CN105465641A

CN105465641A - Straight-tube lighting device

Info

Publication number: CN105465641A
Application number: CN201510497296.7A
Authority: CN
Inventors: 孙骁; 刘新通
Original assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Current assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date: 2014-09-28
Filing date: 2015-08-13
Publication date: 2016-04-06
Also published as: CN205244929U

Abstract

The invention discloses a straight-tube lighting device comprising a lamp tube, two lamp caps, a substrate, a light emitting diode module and a power module, wherein two ends of the lamp tube are respectively sleeved by the two lamp caps; the substrate is located in the lamp tube and comprises at least one conducting layer and at least one dielectric layer; the light emitting diode module comprises at least one light emitting diode arranged on the substrate; the power module comprises a rectifying unit, a first driving circuit, a second driving circuit and a switcher; the first driving circuit is electrically connected with the rectifying unit and is suitable for providing a first signal reaching the light emitting diode module through a first current path; the second driving circuit is electrically connected with the rectifying unit and is suitable for providing a second signal reaching the light emitting diode module through a second current path; the switcher is selectively switched to allow a current to pass along the first current path and bypass the second driving circuit and allow the current pass along the second current path; and the dielectric layer and the light emitting diode are respectively arranged to be in physical contact with the conducting layer.

Description

Straight tube lighting device

This application claims the priority in first Chinese patent application of following 14 submission Patent Office of the People's Republic of China, its full content combines in this application by reference.Applying date of described 14 Chinese patent application, application number and denomination of invention are as follows respectively:

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201410507660.9, denomination of invention is " a kind of LED daylight lamp " on September 28th, 1.2014;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201410508899.8, denomination of invention is " a kind of welding powder curing " on September 28th, 2.2014;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201410618361.2, denomination of invention is " a kind of flip-chip LED daylight lamp " on November 6th, 3.2014;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201410623355.6, denomination of invention is " a kind of LED daylight lamp " on November 6th, 4.2014;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201410734425.5, denomination of invention is " LED daylight lamp " on December 5th, 5.2014;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510075925.7, denomination of invention is " LED daylight lamp " on February 12nd, 6.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510104823.3, denomination of invention is " light-emitting diode lamp tube and ballast circuit for detecting " on March 10th, 7.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510133659.9, denomination of invention is " a kind of U-shaped LED daylight lamp " on March 25th, 8.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510134586.5, denomination of invention is " a kind of light-emitting diode lamp tube " on March 26th, 9.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510136796.8, denomination of invention is " manufacture method of LED daylight lamp " on March 27th, 10.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510173861.4, denomination of invention is " illumination light source and lighting device thereof " on April 14th, 11.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510193980.6, denomination of invention is " illumination light source and lighting device " on April 22nd, 12.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510259151.3, denomination of invention is " LED " on May 19th, 13.2015;

Submit the Chinese patent application that Patent Office of the People's Republic of China, application number are 201510378322.4, denomination of invention is " a kind of LED daylight lamp " on June 29th, 14.2015.

Technical field

The present invention about lighting device, especially about a kind of straight tube lighting device.

Background technology

In existing lighting device, what major part adopted remains fluorescent tube as luminescence unit.Relative to fluorescent tube, light emitting diode (Light-EmittingDiode, LED), owing to having the advantages such as high brightness, power saving and environmental protection, is little by little applied in various lighting device.

The mode that light emitting diode replaces existing lighting device replacement fluorescent tube mainly comprises two kinds.One is the compatible type light-emitting diode lamp tube of ballast, namely on the basis of circuit not changing original lighting device, directly replaces traditional fluorescent tube with light-emitting diode lamp tube.Another is ballast bypass type light-emitting diode lamp tube, and circuit saves traditional ballast, and directly civil power is received light-emitting diode lamp tube.The latter is applicable to newly-decorated environment, adopts drive circuit and the light-emitting diode lamp tube of new lighting device.

Now light-emitting diode lamp tube is not commercially ballast compatible type, is exactly ballast bypass type.For terminal use, there is the problem that light emitting diode illuminating apparatus cannot be matched appropriate circuitry, because this increasing the inconvenience using and install.

Summary of the invention

The problem that the present invention solves is the installation how facilitating lighting device.

For solving the problem, the invention provides a kind of straight tube lighting device, comprising:

One fluorescent tube is the peripheral framework of elongate;

Two lamp holders, be socketed on the two ends of described fluorescent tube respectively, described two lamp holders are respectively equipped with the conductive pin for connecting external power source, form the first pin, the second pin and the 3rd pin, the 4th pin with correspondence, allow described external power source to provide AC signal at least one of them and described 3rd pin of described first pin and described second pin and at least flowing through between one of them of described 4th pin;

One substrate, is positioned at this fluorescent tube, and comprises at least one conductive layer and at least one dielectric layer;

One light-emitting diode (LED) module, comprises at least one light emitting diode and arranges on the substrate; And

One power module, comprises a rectification unit, one first drive circuit, one second drive circuit and a switch; Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal; Described first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides one first signal to arrive described light-emitting diode (LED) module through one first current path; Described second drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a secondary signal to arrive described light-emitting diode (LED) module through one second current path; And described switch selectively switch on allow electric current along described first current path by and this second drive circuit of bypass, and allow between electric current passes through along described second current path;

Wherein this at least one light emitting diode is suitable for being electrically connected through described at least one conductive layer and described first drive circuit, described second drive circuit, described at least one light emitting diode is in order to luminous according to described first signal or described secondary signal, and this dielectric layer and this light emitting diode are set up respectively and have physical contact with this conductive layer.

Optionally, this substrate and the electric connection system of this first drive circuit, this second drive circuit are through welding.

Optionally, those at least one light emitting diodes can be arranged on the both sides up and down of this substrate.

Optionally, this substrate comprises single conductive layer and single dielectric layer.

Optionally, this switch system receives this first signal, and switches on and be electrically connected between an input of this second drive circuit and this light-emitting diode (LED) module of electrically connect, and this light emitting diode is coupled to an output of this second drive circuit.

Optionally, this switch is coupled to this light emitting diode, and switches on an output of this second drive circuit of electric connection and be electrically connected between this first drive circuit, and this second drive circuit is coupled to this first drive circuit.

Optionally, this second drive circuit comprises a diode, a transistor switch and an Inductive component; This Inductive component is connected with this transistor switch, and the anode of this diode is electrically connected the tie point of this transistor switch and this Inductive component, and the negative electrode of this diode is as an output of this second drive circuit.

Optionally, this second drive circuit comprises a transistor switch, a switch and an Inductive component; This transistor switch is connected with this switch, and one end of this Inductive component is electrically connected the tie point of this transistor switch and this switch, and the other end of this Inductive component is as an output of this second drive circuit.

Optionally, this first drive circuit comprises a wave filter, and the signal after this wave filter system filtering one rectification is to produce this first signal.

Optionally, this first drive circuit comprises a capacitor in order to filtering, or this light emitting diode is in parallel with a capacitor.

For solving the problem, present invention also offers another kind of straight tube lighting device, comprising:

One fluorescent tube is the peripheral framework of elongate;

One light-emitting diode (LED) module, comprises at least one light emitting diode;

One power module, comprises a rectification unit, one first drive circuit, one second drive circuit, a switch and a circuit substrate; Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal; Described first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides one first signal to arrive described light-emitting diode (LED) module through one first current path; Described second drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a secondary signal to arrive described light-emitting diode (LED) module through one second current path; Described switch selectively switch on allow electric current along described first current path by and this second drive circuit of bypass, and allow between electric current passes through along described second current path; And this circuit substrate is in order to carry this first drive circuit and this second drive circuit at least one, and at one end have one first pad, this first pad and this first drive circuit or this second drive circuit are electrically connected; And

One flexible base plate, be positioned at this fluorescent tube, wherein this flexible base plate at one end have one second pad with this first pad solder, this second pad has at least two weld pads, and this second pad welds with at least one perforation place in those weld pads of this first pad, and this flexible base plate comprises at least one conductive layer and at least one dielectric layer;

Wherein this at least one light emitting diode to be arranged on described flexible base plate and to be suitable for being electrically connected through described second pad, the first pad and at least one conductive layer and described first drive circuit or described second drive circuit, described at least one light emitting diode is in order to luminous according to described first signal or described secondary signal, and this dielectric layer and this light emitting diode are set up respectively and have physical contact with this conductive layer.

Optionally, this perforation is the breach at those weld pads wherein edge of a weld pad.

Optionally, this flexible base plate comprises single conductive layer and single dielectric layer.

