can include a light emitting diode, it would however also be possible to employ multiple series, parallel or series-parallel light emitting diode. The anode of light-emitting diode group 202 is electrically connected to the anode of described light emitting diode 130, and the negative electrode of light-emitting diode group 202 is electrically connected to the negative electrode of described light emitting diode 130.
According to a light emitting diode, then the anode of light emitting diode as the anode link of light-emitting diode group 202 and is electrically connected to the anode of described light emitting diode 130, and the negative electrode of light emitting diode is as the cathode connection terminal of light-emitting diode group 202 and is electrically connected to the negative electrode of described light emitting diode 130. According to the light emitting diode of multiple series connection, then the anode of first light emitting diode is as the anode link of light-emitting diode group 202, and the negative electrode of last light emitting diode is as the cathode connection terminal of light-emitting diode group 202.
According to the light emitting diode of multiple parallel connections, then the anode of the light emitting diode linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode linked together is as the cathode connection terminal of light-emitting diode group 202. According to multiple series-parallel light emitting diodes (multiple light emitting diode strings namely in parallel), the anode of the light emitting diode string then linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode string linked together is as the cathode connection terminal of light-emitting diode group 202. For clearer explanation principles of the invention, following example include a light emitting diode for light-emitting diode group 202 and illustrate, can adopt in actually used multiple series connection or, in parallel or series-parallel light emitting diode is as light-emitting diode group.
Described first rectification unit 110 includes: the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4. First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 form bridge rectifier, process the first pin A1 or the second pin A2 ac input signal received for direct current signal.
Concrete, the negative electrode of described first diode D1 connects the negative electrode of described 3rd diode D3 and the anode of described light emitting diode 130. The anode of described second diode D2 connects the anode of described 4th diode D4 and the negative electrode of described light emitting diode 130. The anode of described first diode D1 connects the negative electrode of the second diode D2 and described first pin A1. The anode of described 3rd diode D3 connects the negative electrode of the 4th diode D4 and described second pin A2. Certainly, the first rectification unit 110 can also adopt full-wave rectifying circuit or the half-wave rectifying circuit of other structures.
Can be seen that from the above, current adjustment unit the 144, second rectification unit 142, light emitting diode 130 and the first rectification unit 110 are connected in series, first adjustment electric capacity C3, the second current adjustment unit 144 adjusting electric capacity C4 and the three adjustment electric capacity C5 composition can provide the effect of impedance current limliting, so can reduce the cross-pressure being applied in light-emitting diode group 202, the electric current in light-emitting diode group 202 can also be adjusted, and reach the effect that electric current regulates. Owing to the current modifying signal of current adjustment unit 144 output also needs to other circuit in light-emitting diode lamp tube, such as: the circuit between current adjustment unit 144 and light-emitting diode group 202, so the current value of current modifying signal can be varied from, therefore, composition current adjustment unit 144 first adjust electric capacity C3, second adjust electric capacity C4 and the three adjust electric capacity C5 capacitance except the size and frequency with ac input signal relevant, also relevant with other circuit structures in light-emitting diode lamp tube. Those skilled in the art can adjust electric capacity C3 according to practical situation to first, the second capacitance adjusting electric capacity C4 and the three adjustment electric capacity C5 is set.
As shown in figure 25, described LED driving circuit can also include: filter circuit 120, it is electrically connected described first rectification unit 110 and described light-emitting diode group 202 to receive and to filter described DC signal, is suitable to filter described DC signal extremely described light-emitting diode group 202 after described DC signal filters to provide.
It is in parallel with described light emitting diode 130 that described filter circuit 120 includes filter capacitor C1, and filter capacitor C1 can the HFS of filtered signal.
The value of filter capacitor C1 is 0nF��30nF. Preferably value < the 10nF of electric capacity C1. So under same power, the volume of electric capacity C1 reduces, and then, can further optimize the volume of lamp circuit module. Under equal conditions improve the safety of drive circuit, reliability. In other embodiments, can as shown in figure 24 as do not use described filter circuit 120.
LED driving circuit can also include: release can circuit 150, described in release can circuit 150 parallel filtering circuit 120 and/or light-emitting diode group 202, in order to discharge the electric charge on described filter capacitor C1.
Filter capacitor C1 still stores certain voltage after electric power disconnection so that the situation of flicker even occurs in light-emitting diode group 202 still continuous illumination a period of time, and releases energy circuit 150 and can avoid the generation of this problem.
Concrete, described in release and can may include that the first resistance R1 and the second resistance R2 of series connection by circuit 150.
In other embodiments, release can circuit 150 may also be releasing of other forms can circuit, as long as can realize: when the cross-pressure in described light-emitting diode group 202 is greater than or equal to its luminescence threshold magnitude of voltage, release can continue the scheduled current or above that circulates by circuit 150 by this. This scheduled current can determine according to the current ripples size of light-emitting diode group 202.
In prior art, there are some tube faces with preheating function, for instance there is the tube face of electric ballast. At warm, whether the filament that part electric ballast can detect fluorescent tube is abnormal, for instance: open circuit or short circuit. Therefore, as shown in figure 26, the LED driving circuit of the embodiment of the present invention can also include: the first filament artificial circuit and the second filament artificial circuit 180. First filament artificial circuit and the second filament artificial circuit 180 can reach the effect of emulation filament, and such electric ballast can normally spend the filament pre-heating stage when starting, and ensures that electric ballast normally starts.
First filament artificial circuit 180 connects described first pin A1 and the second pin A2, in order to provide current path between described first pin A1 and the second pin A2. Second filament artificial circuit 180 connects described 3rd pin B1 and the four pin B2, in order to provide current path between described 3rd pin B1 and the 4th pin B2.
With continued reference to Figure 26, described first filament artificial circuit and the second filament artificial circuit 180 can include the first artificial resistance R5, the second artificial resistance R6, the first emulation electric capacity C9 and the second emulation electric capacity C10.
The described first artificial resistance R5 of described first filament artificial circuit 18 and the second artificial resistance R6 is series between described first pin A1 and the second pin A2, described first emulation electric capacity C9 and the second emulation electric capacity C10 is also series between described first pin A1 and the second pin A2, and the junction point of described first artificial resistance R5 and the second artificial resistance R6 is electrically connected to each other with described first emulation electric capacity C9 and the second junction point emulating electric capacity C10.
Described second filament artificial circuit 180 is except being electrically connected described 3rd pin B1 and the four pin B2, and its structure is identical with the first filament artificial circuit 180 structure.
Optionally, described first artificial resistance R5, the second artificial resistance R6 can be 100K ��, and the first emulation electric capacity C9, the second emulation electric capacity C10 can be 220nF.
Figure 27 is the structural representation of a kind of light-emitting diode lamp tube of the embodiment of the present invention. Illustrating with reference to Figure 24-Figure 27, described light-emitting diode lamp tube includes: rectification unit 110, filter circuit 120, light emitting diode 130, compatible circuit 140 and ballast circuit for detecting 680. Described light emitting diode 130 includes light-emitting diode group 202.
Described compatible circuit 140 connects described 3rd pin B1, described 4th pin B2 and described light-emitting diode (LED) module 130. Described rectification unit 110 connects described first pin A1, described second pin A2 and described light-emitting diode (LED) module 130. Described rectification unit 110 and described compatible circuit 140 are suitable to the first pin A1, the second pin A2, the 3rd incoming for pin B1 and the four pin B2 signal are carried out rectification process, to provide the signal after rectification to described light-emitting diode (LED) module 130.
The anode link of described light-emitting diode group 202 connects the anode of described light emitting diode 130, and the cathode connection terminal of described light-emitting diode group 202 connects the negative electrode of described light-emitting diode (LED) module 130.
Described compatible circuit 140 includes current adjustment unit 144, rectification unit 142, be suitable to the working current value scope according to described ac input signal provides current modifying signal, the current value of described current modifying signal and described light-emitting diode group 202 predetermined match. Current value herein matches and refers to: after current modifying signal flows through other circuit of described light-emitting diode lamp tube, its output to the current value of light-emitting diode group 202 less than the rated current of light-emitting diode group 202, optionally, drop in the scope of the predetermined working current value scope of light-emitting diode group 202. Described ac input signal can be produced by ballast.
Traditional fluorescent tube be connected directly between the first pin A1, the second pin A2, between the 3rd pin B1 and the 4th pin B2. The compatible circuit 140 of the present embodiment can adjust the current value of the ac input signal inputted in the driving situation of Double-End Source input, the working current value scope making current value and the light-emitting diode group 202 of the signal after adjusting predetermined matches, and this makes the LED driving circuit of the present embodiment can also be connected directly between the first pin A1, the second pin A2, the 3rd pin B1 and the four pin B2 are operated. So both without using special light emitting diode, without the dismantlement work carrying out ballast.
Current adjustment unit 144 in described compatible circuit 140 may include that the first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5.
Described second the first end adjusting electric capacity C4 connects described 3rd pin B1, and the second the second end adjusting electric capacity C4 connects the described 3rd the second end adjusting electric capacity C5 and first and adjusts first end of electric capacity C3. Described 3rd the first end adjusting electric capacity C5 connects described 4th pin B2. Described first the second end adjusting electric capacity C3 connects described current adjustment unit 144.
Described first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5 and all can adopt thin-film capacitor.
Rectification unit 142 in described compatible circuit 140 includes: the 5th diode D5 and the six diode D6.
The negative electrode of described 5th diode D5 connects the anode of described light emitting diode 130, and the anode of described 5th diode D5 connects the negative electrode of described current adjustment unit 144 and the 6th diode D6. The anode of described 6th diode D6 connects the negative electrode of described light emitting diode 130. 3rd pin B1 or the 4th pin B2 ac input signal received can be processed as direct current signal by the second rectification unit 142.
Described light-emitting diode group 202 can include a light emitting diode, it would however also be possible to employ multiple series, parallel or series-parallel light emitting diode.
According to a light emitting diode, then the anode of light emitting diode is as the anode link of light-emitting diode group 202, and the negative electrode of light emitting diode is as the cathode connection terminal of light-emitting diode group 202. According to the light emitting diode of multiple series connection, then the anode of first light emitting diode is as the anode link of light-emitting diode group 202, and the negative electrode of last light emitting diode is as the cathode connection terminal of light-emitting diode group 202. According to the light emitting diode of multiple parallel connections, then the anode of the light emitting diode linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode linked together is as the cathode connection terminal of light-emitting diode group 202. According to multiple series-parallel light emitting diodes (multiple light emitting diode strings namely in parallel), the anode of the light emitting diode string then linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode string linked together is as the cathode connection terminal of light-emitting diode group 202. For clearer explanation principles of the invention, following example include a light emitting diode for light-emitting diode group 202 and illustrate, can adopt in actually used multiple series connection or, in parallel or series-parallel light emitting diode is as light-emitting diode group.
Described rectification unit 110 includes: the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4. First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 form bridge rectifier, process the ac input signal received for direct current signal.
Concrete, the negative electrode of described first diode D1 connects the negative electrode of described 3rd diode D3 and the anode of described light emitting diode 130. The anode of described second diode D2 connects the anode of described 4th diode D4 and the negative electrode of described light emitting diode 130. The anode of described first diode D1 connects the negative electrode of the second diode D2 and described first pin A1. The anode of described 3rd diode D3 connects the negative electrode of the 4th diode D4 and described second pin A2. Certainly, rectification unit 110 can also adopt full-wave rectifying circuit or the half-wave rectifying circuit of other structures.
Can be seen that from the above, compatible circuit 140, light-emitting diode (LED) module 130 and rectification unit 110 are connected in series, the first of compatible circuit 140 adjusts electric capacity C3, the second adjustment electric capacity C4 and the three adjusts the electric capacity C5 unit formed can provide the effect of impedance current limliting, so can reduce the cross-pressure being applied in light-emitting diode group 202, the electric current in light-emitting diode group 202 can also be adjusted, and reach the effect that electric current regulates.
The current modifying signal exported due to the unit of described compatible circuit 140 also needs to other circuit in light-emitting diode lamp tube, so the current value of current modifying signal can be varied from, therefore, described first adjust electric capacity C3, second adjust electric capacity C4 and the three adjust electric capacity C5 capacitance except the size and frequency with ac input signal relevant, also relevant with the circuit structure of other circuit in described light-emitting diode lamp tube. Those skilled in the art can adjust electric capacity C3 according to practical situation to first, the second capacitance adjusting electric capacity C4 and the three adjustment electric capacity C5 is set.
Described light-emitting diode lamp tube can also include: release can circuit 150, described in release can circuit 150 in order to discharge the electric charge on described filter circuit 120. Filter circuit 120 still stores certain energy after electric power disconnection so that the situation of flicker even occurs in light-emitting diode group 202 still continuous illumination a period of time, and releases energy circuit 150 and can avoid the generation of this problem.
Concrete, described in release and can may include that the first resistance R1 and the second resistance R2 by circuit 150, be series between described light emitting diode 130 and/or filter circuit 120.
Filter circuit 120 in described light-emitting diode lamp tube is omissible circuit, and after omitting filter circuit circuit 120, the ripple of DC signal is relatively big, but still light-emitting diode group 202 can be made luminous by driven for emitting lights diode lamp tube.
Described ballast circuit for detecting 680, at least includes: bypass resistance 160, circuit for detecting 170; This ballast circuit for detecting 680 can also additionally comprise electric capacity C8. Described ballast circuit for detecting 680 controls the conducting of the bypass path of described bypass resistance 160 with cut-off to decide whether to bypass described electric capacity C8. Described ballast circuit for detecting 680 be electrically connected this first pin A1 and this second pin A2 and the three pin B1 and the 4th pin B2 at least one. Bypass resistance 160 be electrically connected this first pin A1, this second pin A2, the 3rd pin B1 and the 4th pin B2 at least one, be the 3rd pin B1 at the present embodiment. Bypass resistance 160 provides a bypass path, and bypass path is preferably two-way admittance path, and its original state is cut-off.