For solving the problem, the invention provides another straight tube lighting device, comprising:

One fluorescent tube is the peripheral framework of elongate;

Two lamp holders, are socketed on the two ends of described fluorescent tube respectively, described two lamp holders are respectively equipped with the conductive pin for connecting external power source, form the first pin, the second pin and the 3rd pin, the 4th pin with correspondence;

One light-emitting diode (LED) module, comprising at least one light emitting diode has been luminescence;

One power module, comprises a rectification unit, one first drive circuit, one second drive circuit, support both-end power-on circuit and a switch; Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal; Described first drive circuit is electrically connected described rectification unit, and is suitable for receiving described DC signal; Described second drive circuit is coupled to described first drive circuit; Described support both-end power-on circuit is coupled to the 3rd pin and the 4th pin, provides AC signal to flow through between this first pin or this second pin and the 3rd pin or the 4th pin to allow described external power source;

This straight tube lighting device also comprises:

One flexible base plate, be positioned at this fluorescent tube, be electrically connected with this second drive circuit, this support both-end power-on circuit, and comprise a conductive layer, a dielectric layer and a protective layer, wherein this dielectric layer and this light emitting diode are set up and this conductive layer physical contact respectively, and this protective layer is also set up and this conductive layer physical contact;

Wherein this switch is coupled to this light emitting diode, and be suitable for switching on this second drive circuit of electric connection and being electrically connected between this support both-end power-on circuit, allow electric current when wherein this switch is electrically connected this support both-end power-on circuit along one first current path through this first drive circuit, this light-emitting diode (LED) module and this support both-end power-on circuit, and allow electric current along one second current path through this first drive circuit, this second drive circuit and this light-emitting diode (LED) module when this switch is electrically connected this second drive circuit.

Optionally, the electric connection system of this flexible base plate and this second drive circuit and this support both-end power-on circuit is through welding at least one pad.

Optionally, this support both-end power-on circuit comprise one first diode, one second diode, two capacitors and; One negative electrode of this first diode is electrically connected this light emitting diode, and a negative electrode of its anode and this second diode is electrically connected and couples with one end of this two capacitor respectively; The other end of this two capacitor is electrically connected the 3rd pin and the 4th pin respectively, has been to prevent this light-emitting diode (LED) module to meet accident short circuit; And when this switch is electrically connected this support both-end power-on circuit, an anode of this second diode is electrically connected this switch.

Optionally, this second drive circuit comprises a diode, a transistor switch and an Inductive component; This diode is connected with this transistor switch, and one end of this Inductive component is electrically connected the tie point of this diode and this transistor switch, and this switch is electrically connected the other end of this Inductive component when this switch is electrically connected this second drive circuit.

Compared with prior art, technical scheme of the present invention has the following advantages:

Realizing by described switch the second current path that the first current path of being formed by described first drive circuit or described second drive circuit formed is that described light-emitting diode (LED) module is powered, thus can when multiple different input power, the circuit of coupling is switched to by commutation circuit, light-emitting diode lamp tube all can be worked in normal operation luminescence, solve the problem that described straight tube lighting device is installed in user's inconvenience.

Accompanying drawing explanation

Fig. 1 is the stereogram of the LED that can be used for the embodiment of the present invention;

Fig. 2 is the three-dimensional exploded view of the LED that can be used for the embodiment of the present invention;

Fig. 3 is the end construction of fluorescent tube in the LED that can be used for the embodiment of the present invention;

Fig. 4 is the structure one of lamp holder in the LED that can be used for the embodiment of the present invention: the structure of lamp holder outside;

Fig. 5 is the structure two of lamp holder in the LED that can be used for the embodiment of the present invention: the structure of lamp holder inside;

Fig. 6 is the structure of power supply in the LED that can be used for the embodiment of the present invention;

Fig. 7 is the structure of the link position of lamp holder and fluorescent tube in the LED that can be used for the embodiment of the present invention;

The schematic diagram that Fig. 8 is heating and curing through induction coil for can be used for all-plastic lamp holder in another embodiment of the present invention (inside having magnetic conductive metal part and PUR) and fluorescent tube;

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 be embodiment of the present invention insulation tube inner peripheral surface on there is the three-dimensional structure diagram of a support portion and a protuberance;

Figure 11 be the insulation tube of Figure 10 inner peripheral surface on there is a support portion and a protuberance, along the cross sectional side view of hatching line X-X;

Figure 12 is the schematic diagram that embodiment of the present invention magnetic conductive metal part has at least one emptying aperture structure;

Figure 13 is the schematic diagram that embodiment of the present invention magnetic conductive metal part has at least one scoring structure structure;

Figure 14 is after the insulation tube of Figure 10 and fluorescent tube combine, along the sectional view of fluorescent tube axial direction;

Figure 15 is embodiment of the present invention magnetic conductive metal part is a non-circular loops composition, along the sectional view of fluorescent tube axial direction;

Figure 16 is that in embodiment of the present invention LED, flexible substrate is the structure that lamp plate gets over strengthening section place and power output end and is welded to connect;

Figure 17 is the Rotating fields of double-deck flexible base plate in embodiment of the present invention LED;

Figure 18 is fluorescent tube sectional view in axial direction in embodiment of the present invention LED;

Figure 19 is embodiment of the present invention LED lamp reflectance coating and lamp plate one side contacts sectional view in axial direction;

Figure 20 is fluorescent tube sectional view in axial direction in a variation of Figure 18;

Figure 21 is another variation tool reflectance coating of embodiment of the present invention LED and lamp plate one side contacts sectional view in axial direction;

Figure 22 is fluorescent tube sectional view in axial direction in another variation of Figure 18;

Figure 23 is the three-dimensional structure diagram of the light source medium-height trestle of embodiment of the present invention lighting source;

Figure 24 is the circuit diagram of the LED lamp tube can share with the present invention.

Figure 25 is the electrical block diagram of a kind of straight tube lighting device in the embodiment of the present invention;

Figure 26 is the electrical block diagram in the embodiment of the present invention when described switch 635 is connected to K1 point;

Figure 27 is the electrical block diagram in the embodiment of the present invention when described switch 635 is connected to K2 point;

Figure 28 A-28B is respectively in the embodiment of the present invention electrical block diagram of a kind of straight tube lighting device comprising booster circuit;

Figure 29 A-29B is respectively in the embodiment of the present invention electrical block diagram of a kind of straight tube lighting device comprising reduction voltage circuit;

Figure 30 is the circuit diagram that in the embodiment of the present invention, a straight tube lighting device comprises a voltage boosting-reducing circuit;

Figure 31 A-31D is the circuit diagram of the support both-end power-on circuit 140 that can share with the present invention;

Figure 32 A-32C is the connecting circuit schematic diagram of LED component in the light-emitting diode (LED) module 630 of the embodiment of the present invention;

Figure 33 A-33C is the trace-diagram of the LED component of corresponding diagram 32A-32C circuit diagram in the embodiment of the present invention.

Detailed description of the invention

The present inventor, through creative work, on the basis of glass lamp, proposes a kind of straight tube lighting device, to solve the problem mentioned in background technology.

LED lamp tube in described straight tube lighting device is as known thermionic-cathode tube or cold-cathode tube, there is the peripheral framework (i.e. fluorescent tube) of the elongate of a transparent or astigmatism effect, such as: cylinder, size (length, radius) can design according to the specification (such as: JISC7601, JISC7709) of known thermionic-cathode tube or cold-cathode tube.

For enabling above-mentioned purpose of the present invention, feature and advantage more become apparent, and are described in detail specific embodiments of the invention below in conjunction with accompanying drawing.

The straight tube lighting device that can share with the present invention, with reference to Fig. 1-2, can comprise: fluorescent tube 1, the lamp plate 2 be located in fluorescent tube 1, and two lamp holders 3 being socketed on 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, easily breaks and the electric shock accidents caused because of electric leakage that breaks to avoid traditional glass fluorescent tube, and the problem that plastics fluorescent tube is easily aging.

The mode of fluorescent tube strengthening can make chemically or physics mode does secondary operations strengthening to glass.The general principle of chemical mode improves the intensity of glass, and its method first exchanges with the Na ion of other alkali metal ion and surface layer of glass or K ion, makes surperficial formation ion exchange layer.After being cooled to normal temperature, glass is in internal layer tension, the state of outer pressurized, thus reaches the object of gaining in strength.Chemical mode includes but not limited to high temperature modification ion-exchange, low form ion-exchange, dealkalize method, surface crystallization method, sodium metasilicate 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, Na ion in glass or the Li Ion Phase in the fused salt little with their radiuses are exchanged, then room temperature is cooled to, due to containing Li ion top layer with containing Na ion or K ion inner layer expansion coefficient different, surface generation residual pressure and strengthening; Meanwhile, when glass neutralization is containing compositions such as Al2O3, TiO2, by ion-exchange, can produce the crystallization that the coefficient of expansion is extremely low, cooled glass surface, by producing very large 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 monovalent cation (as K ion) and Na ion than top layer basic ion (as Na ion) also larger ionic radius, make K ion enter the method on top layer.Such as Na2O+CaO+SiO2 system glass, can flood tens hours in the fuse salt of degree more than 400.Low form ion-exchange can be easy to obtain high strength, has processing method and simply, does not damage the features such as the glass surface transparency, constant row.

3, dealkalize method

Dealkalize method is in the high-temperature atmosphere containing sulphurous acid gas and moisture, utilize Pt catalyst treatment glass, Na+ ion is oozed out from surface layer of glass and reacts with sulfurous acid, thus superficial layer becomes rich SiO2 layer, its result becomes low expansion glass due to top layer, produces compression during cooling.

4, surface crystallization method

Surface crystallization method and high temperature modification ion-exchange unlike, form low-expansion microcrystal by means of only heat treatment on top layer, thus make it the method strengthened.

5, sodium metasilicate reinforcement

Sodium metasilicate reinforcement processes in the aqueous solution of sodium metasilicate (waterglass) under several atmospheric pressure more than 100 degrees Celsius, thus obtain the high strength glass being difficult to scuffing top layer.

Physics mode does glass to be strengthened, and can include but not limited to, uses the mode of coating or changes the structure of article.The matrix that coating sprays as required determines kind and the state of coating, can be ceramic tile strengthened coat, acrylic coating or glass coating etc., can be liquid or gaseous state coating when being coated with.Change the structure of article, such as, do structural strengthening design in part of easily breaking.No matter be that chemical mode or physics mode are not limited to single mode and implement above, any one that can mix in physics mode or in chemical mode does any matched combined.

The present embodiment explains with structure-reinforced design, and described fluorescent tube 1 comprises 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 all less than the external diameter of main body 102.Particularly, the two ends of fluorescent tube 1 are by strengthening section process, and end 101 forms strengthening section structure, lamp holder 3 is enclosed within the end 101 after strengthening, the difference of lamp holder 3 external diameter and lamp tube main body 102 external diameter can be made like this to diminish, and even completely equal, namely lamp holder 3 external diameter is equal with main body 102 external diameter.The benefit of such setting is, in transportation, packaging support only can not contact lamp holder 3, it can contact lamp holder 3 and fluorescent tube 1 simultaneously, making whole lighting source uniform force, and lamp holder 3 can not be made to become unique stress point, concentratedly to break due to stressed in the position avoiding lamp holder 3 to be connected with lamp tube end 101, improve the quality of product, and have effect attractive in appearance concurrently.

In the present embodiment, lamp holder 3 external diameter is substantially equal with main body 102 external diameter, and tolerance is in positive and negative 0.2mm, is no more than at most positive and negative 1mm.

In order to reach the lamp holder 3 external diameter object substantially equal with main body 102 external diameter, according to the thickness of different lamp holders 3, the end 101 after strengthening can be 1mm ~ 10mm with the difference range of main body 102 external diameter; Or preferred, the end 101 after strengthening can be relaxed to 2mm ~ 7mm with the difference range of main body 102 external diameter.

In the present embodiment, with reference to Fig. 3, seamlessly transit, form a transition part 103 between the end 101 of fluorescent tube 1 and main body 102, transition part 103 is in cambered surface, and namely transition part 103 section is vertically arc shaped.

The length of transition part 103 is 1mm ~ 4mm, if be less than 1mm, then and the insufficient strength of transition part; If be greater than 4mm, then can reduce the length of main body 102, reduce light-emitting area, need the corresponding increase of the length of lamp holder 3 to coordinate with main body 102 simultaneously, cause the material of lamp holder 3 to increase.In other embodiments, then transition part 103 also can not be arc.

For the standard fluorescent tube of T8, the external diametrical extent of the end 101 after strengthening is 20.9mm ~ 23mm, if be less than 20.9mm, then the internal diameter of end 101 is too small, causes power module cannot insert in fluorescent tube 1.The external diametrical extent of main body 102 is 25mm ~ 28mm, if be less than 25mm, then with existing process conditions, inconvenience does strengthening section process to its two ends, if be greater than 28mm, will not meet professional standard.

Continue with reference to Fig. 2 and composition graphs 6, lamp plate 2 is provided with light emitting diode, light emitting diode comprises some LED component 202 and (is understandable that, in the embodiment of the present invention, LED component also can be expressed as light emitting diode, and all LED component 202 can be expressed as light emitting diode group), power module 5 is provided with, by lamp plate 2 electrical communication between LED component 202 and power module 5 in lamp holder 3.In other illustrate, light emitting diode (containing LED component 202) and power module 5 also can be referred to as circuit of LED module.

Wherein, power module 5 can be single body (namely all driving power assemblies are all integrated in parts), and is located in the lamp holder 3 of fluorescent tube 1 one end; Or power module 5 also can be divided into two parts, be called two individual (namely all power supply modules are separately positioned in two parts), and two parts be located at respectively in the lamp holder 3 of lamp tube ends.If when fluorescent tube 1 only has one end to do strengthening section process, power supply prioritizing selection is single body, and be located in the lamp holder 3 corresponding to the end after strengthening 101.

No matter be single body or two individuality, the generation type of power module can have Mutiple Choice, such as, can be a kind of embedding shaping after module, particularly, use a kind of silica gel (thermal conductivity factor >=0.7w/mk) of high heat conduction, by mould power supply module carried out to embedding is shaping to be obtained, the power module that this mode obtains has the advantage that height insulate, height dispels the heat, profile is more regular, and can coordinate with other structural members easily.Or, also can be shaping for not making casting glue, directly exposed power module assembly is embedded in lamp holder inside, or after exposed power module is encased with traditional heat-shrink tube, then embed the inside of lamp holder 3.

Please refer to Fig. 2 and composition graphs 4-6, one end of usual power 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 lamp holder 3 conductive pin be provided with for connecting external power source is hollow conductive pin 301.The male plug 501 of power 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 also can adopt solid conductive pin, and power module 5 is by welding, and brought into physical contact etc. can reach the mode of electric connection and conductive pin is electrically connected.Now male plug 501 and female plug 201 are equivalent to adapter, for power 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, make hollow conductive pin 301 that slight distortion occur, thus fix the metal ferrule 502 on power module 5, and realize electrical connection.Lamp holder 3 is provided with the air-vent (may also be other shape, as Pinhole-shaped, Xiao Lianzhuan, waits and can realize breathing freely) of WIFI shape.

During energising, electric current arrives lamp plate 2 by LED driving circuit, male plug 501 and female plug 201 in the hollow conductive pin 301 of LED lamp tube one end, metal ferrule 502, power module 5 successively, and arrives LED component 202 by lamp plate 2.

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 right side lamp holder 3 is 30% ~ 80% of the length dimension of left side lamp holder 3.The length dimension of better right side lamp holder 3 is 2/3 of the length dimension of left side lamp holder 3.In this enforcement, the length dimension of right side lamp holder 3 is roughly the half of the size of left side lamp holder 3.The size of left side lamp holder 3 is between 15mm ~ 65mm (specifically depending on application).

The power module 5 be provided with in lamp holder 3 is illustrated as shown in figure 24 with the connecting circuit of lamp plate 2 and LED component 202.

Above-mentioned power module and LED module are all included in described lamp.LED each side there is a lamp holder (not shown), be socketed on the two ends of fluorescent tube.Refer to shown in Fig. 2, left side lamp holder 3 has hollow conductive pin 301.One surface of lamp holder 3 has hollow conductive pin 301.With reference to figure 2 and in conjunction with Figure 24, hollow conductive pin 301, is provided with 4 altogether, is electrically connected to 4 metal ferrules 502 respectively, that is, the first pin A1, the second pin A2 of side; And the 3rd pin B1 of opposite side, the 4th pin B2.

As shown in figure 24.LED 100 can comprise: rectification unit 110, filter unit 120, LED module 630.

LED module 630 is arranged on lamp plate, and power module (comprising rectification unit 110, filter unit 120) can be arranged on lamp plate or in lamp holder.Preferably be arranged on lamp plate for all or part of of LED module 630, and power module is arranged in lamp holder (being preferably arranged at the lamp holder that length is longer), the heat of such power module can not directly affect LED module 630.Part or all of electric capacity in power module is arranged at the shorter right side lamp holder 3 of length, arranges like this and described electrochemical capacitor can be made to avoid, because power device operationally produces higher temperature (namely overheated) impact on it, improving its reliability; Also spatially can be separated in rectification unit and filter unit because of described electrochemical capacitor, thus solve the problem of electromagnetic interference.

LED module 630 comprises electric capacity 635, and electric capacity 635 can be electrochemical capacitor, may have the generation of rosin joint when welding, and range estimation is difficult to detect (lamp assembled after, described assembly is built-in with in lamp holder).Due to electrochemical capacitor 635 rosin joint, can cause in LED module 630 and diminish in the equivalent capacitance value of LED component 202 parallel connection.The amplitude of the concussion of the operating current of LED component 202 can be made like this to become large, and namely LED component 202 has larger brightness change.By lightening LED lamp, photo resistance is set at fluorescent tube annex, can judges whether electrochemical capacitor 635 has rosin joint by the information of photo resistance of sampling.

Rectification unit 110 is electrically connected the first pin A1, the second pin A2 of described LED, in order at least one of them the AC rectification coupling described first pin A1 and described second pin A2 is become direct current.Filter unit 120 is electrically connected described rectification unit 110 to receive described direct current, in order to by described direct current filtering.

LED module 630 is electrically connected described filter unit 120, and the direct current of corresponding filtering and luminous.

In preferred embodiment, the two-sided of printed circuit board is equipped with electronic building brick.Part or all of circuit in the circuit such as rectification unit 110, filter unit 120 includes dual inline type (DualInlinePackage, DIP) package assembling.These dual-inline package assemblies, at left side and/or right side printed circuit board, are arranged on the same side; In addition, left side and/or right side printed circuit board also can arrange the assembly of non-dual-inline package.The dual-inline package assembly higher due to component height is arranged at the same side, effectively can reduce the printed circuit board whole height arranging assembly.

In another embodiment, the component height that can be arranged at printed circuit board (PCB) is classification foundation.On printed circuit board (PCB), component height is arranged at the same side higher than the assembly unification of a predetermined altitude value; The setting of other assembly does not then limit, also can in the same side or partly or entirely in opposite side.

Refer to Fig. 4, because lamp holder 3 is provided with air-vent, the heat that these electronic building bricks in lamp holder can be made to produce can carry out heat loss through convection through air-vent.Preferably, the material of fluorescent tube is glass.The heat transfer of glass material is better than plastic material.When LED component 202 is affixed on tube inner wall, the work heat that produces of LED component 202 can be dispelled the heat through glass tube conduction, even LED component 202 produce heat also can carry out right heat radiation through air-vent simultaneously.