The circuit for detecting 17 of described ballast circuit for detecting 680 detects a voltage of this AC signal or an electric current to judge whether to turn on this bypass resistance 160 to bypass this electric capacity C8. Whether the circuit for detecting of described ballast circuit for detecting 680 can also detect the voltage of electric capacity C8 higher than predetermined bypass voltage, produces a detection signal to turn on described bypass path when the voltage of electric capacity C8 is higher than predetermined bypass voltage.
Figure 28 A-C is the circuit diagram of 3 kinds of compatible circuits in embodiments of the invention, all can provide the first unidirectional current path I1 and the second unidirectional current path I2, when making light-emitting diode lamp tube both-end be energized, can flow in or out electric current via compatible circuit. Compatible circuit shown in Figure 28 A comprises a bridge rectifier. Figure 28 B, compared to the compatible circuit shown in Figure 24-25 and 27, eliminates electric capacity C3-5, adds fuse F1 and F2, by fusing when electric current is excessive, it is possible to light-emitting diode (LED) module is carried out overcurrent protection. Figure 28 C, compared to the compatible circuit shown in Figure 24-25 and 27, eliminates electric capacity C3 so that the simpler convenience of whole circuit structure.
Figure 29 is the circuit diagram of the ballast circuit for detecting 680 of first preferred embodiment of the present invention. Ballast circuit for detecting 680 is connected to an electric ballast, a mains ac power supply or a DC source. Electric ballast connects an alternating current power supply AC, to provide the AC signal of a high frequency or high pressure to this ballast circuit for detecting 680. Mains ac power supply provides the AC signal of a low frequency to this ballast circuit for detecting 680. DC source provides a DC signal to this ballast circuit for detecting 680. This ballast circuit for detecting 680 comprises bypass resistance 160 and a circuit for detecting 170. This ballast circuit for detecting 680 can also additionally comprise an electric capacity C8. In the present embodiment, this electric capacity C8 is electrically connected this first pin A1. This bypass resistance 160 is in parallel with this electric capacity C8. One electric current of the signal of this circuit for detecting 170 detecting input the first pin A1 and/or a voltage are to judge this bypass resistance 160 of on or off.
Figure 30 is the circuit diagram of the bypass resistance 160 of the ballast circuit for detecting 680 of second preferred embodiment of the present invention and circuit for detecting 170. This circuit for detecting 170 comprises sensing circuit 174 and a decision circuitry 172. This bypass resistance 160 comprises a switch 165, and in parallel with the electric capacity C8 shown in Figure 29. This switch 165 can be the bidirection switching device such as an electromagnetic type relay, a two-way solid-state relay, a bidirectional thyristor. This sensing circuit 174 is in order to sense electric current and/or the voltage of this input signal, during practical application, it is possible to for resistance, electric capacity, inductance or its combination. When the high-frequency ac signal that this signal provides for this ballasting circuit and when the DC signal of the low-frequency ac signal that this signal provides for civil power or emergent battery supply, this sensing circuit 174 can sense different voltage. This decision circuitry 172 judges whether the voltage that this sensing circuit 174 senses judges voltage lower than one, with corresponding this bypass resistance 160 of on or off. When this signal is high-frequency ac signal, this bypass resistance 160 makes high-frequency ac signal by this electric capacity C8 for cut-off; And when this signal is low-frequency ac signal or DC signal, this bypass resistance 160 makes low-frequency ac signal or DC signal by this bypass resistance 160 for conducting.
So, when ballasting circuit exists, this ballasting circuit can provide the AC signal with high voltage and higher-frequency to light-emitting diode lamp tube. Now, this electric capacity C8 is to this AC signal dividing potential drop, to avoid too high voltages across on the light emitting diode in this light-emitting diode lamp tube. When directly being provided low voltage and the relatively AC signal of low frequency or when being provided a DC signal by a DC supply for emergency by an alternating current power supply, this electric capacity C8 is replaced by this bypass resistance 160, to avoid this electric capacity C8 to cause higher impedance to affect the normal operation of light-emitting diode lamp tube.
Figure 31 is the circuit diagram of the bypass resistance 160 of the ballast circuit for detecting 680 of the 3rd preferred embodiment of the present invention and circuit for detecting 170. This bypass resistance 160 comprises a transistor switch J1. In the present embodiment, transistor switch J1 is a vague and general formula metal-oxide half field effect transistor (P-typeDepletionModeMOSFET) of P type, when its gate voltage adjacent boundary's voltage higher than one for cut-off, for conducting during lower than this neighbour's circle voltage. This circuit for detecting 170 comprises the inductance 171 of mutual inductance and 173, one resistance 176, one diode 175 and electric capacity 177 and 178. One outfan of this inductance 173 and ballast circuit for detecting 680 couples. This inductance 171 is in parallel with this electric capacity 178 connected and this resistance 176. The anode of this diode D4 couples a junction point of this electric capacity 178 and this resistance 176, and its negative electrode couples this electric capacity 177. The two ends of this electric capacity 177 are connected with the gate of transistor switch J1 and source electrode respectively.
When ballasting circuit is connected to ballast circuit for detecting 680, has high frequency electric and flow through this inductance 173, make inductance 171 induce bigger voltage. This induced voltage is by this electric capacity 178 connected and this resistance 176. This electric capacity 177 is carried out unidirectional charging according to the cross-pressure on this resistance 176 by this diode 175. Therefore, when ballasting circuit is connected to ballast circuit for detecting 680, this electric capacity 177 stores a maximum voltage of cross-pressure on this resistance 176, makes the gate voltage of transistor switch J1 be cut-off higher than more than this neighbour's circle voltage of source electrode. So, this electric capacity C8 is retained in circuit to provide voltage divide function. When directly being provided the AC signal of low voltage and relatively low frequency by civil power or when being provided DC signal by DC supply for emergency, the voltage of this inductance 171 sensing is extremely low or nothing. Now, the gate voltage of transistor switch J1 fails to be higher than more than this neighbour's circle voltage of source electrode and be conducting, and then is bypassed by this electric capacity C8.
Wherein, if described diode 175 reversal connection, it is possible to store minimum amount of voltage that, correspondingly described transistor switch J1 needs to be altered to other kinds of MOS transistor.
In a further preferred embodiment, the inductance 171 and 173 of mutual inductance can substitute by transformator.
Figure 32 is the circuit diagram of the bypass resistance 160 of the ballast circuit for detecting 680 of the 4th preferred embodiment of the present invention and circuit for detecting 170. This bypass resistance 160 comprises two-way admittance switch and an inductance 162 of series connection, and at the present embodiment, two-way admittance switch is bidirectional triode thyristor TR. This circuit for detecting 170 comprises an electric capacity 178, resistance 176 and resistance 179 and a two-way trigger tube DB. This resistance 176 and this electric capacity 178 of series connection are in parallel with this electric capacity C8. This resistance 179 one end connects a junction point of this resistance 176 and this electric capacity 178 to receive detection signal produced by circuit for detecting 170, and the other end connects one end of this two-way trigger tube DB. The other end of this two-way trigger tube DB connects a gate of this bidirectional triode thyristor TR. Wherein, the pressure voltage of described bidirectional triode thyristor TR need 250 volts (V) or more than because civil power is at least 100V, and the voltage peak of reality is 141.4V, and circuit for detecting output voltage is at least 400V. When described detection signal voltage (i.e. the cross-pressure of this electric capacity 178) is more than or equal to scheduled voltage, described bidirectional trigger diode DB triggers described bidirectional triode thyristor TR conducting, and described scheduled voltage is more than 20 volts.
When directly being provided low voltage and the relatively AC signal of low frequency or when being provided DC signal by DC supply for emergency, the cross-pressure of this electric capacity C8 is high pressure, and this electric capacity 178 is charged by this resistance 176 by alternating current power supply. When voltage in this electric capacity 178 reaches a trigger voltage of this two-way trigger tube DB, two-way trigger tube DB turns on, and now an electric current triggers bidirectional triode thyristor TR conducting by this resistance 179 and bypasses this electric capacity C8. When ballasting circuit is connected to ballast circuit for detecting 680, the cross-pressure of this electric capacity C8 is low pressure, and the undertension of this electric capacity 178 makes this two-way trigger tube DB maintain cut-off to reach this trigger voltage of this two-way trigger tube DB. Now, this bidirectional triode thyristor TR, also for ending, makes this electric capacity C8 provide the function of dividing potential drop.
The embodiment of the present invention can also use thyristor (Thyristor), but owing to alternating current is two-way flow, it is therefore desirable to two assemblies; Bidirectional triode thyristor TR is bidirectional component, therefore only needs an assembly.
It addition, when the gate of bidirectional triode thyristor TR arrives after trigger voltage, conducting state can be maintained and when each half cycle of supply voltage replaces, will automatic cut-off, therefore be suitable for the applied environment of the embodiment of the present invention. For bidirectional triode thyristor TR, trigger elements can adopt bidirectional diode thyristor (DIAC), brilliant pipe (UJT), programmable list junction crystal (PUT), neon lamp, and it is the most desirable with bidirectional diode thyristor, it is using capacitor as circuit charging/discharging function, producing the effect of switch, fast (2) low power consumption (3) positive-negative half-cycle of (1) operating rate that has the advantages of of described trigger elements excites angle symmetrical. It is noted that above-mentioned ballast circuit for detecting 680 can be arranged on light-emitting diode lamp tube interiorly or exteriorly, and do not affect its function; And also apply to the application examples of both-end energising.
In sum, no matter the light-emitting diode lamp tube tube face of the present invention is single-ended electrified or both-end energising and input power is AC signal or DC signal, all can normal operation; Also the program being simultaneously suitable for starting in real time (InstantStart) or palpus preheating starts lighting modes such as (ProgramStart). Therefore, it can not changing the fluorescent tube that on the basis of original finishing, directly replacement is traditional, and can directly use from two pin incoming transport civil powers of fluorescent tube one end when not using ballast or ballast to break down. Furthermore, the ballast circuit for detecting of the present invention light-emitting diode lamp tube can be made automatically to identify fluorescent tube front end is to connect ballast, or civil power or DC supply for emergency etc., thus auto-adjusting circuit structure, it is achieved compliant applications is in multiple input condition.
Figure 33 is the circuit diagram of the light-emitting diode lamp tube 100 of first preferred embodiment of the present invention. Light-emitting diode lamp tube 100 comprises rectification unit 110, filter circuit 120, light-emitting diode (LED) module 630, compatible circuit 140 containing ballast circuit for detecting 680 and release can circuit 150. This rectification unit 110 is electrically connected the first pin A1 of this light-emitting diode lamp tube 100, the second pin A2, in order at least one of AC rectification coupling this first pin A1 and this second pin A2 is become unidirectional current. This compatible circuit 140 is electrically connected the 3rd pin B1, the 4th pin B2 of this light-emitting diode lamp tube 100, in order at least one of AC rectification coupling the 3rd pin B1 and the 4th pin B2 is become unidirectional current. Electrofiltration wave circuit 120 is electrically connected this rectification unit 110 and this compatible circuit 140 to receive this unidirectional current, in order to be filtered by this unidirectional current. Described light-emitting diode (LED) module 630 comprises a DC-to-DC switching circuit and at least one light-emitting diode group 202, described DC signal provide electric current to flow through described at least one light-emitting diode group 202 after receiving described filtering, and described current stabilization is in predetermined current value. DC-to-DC switching circuit includes transistor switch 631, diode 632, inductance 633 and electric capacity of voltage regulation 634. The capacitance of electric capacity of voltage regulation 634 is preferably more than 5uF.
Wherein, if input signal is civil power AC100V-240V/50/60HZ, at least one light-emitting diode group 202 can be driven normally; And when 300V-700V/20K-60kHZ produced by input signal is ballast, if this filter circuit 120 described also can store roughly the same voltage, the electric capacity C8 of described ballast circuit for detecting 680 parallel connection needs the input voltage of energy dividing potential drop 50% to 90%, therefore the capacitor's capacity of described electric capacity C8 should at below 1uF, preferred range is 50-1000nF, more preferably range for 60-700nF. Light-emitting diode (LED) module 630 is electrically connected this filter circuit 120, and the unidirectional current of corresponding filtering and luminous.
Compatible circuit 140 is electrically connected the 3rd pin B1 and the 4th pin B2. Compatible circuit 140 provides the first unidirectional current path I1 and the second unidirectional current path I2. First unidirectional current path I1 is electrically connected this light-emitting diode (LED) module 630, with allow electric current by light-emitting diode (LED) module 630 flow to the 3rd pin B1 and four pin B2 one of them. Second unidirectional current path I2 is electrically connected this filter circuit 120, and to allow electric current, by the 3rd pin B1 and four pin B2, one of them flows to filter circuit 120.
In the present embodiment, this rectification unit 110 is a bridge rectifier, comprises diode D1, D2, D3 and D4, in order to alternating current is carried out all wave rectification, to produce unidirectional current.
One anode of diode D3 is electrically connected one end of this filter circuit 120, and negative electrode is electrically connected an anode of this diode D1, and a negative electrode of this diode D1 is electrically connected the other end of this filter circuit 120. The junction point of above-mentioned diode D1 and D3 is electrically connected this first pin A1. The anode of diode D4 is electrically connected the other end of this filter circuit 120, and negative electrode is electrically connected the negative electrode of diode D2, and the negative electrode of diode D2 is electrically connected the negative electrode of diode D1. The junction point of above-mentioned diode D2 and D4 is electrically connected this second pin A2.
This rectification unit 110 can also be other kinds of full-wave rectifying circuit or half-wave rectifying circuit, and does not affect the function that the present invention is intended to reach.
In the present embodiment, this filter circuit 120 comprises filter capacitor C1. This filter circuit 120 receives the unidirectional current after this rectification unit 110 and compatible circuit 140 rectification, and filters the radio-frequency component in this unidirectional current. Through this filtered unidirectional current of filter circuit 120, its waveform is preferably a smooth DC waveform.
This filter circuit 120 can also be that other can filter the filter circuit of radio-frequency component, and does not affect the function that the present invention is intended to reach.