In fig. 24, rectification unit 110 is a bridge rectifier, comprises diode D1, D2, D3 and D4, in order to carry out full-wave rectification to alternating current, to produce direct current.

One anode of diode D2 is electrically connected one end of described filter unit 120, and negative electrode is electrically connected an anode of described diode D1, and a negative electrode of described diode D1 is electrically connected the other end of described filter unit 120.The tie point of above-mentioned diode D1 and D2 is electrically connected described first pin A1.The anode of diode D4 is electrically connected one end of described filter unit 120, and negative electrode is electrically connected the negative electrode of diode D3, and the negative electrode of diode D3 is electrically connected the negative electrode of diode D1.The tie point of above-mentioned diode D3 and D4 is electrically connected described second pin A2.

Rectification unit 110 also can be full-wave rectifying circuit or the half-wave rectifying circuit of other kinds, and does not affect the function of the present invention program for reaching.

In fig. 24, filter unit 120 comprises electric capacity C1, C2 and an inductance L 1.Described electric capacity C1 is in parallel with described diode D3 and D4 connected.And described electric capacity C2 connects with described inductance L 1, then in parallel with described electric capacity C1.Described filter unit 120 receives the described DC signal after the rectification of described rectification unit 110, and the radio-frequency component in DC signal described in filtering.Through the filtered described DC signal of described filter unit 120, its waveform is preferably a level and smooth DC waveform.

Described filter unit 120 also can be that other can the filter circuit of filtering radio-frequency component, and does not affect the function of the present invention for reaching.

In fig. 24, LED module 630 comprises inductance 633, at least one LED component 202, transistor switch 631, diode 632 and electric capacity 634 and 635.Inductance 633, transistor switch 631, diode 632 and electric capacity 634 and 635, can be arranged in lamp holder that (as: electric capacity 635 is located in the shorter lamp holder of length, remaining assembly is located in the longer lamp holder of length dimension), and LED component 202 is arranged on lamp plate.Diode 632 is connected with transistor switch 631, then in parallel with the electric capacity C2 of filter unit 120.(namely the anode of diode 632 is electrically connected one end of inductance 633, with the tie point of described transistor switch 631), the anode of its negative electrode and described at least one LED component 202 is electrically connected, and the negative electrode of described at least LED component 202 is electrically connected the other end of described inductance 633.The branch circuit parallel connection formed at least one LED component 202 has electric capacity 634 and 635.

Transistor switch 631 received pulse signal, with according to periodically conducting and the cut-off of described pulse signal.Above-mentioned pulse signal can be the pulse signal of a fixed pulse width, or the pulse width modulation signal produced according to the electric current of described at least LED component 202 by a PWM controller (not shown).When transistor switch 631 conducting, the electric current of described inductance 633 flows through described transistor switch 631.When described transistor switch 631 ends, at least LED component 202 described in the electric current of inductance 633 flows through through diode 632, makes it luminous.

In fig. 24, transistor switch 631 can be N-type metal-oxide half field effect transistor, P type metal-oxide half field effect transistor, and enhancement mode metal-oxide half field effect transistor, vague and general type metal-oxide half field effect transistor or bipolar transistor etc. have the transistor of switching function.

Described at least LED component 202 can be single string or light emitting diode of going here and there more, with the power demand that correspondence is different, provides required illumination.

The invention provides a kind of straight tube lighting device, it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on the two ends of described fluorescent tube respectively, described two lamp holders are respectively equipped with the conductive pin for connecting external power source, form the first pin, the second pin and the 3rd pin, the 4th pin with correspondence; One substrate, is positioned at this fluorescent tube, and comprises at least one conductive layer and at least one dielectric layer; One light-emitting diode (LED) module, comprises at least one light emitting diode and arranges on the substrate; And a power module, comprise a rectification unit, one first drive circuit, one second drive circuit and a switch.

Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal.Described first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides one first signal to arrive described light-emitting diode (LED) module through one first current path.Described second drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a secondary signal to arrive described light-emitting diode (LED) module through one second current path.Described switch selectively switch on allow electric current along described first current path by and this second drive circuit of bypass, and allow between electric current passes through along described second current path.This at least one light emitting diode is suitable for being electrically connected through described at least one conductive layer and described first drive circuit, described second drive circuit.Described at least one light emitting diode has been luminous according to described first signal or described secondary signal.And this dielectric layer and this light emitting diode are set up respectively and have physical contact with this conductive layer.The description of the embodiment of the structure of aforesaid substrate will be comprised in the description referring to Figure 16-17.

The present invention provides again a kind of straight tube lighting device, and it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on the two ends of described fluorescent tube respectively, described two lamp holders are respectively equipped with the conductive pin for connecting external power source, form the first pin, the second pin and the 3rd pin, the 4th pin with correspondence; One light-emitting diode (LED) module, comprises at least one light emitting diode; One power module, comprises a rectification unit, one first drive circuit, one second drive circuit, a switch and a circuit substrate; And a flexible base plate, be positioned at this fluorescent tube.

Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal.Described first drive circuit is electrically connected described rectification unit, receives described DC signal and provides one first signal to arrive described light-emitting diode (LED) module through one first current path.Described second drive circuit is electrically connected described rectification unit, receives described DC signal and provides a secondary signal to arrive described light-emitting diode (LED) module through one second current path.Described switch selectively switch on allow electric current along described first current path by and this second drive circuit of bypass, and allow between electric current passes through along described second current path.This circuit substrate has been this first drive circuit of carrying and this second drive circuit at least one, and at one end has one first pad, and this first pad and this first drive circuit or this second drive circuit are electrically connected.This flexible base plate at one end have one second pad with this first pad solder, this second pad has at least two weld pads, and this second pad welds with at least one perforation place in those weld pads of this first pad, and this flexible base plate comprises at least one conductive layer and at least one dielectric layer.This at least one light emitting diode to be arranged on described flexible base plate and to be suitable for being electrically connected through described second pad, the first pad and at least one conductive layer and described first drive circuit or described second drive circuit.Described at least one light emitting diode is in order to luminous according to described first signal or described secondary signal.And this dielectric layer and this light emitting diode are set up respectively and have physical contact with this conductive layer.The description of the embodiment of the structure of foregoing circuit substrate and flexible base plate will be comprised in the description referring to Figure 16-17.

The present invention reoffers a kind of straight tube lighting device, and it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on the two ends of described fluorescent tube respectively, described two lamp holders are respectively equipped with the conductive pin for connecting external power source, form the first pin, the second pin and the 3rd pin, the 4th pin with correspondence; One light-emitting diode (LED) module, comprising at least one light emitting diode has been luminescence; One power module, comprises a rectification unit, one first drive circuit, one second drive circuit, support both-end power-on circuit and a switch.Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal.Described first drive circuit is electrically connected described rectification unit, and is suitable for receiving described DC signal.Described second drive circuit is coupled to described first drive circuit.Described support both-end power-on circuit is coupled to the 3rd pin and the 4th pin, provides AC signal to flow through between this first pin or this second pin and the 3rd pin or the 4th pin to allow described external power source.

This straight tube lighting device more comprises: a flexible base plate; be positioned at this fluorescent tube; be electrically connected with this second drive circuit, this support both-end power-on circuit; and comprise a conductive layer, a dielectric layer and a protective layer; wherein this dielectric layer and this light emitting diode are set up and this conductive layer physical contact respectively, and this protective layer is also set up and this conductive layer physical contact.And this switch is coupled to this light emitting diode, and be switch on be electrically connected this second drive circuit and be electrically connected between this support both-end power-on circuit, allow electric current when wherein this switch is electrically connected this support both-end power-on circuit along one first current path through this first drive circuit, this light-emitting diode (LED) module and this support both-end power-on circuit, and allow electric current along one second current path through this first drive circuit, this second drive circuit and this light-emitting diode (LED) module when this switch is electrically connected this second drive circuit.The description of the embodiment of the structure of above-mentioned flexible base plate will be comprised in the description referring to Figure 16-17.

Figure 25 is the circuit diagram of straight tube lighting device in the first preferred embodiment of the present invention.As shown in figure 25, described straight tube lighting device 100 comprises: rectification circuit or unit 110, first drive circuit 120, light-emitting diode (LED) module 630 (comprising light emitting diode 202), the second drive circuit (definition according to " light-emitting diode (LED) module " can be contained in light-emitting diode (LED) module 630), support both-end power-on circuit 140 and switch or circuit 635.This light-emitting diode (LED) module 630 comprises a substrate and at least one light emitting diode 202 arranged on the substrate has been luminescence.Straight tube lighting device 100 also comprises a power module 5, and wherein namely this power module 5 comprises rectification unit 110, first drive circuit 120, this second drive circuit, and switch 635.And power module 5 more can comprise support both-end power-on circuit 140.

Straight tube lighting device 100 is as known thermionic-cathode tube or cold-cathode tube, have the cylinder of a transparent or astigmatism effect, size (length, radius) can design according to the specification (such as: JISC7601, JISC7709, PL-C, PL-S, PL-F) of known thermionic-cathode tube or cold-cathode tube.

Above-mentioned rectification unit 110, first drive circuit 120, light-emitting diode (LED) module 630, support both-end power-on circuit 140 and switch 635 can all be contained in this cylinder.This straight tube lighting device 100 each side there is a lid (not shown), be inserted in this cylindrical two ends.Refer to shown in Figure 25, left side lid has this first pin A1 and this second pin A2, and right side lid has one the 3rd pin B1 and the 4th pin B2.This first pin A1 and this second pin A2 perpendicular to lid on the left of this one surface and be conductor; Similarly, the 3rd pin B1 and the 4th pin B2 perpendicular to lid on the right side of this one surface and be conductor.

In concrete enforcement, described rectification circuit 110 is electrically connected one first pin A1, the one second pin A2 of described straight tube lighting device 100, in order at least one of them the AC rectification coupling described first pin A1 and described second pin A2 is become approximate (such as pulsed, a pulsating) direct current.Described first drive circuit 120 is electrically connected described rectification unit 110 to receive described direct current, in order to by described direct current filtering.Specifically, described rectification circuit 110 can be a bridge rectifier, comprises diode D1, D2, D3 and D4, produces direct current in order to carry out full-wave rectification to alternating current.One anode of described diode D3 is electrically connected one end of described first drive circuit 120, and a negative electrode is electrically connected an anode of described diode D1, and a negative electrode of described diode D1 is electrically connected the other end of described first drive circuit 120.The tie point of above-mentioned diode D1 and D3 is electrically connected the first pin A1.One anode of described diode D4 is electrically connected the described anode of described diode D3, and a negative electrode is electrically connected an anode of described diode D2, and a negative electrode of described diode D2 is electrically connected the negative electrode of described diode D1.The tie point of above-mentioned diode D2 and D4 is electrically connected described second pin A2.

Described rectification circuit 110 also can be full-wave rectifying circuit or the half-wave rectifying circuit of other kinds, and does not affect the function of the present invention for reaching.

Described first drive circuit 120 has been generation/output one first signal.In concrete enforcement, described first drive circuit 120 can be coupled to rectification circuit 110 and comprise a wave filter.Described wave filter can be carry out filtering to the signal after the rectification of described rectification circuit 110, to produce described first signal in DC waveform.In concrete enforcement, it has been filtering that described first drive circuit 120 can comprise a capacitor, or described light emitting diode 202 is directly in parallel with a capacitor, and carries out filtering by described capacitor.

Can comprise a capacitor at above-mentioned described first drive circuit has been in the concrete enforcement of filtering, and as shown in figure 25, described first drive circuit 120 can comprise electric capacity C1, C2 and an inductance L 1.Described electric capacity C1 is in parallel with described diode D2 and D4 connected.And described electric capacity C2 connects with described inductance L 1, then in parallel with described electric capacity C1.Described first drive circuit 120 receives the direct current after the rectification of described rectification circuit 110, and the radio-frequency component in filtering direct current.Through the filtered direct current of above-mentioned first drive circuit 120, its waveform is a level and smooth DC waveform.Described first drive circuit 120 also can be that other can the filter circuit of filtering radio-frequency component, and does not affect the function of the present invention for reaching.

Described second drive circuit has been generation/export a secondary signal.In concrete enforcement, as shown in figure 25, described second drive circuit can comprise: diode 632, transistor switch 631, Inductive component 633; Diode 632 is connected with transistor switch 631 and is formed branch road, the anode of diode 632 is held with the ㄧ of transistor switch 631 connect (anode of this diode 632 is connected the tie point of this transistor switch 631 and this Inductive component 633), negative electrode and first drive circuit 120 of diode 632 are electrical connected, and the other end of transistor switch 631 and the first drive circuit 120 are electrically connected.

In a particular embodiment, the inductance 633 in this second drive circuit can be common mode inductance with the inductance L 1 in this first drive circuit 120, and this first drive circuit 120 can be made to play good EMI Filtering effect.

Described light-emitting diode (LED) module 630 comprises a substrate (not shown) and at least one light emitting diode 202 arranged on the substrate has been luminous according to described first signal or described secondary signal.Described substrate and described first drive circuit 120, described second drive circuit are electrically connected, and comprise at least one conductive layer and at least one dielectric layer.Wherein said dielectric layer and described light emitting diode 202 are arranged on described conductive layer respectively.And described lighting device 100 comprises one first current path arrives this light-emitting diode (LED) module 630 and this second drive circuit of bypass from this first drive circuit 120, also comprise one second current path and arrive this light-emitting diode (LED) module 630 from this second drive circuit.This switch 635, selectively switches on and allows electric current along this first current path by allowing between electric current passes through along this second current path.

The advantage of position that switch 635 is set up as shown in Figure 25 is, switch 635 easily control by the input voltage of ㄧ additional controller switch, be arranged at if avoid between light-emitting diode (LED) module 630 and the first drive circuit 120, be subject to the first drive circuit 120 output signal impact and not easily by additional controller to control its switching.

In this preferred embodiment, straight tube lighting device 100 also comprises supports that both-end power-on circuit 140 is electrically connected the 3rd pin B1 and the 4th pin B2, can receive power supply input between its ends between with power supply to light emitting diode 202 to allow straight tube lighting device 100.It is noted that, the embodiment of straight tube lighting device of the present invention does not require to use this support both-end power-on circuit 140, that is this support both-end power-on circuit 140 is optional (optional).In the present embodiment, this support both-end power-on circuit 140 comprises diode D5 and D6, capacitor C3, C4 and C5.The electrical connecting luminous diode module 630 of one negative electrode of this diode D5, its anode is electrically connected with one end of this capacitor C3 and a negative electrode of this diode D6 respectively, and an anode of this diode D6 is electrically connected light-emitting diode (LED) module 630.The other end and this capacitor C4 and C5 of this capacitor C3 are electrically connected, and this capacitor C4 and C5 is electrically connected the 3rd pin B1 and this four pin B2 respectively.When capacitor C3, C4 and C5 can avoid user to install, partly there is the danger of getting an electric shock in false touch fluorescent tube conduction.

As above-mentioned, in fig. 25, this second drive circuit comprises diode 632, transistor switch 631 and an Inductive component 633.This diode 632 is connected with this transistor switch 631, and one end of this Inductive component 633 is electrically connected the tie point of this diode 632 and this transistor switch 631.And when this switch 635 is electrically connected this second drive circuit, this switch 635 is electrically connected the other end of this Inductive component 633.

Described switch 635 can be single-pole double-throw switch (SPDT), and its K end is connected with light emitting diode 202, and K1 end is connected with described inductance 633, is electrically connected to the first drive circuit 120 after K2 end and one end of described transistor switch 631 connect.The tie point that the other end and diode 632 and the transistor switch 631 of inductance 633 are connected is connected.

Described transistor switch 631 receives a pulse signal, with according to periodically conducting and the cut-off of described pulse signal.Described pulse signal can be the pulse signal of a fixed pulse width, or the pulse width modulation signal produced according to the electric current of described at least one light emitting diode 202 by a PWM controller (not shown).When described switch 635 connects described K1 end, when transistor switch 631 is in conducting, electric current is through described at least one light emitting diode 202, described inductance 633, described transistor switch 631; When described transistor switch 631 is in cut-off, the electric current of described inductance 633 flows through at least one described light emitting diode 202 through diode 632.By conducting and the cut-off of transistor switch 631, adjust the electric current flowing through LED module 630, realize the electric current substantially constant flowing through LED module, thus the brightness uniformity of its LED is constant, can delay the light decay of LED like this, and the service life of LED is maximized.

In the present embodiment, described transistor switch 631 can be a N-type metal-oxide half field effect transistor.In addition, P type metal-oxide half field effect transistor, or the transistor that enhancement mode metal-oxide half field effect transistor, vague and general type metal-oxide half field effect transistor, bipolar transistor etc. have a switching function is also applicable to the present invention.

In the present embodiment, described switch 635 also can pass through wire jumper, connects reserved port select K and K1 or K2 to connect during as used by external wire, or as modes such as rotary switches, and do not affect the function of the present invention for reaching.It all belongs in protection scope of the present invention.

Hereafter put up with described switch, switch on allow electric current along described first current path by allow electric current along described second current path by between principle be described:

(1) when described switch 635 connects K1 contact

As shown in figure 26, at this moment described first pin A1 and described second pin A2 couples an alternating current (as civil power), and described 3rd pin B1 and described 4th pin B2 is suspension joint (floating).When the AC signal that described AC power provides is in positive half-wave, one electric current is flowed into by described first pin A1, is flowed out after the diode D1 of described rectification circuit 110, the first drive circuit 120, light-emitting diode (LED) module 630, the K1 contact of change-over switch 635 and the diode D4 of rectification unit 110 by the second pin A2.When the AC signal that described AC power provides is in negative half-wave, one electric current is flowed into by the second pin A2, and the K1 contact rectification unit 110 through the diode D2 of rectification unit 110, the first drive circuit 120, light-emitting diode (LED) module 630, change-over switch 635 is flowed out by the first pin A1.Support that when this pattern both-end power-on circuit 140 is not to the power supply of light emitting diode 202.At this moment because being provided with capacitor C3, C4, C5, when can reduce to install, A1 and A2 termination enter civil power, and hand contacts the danger that B1 or B2 end occurs to get an electric shock.If input termination instead also can not produce potential safety hazard simultaneously.