In the present embodiment, the inductance 633 in light-emitting diode (LED) module 630 is connected with transistor switch 631, then in parallel with the filter capacitor C1 of filter circuit 120. And the anode of diode 632 is electrically connected one end (namely with the junction point of this transistor switch 631) of inductance 633, the anode of its negative electrode and this at least one light-emitting diode group 202 is electrically connected, and the negative electrode of this at least light-emitting diode group 202 is electrically connected the other end of this inductance 633.
Transistor switch 631 receives pulse signal, periodically to turn on according to this pulse signal and to end. Above-mentioned pulse signal can be the pulse signal of a fixed pulse width, or by PWM controller (not shown) pulse width modulation signal produced by the curtage of this at least light-emitting diode group 202. When transistor switch 631 turns on, the electric current of this inductance 633 flows through this transistor switch 631. When this transistor switch 631 ends, the electric current of inductance 633 flow to this at least light-emitting diode group 202 through diode 632, makes this at least one light-emitting diode group 202 luminous.
In the present embodiment, transistor switch 631 is N-type metal-oxide half field effect transistor, and P type metal-oxide half field effect transistor, or enhancement mode metal-oxide half field effect transistor, vague and general type metal-oxide half field effect transistor, bipolar transistor etc. have the transistor of switching function and are also applicable to the present invention.
In the present embodiment, ballast circuit for detecting 680 can adopt arbitrary ballast circuit for detecting of the 160+170 of Figure 29-31.
Figure 34 is the circuit diagram of the ballast circuit for detecting of another preferred embodiment according to the present invention.
Ballast circuit for detecting 680 comprises bypass resistance 160, circuit for detecting 170; Wherein bypass resistance 160 comprises bidirectional triode thyristor TR and inductance 162, and circuit for detecting 170 comprises electric capacity 177 and 178, resistance 176 and 179, two-way trigger tube DB.
Bidirectional triode thyristor TR is in parallel with the two ends of testing capacitance (not shown) after connecting with inductance 162. Resistance 176 is in parallel with the bidirectional triode thyristor TR connected and inductance 162 after connecting with electric capacity 178. One end of two-way trigger tube DB receives the triggering end of bidirectional triode thyristor TR, and the other end is connected with one end of electric capacity 177. The other end of electric capacity 177 is connected to inductance 162. It is connected to resistance 179 between the junction point of two-way trigger tube DB and electric capacity 177 and the junction point of resistance 176 and electric capacity 178.
During the input of high-frequency ac signal: testing capacitance (not shown) two ends are alternating voltage, and electric capacity 178 carries out discharge and recharge through resistance 176. Owing to the RC constant of electric capacity 178 and resistance 176 is far above time cycle of AC signal, the voltage of electric capacity 177 threshold values always below two-way trigger tube DB, two-way trigger tube DB is not turned on, and bidirectional triode thyristor TR also remains off; High-frequency ac signal is load supplying only by testing capacitance.
During DC signal input: electric capacity 178 is charged through resistance 176, electric capacity 177 is charged through resistance 179, after continuing for some time, electric capacity 177, electric capacity 178 voltage be gradually increased to exceed the threshold values of two-way trigger tube DB, after two-way trigger tube DB triggers, bidirectional triode thyristor TR gate pole flows through certain electric current, and bidirectional triode thyristor TR turns on, to bypass testing capacitance.
Figure 35 is the flexible circuit of ballast circuit for detecting. Figure 35 and Figure 34 compares, and eliminates resistance 179 and electric capacity 177. So can further simplify circuit, improve reliability.
As the deformation of above-described embodiment, available mechanical switch replaces ballast circuit for detecting to determine whether input signal bypasses testing capacitance.
Figure 36 A-C is ballast circuit for detecting application several deformation to compatible circuit. Figure 36 A and Figure 24 compares, and electric capacity C4, C5 change into electric fuse F1, F2 respectively, and ballast circuit for detecting 680 is in parallel with electric capacity C3. Figure 36 B, compared to the compatible circuit shown in Figure 24, adds two ballast circuit for detecting 680, is parallel to the branch road of electric capacity C3 and C5 series connection or the branch road of C3 and C4 series connection respectively. Figure 36 C, compared to Figure 36 B, eliminates electric capacity C3, adds electric capacity C6 and electric capacity C7, and two ballast circuit for detecting 680 are connected in parallel on the branch road of electric capacity C7 and C5 series connection and the branch road of electric capacity C4 and C6 series connection respectively.
Refer to shown in Figure 37, for the circuit diagram of a kind of light-emitting diode lamp tube in the embodiment of the present invention, including: light emitting diode the 130, first rectification unit 110, filter circuit 120, compatible circuit 140 and release can circuit 150. Described light-emitting diode (LED) module 130 includes light-emitting diode group 202, and described compatible circuit 140 includes current adjustment unit the 144, second rectification unit 142. Described light emitting diode 130 includes light-emitting diode group 202.
Described current adjustment unit 144 connects the 3rd pin B1, the 4th pin B2 and described second rectification unit 142.
One end of described second rectification unit 142 connects one end of described light emitting diode 130 and described first rectification unit 110, and another end of the second rectification unit 142 connects the other end of described light emitting diode 130 and described first rectification unit 110. Described first rectification unit 110 also connects the first pin A1 and the second pin A2.
The anode link of described light-emitting diode group 202 connects the anode of described light emitting diode 130, and the cathode connection terminal of described light-emitting diode group 202 connects the negative electrode of described light emitting diode 130.
Described light-emitting diode group 202 can include a light emitting diode, it would however also be possible to employ multiple series, parallel or series-parallel light emitting diode.
According to a light emitting diode, then the anode of light emitting diode is as the anode link of light-emitting diode group 202, and the negative electrode of light emitting diode is as the cathode connection terminal of light-emitting diode group 202. According to the light emitting diode of multiple series connection, then the anode of first light emitting diode is as the anode link of light-emitting diode group 202, and the negative electrode of last light emitting diode is as the cathode connection terminal of light-emitting diode group 202. According to the light emitting diode of multiple parallel connections, then the anode of the light emitting diode linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode linked together is as the cathode connection terminal of light-emitting diode group 202.
According to multiple series-parallel light emitting diodes (multiple light emitting diode strings namely in parallel), the anode of the light emitting diode string then linked together is as the anode link of light-emitting diode group 202, and the negative electrode of the light emitting diode string linked together is as the cathode connection terminal of light-emitting diode group 202. For clearer explanation principles of the invention, following example include a light emitting diode for light-emitting diode group 202 and illustrate, can adopt in actually used multiple series connection or, in parallel or series-parallel light emitting diode is as light-emitting diode group.
The working current value scope that described current adjustment unit 144 is suitable to according to described ac input signal provides current modifying signal, the current value of described current modifying signal and described light-emitting diode group 202 predetermined matches. Current value herein matches and refers to: after current modifying signal flows through other circuit of light-emitting diode lamp tube, its output to the current value of light-emitting diode group 202 less than the rated current of light-emitting diode group 202, optionally, drop in the scope of the predetermined working current value scope of light-emitting diode group 202. Described ac input signal can be produced by ballast.
Traditional fluorescent tube be connected directly between the first pin A1, the second pin A2, between the 3rd pin B1 and the 4th pin B2. The compatible circuit 140 of the present embodiment can adjust the current value of the ac input signal inputted in the driving situation of Double-End Source input, the working current value scope making current value and the light-emitting diode group 202 of the signal after adjusting predetermined matches, and this makes the LED driving circuit of the present embodiment can also be connected directly between the first pin A1, the second pin A2, the 3rd pin B1 and the four pin B2 are operated. So both without using special light emitting diode, without the dismantlement work carrying out ballast.
Below each ingredient of LED driving circuit shown in Figure 37 is elaborated.
Described current adjustment unit 144 may include that the first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5.
Described second the first end adjusting electric capacity C4 connects described 3rd pin B1, and the second the second end adjusting electric capacity C4 connects the described 3rd the second end adjusting electric capacity C5 and first and adjusts first end of electric capacity C3. Described 3rd the first end adjusting electric capacity C5 connects described 4th pin B2. Described first the second end adjusting electric capacity C3 connects described current adjustment unit 144.
Described first adjustment electric capacity C3, the second adjustment electric capacity C4 and the three adjust electric capacity C5 and all can adopt thin-film capacitor.
Described second rectification unit 142 includes: the 5th diode D5 and the six diode D6.
The negative electrode of described 5th diode D5 connects the anode of described light emitting diode 130, and the anode of described 5th diode D5 connects the negative electrode of described current adjustment unit 144 and the 6th diode D6. The anode of described 6th diode D6 connects the negative electrode of described light emitting diode 130. 3rd pin B1 or the 4th pin B2 ac input signal received can be processed as direct current signal by the second rectification unit 142.
Described first rectification unit 110 includes: the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4. First diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 form bridge rectifier, process the ac input signal received for direct current signal.
Concrete, the negative electrode of described first diode D1 connects the negative electrode of described 3rd diode D3 and the anode of described light emitting diode 130. The anode of described second diode D2 connects the anode of described 4th diode D4 and the negative electrode of described light emitting diode 130. The anode of described first diode D1 connects the negative electrode of the second diode D2 and described first pin A1. The anode of described 3rd diode D3 connects the negative electrode of the 4th diode D4 and described second pin A2. Certainly, the first rectification unit 110 can also adopt full-wave rectifying circuit or the half-wave rectifying circuit of other structures.
Can be seen that from the above, current adjustment unit the 144, second rectification unit 142, light emitting diode 130 and the first rectification unit 110 are connected in series, first adjustment electric capacity C3, the second current adjustment unit 144 adjusting electric capacity C4 and the three adjustment electric capacity C5 composition can provide the effect of impedance current limliting, so can reduce the cross-pressure being applied in light-emitting diode group 202, the electric current in light-emitting diode group 202 can also be adjusted, and reach the effect that electric current regulates. Owing to the current modifying signal of current adjustment unit 144 output also needs to other circuit in light-emitting diode lamp tube, so the current value of current modifying signal can be varied from, therefore, composition current adjustment unit 144 first adjust electric capacity C3, second adjust electric capacity C4 and the three adjust electric capacity C5 capacitance except the size and frequency with ac input signal relevant, also relevant with the circuit structure of other circuit in light-emitting diode lamp tube. Those skilled in the art can adjust electric capacity C3 according to practical situation to first, the second capacitance adjusting electric capacity C4 and the three adjustment electric capacity C5 is set.
Described LED driving circuit can also include: filter circuit 120, and described filter circuit 120 has filter capacitor C1.
Described filter capacitor C1 is in parallel with described light emitting diode 130, with the HFS with filtered signal.
Described LED driving circuit can also include: releases energy circuit 150, in parallel with described light emitting diode 130 and/or filter circuit 120, in order to discharge the electric charge on described filter capacitor C1. Filter circuit 120 still stores certain energy after electric power disconnection so that the situation of flicker even occurs in light-emitting diode group 202 still continuous illumination a period of time, and releases energy circuit 150 and can avoid the generation of this problem.
Concrete, described in release and can may include that the first resistance R1 and the second resistance R2 of series connection by circuit 150.
Described light emitting diode can also include auxiliary power module 190, described auxiliary power module 190 is electrically connected to described light emitting diode 130, when AC network disconnects, namely when described AC signal stops providing, auxiliary power module 190 electric current is provided to flow through light emitting diode 130.
Auxiliary power module 190 comprises energy-storage units 192 and voltage detection circuit. Described voltage detection circuit detects the voltage of described light emitting diode 130, and to determine whether described energy-storage units provides described electric current to described light emitting diode, it comprises resistance 194, diode 196 and bipolar junction transistor 198. Described resistance 194 one end couples the anode of the first end of described light emitting diode 130, and the other end couples the base stage of bipolar junction transistor 198. The collector of bipolar junction transistor 198 is also coupled to the anode of described light emitting diode 130, and emitter-base bandgap grading is couple to the positive pole of energy-storage units 192. The positive pole of diode 196 is also coupled to the positive pole of energy-storage units 192, and negative pole couples the anode of described light emitting diode 130. The negative pole of energy-storage units 192 is coupled to the negative electrode of the second end of described light emitting diode 130.
When civil power normal power supply, the voltage of the anode of described light emitting diode 130 higher than the cathode voltage of energy-storage units 192, therefore energy-storage units 192 by energy storage till pressure reduction is not enough to conducting bipolar junction transistor 198. When stopping power supply when city's electrical anomaly, energy-storage units 192 provides electrical power to described light emitting diode 130 to maintain described light emitting diode 130 continuous illumination by diode 196. Now, the forward bias voltage drop of the cross-pressure of described light emitting diode 130 collector lower than bipolar junction transistor 198 and emitter-base bandgap grading pressure reduction and diode 196 during due to the voltage of energy-storage units 192 compared with civil power normal power supply, therefore the brightness of illumination of described light emitting diode 130 will relatively mains-supplied time be low.
Energy-storage units 192 can be super capacitor, it is advantageous to for battery, for instance: lithium battery.
Referring to shown in Figure 38, for the circuit diagram of the light-emitting diode lamp tube in one embodiment of the invention, light-emitting diode lamp tube 100 comprises rectification unit 110, filter circuit 120, light-emitting diode (LED) module 630 and auxiliary power module 190. This rectification unit 110 is electrically connected the first pin A1 and the second pin A2 of this light-emitting diode lamp tube 100, in order to the AC rectification coupling this first pin A1 and this second pin A2 is become unidirectional current. This filter circuit 120 is electrically connected this rectification unit 110 to receive this unidirectional current, in order to be filtered by this unidirectional current. This light-emitting diode (LED) module 630 is electrically connected this filter circuit 120, and this unidirectional current of corresponding filtering and luminous. Auxiliary power module 190 is electrically connected to light-emitting diode (LED) module 630, when described AC signal stops providing, auxiliary power module 190 provides electric current to flow through the LED component 202 in light-emitting diode (LED) module 630.
In the present embodiment, this rectification unit 110 is bridge rectifier, comprises diode D1, D2, D3 and D4, in order to this alternating current is carried out all wave rectification, to produce this unidirectional current. The anode of this diode D2 is electrically connected one end of this filter circuit 120, and negative electrode is electrically connected the anode of this diode D1, and the negative electrode of described diode D1 is electrically connected the other end of this filter circuit 120. The junction point of above-mentioned diode D1 and D2 is electrically connected this first pin A1. The anode of this diode D4 is electrically connected this anode of this diode D2, and negative electrode is electrically connected an anode of this diode D3, and the negative electrode of this diode D3 is electrically connected this negative electrode of this diode D1. The junction point of above-mentioned diode D3 and D4 is electrically connected this second pin A2.