(2) when change-over switch 635 connects K2 contact

As shown in figure 27, by described first pin A1 and described second pin A2 one of them or the 3rd pin B1 and the 4th pin B2, one of them flows into alternating current one electric current, and is flowed out by another.Such as, alternating current from the first pin A1 and described second one of them end of pin A2 through rectification circuit 110, first drive circuit 120 L1, light-emitting diode (LED) module 630, through the K2 contact of change-over switch 635, eventually through described 3rd pin B1 and described 4th pin B2, one of them flows out.

In concrete enforcement, when change-over switch 635 connects K2 contact, the branch road that transistor switch 631 is connected with diode 632 can also arrange no-load protection.Such as, when detecting the electric current flowing through transistor switch 631 and also do not reach the current value of setting within the time that certain is preset, be judged to be zero load, thus trigger no-load protective circuit.

Switched by described switch 635 and decide electric current along the second current path, namely via described second drive circuit to described light-emitting diode (LED) module 630; Or electric current along the first current path namely through described first drive circuit 120 to described light-emitting diode (LED) module 630 (in this embodiment and through supporting both-end power-on circuit 140), and the second drive circuit described in bypass.

Different circuit is adapted to normally to work in order to enable described straight tube lighting device, can arrange accordingly described switch 635 and described second drive circuit, to comprise booster circuit (boost circuit), reduction voltage circuit (buck circuit) etc.Hereafter will be described with regard to the above-mentioned specific embodiment comprising booster circuit, reduction voltage circuit or other circuit respectively.

(1) embodiment of booster circuit is comprised

Outside above-mentioned rectification circuit 110, first drive circuit 120 (can comprise capacitor C1 shown in Figure 28 A in position (1)), straight tube lighting device 100 shown in Figure 28 A also comprises described second drive circuit and comprises a booster circuit.This booster circuit comprises diode 632, transistor switch 631, Inductive component 633 and a capacitor C (inessential).Described diode 632 is in parallel with described transistor switch 631 with after capacitor C in series, then jointly connects with described inductance 633.Should be noted and this first drive circuit can be selected to comprise a capacitor C1 (in position (1)) for filtering at embodiments of the invention, or this light emitting diode 202 is in parallel with a capacitor (in position (2)), so can save the capacitors count in lighting device 100.

One end and this first drive circuit 120 of described switch 635 are electrically connected, and the other end switches on and an input of this second drive circuit (such as at inductor 633) is electrically connected and and between this light-emitting diode (LED) module 630 (light emitting diode 202) is electrically connected.When described switch 635 be switched to be electrically connected with this light emitting diode 202 time, be that described light emitting diode 202 is powered by the first signal Vin of described first drive circuit 120, namely select the first current path be switched to from described first drive circuit 120 to described light-emitting diode (LED) module 630.When described switch 635 be switched to be electrically connected with the inductor 633 of this second drive circuit time, be select the second current path of being switched to from described second drive circuit to described light-emitting diode (LED) module 630.Wherein, be in conducting or cut-off (signal received by its gate controls) through described transistor switch 631, by this second drive circuit, this light-emitting diode (LED) module 630 powered.And capacitor C can play the effect of voltage stabilizing to light emitting diode 202.

Similarly, Figure 28 B illustrates another embodiment comprising booster circuit.Be with Figure 28 A embodiment difference, in Figure 28 B, switch 635 is arranged at different positions, its one end is electrically connected at light emitting diode 202, and the other end switches on and an output of this second drive circuit (such as the tie point of capacitor C and diode 632) is electrically connected and and between this first drive circuit 120 (containing capacitor C1) is electrically connected.When this switch 635 be switched to be electrically connected with the tie point of capacitor C and diode 632 time, be the second current path selecting to be switched to from described second drive circuit to described light-emitting diode (LED) module 630.Wherein, be in conducting or cut-off through described transistor switch 631, by this second drive circuit, this light-emitting diode (LED) module 630 powered.And capacitor C can play the effect of voltage stabilizing to light emitting diode 202.When this switch 635 be switched to be electrically connected with this first drive circuit 120 (containing capacitor C1) time, powered for described light emitting diode 202 by described first drive circuit 120, namely select the first current path be switched to from described first drive circuit 120 to described light-emitting diode (LED) module 630.In Figure 28 B, the advantage of the position that switch 635 is set up is, switch 635 easily control by the input voltage of ㄧ additional controller to switch on and be electrically connected with an output of this second drive circuit (such as the tie point of capacitor C and diode 632), and avoid being subject to the output signal impact of the first drive circuit 120 and not easily switched to control it by additional controller.

(2) embodiment of reduction voltage circuit is comprised

Outside above-mentioned rectification circuit 110, first drive circuit 120 (can comprise capacitor C1 shown in Figure 29 A (in position (1))), straight tube lighting device 100 shown in Figure 29 A also comprises described second drive circuit and comprises a reduction voltage circuit.This reduction voltage circuit comprises transistor switch 631 and 634, Inductive component 633 and capacitor C (inessential).Inductor 633 is in parallel with transistor 631 with after capacitor C in series, then jointly connects with transistor 634.Should be noted and this first drive circuit can be selected to comprise a capacitor C1 (in position (1)) for filtering at embodiments of the invention, or this light emitting diode 202 is in parallel with a capacitor (in position (2)), so can save the capacitors count in lighting device 100.

One end and this first drive circuit 120 of described switch 635 are electrically connected, and the other end switches on and an input of this second drive circuit (such as at transistor 634) is electrically connected and and between this light-emitting diode (LED) module 630 (light emitting diode 202) is electrically connected.When described switch 635 be switched to be electrically connected with this light emitting diode 202 time, be that described light emitting diode 202 is powered by the first signal Vin of described first drive circuit 120, namely select the first current path be switched to from described first drive circuit 120 to described light-emitting diode (LED) module 630.When described switch 635 be switched to be electrically connected with the transistor 634 of this second drive circuit time, be select the second current path of being switched to from described second drive circuit to described light-emitting diode (LED) module 630.Wherein, be in conducting or cut-off (signal received by its gate controls) through described transistor switch 631,634, by this second drive circuit, this light-emitting diode (LED) module 630 powered.And capacitor C can play the effect of voltage stabilizing to light emitting diode 202.

Similarly, Figure 29 B illustrates another embodiment comprising reduction voltage circuit.Be with Figure 29 A embodiment difference, in Figure 29 B, switch 635 is arranged at different positions, its one end is electrically connected at light emitting diode 202, and the other end switches on and an output of this second drive circuit (such as the tie point of capacitor C and inductor 633) is electrically connected and and between this first drive circuit 120 (containing capacitor C1) is electrically connected.When this switch 635 be switched to be electrically connected with the tie point of capacitor C and inductor 633 time, be the second current path selecting to be switched to from described second drive circuit to described light-emitting diode (LED) module 630.Wherein, be in conducting or cut-off through described transistor switch 631,634, by this second drive circuit, this light-emitting diode (LED) module 630 powered.And capacitor C can play the effect of voltage stabilizing to light emitting diode 202.When this switch 635 be switched to be electrically connected with this first drive circuit 120 (containing capacitor C1) time, powered for described light emitting diode 202 by described first drive circuit 120, namely select the first current path be switched to from described first drive circuit 120 to described light-emitting diode (LED) module 630.In Figure 29 B, the advantage of the position that switch 635 is set up is, switch 635 easily control by the input voltage of ㄧ additional controller to switch on and be electrically connected with an output of this second drive circuit (such as the tie point of capacitor C and inductor 633), and avoid being subject to the output signal impact of the first drive circuit 120 and not easily switched to control it by additional controller.

As from the foregoing, in Figure 28 A and Figure 29 A, this switch 635 is the first signal receiving described first drive circuit 120 and export, and switch on and be electrically connected between an input of described second drive circuit and this light-emitting diode (LED) module (comprising LED202) of electric connection, and this light emitting diode 202 is coupled to an output of this second drive circuit.

And in Figure 28 B and Figure 29 B, this switch 635 is coupled to this light emitting diode 202, and switch on an output of this second drive circuit of electric connection and be electrically connected between this first drive circuit 120 (comprising capacitor C1 in these embodiments), and this second drive circuit is coupled to this first drive circuit 120.

(3) embodiment of buck-boost circuit (buck-boostcircuit) is comprised

In addition, one can also be had to comprise the embodiment of the straight tube lighting device 100 of buck-boost circuit (buck-boostcircuit).As shown in figure 30, described switch can comprise four switch SW1, SW2, SW3 and SW4 in this embodiment, and described second drive circuit and this light emitting diode 202 are connected to a buck-boost circuit structure, wherein this second drive circuit comprises diode 632, transistor switch 631, Inductive component 633 and a capacitor C (inessential).Described diode 632 is in parallel with described transistor switch 631 with after capacitor C in series, then jointly connects with described inductance 633.

As shown in figure 30, one end of switch SW1 and one end of Inductive component 633 and switch SW4 are electrically connected in this embodiment, and whether the other end switches on and be electrically connected with the negative electrode of light emitting diode 202.One end of switch SW2 and diode 632 and capacitor C are electrically connected, and whether the other end switches on and be electrically connected with the anode of light emitting diode 202.One end of switch SW3 and transistor switch 631 and capacitor C are electrically connected, and whether the other end switches on and be electrically connected with the negative electrode of light emitting diode 202.And whether the other end of switch SW4 switches on and is electrically connected with the anode of light emitting diode 202.The switching of each those switch SW1, SW2, SW3 and SW4 is by decision be turned on or off (or cut-off) on this switch.

As shown in figure 30, state (a) representative switch SW1, SW2 wherein of this straight tube lighting device 100 are in conducting switch SW3, SW4 and are then in disconnection (or cut-off).On the other hand, the state (b) of this straight tube lighting device 100 switch SW1, SW2 then represented wherein is in disconnection switch SW3, SW4 and is then in conducting.When state (a), for selecting the second current path be switched to from described second drive circuit to described light-emitting diode (LED) module 630 (containing light emitting diode 202).Wherein, be in conducting or cut-off through described transistor switch 631, by this second drive circuit, this light-emitting diode (LED) module 630 powered.And capacitor C can play the effect of voltage stabilizing to light emitting diode 202.When state (b), then by described first drive circuit 120 (containing capacitor C1) for described light emitting diode 202 is powered, namely select the first current path of being switched to from described first drive circuit 120 to described light-emitting diode (LED) module 630.

Figure 31 A-31D is the circuit diagram of the support both-end power-on circuit 140 that can share with the present invention.When LED light lamp both-end is energized, can via supporting that the circuit 140 of both-end energising flows into or flows out electric current.Support both-end power-on circuit 140 shown in Figure 31 A comprises a bridge rectifier.Figure 31 B, compared to the support both-end power-on circuit 140 shown in Figure 25, eliminates capacitor C3, changes capacitor C4 and C5 into fuse F1 and F2.Figure 31 C, compared to the support both-end power-on circuit 140 shown in Figure 25, changes capacitor C4 and C5 into fuse F1 and F2.Figure 31 D, compared to the support both-end power-on circuit 140 shown in Figure 25, eliminates capacitor C3.

In specific embodiment of the invention, described light emitting diode group 202 can be set to multiple light emitting diode.As shown in Figure 32 A-32C, about the connected mode of LED component in some embodiments of the invention 202, LED component 202 can be connected as shown in fig. 32 a after two parallel connections again, also can connect again as shown in fig. 32b after three parallel connections, also can to connect again after many parallel connections (not shown), also can parallel connection be as shown in fig. 32 c again after many series connection.The mesh architecture of connecting again after Figure 32 A and the parallel connection shown in Figure 32 B, no matter its advantage is that the LED component 202 of arbitrary group of parallel connection has how many damages and opens a way, as long as wherein any one LED component 202 can normal operating, then all can flow through electric current and non-reason LED component and to open a way and that lighting source is stopped is luminous.That is, can make extend the equivalent service life of lighting source.Framework in parallel again after series connection as shown in fig. 32 c, its advantage is all to flow through equal electric current with the LED component 202 in a string, make the brightness uniformity with a string LED component 202 high, the cripetura in the service life also avoiding part LED component 202 to cause because flowing through larger electric current.Described LED component 202 is located on lamp plate, and described lamp plate has at least one deck conductive layer, and series, parallel or series-parallel LED component 202 are electrically connected by described at least one deck conductive layer and reach above-mentioned connection framework.

Figure 33 A is the trace-diagram of corresponding diagram 32A.As shown in figure 33 a, each light-emitting diode component, the 202a as shown in empty frame, 202b, 202c, 202d, can comprise anode and cathode pads.

Metal wire in diagram (indicate 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 equipotential, accordingly, LED component 202a, the negative electrode of 202b is also connected and equipotential 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 in parallel connection.Simultaneously, negative electrode due to LED component 202a and 202b is connected with the anode of LED component 202c and 202d by metal wire and is in equal potentials, therefore LED component 202a in parallel, 202b and LED component 202c in parallel, 202d is in series relationship, thus forms circuit connection diagram as shown in fig. 32 a.

In addition, the Wiring structure of the metal wire according to Figure 33 A, the metal wire of described light-emitting diode component comprises 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 then in order to be electrically connected adjacent first part 202-1, thus makes it be in equipotential.From diagram, due in described first part 202-1 with LED component 202a, the area 202-1 of the anode metallic member immediately of 202b respectively than with LED component 202a, the area 202-1 of the negative electrode metallic member immediately of 202b is little, simultaneously also little than extending area 202-1 with the anode of the negative electrode of LED component 202b, LED component 202c metal wire immediately in first part 202-1.More particularly, can comprise in described first part 202-1 with single LED component anode, with single LED component negative electrode and three parts being connected with the negative electrode and positive electrode of adjacent two LED component, its size is sequentially ascending.Another advantage that described Wiring structure brings is the metal width that the metal width of first part 202-1 is greater than the second part 202-2, make described Part I 202-1 and LED component 202a, the metallic member area of dissipation that the anode of 202b, negative electrode connect is comparatively large under equal length, therefore contributes to the heat radiation of LED component light source.

As shown in Figure 33 B, it is the trace-diagram of corresponding diagram 32B circuit theory diagrams.As shown in Figure 33 B, three LED component 202a, 202b, the positive pole of 202c is connected to same current potential jointly, negative pole is connected to same current potential, and is connected with the positive pole of LED component 202d, thus the LED unit that formation one is in parallel, then connect with follow-up LED unit, thus reticulation circuit structure in parallel again after forming LED component series connection as shown in fig. 32b.

Based on the principle same with legend shown in Figure 33 A, due in described first part 202-1 with single LED component anode, with single LED component negative electrode and three parts being connected with the negative electrode and positive electrode of adjacent two LED component, its size is sequentially ascending, and the metal width of first part 202-1 is greater than the metal width of the second part 202-2, and described Part I 202-1 and LED component 202a, the metallic member area that the anode of 202b, negative electrode connect is comparatively large, therefore contributes to the heat radiation of LED component light source.

Figure 33 C is 20 LED component series connection of corresponding diagram 32C circuit theory diagrams trace-diagram in parallel again.As shown in Figure 33 C, the one 20 LED component string comprises LED component 202a, 202b ..., 202t, in "+" and "-" connect between two metal line.And all LED component strings (often string have 20 LED component) in "+" and "-" in parallel between two metal line, reflect the reticulation circuit structure of LED component as shown in fig. 32 c.

In concrete enforcement, described straight tube lighting device also can comprise releases energy circuit.Described releasing can circuit can be one or more resistance.Described release can circuit in parallel with described filter circuit 120 and/or described LED component 202.After power cut-off, described in release can circuit can alleviate or prevent lighting source occurs when turning off the light glimmer.Described release can circuit may also be other forms of releasing can circuit, as long as can realize: release energy circuit described in passing through during power remove and can continue circulation one scheduled current or more.Can decide according to the current amplitude size of LED component 202 according to this scheduled current.

In addition, in other embodiments, described in release and can combine diffusion layer in an embodiment of the present invention by circuit, the flickering after power cut-off can be reduced further.Improve Consumer's Experience.

In the present embodiment, also the connected mode of male plug 501, female plug 201 can not be adopted, and can replace by conventional wires routing mode, namely the plain conductor that traditional is adopted, one end of plain conductor is connected with power electric, the other end is electrically connected with lamp plate 2, but the mode that wire routing connects likely has the potential risk of fracture in transportation, slightly poor qualitatively.

In other this enforcement, the length dimension of right side lamp holder 3 is roughly the half of left side lamp holder 3 length.

For this reason, being conveniently connected and fixed of lamp holder 3 and fluorescent tube 1, the scheme of the present embodiment is improved for the structure of lamp holder 3.

With reference to Fig. 2,4-5 composition graphs 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 comprises 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 the extension (stretching out the part of insulation tube) of heat-conducting part 303 and fluorescent tube 1.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 towards between one end and transition part 103 of fluorescent tube.

In the present embodiment, insulation tube 302 for insulating at general state, does not limit and uses material to be the material such as plastics, pottery.

PUR 6 (comprising a kind of material be commonly called as welding powder) composition is preferably: phenolic resins 2127#, shellac, rosin, calcite in powder, zinc oxide, ethanol etc.This PUR 6 under the condition of high-temperature heating, can change its physical state and occurs significantly to expand, reach the effect of solidification, add the stickiness of material own, thus can make lamp holder 3 and fluorescent tube 1 close contact, be convenient to LED daylight lamp and realize automated production.In the present embodiment, PUR 6 can present and expands and flow after high-temperature heating, and cool the effect that namely can reach solidification subsequently, certainly, selecting of PUR composition of the present invention is not limited thereto, and also can select the composition of solidification after high-temperature heating to predetermined temperature.Because PUR 6 of the present invention can not cause reliability decrease because the heating element heatings such as power supply module form hot environment, can prevent fluorescent tube 1 and the adhesive property of lamp holder 3 in LED daylight lamp use procedure from reducing, improve long-term reliability.

Particularly, between PUR 6 inner surface that is filled in heat-conducting part 303 extension and the outer peripheral face of fluorescent tube 1 (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 as crossed drawn by dotted line B in Fig. 7) axially vertical with fluorescent tube 1, and sequential is heat-conducting part 303, between 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 expand Post RDBMS, thus contacts with fluorescent tube 1 and lamp holder 3 is fixed on fluorescent tube 1.And between outer peripheral face due to both end 101 and main body 102, there is difference in height, 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 of producing.

During bonding, by external heat equipment by heat conduction to heat-conducting part 303, and then conduct to PUR 6, PUR 6 expanded Post RDBMS, thus lamp holder 3 is fixedly bonded on fluorescent tube 1.