This rectification unit 110 can also be other kinds of full-wave rectifying circuit or half-wave rectifying circuit, and does not affect the function that the present invention is intended to reach.
In the present embodiment, this filter circuit 120 comprises filter capacitor C1, C2 and a filter inductance L1. This filter capacitor C1 is in parallel with this diode D1 and D2 connected. And this filter capacitor C2 and this filter inductance L1 connects, then in parallel with this filter capacitor C1. This filter circuit 120 receives the unidirectional current after this rectification unit 110 rectification, and filters the radio-frequency component in this unidirectional current. Through this filter circuit 120 this unidirectional current filtered, its waveform is a smooth DC waveform.
This filter circuit 120 can also be that other can filter the filter circuit of radio-frequency component, and does not affect the function that the present invention is intended to reach.
In the present embodiment, this light-emitting diode (LED) module 630 comprises inductance 633, at least one light-emitting diode group 202, transistor switch 631 and diode 632. This filter inductance L1 of this inductance 633 and this filter circuit 120 is common mode inductance, and this filter circuit 120 can be made to reach good electromagnetic interference (EMI) filter function. This inductance 633 is connected with this transistor switch 631, then in parallel with this electric capacity C2 of this filter circuit 120. And an anode of this diode 632 is electrically connected one end (namely with the junction point of this transistor switch 631) of this inductance 633, the anode of its negative electrode and this at least one light-emitting diode group 202 is electrically connected, and the negative electrode of this at least one light-emitting diode group 202 is electrically connected the other end of this filter inductance L1.
This transistor switch 631 receives a pulse signal, periodically to turn on according to this pulse signal and to end.
Above-mentioned pulse signal can be the pulse signal of a fixed pulse width, or by PWM controller (not shown) pulse width modulation signal produced by the electric current of this at least one light-emitting diode group 202. When transistor switch 631 turns on, the electric current of this inductance 633 flows through this transistor switch 631. When this transistor switch 631 ends, the electric current of this inductance 633 flows through this at least one light-emitting diode group 202 through diode 632, makes this at least one light-emitting diode group 202 luminous.
In the present embodiment, this transistor switch 631 is N-type metal-oxide half field effect transistor; And P type metal-oxide half field effect transistor, or enhancement mode metal-oxide half field effect transistor, vague and general type metal-oxide half field effect transistor, bipolar transistor etc. have the transistor of switching function and are also applicable to the present invention. This at least one light-emitting diode group 202 can be single string or many string light emitting diode strings, provides required illumination with the demand that correspondence is different.
Auxiliary power module 190 comprises energy-storage units 192, resistance 194, diode 196 and bipolar junction transistor 198. Described resistance 194 one end couples the anode of described light-emitting diode (LED) module 630, and the other end couples the base stage of bipolar junction transistor 198. The anode of at least one light-emitting diode group 202 that the collector of bipolar junction transistor 198 is also coupled in described light-emitting diode (LED) module 630, and emitter-base bandgap grading is couple to the positive pole of energy-storage units 192. The positive pole of diode 196 is also coupled to the positive pole of energy-storage units 192, and negative pole couples the negative electrode of at least one light-emitting diode group 202 in described light-emitting diode (LED) module 630. The negative pole of energy-storage units 192 is coupled to the negative electrode of described light-emitting diode (LED) module 630.
When civil power normal power supply, the anode voltage of described at least one light-emitting diode group 202 higher than the cathode voltage of energy-storage units 192, therefore energy-storage units 192 by energy storage till pressure reduction is not enough to conducting bipolar junction transistor 198. When stopping power supply when city's electrical anomaly, energy-storage units 192 provides electrical power to described at least one light-emitting diode group 202 to maintain described light-emitting diode (LED) module 630 continuous illumination by diode 196. Now, the brightness of illumination of described at least one light-emitting diode group 202 will relatively mains-supplied time be low.
In another embodiment, it is possible to the component height being arranged at printed circuit board (PCB) is classification foundation. On printed circuit board (PCB), component height is unified higher than the assembly of a predetermined altitude value is arranged at the same side; The setting of other assembly is then not intended to, it is possible in the same side or partly or entirely in opposite side.
Refer to shown in Figure 39, for the structural representation of the emergency light device in one embodiment of the invention. The first pin A1 and the second pin A2 of light-emitting diode lamp tube 100 are electrically connected to electrical network AC, and the 3rd pin B1 of light-emitting diode lamp tube 100 and the 4th pin B2 is electrically connected to auxiliary power module 190. Power supply is provided to light-emitting diode lamp tube 100 so at ordinary times by electrical network AC, energy-storage units in auxiliary power module 190 is charged simultaneously, when electrical network AC power supplies disconnects and stops providing described AC signal, auxiliary power module 190 powers to light-emitting diode lamp tube 100, to provide electric current to flow through at least one light emitting diode or light emitting diode. During practical application, auxiliary power module 190 can be external or be built in light-emitting diode lamp tube 100.
In the present embodiment, can pass through on light-emitting diode lamp tube 100, arrange eye-catching color, for instance: redness, green, blueness, yellow, black etc., point out this light-emitting diode lamp tube with emergency function, to distinguish common light-emitting diode lamp tube.
In the present embodiment, auxiliary power module 190 is provided with LED light (not drawing), when auxiliary power module 190 normal operation, for instance: energy-storage units can be electrically charged normally or energy-storage units is in power supply (electric discharge) state, and this display lamp is lighted.
This auxiliary power module 190 can be set to be built in light-emitting diode lamp tube.
In sum, no matter the unidirectional current that the alternating current that the light-emitting diode lamp tube input power that the present invention program proposes is electrical network to be provided or auxiliary power module provide, light-emitting diode (LED) module all can normal operation.
As shown in Figure 40 A-C, for the schematic diagram that the LED component 202 of the embodiment of the present invention connects, LED component 202 can be connected as shown in fig. 40 after two parallel connections again, also can connect again as shown in Figure 40 B after three parallel connections, also can connect again after many parallel connections (not shown), it is possible to after many series connection, parallel connection is as shown in figure 40 c again. The mesh architecture connected again after parallel connection shown in Figure 40 A and Figure 40 B, no matter having an advantage in that LED component 202 arbitrary group in parallel has how many damages to open a way individual, as long as any of which LED component 202 can normal operating, then all can flow through electric current and non-reason LED component and open a way and make lighting source stop luminescence. That is, the equivalent service life that can make lighting source extends. Framework in parallel again after series connection as shown in figure 40 c, have an advantage in that and all flow through equal electric current with the LED component 202 in a string, make the brightness uniformity with a string LED component 202 high, also avoid the cripetura in the service life that part LED component 202 causes because flowing through bigger electric current. Described LED component 202 is located on lamp plate, and described lamp plate is had at least one of which conductive layer, series, parallel or series-parallel LED component 202 and is electrically connected by described at least one of which conductive layer and reaches above-mentioned connection framework. Described at least one of which conductive layer is electrically connected to each other with at least one weld pad on described lamp plate.
Figure 41 A is the cabling schematic diagram of corresponding diagram 40A. As shown in Figure 41 A, each light-emitting diode component, 202a, 202b, 202c, the 202d as shown in dashed box, it is possible to include anode and cathode pads.
Metal wire in diagram (indicates in figure "+" and "-" two metal line) cabling show described light-emitting diode component 202a, the anode of 202b is connected by metal wire and is in isoelectric level, accordingly, LED component 202a, the negative electrode of 202b is connected and isoelectric level also by another metal wire, and therefore LED component 202a and 202b is in parallel connection. Similarly, light-emitting diode component 202c and 202d is also at parallel connection. Simultaneously, it is in equal potentials owing to the negative electrode of LED component 202a and 202b is connected by the anode of metal wire with LED component 202c and 202d, therefore LED component 202a in parallel, 202b and LED component 202c in parallel, 202d is in series relationship, thus forming circuit connection diagram as shown in Figure 41 A.
Additionally, the Wiring structure of the metal wire according to Figure 41 A is it can be seen that the metal wire of described light-emitting diode component includes first part 202-1 and Part II 202-2. Wherein, described first part 202-1 is in order to be electrically connected with the anode of described light-emitting diode component and negative electrode respectively, and described second part 202-2 is then for electrically connecting to adjacent first part 202-1, thus being at isoelectric level. From diagram, due in described first part 202-1 with LED component 202a, the area 202-1 of the anode of 202b metal part immediately respectively than with LED component 202a, the area 202-1 of the negative electrode of 202b metal part immediately is little, simultaneously also little than the anode metal wire immediately of negative electrode with LED component 202b in first part 202-1, LED component 202c extends area 202-1. More particularly, can including three parts being connected with anode with the single LED component anode negative electrode with single LED component negative electrode and with two adjacent LED component in described first part 202-1, its size is sequentially ascending. The metal width of what described Wiring structure brought the another advantage is that first part 202-1 metal width more than the second part 202-2, make described Part I 202-1 and LED component 202a, the metal part area of dissipation that the anode of 202b, negative electrode connect is relatively big under equal length, hence helps to the heat radiation of LED component light source.
As shown in figure 41b, for the cabling schematic diagram of corresponding diagram 40B circuit theory diagrams. As shown in figure 41b, three LED component 202a, 202b, the positive pole of 202c is commonly connected to same current potential, negative pole is connected to same current potential, and is connected with the positive pole of LED component 202d, thus forming a LED unit in parallel, then connect with follow-up LED unit, thus reticulation circuit structure in parallel again after forming the LED component series connection as shown in Figure 40 B.
Based on the principle same with legend shown in Figure 41 A, due to three parts being connected with anode with the single LED component anode negative electrode with single LED component negative electrode and with two adjacent LED component in described first part 202-1, its size is sequentially ascending, and the metal width that the metal width of first part 202-1 is more than the second part 202-2, and described Part I 202-1 and LED component 202a, the metal area that the anode of 202b, negative electrode connect is relatively big, hence helps to the heat radiation of LED component light source.
Figure 41 C is the trace-diagram of 20 LED component series connection parallel connections again of corresponding diagram 40C circuit theory diagrams. As shown in fig. 41c, the one 20 LED component string includes LED component 202a, 202b ..., 202t, the reticulation circuit structure connected again after three shown in e LED component parallel connection.
Based on the principle same with legend shown in Figure 41 A, due to three parts being connected with anode with the single LED component anode negative electrode with single LED component negative electrode and with two adjacent LED component in described first part 202-1, its size is sequentially ascending, and the metal width that the metal width of first part 202-1 is more than the second part 202-2, and described Part I 202-1 and LED component 202a, the metal area that the anode of 202b, negative electrode connect is relatively big, hence helps to the heat radiation of LED component light source.
In the present invention, lamp circuit module can arrange electronic building brick by printed circuit board, it is advantageous to two-sided for printed circuit board is equipped with electronic building brick. Rectification unit 110, filter circuit 120, compatible circuit 140, light-emitting diode (LED) module 630 ... wait the part or all of circuit in circuit to include dual inline type (DIP, dualinline-pin) package assembling. Lamp circuit module can be arranged on two ends lamp holder at least one. These dual-inline package assemblies are in the lamp holder of two ends at least one of printed circuit board, and on the same side of at least one of printed circuit board; It addition, lamp holder at least one interior printed circuit board in two ends may also set up the assembly of non-dual-inline package. Owing to dual-inline package assembly that component height is higher is arranged at the same side of printed circuit board, it is possible to effectively reduction has arranged the printed circuit board whole height of assembly.
Refer to Fig. 4, owing to lamp holder 3 is provided with air-vent, it is possible to make heat produced by these electronic building bricks in lamp holder can pass through air-vent and carry out heat loss through convection. It is also preferred that the left the material of fluorescent tube is glass. The conduction of heat of glass material is better than plastic material. When LED component 202 is affixed on tube inner wall, the LED component 202 produced heat that works can pass through glass tubing conduction and dispel the heat, and even heat produced by LED component 202 can also carry out right heat radiation through air-vent simultaneously.
For this, in order to the connection of convenient lamp holder 3 with fluorescent tube 1 is fixed, the scheme of the present embodiment is improved for the structure of lamp holder 3.
With reference to Fig. 4-5 and in conjunction with Fig. 7-9, lamp holder 3 be sheathed on fluorescent tube 1 outer time, lamp holder 3 is sheathed on outside end 101, and extends to transition part 103, partly overlaps with transition part 103.
Lamp holder 3, except hollow conductive pin 301, also includes insulation tube 302, and is fixedly arranged on the heat-conducting part 303 on insulation tube 302 outer peripheral face, and its hollow core conductive pin 301 is located on insulation tube 302. Insulation tube 302 one end towards fluorescent tube is stretched out in one end of heat-conducting part 303, bonding by PUR 6 between extension (stretching out the part of insulation tube) and the fluorescent tube 1 of heat-conducting part 303. In the present embodiment, lamp holder 3 extends to transition part 103 by heat-conducting part 303, and insulation tube 302 does not extend to transition part 103 towards one end of fluorescent tube 1, and namely insulation tube 302 has interval between one end and transition part 103 of fluorescent tube.
In the present embodiment, insulation tube 302 for insulating, does not limit use material as the material such as plastics, pottery at general state.
PUR 6 (comprise a kind of be commonly called as the material for welding powder) composition is preferably: phenolic resin 2127#, Lac, Colophonium, calcite in powder, zinc oxide, ethanol etc. This PUR 6 when high-temperature heating, can change its physical state and occur significantly to expand, reach the effect solidified, add the stickiness of material own, such that it is able to make lamp holder 3 and fluorescent tube 1 be in close contact, it is simple to LED daylight lamp realizes automated production. In the present embodiment, PUR 6 can present expansion after high-temperature heating and flow, and cools down the effect that namely can reach to solidify subsequently, and certainly, the selection of PUR composition of the present invention is not limited to this, also can be selected for the composition that high-temperature heating solidifies to predetermined temperature. Owing to PUR 6 of the present invention will not form hot environment due to the heating of the heating element such as power supply module and cause reliability decrease, it is possible to prevent the adhesive property of fluorescent tube 1 and lamp holder 3 in LED daylight lamp use procedure from reducing, raising long-term reliability.
Specifically, PUR 6 is filled between inner surface and the outer peripheral face of fluorescent tube 1 of heat-conducting part 303 extension (in Fig. 7 position shown in dotted line B). In other words, the position that PUR 6 is filled is passed through by the virtual plane (plane crossed drawn by dotted line B in Fig. 7) axially vertical with fluorescent tube 1, and sequential is between heat-conducting part 303, PUR 6 and the outer peripheral face of fluorescent tube 1. PUR 6 coating thickness can be 0.2mm��0.5mm, and PUR 6 can solidify after expanding, thus contacting with fluorescent tube 1 and lamp holder 3 being fixed on fluorescent tube 1. And owing to having difference in height between the outer peripheral face of both end 101 and main body 102, PUR therefore can be avoided to spill in main body 102 part of fluorescent tube, remove follow-up manual wipping process from, improve the yields produced.
During bonding, conduct heat to heat-conducting part 303 by external heat equipment, then conducting again to PUR 6, making PUR 6 solidify after expanding, thus being fixedly bonded on fluorescent tube 1 by lamp holder 3.
In the present embodiment, such as Fig. 7, insulation tube 302 includes the first pipe 302a and the second pipe 302b that connect vertically, and the external diameter of the second pipe 302b external diameter less than the first pipe 302a, the external diameter difference range of two pipes is 0.15mm��0.3mm. Heat-conducting part 303 is located on the outer peripheral face of the second pipe 302b, and the outer surface of heat-conducting part 303 and the outer peripheral face of the first pipe 302a are concordant so that the outer surface flat smooth of lamp holder 3, it is ensured that whole lighting source is uniform force in packaging, transportation. Wherein, heat-conducting part 303 along the axial length of length and the insulation tube 302 of lamp holder axial direction than for 1:2.5��1:5, i.e. heat-conducting part length: insulation tube length is 1:2.5��1:5.
In the present embodiment, the outer surface of the inner surface of the second pipe 302b and heat-conducting part 303 and the outer surface of end 101 and transition part 103 forms an accommodation space. in order to ensure bonding fastness, the present embodiment arranges the second pipe 302b and is sheathed on outside fluorescent tube 1 at least partly, PUR 6 has between the second pipe 302b and the fluorescent tube 1 being partially filled in overlapped (in figure position shown in dotted line A), bonding also by PUR 6 between the two, namely part holt melt glue 6 is between the inner surface and the outer surface of end 101 of the second pipe 302b, in other words, PUR 6 is filled in the position of described accommodation space to be passed through by the virtual plane (dashed lines the drawn plane crossed of A) that one and fluorescent tube are axially vertical, sequential is heat-conducting part 303, second pipe 302b, PUR 6 and end 101. spy gives explanation, and in the present embodiment, PUR 6 is not required to be fully filled with above-mentioned accommodation space (leaving space between heat-conducting part 303 and the second pipe 302b in figure). during manufacture, when coating hot-melt adhesive 6 between heat-conducting part 303 and end 101, it is possible to suitably increase the amount of PUR so that in the process of subsequent heat, PUR can flow to due to expansion between the second pipe 302b and end 101, bonds connection after solidification and then by both.
Wherein, after the end 101 of fluorescent tube 1 is inserted in lamp holder 3, the end 101 of fluorescent tube 1 insert the axial length of lamp holder 3 part account for heat-conducting part 303 axial length 2/1 to three/3rds between, such benefit is: on the one hand, ensureing that hollow conductive pin 301 has enough creep age distances with heat-conducting part 303, both during energising, not easily short circuit makes people get an electric shock and initiation potential; On the other hand, due to the insulating effect of insulation tube 302 so that creep age distance between hollow conductive pin 301 and heat-conducting part 303 strengthens, make during by high voltage people more difficult because of electric shock initiation potential.
Further, for the PUR 6 of the second pipe 302b inner surface, the second pipe 302b is interposed between PUR 6 and heat-conducting part 303, and the effect that therefore heat conducts to PUR 6 from heat-conducting part 303 can be given a discount. Therefore, with reference to Fig. 5, the present embodiment arranges multiple breach 302c at the second pipe 302b towards one end (namely away from one end of the first pipe 302a) of fluorescent tube 1, increase the contact area of heat-conducting part 303 and PUR 6, it is beneficial to heat quickly conduct to PUR 6 from heat-conducting part 303, accelerates the solidification process of PUR 6. Meanwhile, when user touches heat-conducting part 303, due to the insulating effect of PUR 6 between heat-conducting part 303 and fluorescent tube 1, breakage will be had to get an electric shock because of fluorescent tube 1.
Wherein, heat-conducting part 303 can be the material of various easy conduction heat, is sheet metal, and has consideration attractive in appearance concurrently, for instance aluminium alloy in the present embodiment. Heat-conducting part 303 is (or claiming ring-type) in a tubular form, is set in outside the second pipe 302b. Insulation tube 302 can be various insulant, but is preferred to be not easy heat conduction, it is to avoid heat conducts to the power supply module within lamp holder 3, affects the performance of power supply module, and the insulation tube 302 in the present embodiment is plastic tube.
In other embodiments, heat-conducting part 303 can also be made up of multiple circumferentially-spaced along the second pipe 302b or not spaced sheet metal.
In other embodiments, lamp holder can also be arranged to other forms, for instance:
With reference to shown in Fig. 8-9, lamp holder 3, except including insulation tube 302, also includes magnetic conductive metal part 9, does not comprise heat-conducting part. Magnetic conductive metal part 9 is installed on the inner peripheral surface of insulation tube 302, and with fluorescent tube 1 radially with lap.
In the present embodiment, whole magnetic conductive metal part 9 is all located in insulation tube 302, and PUR 6 is coated on the inner surface of magnetic conductive metal part 9 (magnetic conductive metal part 9 is towards the surface of fluorescent tube 1), and bonding with the outer peripheral face of fluorescent tube 1. Wherein, in order to increase bond area, improve bonding stability, PUR 6 covers the whole inner surface of magnetic conductive metal part 9.
During manufacture, insulation tube 302 is inserted in an induction coil 11 so that induction coil 11 is with magnetic conductive metal part 9 along insulation tube 302 diametrically. Add man-hour, induction coil 11 is energized, electromagnetic field is formed after induction coil 11 energising, and electromagnetic field encounter magnetic conductive metal part 9 after be converted to electric current so that magnetic conductive metal part 9 generates heat, namely use electromagnetic induction technology magnetic conductive metal part 9 is generated heat, and heat conducts to PUR 6, PUR 6 expands after absorbing heat and flows, and cooling subsequently makes PUR 6 solidify, to realize being fixed on lamp holder 3 purpose of fluorescent tube 1. Induction coil 11 is as far as possible coaxial with insulation tube 302 so that energy transmission is comparatively uniform. In the present embodiment, the deviation between induction coil 11 and insulation tube 302 axis is less than 0.05mm. When, after bonding completing, fluorescent tube 1 being detached induction coil 11. In the present embodiment, PUR 6 can present expansion after absorbing heat and flow, and cools down the effect that namely can reach to solidify subsequently, and certainly, the selection of PUR composition of the present invention is not limited to this, also can be selected for the composition solidified after absorbing heat. Or, in other embodiments, magnetic conductive metal part 9 need not be additionally set at lamp holder 3, only need to directly mix the high magnetic conductivity material powder of predetermined ratio in PUR 6, such as: ferrum, nickel, ferrum nickel mixture etc., add man-hour, induction coil 11 is energized, after induction coil 11 energising, making the high magnetic conductivity material powder being evenly distributed in PUR 6 charged, and then PUR 6 is generated heat, PUR 6 expands after absorbing heat and flows, cooling curing subsequently, to realize being fixed on lamp holder 3 purpose of fluorescent tube 1.
Wherein, in order to support magnetic conductive metal part 9 preferably, the inner peripheral surface of insulation tube 302 is greater than the internal diameter of remainder 302e for the internal diameter supporting the position 302d of magnetic conductive metal part 9, and form a step, axial one end of magnetic conductive metal part 9 acts against on step, and after making to arrange magnetic conductive metal part 9, the inner surface of whole lamp holder is concordant. It addition, magnetic conductive metal part 9 can be variously-shaped, for instance lamellar in circumferential array or tubulose etc., magnetic conductive metal part 9 is set herein in the tubulose coaxial with insulation tube 302.
In other embodiments, the inner peripheral surface of insulation tube 302 can also be following form for supporting the position of magnetic conductive metal part 9: with reference to Figure 10, Figure 11, the inner peripheral surface of insulation tube 302 has the support portion 313 towards the internal projection of insulation tube 302, and, be additionally provided with protuberance 310 on the inner peripheral surface of insulation tube 302, in support portion 313 towards lamp tube main body side, the radial thickness of described protuberance 310 is less than the radial thickness of described support portion 313. Such as Figure 11, the protuberance 310 of the present embodiment is connected vertically with support portion 313, and magnetic conductive metal part 9 acts against the upper limb (i.e. support portion towards the end face of protuberance side) of support portion 313 in the axial direction, acts against the radially inner side of protuberance 310 in the circumferential. It is to say, at least some of protuberance 310 is between the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302. Wherein, protuberance 310 can be the multiple projections along the circumferentially extending annular of insulation tube 302 or the circumferentially spaced arrangement of inner peripheral surface around insulation tube 302, in other words, the arrangement of projection can be circumferentially equidistant from being spaced or non-equally spaced arrangement, as long as the contact area that can make the outer surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302 reduces, but the function of fixing PUR 6 can be reached.
Described support portion 313 is 1mm��2mm by the inner peripheral surface of insulation tube 302 protruding 310 thickness to the inside, and the thickness of protuberance 310 is less than described support portion 313 thickness, and the thickness of described protuberance 310 is 0.2mm��1mm.
In other embodiments, lamp holder 3 is also designed to all-metal, now needs the bottom at hollow conductive pin to set up an insulator, makes to be electrically insulated between lamp holder 3 and hollow conductive pin, to reach high pressure resistant effect, it is to avoid user touches electric shock problem during lamp holder 3.
In other embodiments, lamp holder 3 is also designed to the structure of plastics and metal (metal part connects conductive pin) hybrid junction, the bottom at hollow conductive pin is now needed to set up an insulator, make to be electrically insulated between lamp holder 3 and hollow conductive pin, to reach high pressure resistant effect, it is to avoid user touches electric shock problem during lamp holder 3.
In other embodiments, with reference to Figure 12, wherein Figure 12 is magnetic conductive metal part 9 view radially, magnetic conductive metal part 9 has at least one emptying aperture structure 901, with reference to Figure 19, and emptying aperture structure 901 generally circular in shape, but it is not limited to circle, can be such as oval, square, star etc., as long as the contact area of the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302 can be reduced, but heat cure and the function of hot melt 6 glue can be reached. It is preferred that emptying aperture structure 901 area accounts for the 10%��50% of magnetic conductive metal part 9 area. The arrangement of emptying aperture structure 901 can be circumferentially equidistant from being spaced or non-equally spaced arrangement etc.
In other embodiments, with reference to Figure 13, magnetic conductive metal part 9 has a scoring structure 903 towards the surface of described insulation tube, wherein Figure 13 is magnetic conductive metal part 9 view radially, scoring structure 903 can be the structure of the inner surface exterior surface relief from magnetic conductive metal part 9, but can also be the structure of outer surface inner surface relief from magnetic conductive metal part 9, its purpose is to the outer surface in magnetic conductive metal face 9 and formed raised or sunken, to reach to reduce the purpose of the contact area of the inner peripheral surface of the outer surface making magnetic conductive metal part 9 and insulation tube 302. But it should be noted that simultaneously it should be guaranteed that magnetic conductive metal part 9 and fluorescent tube stable adhesion, reach the function of heat cure PUR 6.
In the present embodiment, with reference to Figure 14, magnetic conductive metal part 9 is a circular ring. In other embodiments, with reference to Figure 15, magnetic conductive metal part 9 is an anon-normal circular rings, such as but not limited to vesica piscis, when fluorescent tube 1 and lamp holder 3 are oval, the short axle of vesica piscis slightly larger than lamp tube end external diameter, with the contact area of the inner peripheral surface of the outer surface and insulation tube 302 that reduce magnetic conductive metal part 9, but can reach the function of heat cure PUR 6. In other words, having support portion 313 on the inner peripheral surface of insulation tube 302, the magnetic conductive metal part 9 of anon-normal circular rings is located on support portion, therefore, the contact area that can make the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302 reduces, and can reach again the function of solidifying hot-melt adhesive 6.
With continued reference to Fig. 2, the LED daylight lamp of the present embodiment also includes bonding agent 4, lamp plate insulating cement 7 and light source glue 8. Lamp plate 2 is pasted on the inner peripheral surface of fluorescent tube 1 by bonding agent 4. Shown in figure, bonding agent 4 can be silica gel, and its form is not limit, it is possible to be several sections shown in figure, or a section in strip.
Lamp plate insulating cement 7 is applied to lamp plate 2 on the surface of light source 202 so that lamp plate 2 does not expose, thus playing the insulating effect being isolated from the outside by lamp plate 2. Reserving the through hole 701 corresponding with light source 202 during gluing, light source 202 is located in through hole 701. The constituent of lamp plate insulating cement 7 includes vinyl polysiloxane, hydrogen-based polysiloxanes and aluminium oxide. The thickness range of lamp plate insulating cement 7 is 100 ��m��140 ��m (micron). If less than 100 ��m, then do not have enough insulating effects, if greater than 140 ��m, then can cause the waste of material.
Light source glue 8 is applied to the surface of LED component 202. The color of light source glue 8 is transparent color, to ensure light transmittance. Coating is to LED component 202 surface, and the shape of light source glue 8 can be graininess, strip or lamellar. Wherein, the parameter of light source glue 8 has refractive index, thickness etc. What the refractive index of light source glue 8 allowed ranges for 1.22��1.6, if the refractive index of light source glue 8 be LED component 202 housing refractive index open radical sign, or the refractive index of light source glue 8 be LED component 202 housing refractive index open positive and negative the 15% of radical sign, the angular range that total reflection (InternalTotalReflection) occurs then can be made less, and therefore light transmittance is better. Here light source shell refers to the housing holding LED grain (or chip). In the present embodiment, the ranges of indices of refraction of light source glue 8 is 1.225��1.253. The thickness range that light source glue 8 allows is 1.1mm��1.3mm, if less than 1.1mm, it will lid is LED component 202 incessantly, and poor effect if greater than 1.3mm, then can reduce light transmittance, also can increase material cost simultaneously.
During assembling, first light source glue 8 is applied to the surface of light source 202; Then lamp plate insulating cement 7 is applied on the side surface on lamp plate 2; Again LED component 202 is fixed on lamp plate 2; Then a side surface opposing to lamp plate 2 and LED component 202 is pasted by bonding agent 4 inner peripheral surface being fixed on fluorescent tube 1; The last end that lamp holder 3 is fixed on fluorescent tube 1 again, electrically connects LED component 202 with lamp circuit module 5 simultaneously. Or as Figure 10 utilizes flexible circuit board to get over transition part 103 and power solder (namely welding with lamp circuit module 5) through transition part 103, or the mode taking conventional wires routing allows lamp plate 2 and lamp circuit module 5 be electrical connected, last lamp holder 3 is connected on the transition part 103 at strengthening section place by the mode of Fig. 7 (by the structure of Fig. 4-5) or Fig. 8 (by the structure of Fig. 9), forms a complete LED daylight lamp.
In the present embodiment, lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1 by bonding agent 4 so that LED component 202 is sticked on the inner peripheral surface of fluorescent tube 1, so can increase whole lighting source lighting angle, expanding angle of visibility, so arranging generally can so that angle of visibility can more than 300 degree. By being coated with lamp plate insulating cement 7 at lamp plate 2, LED component 202 is coated with the light source glue 8 of insulation, it is achieved the insulation processing to whole lamp plate 2, such that make fluorescent tube 1 break, without there is electric shock accidents, meeting the requirement of safety, improving safety.
In other embodiments, lamp plate 2 can be circuit board, for example, any one in flexible base board, strip aluminium base, FR4 plate or flexible circuit board. Owing to the fluorescent tube 1 of the present embodiment is glass lamp, if lamp plate 2 adopts strip aluminium base or the FR4 plate of rigidity, so when fluorescent tube breaks, such as, after breaking in two, whole fluorescent tube is still able to remain the state of straight tube, at this moment user likely will be considered that lighting source can also use and go to install voluntarily, it is easy to causes electric shock accidents. Owing to flexible circuit board has pliability and flexible characteristic, solve the situation that rigid strip aluminium base, FR4 plate or Conventional communication three layers flexible base board pliability is not enough with bendability, therefore the lamp plate 2 of the present embodiment adopts flexible circuit board, so after fluorescent tube 1 breaks, namely fluorescent tube 1 cannot support the fluorescent tube 1 broken after breaking continues to remain straight tube state, to inform that user's lighting source can not use, it is to avoid the generation of electric shock accidents. Therefore, after adopting flexible circuit board, it is possible to alleviate electric shock problem that is broken due to glass tubing and that cause to a certain extent.
Namely following example explain using flexible circuit board as invention lamp plate 2.
Wherein, can be connected by wire routing between flexible circuit board and the outfan of lamp circuit module 5, or connect through male plug 501, female plug 201, or, by being welded to connect. Consistent with the fixed form of aforementioned lamp plate 2, a side surface of flexible circuit board is bonded and fixed to the inner peripheral surface of fluorescent tube 1 by bonding agent 4, and the two ends of flexible circuit board can select fixing or not be fixed on the inner peripheral surface of fluorescent tube 1.
If the two ends of flexible circuit board are not fixed on the inner peripheral surface of fluorescent tube 1, if adopting wire to connect, moving in process follow-up, due to two ends freely, process being susceptible to rock in follow-up moving, thus making it possible to wire and rupture. Therefore flexible circuit board with the connected mode prioritizing selection of power supply for welding, specifically, with reference to Figure 16, it is possible to be welded on the outfan of power supply 5 after directly flexible circuit board is got over the transition part 103 of strengthening section structure, remove the use of wire from, improve the stability of product quality. Now flexible circuit board need not arrange female plug 201, the outfan of power supply 5 is also without arranging male plug 501, the concrete practice can be that the outfan of power supply 5 is reserved pad a, and on pad a, stay stannum so that the thickness of stannum on pad increases, convenient welding, accordingly, the end of flexible circuit board also reserves pad b, and the pad b of the pad a of power output end Yu flexible circuit board is welded together.
The pad b of flexible circuit board has two unconnected weld pads, electrically connects with light source 202 both positive and negative polarity respectively. In other embodiments, in order to be able to reach the extendibility in compatible and follow-up use, the quantity of pad b can have plural weld pad, such as 3,4 or more than 4, when weld pad is 3,3rd weld pad can serve as ground connection and use, and when weld pad is 4, the 4th weld pad can be used to make signal input end. Accordingly, pad a also leaves the weld pad identical with pad b quantity. When weld pad is more than 3, the arrangement between weld pad side by side or can line up two row for string, configuring in position according to accommodating size time actually used, causing short circuit as long as not electrically connecting each other. In other embodiments, if by part circuit production on flexible circuit board, pad b can only have an independent weld pad, and weld pad quantity is fewer, more saves flow process in technique; The more, the electrical connection of flexible circuit board and power output end is fixing more to be strengthened weld pad quantity.
In other embodiments, the inside of pad b weld pad can have perforation, when the pad b of pad a and flexible circuit board welds together, the stannum of welding can pass described perforation, when stannum passes perforation, perforation can be deposited in around, when after cooling, being formed and have the soldered ball more than penetration hole diameter, it seems the function of nail that this ball structure can play, except fixing through the stannum between pad a and pad b, more can form the fixing enhancing of structural electrical connection because of the effect of soldered ball.
In other embodiments, the perforation of weld pad is at edge, namely weld pad has a breach, and the stannum of welding electrically connects pad a and pad b fixing through described breach, and stannum can be deposited in perforation around, when after cooling, being formed and have the soldered ball more than penetration hole diameter, this ball structure can form the fixing enhancing of structural electrical connection, in the present embodiment, because the design of breach, it seems the sub function of �� staple that the stannum of welding plays.
The perforation of weld pad is whether initially formed, or in the process of welding, direct pressure-welding head is punched, and can reach the structure described in the present embodiment. Its surface contacted with scolding tin of described pressure-welding head can be plane or the surface with recess and protuberance, protuberance can be strip or latticed, perforation is not exclusively covered by described protuberance, guarantee that scolding tin can pass from perforation, when scolding tin pass perforation be deposited in perforation around time, recess is provided that the accommodating position of soldered ball. In other embodiments, flexible circuit board has a hole, location, can pass through hole, location when welding and be positioned accurately by the weld pad of pad a and pad b.
In above-described embodiment, flexible circuit board major part is fixed on the inner peripheral surface of fluorescent tube 1, it is be not only fixed on the inner peripheral surface of fluorescent tube 1 at two ends, the flexible circuit board not being fixed on fluorescent tube 1 inner peripheral surface forms a freedom portion, when assembling, one end of freedom portion and power solder can drive freedom portion to fluorescent tube internal contraction, the freedom portion of flexible circuit board can deform because of contraction, use the above-mentioned flexible circuit board with perforation weld pad, the pad a of side and power solder that flexible circuit board has light source is directed towards the same side, when the freedom portion of flexible circuit board deforms because of contraction, power supply is have a lateral pulling force by one end of flexible circuit board and power solder, the pad a of the side and power solder that have light source compared to flexible circuit board is directed towards the welding of not the same side, power supply is also had a downward pulling force by one end of flexible circuit board and power solder, use the above-mentioned flexible circuit board with perforation weld pad, form the fixing enhancing of structural electrical connection and there is effect more preferably.
If the two ends of flexible circuit board are fixed on the inner peripheral surface of fluorescent tube 1, then consider the end of flexible circuit board is provided with female plug 201, then the male plug 501 of lamp circuit module 5 is inserted female plug 201 and realizes electrical connection.
Wherein, such as Figure 17, flexible circuit board includes one layer of conductive layer 2a, and LED component 202 is located on conductive layer 2a, is connected with power sourced electric by conductive layer 2a. With reference to Figure 11, in the present embodiment, flexible circuit board comprises stacked conductive layer 2a and dielectric layer 2b, conductive layer 2a and is used for arranging LED component 202 on the surface opposing with dielectric layer 2b, and dielectric layer 2b is then adhered on the inner peripheral surface of fluorescent tube 1 by bonding agent 4 on the surface opposing with conductive layer 2a. Wherein, conductive layer 2a can be metal level, or is furnished with the bus plane of wire (such as copper cash).
In other embodiments, the outer surface of conductive layer 2a and dielectric layer 2b can be coated with a circuit protecting layer, and described circuit protecting layer can be a kind of ink material, has welding resistance and increases the function of reflection. Or, flexible circuit board can be a Rotating fields, is namely only made up of one layer of conductive layer 2a, then in the circuit protecting layer of one layer of above-mentioned ink material of Surface coating of conductive layer 2a. Whether one layer of conductive layer 2a structure or two-layer structure (one layer of conductive layer 2a and one dielectric layer 2b) can coupled circuit protective layers. Circuit protecting layer can also in the side surface configuration of flexible circuit board, for instance only arrange circuit protecting layer in the side with light source 202. It should be noted that, flexible circuit board is one layer of conductive coating structure 2a or is two-layer structure (one layer of conductive layer 2a and one dielectric layer 2b), substantially ratio general three layers flexible base board (pressing from both sides one dielectric layer in two layers of conductive layer) more pliability and flexibility, therefore, can arrange in pairs or groups (such as: non-straight lamp) with having special formed fluorescent tube 1, and flexible circuit board is close on fluorescent tube 1 tube wall. Additionally, flexible circuit board is close to tube wall for preferably to configure, and the number of plies of flexible circuit board is more few, then radiating effect is more good, and material cost is more low, more environmental protection, and pliable and tough effect also has an opportunity to promote.
Certainly, the flexible circuit board of the present invention is not limited in one layer or double layer circuit plate, in other embodiments, flexible circuit board includes plurality of conductive layers 2a and multilayer dielectric layer 2b, dielectric layer 2b and conductive layer 2a can sequentially interlock stacked and be located at the conductive layer 2a side opposing with LED component 202, LED component 202 is located at the most last layer of plurality of conductive layers 2a, is connected with power sourced electric by the most last layer of conductive layer 2a.
Further, fluorescent tube 1 inner peripheral surface or outer peripheral face are coated with adhesive film (not shown), for outwardly and inwardly isolating fluorescent tube 1 after fluorescent tube 1 breaks. Adhesive film is coated on the inner peripheral surface of fluorescent tube 1 by the present embodiment.
The constituent of adhesive film includes vinyl-terminated silicone fluid, containing hydrogen silicone oil, dimethylbenzene and calcium carbonate. Wherein the chemical formula of vinyl-terminated silicone fluid is: (C2H8OSi)n��C2H3, the chemical formula of containing hydrogen silicone oil is: C3H9OSi��(CH4OSi)n��C3H9Si��
It generates product is polydimethylsiloxane (elastomer silicone), and chemical formula is:
Wherein dimethylbenzene is auxiliary agents, and after adhesive film is coated in fluorescent tube 1 inner peripheral surface and solidifies, dimethylbenzene can vapor away, and its effect mainly regulates viscosity, and then regulates the thickness of adhesive film.
In the present embodiment, the thickness range of adhesive film is 100 ��m��140 ��m. If adhesive film thickness is less than 100 ��m, explosion-proof performance is inadequate, and during glass breaking, whole fluorescent tube can split, and then can reduce light transmittance more than 140 ��m, and increase material cost. If explosion-proof performance and light transmittance requirement are relatively loose, then the thickness range of adhesive film can also be relaxed to 10 ��m��800 ��m.
In the present embodiment, owing to scribbling adhesive film inside fluorescent tube, after glass lamp is broken, adhesive film can by fragment adhesion together, and the through hole that through fluorescent tube is inside and outside will not be formed, thus preventing user from touching the electrical body within fluorescent tube 1, to avoid electric shock accidents, the adhesive film simultaneously adopting said ratio also has the effect of diffusion light, printing opacity, improves whole lighting source Luminescence Uniformity and light transmittance.
It should be noted that owing to the lamp plate 2 in the present embodiment is flexible circuit board, therefore can also be not provided with adhesive film.
In order to improve lighting source light efficiency further, lighting source is also improved by the present embodiment from two aspects, is respectively directed to fluorescent tube and light source.
(1) improvement that fluorescent tube is made
With reference to Figure 18, except being close to the lamp plate 2 (or flexible circuit board) of fluorescent tube 1 in the fluorescent tube 1 of the present embodiment, also including diffusion layer 13, the light that LED component 202 produces passes fluorescent tube 1 by after diffusion layer 13.
The light that LED component 202 sends is played the effect of diffusion by diffusion layer 13, therefore, the layout of diffusion layer 13 can have various ways, as long as fluorescent tube 1 is passed after making light therethrough diffusion layer 13 again, such as: diffusion layer 13 can be coated or covered with on the inner peripheral surface of fluorescent tube 1, or it is coated or covered with the diffusion coating (not shown) on LED component 202 surface, or covers on the diffusion barrier sheet outside LED component 202 as an outer housing (or covering).
Such as Figure 18, diffusion layer 13 is diffusion barrier sheet, and covers on outside LED component 202, and does not contact with LED component 202. The general term of diffusion barrier sheet is optical diffusion sheet or optical diffusing plate, arrange in pairs or groups diffusion particle typically by the combination of one or more in PS polystyrene, PMMA polymethyl methacrylate, PET (polyethylene terephthalate), PC (Merlon), a kind of composite formed, diffusion can be there is when this composite of light therethrough, light uniformly area source can be revised and finally make to be distributed from the brightness uniformity of fluorescent tube with the effect reaching optics diffusion.
It addition, the embodiment of the present invention propose diffusion layer in combinations with in the aforementioned embodiment release can circuit, the flickering after power cut-off can be reduced further. Improve Consumer's Experience.
When diffusion layer 13 is diffusion coating, its composition can include at least one in calcium carbonate, calcium halophosphate activated by antimony andmanganese and aluminium oxide or its combination. when the diffusion coating utilizing the calcium carbonate suitable solution of collocation to be formed, will there is excellent diffusion and the effect of printing opacity (having an opportunity to reach more than 90%). additionally, through have creative work it have also been found that, lamp holder in conjunction with strengthening section glass sometimes can be defective in quality, a little ratio is had easily to come off, as long as and this diffusion coating is also coated onto on the outer surface of end 101 of fluorescent tube, the frictional force between lamp holder and fluorescent tube can be increased between diffusion coating and PUR 6, make frictional force between diffusion coating and PUR 6 more than the end face of the end 101 of fluorescent tube when being not coated with diffusion coating and the frictional force between PUR, therefore lamp holder 3 is through the frictional force between diffusion coating and PUR 6, the problem that lamp holder 3 comes off just can significantly solve.
In the present embodiment, when allotment, the constituent of diffusion coating includes calcium carbonate (such as CMS-5000, white powder), thickening agent (such as thickening agent DV-961, milky white liquid), and ceramics activated carbon (such as ceramic active carbon SW-C, colourless liquid). Wherein, the chemistry of thickening agent DV-961 is called colloidal silica denaturing acrylamide acid resin, is used for increasing stickiness when calcium carbonate is attached at glass lamp inner peripheral surface, and its component includes acrylic resin, silica gel and pure water; The component of ceramic active carbon SW-C includes succinate sulfonate sodium, isopropanol and pure water, and wherein the chemical formula of succinate sulfonate sodium is:
Specifically, when diffusion coating is with calcium carbonate for main material, collocation thickening agent, ceramic active carbon and deionized water, it is coated on after mixing on the inner peripheral surface of glass lamp, the average thickness of coating drops between 20��30 ��m, and last deionized water will vapor away, only remaining calcium carbonate, thickening agent and three kinds of materials of ceramic active carbon. Adopt the diffusion layer 13 that this material is formed, it is possible to there is the light transmittance of about 90%, it is however generally that, light transmittance range from about 85%��96%. It addition, this diffusion layer 13 is except having the effect of diffusion light, moreover it is possible to play the effect of electric isolution, so that when glass lamp breaks, reduce the risk that user gets an electric shock; Meanwhile, this diffusion layer 13 so that LED element 202 is when luminescence, can allow light produce diffusion, toward penetrating from all directions such that it is able to shine the rear of LED element 202, namely near the side of flexible circuit board, avoid occurring in the lamp vessel 1 dark space, the illumination comfort of room for promotion. Additionally, when selecting the diffusion coating of different materials composition, have alternatively possible embodiment, it is possible to adopt thickness of diffusion layer to range for 200 ��m��300 ��m, and light transmittance controls between 92%��94%, also has another kind of effect.
In other embodiments, diffusion coating can also calcium carbonate be main material, the reflecting material (such as strontium phosphate or barium sulfate) of arranging in pairs or groups a small amount of, thickening agent, ceramic active carbon and deionized water, it is coated on after mixing on the inner peripheral surface of glass lamp, the average thickness of coating drops between 20��30 ��m, and last deionized water will vapor away, only remaining calcium carbonate, reflecting material, thickening agent and four kinds of materials of ceramic active carbon. Owing to the purpose of diffusion layer is to allow light produce diffusion, diffusion phenomenon is at microcosmic, it it is the light reflection through granule, the grain diameter size of the reflecting material such as strontium phosphate or barium sulfate can much larger than the particle diameter of calcium carbonate, therefore, select in diffusion coating, add a small amount of reflecting material, can effectively increase the diffusion effect of light. Certainly, in other embodiments, it is also possible to select the main material of calcium halophosphate activated by antimony andmanganese or the micro-diffusion coating of aluminium oxide, then repeat no more.
Further, with continued reference to Figure 18, the inner peripheral surface of fluorescent tube 1 being additionally provided with reflectance coating 12, reflectance coating 12 is located to be had around the lamp plate 2 of LED component 202, and circumferentially takies the part inner peripheral surface of fluorescent tube 1. As shown in figure 12, reflectance coating 12 is circumferentially extending along fluorescent tube in lamp plate 2 both sides. The setting of reflectance coating 12 has the effect of two aspects, on the one hand, when when from the side, (in figure X-direction) sees fluorescent tube 1, stops with reflectance coating 12, will not be immediately seen LED component 202, thus reducing the visual discomfort that granular sensation causes; On the other hand, the light that LED component 202 sends is through the reflection of reflectance coating 12, it is possible to control the angle of divergence of fluorescent tube so that light irradiates more towards the direction being not coated with reflectance coating, make lighting source obtain identical radiation response with less power, improve energy saving.
Specifically, reflectance coating 12 is attached on the inner peripheral surface of fluorescent tube 1, and offers the perforate 12a corresponding with lamp plate 2 on reflectance coating 12, and the size of perforate 12a should be consistent with lamp plate 2 or slightly larger than lamp plate 2, for holding the lamp plate 2 with LED component 202. During assembling, now the lamp plate 2 (or flexible circuit board) with LED component 202 is arranged on the inner peripheral surface of fluorescent tube 1, reflectance coating 12 is sticked at fluorescent tube inner peripheral surface again, wherein the perforate 12a of reflectance coating 12 and lamp plate 2 one_to_one corresponding, outside lamp plate 2 is exposed to reflectance coating 12.
In the present embodiment, the reflectance of reflectance coating 12 is at least greater than 85%, and reflecting effect is better, when being typically in more than 90%, it is therefore desirable to reach more than 95%, to obtain more preferably reflecting effect. Reflectance coating 12 occupies the 30%��50% of whole fluorescent tube 1 circumference along the length that fluorescent tube 1 is circumferentially extending, say, that along the circumferential direction of fluorescent tube 1, the proportion between circumferential lengths and the girth of fluorescent tube 1 inner peripheral surface of reflectance coating 12 is 0.3��0.5. Spy gives explanation, and the present invention is only arranged on reflectance coating 12 medium position circumferentially for lamp plate 2, say, that lamp plate 2 both sides reflectance coating 12 has the area being substantially the same, as shown in figure 12. The material of reflectance coating can be PET, if plus the composition such as strontium phosphate or barium sulfate, reflecting effect is better, and thickness, between 140 ��m��350 ��m, is typically between 150 ��m��220 ��m, and effect is more preferably.
In other embodiments, reflectance coating 12 can also adopt other forms to arrange, such as, circumferential direction along fluorescent tube 1, reflectance coating 12 can be located at the one or both sides of lamp plate 2, namely reflectance coating 12 contacts with lamp plate 2 circumference one or both sides, and the ratio that its circumference one side occupies fluorescent tube 1 circumference is identical with the present embodiment, as Figure 19 illustrates the structure of reflectance coating 12 and lamp plate 2 one side contacts. Or, such as Figure 20, Figure 21, reflectance coating 12 can not offer perforate, directly reflectance coating 12 is sticked on the inner peripheral surface of fluorescent tube 1 during assembling, then being fixed on reflectance coating 12 by the lamp plate 2 with light source 202 again, reflectance coating 12 can also be circumferentially extending along fluorescent tube respectively in the both sides of lamp plate 2 herein, such as Figure 20, or only circumferentially extending along fluorescent tube in the side of lamp plate 2, such as Figure 21.
In other embodiments, it is possible to reflectance coating 12 is only set, it is not provided with diffusion layer 13, such as Figure 20, Figure 21 and Figure 22.
In other embodiments, reflectance coating 12 and lamp plate 2 one side contacts, reference Figure 22. Figure 22 illustrates reflectance coating 12 and lamp plate 2 one side contacts, and is provided with diffusion layer 13 simultaneously. Figure 23 illustrates that the lamp plate 2 of carrying LED component 202 is arranged on reflectance coating 12, and the lamp plate 2 of carrying LED component 202 is positioned at the side of reflectance coating 12, is not provided with diffusion layer 13.
In other embodiments, the width of flexible circuit board can be widened, the position widened, it is possible to plays the effect of reflectance coating 12 function. It is preferred that flexible circuit board is 0.3��0.5 along the proportion between circumferentially extending length and the girth of described fluorescent tube 2 inner peripheral surface of fluorescent tube 2. As in the prior embodiments; a circuit protecting layer can be coated with outside flexible circuit board; circuit protecting layer can be a kind of ink material; there is the function increasing reflection; the flexible circuit board widened is with light source for starting point to circumferentially extending, and the light of light source can make light more concentrate by the position widened.
In the embodiment of aforesaid Figure 12-14, on the inner peripheral surface of glass tubing, can all coat diffusion coating, or partly coat diffusion coating (having reflectance coating 12 part not to be coated with), but no matter it is any mode, diffusion coating to be preferably both coated onto on the outer surface of end of fluorescent tube 1, so that the gluing between lamp holder 3 and fluorescent tube 1 is more firm.
(2) improvement that light source is made
With reference to Figure 23, LED component 202 can improve the support 202b being to include having groove 202a further, and is located at the LED grain 18 in groove 202a. Being filled with fluorescent material in groove 202a, fluorescent material covers LED grain 18, to play the effect of Color Conversion. Spy gives explanation, the square shape of the length of tradition LED grain (or chip) 18 and the ratio about slightly 1:1 of width. And the proportion of the length of the LED grain adopted in the present invention (or chip) 18 and width can be 2:1��10:1, the scope adopted in above-described embodiment is namely with 2.5:1��5:1 for preferably explaining, optimum range is 3:1��4.5:1, thus, being arranged along the length direction of fluorescent tube 1 by the length direction of LED grain (or chip) 18, what improve the average current density of LED grain (or chip) 18 and fluorescent tube 1 entirety goes out the problems such as light light shape.
In a piece fluorescent tube 1, LED component 202 has multiple, and multiple LED component 202 are arranged into string or multiple row, and each column LED component 202 is arranged along axial (Y-direction) of fluorescent tube 1. Groove 202a in each support 202b can be one or more.
Wherein, the support 202b of at least one LED component 202 has the first side wall 15 along the arrangement of fluorescent tube length direction and the second sidewall 16 along the arrangement of fluorescent tube width, and the first side wall 15 is lower than the second sidewall 16. Or, the support 202b of at least one LED component 202 has the second sidewall 16 extended along fluorescent tube length direction, and along the first side wall 15 that fluorescent tube width extends, the first side wall 15 is lower than the second sidewall 16. The first side wall herein, the second sidewall refer to surround the sidewall of groove 202a.
In the present embodiment, each support 202b has a groove 202a, and correspondence, each support 202b has 15, two the second sidewalls 16 of two the first side walls.
Wherein, two the first side walls 15 are arranged along fluorescent tube 1 length direction (Y-direction), and two the second sidewalls 16 are arranged along fluorescent tube 1 width (X-direction). The first side wall 15 extends along the width (X-direction) of fluorescent tube 1, and the second sidewall 16 extends along the length direction (Y-direction) of fluorescent tube 1, the first side wall 15 and the second sidewall 16 surround groove 202a. In other embodiments, in string light source, it is allowed to wherein have the sidewall of the support of one or more light source to adopt other arrangement or extension mode.
When user is from the side of fluorescent tube, for instance when observing fluorescent tube in X direction, the second sidewall 16 can stop that the sight line of user is immediately seen LED component 202, to reduce the discomfort of granule. Wherein, the first side wall 15 " width along fluorescent tube 1 " extends, as long as it is essentially identical with the width of fluorescent tube 1 to meet extension trend, do not require strict parallel with the width of fluorescent tube 1, such as, the first side wall 15 can have a little differential seat angle with the width of fluorescent tube 1, or, the first side wall 15 can also be that fold-line-shaped, arc, waveform etc. are variously-shaped; Second sidewall 16 " length direction along fluorescent tube 1 " extends, as long as it is essentially identical with the length direction of fluorescent tube 1 to meet extension trend, do not require strict parallel with the length direction of fluorescent tube 1, such as, second sidewall 16 can have a little differential seat angle with the length direction of fluorescent tube 1, or, the second sidewall 16 can also be that fold-line-shaped, arc, waveform etc. are variously-shaped.
In the present embodiment, the first side wall 15 is lower than the second sidewall 16, can so that light can easily be crossed support 202b and exhale, through the line space design that density is moderate, the discomfort of granule can not be produced in the Y direction, in other embodiments, if the first side wall is not less than the second sidewall, then between each column LED component 202 will arrange tightr, could reduce granular sensation, raising usefulness.
Wherein, the inner surface 15a of the first side wall 15 is domatic, and relative to the form that inner surface 15a is set perpendicularly to diapire, domatic setting makes light more easily pass domatic exhaling. Domatic can include plane or cambered surface, the present embodiment adopt plane, and the gradient of this plane is between 30 �㡫60 ��. It is to say, the angular range between the diapire of plane and groove 202a is between 120 �㡫150 ��.
In other embodiments, the gradient of plane can also between 15 �㡫75 ��, say, that the angular range between the diapire of plane and groove 202a is between 105 �㡫165 ��. Or, domatic can be the coalition of plane and cambered surface.
In other embodiments, if LED component 202 is multiple row, and arrange along the axial direction (Y-direction) of fluorescent tube 1, the support 202b only wanting outermost two row LED component 202 (i.e. two row LED component 202 of adjacent lamp tube tube wall) has two the first side walls 15 arranged along fluorescent tube 1 length direction (Y-direction) and two the second sidewalls 16 arranged along fluorescent tube 1 width (X-direction), that is, the support 202b of outermost two row LED component 202 has the first side wall 15 that the width (X-direction) along fluorescent tube 1 extends, and along the second sidewall 16 that the length direction (Y-direction) of fluorescent tube 1 extends, the support 202b orientation of other row LED component 202 between this two row LED component 202 does not then limit, such as, the support 202b of middle column (the 3rd row) LED component 202, each support 202b can have two the first side walls 15 arranged along fluorescent tube 1 length direction (Y-direction) and two the second sidewalls 16 arranged along fluorescent tube 1 width (X-direction), or each support 202b can have two the first side walls 15 arranged along fluorescent tube 1 width (X-direction) and two the second sidewalls 16 arranged along fluorescent tube 1 length direction (Y-direction), or be staggered etc., as long as when the user side from fluorescent tube, such as, when observing fluorescent tube in X direction, second sidewall 16 of outermost two row LED component 202 medium-height trestle 202b can stop that the sight line of user is immediately seen LED component 202, the discomfort of granule can be reduced. identical with the present embodiment, for outermost two row light sources, it is allowed to wherein there is the sidewall of the support of one or more light source to adopt other arrangement or extension mode.
As can be seen here, when multiple LED component 202 are arranged into the string along fluorescent tube length direction, in the support 202b of multiple LED component 202, it is positioned at all second sidewalls 16 of the same side on same straight line along fluorescent tube width, namely the second sidewall 16 of homonymy forms the structure being similar to a face wall, and the sight line to stop user is immediately seen LED component 202.
When multiple LED component 202 are arranged into the multiple row along fluorescent tube length direction, multiple row LED component 202 is distributed along the width of fluorescent tube, and for being located along the outermost two row light sources of fluorescent tube width, in the support 202b of multiple LED component 202 of each column, it is positioned at all second sidewalls 16 of the same side on same straight line along fluorescent tube width. This is because: when user observes fluorescent tube in the width direction from the side, as long as second sidewall 16 of outermost two row LED component 202 medium-height trestle 202b can stop that user's sight line is immediately seen LED component 202, then just can reduce the purpose of the discomfort of granule. And for middle string or several row LED component 202, the arrangement of its sidewall, extension mode are not required, it is possible to identical with outermost two row LED component 202, it would however also be possible to employ other arrangement modes.
Need point out be, in other embodiments, for same LED, in the feature such as " fluorescent tube has strengthening section structure ", " lamp plate employing flexible circuit board ", " fluorescent tube inner peripheral surface scribbles adhesive film ", " fluorescent tube inner peripheral surface scribbles diffusion layer ", " Covers has diffusion barrier sheet ", " tube inner wall scribbles reflecting layer ", " lamp holder is the lamp holder including heat-conducting part ", " asymmetric lamp holder is the lamp holder including magnetic conductive metal piece ", " light source has support ", " lamp circuit module ", it is possible to only include one or more.
Have in strengthening section structure at fluorescent tube, described fluorescent tube includes main body and lays respectively at the end at described main body two ends, described end is respectively sheathed on lamp holder, the external diameter of at least one described end is less than the external diameter of described main body, and corresponding described external diameter is less than the lamp holder of described body outer diameter end, its external diameter is equal with the external diameter of described main body.
Adopt in flexible circuit board at lamp plate, be connected by wire routing between described flexible circuit board with the outfan of described power supply or weld between described flexible circuit board and the outfan of described power supply. Additionally, described flexible circuit board includes the storehouse of a dielectric layer and at least one conductive layer.
Scribbling in diffusion layer at fluorescent tube inner peripheral surface, the constituent of described diffusion coating includes at least one in calcium carbonate, calcium halophosphate activated by antimony andmanganese and aluminium oxide, and thickening agent and ceramics activated carbon, and thickening agent and ceramics activated carbon. Additionally, described diffusion layer also can be diffusion barrier sheet and cover on outside light source.
Scribbling in reflecting layer at tube inner wall, described light source may be disposed on reflecting layer, is arranged at the side in the perforate of described reflecting layer or in described reflecting layer.
In burner design, in burner design, lamp holder can include insulation tube and heat-conducting part, and wherein PUR can be filled a part for accommodation space or fill full accommodation space. Or, lamp holder includes insulation tube and magnetic conductive metal part, and wherein, magnetic conductive metal part can be circular or non-circular, it is possible to reduces the contact area with insulation tube by arranging emptying aperture structure or scoring structure. It addition, in insulation tube can also by arranging support portion, protuberance strengthens the support to magnetic conductive metal part and reduces the contact area of magnetic conductive metal part and insulation tube. The length of side lamp holder is about the half of opposite side lamp holder length, and (its cripetura part is extended by fluorescent tube and compensates, ensure that the entire length of LED meets regulation, because the length of fluorescent tube has prolongation, it is attached to the interval between the LED component on the lamp plate of tube inner wall can strengthen accordingly, so can improve radiating efficiency, extend the life-span of LED component).
In LED component designs, described LED component includes the support with groove tube, and is located at the LED grain in described groove; Described support has the first side wall along the arrangement of described fluorescent tube length direction and the second sidewall along the arrangement of described fluorescent tube width, and described the first side wall is lower than described second sidewall.
That is, it is possible to features described above is made arbitrary permutation and combination, and is used for the improvement of illuminator.
Additionally, need point out be, in other embodiments, for LED, ballast circuit for detecting be located at LED interiorly or exteriorly, " connected mode of LED component ", " form of compatible circuit " and LED lamp structure the change of the various features such as change, having no effect on the present invention, the present invention still can reach above-mentioned detecting LED drive power and the accommodation function with normal operating. In circuit " release can circuit ", " filter circuit ", " filament artificial circuit ", " rectification unit " and etc. in feature, all can arbitrarily omit one or all and affect the detecting LED drive power of the present invention and the function of accommodation. Etc. in feature, it is possible to only include one or more.
As it has been described above, the present invention complies fully with patent three important document: the practicality in novelty, creativeness and industry. The present invention discloses with preferred embodiment hereinbefore, and so being familiar with the technology person it should be understood that this embodiment is only for describing the present invention, and is not construed as restriction the scope of the present invention. It should be noted that such as equivalent with this embodiment change and displacement, all should be set to be covered by scope of the invention. Therefore, protection scope of the present invention ought be as the criterion with the scope that appending claims defines.
Although present disclosure is as above, but the present invention is not limited to this. Any those skilled in the art, without departing from the spirit and scope of the present invention, all can make various changes or modifications, and therefore protection scope of the present invention should be as the criterion with claim limited range.
Claims (10)
1. a light-emitting diode lamp tube, it is characterised in that including:
Fluorescent tube, for the peripheral framework of elongate;
Two lamp holders, it is socketed on the two ends of described fluorescent tube respectively, said two lamp holder is respectively provided with the conductive pin connecting external power source, to be correspondingly formed the first pin, the second pin and the 3rd pin, the 4th pin, wherein said external power source provides AC signal to flow through between at least one of at least one and described 3rd pin and described 4th pin of described first pin and described second pin;
Circuit board, is pasted on the inner peripheral surface of described fluorescent tube and has at least one weld pad and at least one of which conductive layer of being electrically connected to each other; And
Light-emitting diode (LED) module, including light emitting diode and lamp circuit module, described light emitting diode is located on described circuit board, described lamp circuit module is located in said two lamp holder and is electrically connected described conductive pin, wherein said light emitting diode includes multiple series, parallel or series-parallel light emitting diode, it is electrically connected by the described at least one of which conductive layer of described circuit board, described lamp circuit module, including having at least one weld pad, and with described at least one pad solder of described circuit board;
Described lamp circuit module includes:
Rectification unit, is electrically connected described first pin and described second pin, is suitable to described AC signal is rectified into DC signal, in order to provide direct current power extremely described light emitting diode;
Compatible circuit, it is electrically connected described 3rd pin and described 4th pin, comprise the first unidirectional current path and the second unidirectional current path, described first unidirectional current path is electrically connected described light-emitting diode (LED) module, described second unidirectional current path is electrically connected described light-emitting diode (LED) module, wherein said first unidirectional current path allow electric current by described light-emitting diode (LED) module flow to described 3rd pin and described four pins one of them, described second unidirectional current path allows electric current, and by described 3rd pin and described four pins, one of them flows to described light-emitting diode (LED) module, and
Auxiliary power module, is electrically connected to described light emitting diode, and when described AC signal stops providing, described auxiliary power module provides electric current to flow through described light emitting diode.
2. light-emitting diode lamp tube according to claim 1, it is characterised in that described lamp holder is provided with air-vent.
3. light-emitting diode lamp tube according to claim 1, it is characterised in that described fluorescent tube includes main body and the end at described main body two ends, and the external diameter of at least one end is less than the external diameter of described main body.
4. light-emitting diode lamp tube according to claim 3, it is characterised in that the difference�ܡ� 1mm of said two lamp holder external diameter and described body outer diameter.
5. light-emitting diode lamp tube according to claim 1, it is characterised in that one of them length dimension of said two lamp holder is the 30%��80% of another length dimension.
6. light-emitting diode lamp tube according to claim 1, it is characterised in that described light emitting diode includes the LED grain that proportion is 2:1��10:1 of length and width.
7. an emergency light device, it is characterised in that including:
Fluorescent tube, for the peripheral framework of elongate;
Two lamp holders, it is socketed on the two ends of described fluorescent tube respectively, said two lamp holder is respectively provided with the conductive pin connecting external power source, to be correspondingly formed the first pin, the second pin and the 3rd pin, the 4th pin, wherein said external power source provides AC signal to flow through between described first pin and described second pin;
Circuit board, is pasted on the inner peripheral surface of described fluorescent tube and has at least one weld pad and at least one of which conductive layer of being electrically connected to each other;
Light emitting diode, is located on described circuit board and includes multiple series, parallel or series-parallel light emitting diode, is electrically connected by the described at least one of which conductive layer of described circuit board; And
Lamp circuit module, it is located in said two lamp holder and is electrically connected described conductive pin, there is at least one weld pad, and with described at least one pad solder of described circuit board, described lamp circuit module includes rectification unit and auxiliary power module, described rectification unit is electrically connected described first pin and described second pin, be suitable to described AC signal is rectified into DC signal, in order to provide direct current power extremely described light emitting diode, described auxiliary power module is electrically connected described 3rd pin and described 4th pin, when described AC signal stops providing, described auxiliary power module provides electric current to flow through described light emitting diode by described 3rd pin and described 4th pin.
8. emergency light device according to claim 7, it is characterised in that described lamp holder is provided with air-vent.
9. emergency light device according to claim 7, it is characterised in that described fluorescent tube includes main body and the end at described main body two ends, and the external diameter of at least one end is less than the external diameter of described main body.
10. emergency light device according to claim 7, it is characterised in that described light emitting diode includes the LED grain that proportion is 2:1��10:1 of length and width.
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| CN2015103783224 | 2015-06-29 | ||
| CN201510378322 | 2015-06-29 |
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| CN105650500A true CN105650500A (en) | 2016-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510422115.4A Pending CN106211497A (en) | 2014-09-28 | 2015-07-16 | Light-emitting diode lamp tube |
| CN201520518177.0U Active CN205124041U (en) | 2014-09-28 | 2015-07-16 | Light -emitting diode lamp tube |
| CN201510422742.8A Pending CN105650500A (en) | 2014-09-28 | 2015-07-17 | Light emitting diode lamp tube and emergent illumination lamp device |
| CN201520523256.0U Active CN205619024U (en) | 2014-09-28 | 2015-07-17 | Emitting diode fluorescent tube and emergency lighting lamp device |
| CN201520615527.5U Active CN205606255U (en) | 2014-09-28 | 2015-08-14 | Light -emitting diode lamp tube |
| CN202311658917.6A Pending CN117881044A (en) | 2014-09-28 | 2015-08-14 | LED lamp tube and emergency lighting lamp device |
| CN201510501385.4A Active CN105465642B (en) | 2014-09-28 | 2015-08-14 | LED lamp tube and emergency lighting lamp device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510422115.4A Pending CN106211497A (en) | 2014-09-28 | 2015-07-16 | Light-emitting diode lamp tube |
| CN201520518177.0U Active CN205124041U (en) | 2014-09-28 | 2015-07-16 | Light -emitting diode lamp tube |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520523256.0U Active CN205619024U (en) | 2014-09-28 | 2015-07-17 | Emitting diode fluorescent tube and emergency lighting lamp device |
| CN201520615527.5U Active CN205606255U (en) | 2014-09-28 | 2015-08-14 | Light -emitting diode lamp tube |
| CN202311658917.6A Pending CN117881044A (en) | 2014-09-28 | 2015-08-14 | LED lamp tube and emergency lighting lamp device |
| CN201510501385.4A Active CN105465642B (en) | 2014-09-28 | 2015-08-14 | LED lamp tube and emergency lighting lamp device |
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| CN (7) | CN106211497A (en) |
| DE (3) | DE202015006667U1 (en) |
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| CN106870974A (en) * | 2017-03-01 | 2017-06-20 | 深圳驰迅科技有限公司 | A kind of Multi-function compatible type fluorescent tube |
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| EP3297409B1 (en) * | 2016-09-16 | 2022-10-12 | OSRAM GmbH | A method of connecting lighting modules and corresponding device |
| DE102017127821A1 (en) * | 2017-11-24 | 2019-05-29 | Endress+Hauser Conducta Gmbh+Co. Kg | liquid detector |
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| CN114941810A (en) * | 2022-04-29 | 2022-08-26 | 厦门普为光电科技有限公司 | Light-emitting diode lamp tube with flexible plate connecting structure and manufacturing method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105465642A (en) | 2016-04-06 |
| JP3201364U (en) | 2015-12-03 |
| DE202015006667U1 (en) | 2016-02-23 |
| DE202015006645U1 (en) | 2016-02-23 |
| CN205606255U (en) | 2016-09-28 |
| DE202015006668U1 (en) | 2016-02-23 |
| JP3201366U (en) | 2015-12-03 |
| CN205124041U (en) | 2016-03-30 |
| CN106211497A (en) | 2016-12-07 |
| CN205619024U (en) | 2016-10-05 |
| CN105465642B (en) | 2023-12-26 |
| CN117881044A (en) | 2024-04-12 |
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