In the present embodiment, as Fig. 7, insulation tube 302 comprises the first pipe 302a and the second pipe 302b that connect vertically, and the external diameter of the second pipe 302b is less than the external diameter of the first pipe 302a, and 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 is concordant with the outer peripheral face of the first pipe 302a, makes the outer surface flat smooth of lamp holder 3, ensures whole lighting source uniform force in packaging, transportation.Wherein, heat-conducting part 303 compares for 1:2.5 ~ 1:5, i.e. heat-conducting part length along the length of lamp holder axial direction and the axial length of insulation tube 302: 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 have be partially filled in overlapped (in Fig. 7 position shown in dotted line A) between the second pipe 302b and fluorescent tube 1, also bonding 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, the position that PUR 6 is filled in described accommodation space is passed through with the axial vertical virtual plane of fluorescent tube (plane as crossed drawn by dotted line A in Fig. 7) by one, sequential is heat-conducting part 303, second pipe 302b, PUR 6 and end 101.Spy gives explanation, and in the present embodiment, PUR 6 does not need to fill up above-mentioned accommodation space (as left space between heat-conducting part in Fig. 7 303 and the second pipe 302b) completely.During manufacture, when during coating hot-melt adhesive 6, the amount of PUR suitably can be increased between heat-conducting part 303 and end 101, make in the process of subsequent heat, PUR can flow between the second pipe 302b and end 101 due to expansion, solidification is rear and then both are bonded connection.

Wherein, after the end 101 of fluorescent tube 1 is inserted in lamp holder 3, the axial length that lamp holder 3 part is inserted in the end 101 of fluorescent tube 1 account for heat-conducting part 303 axial length 2/1 to three/3rds between, such benefit is: on the one hand, ensure 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, the creep age distance between hollow conductive pin 301 and heat-conducting part 303 is strengthened, by make during high voltage people more difficult because of electric shock initiation potential.

Further, PUR 6, the second pipe 302b for the second pipe 302b inner surface 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, being beneficial to heat conducts to PUR 6 from heat-conducting part 303 fast, 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, can not get an electric shock because fluorescent tube 1 has breakage.

Wherein, heat-conducting part 303 can be the material of various easy heat conduction, is sheet metal, and has consideration attractive in appearance concurrently, such as 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 insulating materials, but is good to be not easy heat conduction, avoid heat conduction on the power supply module of lamp holder 3 inside, affect the performance of power supply module, the insulation tube 302 in the present embodiment is plastic tube.

In other embodiments, heat-conducting part 303 can also be made up of along the second pipe 302b circumference interval or not spaced sheet metal multiple.

In other embodiments, lamp holder can also be arranged to other forms, such as:

With reference to shown in Fig. 8-9, lamp holder 3, except comprising insulation tube 302, also comprises 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 radially has lap with fluorescent tube 1.

In the present embodiment, whole magnetic conductive metal part 9 is all positioned at insulation tube 302, and PUR 6 is coated on (magnetic conductive metal part 9 is towards the surface of fluorescent tube 1) on the inner surface of magnetic conductive metal part 9, 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, makes induction coil 11 and 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 is energized, and electromagnetic field is converted to electric current after encountering magnetic conductive metal part 9, magnetic conductive metal part 9 is generated heat, namely use electromagnetic induction technology that magnetic conductive metal part 9 is generated heat, and heat conduction is to PUR 6, PUR 6 expands after absorbing heat and flows, and cooling subsequently makes PUR 6 solidify, to realize object lamp holder 3 being fixed on fluorescent tube 1.Induction coil 11 is as far as possible coaxial with insulation tube 302, makes energy transferring comparatively even.In the present embodiment, the deviation between induction coil 11 and insulation tube 302 axis is no more than 0.05mm.When after bonding completing, fluorescent tube 1 is detached induction coil 11.In the present embodiment, PUR 6 can present and expands and flow after absorption heat, and cool the effect that namely can reach solidification subsequently, certainly, selecting of PUR composition of the present invention is not limited thereto, and also can select the composition solidified after absorbing heat.Or, in other embodiments, do not need additionally to arrange magnetic conductive metal part 9 at lamp holder 3, in PUR 6, only directly need mix the high magnetic conductivity material powder of predetermined ratio, such as: iron, nickel, iron nickel mixture etc., add man-hour, induction coil 11 is energized, after induction coil 11 is energized, make the high magnetic conductivity material powder that is 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 object lamp holder 3 being fixed on 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 of the position 302d supporting magnetic conductive metal part 9, and form a step, axial one end of magnetic conductive metal part 9 leans on step, and after making to arrange magnetic conductive metal part 9, the inner surface of whole lamp holder is concordant.In addition, magnetic conductive metal part 9 can be various shape, such as, sheet in circumferential array or tubulose etc., arranges magnetic conductive metal part 9 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 have towards the support portion 313 of the inner projection of insulation tube 302, and, also be provided with protuberance 310 towards lamp tube main body side on the inner peripheral surface of insulation tube 302, in support portion 313, the radial thickness of described protuberance 310 is less than the radial thickness of described support portion 313.As Figure 11, the protuberance 310 of the present embodiment is connected vertically with support portion 313, and magnetic conductive metal part 9 leans the upper limb (namely support portion is towards the end face of protuberance side) in support portion 313 in the axial direction, leans the radially inner side at protuberance 310 in the circumferential.That is, at least partially protuberance 310 between magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302.Wherein, protuberance 310 can be along the annular of insulation tube 302 circumference extension or the inner peripheral surface circumferentially spaced multiple projection around insulation tube 302, in other words, the arrangement of projection in circumferential equidistant intervals arrangement or non-equally can be spaced, as long as the contact area of the outer surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302 can be made to reduce, but the function of fixing PUR 6 can be reached.

Described support portion 313 by insulation tube 302 inner peripheral surface to the inside protruding 310 thickness be 1mm ~ 2mm, 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 can also be designed to all-metal, now needs to set up an insulator in the bottom of hollow conductive pin, makes to be electrically insulated between lamp holder 3 and hollow conductive pin, to reach high pressure resistant effect, electric shock problem when avoiding user to touch lamp holder 3.

In other embodiments, lamp holder 3 can also be designed to the structure of plastics and metal (metallic member connection conductive pin) hybrid junction, now need to set up an insulator in the bottom of hollow conductive pin, make to be electrically insulated between lamp holder 3 and hollow conductive pin, to reach high pressure resistant effect, electric shock problem when avoiding user to touch 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, and with reference to Figure 12, the shape of emptying aperture structure 901 is circular, but be 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 the function of heat cure and hot melt 6 glue can be reached.Preferably, emptying aperture structure 901 area accounts for 10% ~ 50% of magnetic conductive metal part 9 area.The arrangement of emptying aperture structure 901 in circumferential equidistant intervals arrangement or non-equally can be spaced.

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 also can be the structure from the inside surface relief of the outer surface of magnetic conductive metal part 9, its objective is to be formed raised or sunken at the outer surface in magnetic conductive metal face 9, to reach the object reducing to make the contact area of the outer surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302.But it should be noted that and should ensure magnetic conductive metal part 9 and fluorescent tube stable adhesion simultaneously, reach the function of heat cure PUR 6.

In the present embodiment, with reference to Figure 14, magnetic conductive metal part 9 is a positive circular rings.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 minor axis 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, the inner peripheral surface of insulation tube 302 has support portion 313, the magnetic conductive metal part 9 of anon-normal circular rings is located on support portion, therefore, the contact area of the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302 can be made to reduce, and the function of solidifying hot-melt adhesive 6 can be reached again.

Continue with reference to Fig. 2, the LED daylight lamp of the present embodiment also comprises 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, and can be several sections shown in figure, or is one section of strip.

Lamp plate insulating cement 7 is applied to lamp plate 2 towards on the surface of light source 202, lamp plate 2 is not exposed, thus plays the insulating effect be isolated from the outside by lamp plate 2.Reserve 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 comprises vinyl polysiloxane, hydrogen based polysiloxane and aluminium oxide.The thickness range of lamp plate insulating cement 7 is 100 μm ~ 140 μm (micron).If be less than 100 μm, then do not have enough insulating effects, if be greater than 140 μm, 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.After being coated to LED component 202 surface, the shape of light source glue 8 can be graininess, strip or sheet.Wherein, the parameter of light source glue 8 has refractive index, thickness etc.The scope that the refractive index of light source glue 8 allows is 1.22 ~ 1.6, if the refractive index of light source glue 8 is the square root of LED component 202 housing refractive index, or the refractive index of light source glue 8 is subduplicate positive and negative 15% of LED component 202 housing refractive index, the angular range that total reflection (InternalTotalReflection) then can be made to occur is 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 be less than 1.1mm, will cover incessantly LED component 202, poor effect, if be 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 to side on lamp plate 2 on the surface; 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 again lamp holder 3 being fixed on fluorescent tube 1, is electrically connected LED component 202 with power module 5 simultaneously.Or utilize flexible base plate to get over transition part 103 as Figure 16 and power module 5 welds (namely through transition part 103 weld with power module 5), or take the mode of conventional wires routing to allow lamp plate 2 and power 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 (structure with Fig. 4-5) or Fig. 8 (structure with 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, makes LED component 202 be sticked on the inner peripheral surface of fluorescent tube 1, can increase whole lighting source lighting angle like this, expand angle of visibility, arrange like this and generally can make angle of visibility can more than 300 degree.By being coated with lamp plate insulating cement 7 at lamp plate 2, LED component 202 being coated with the light source glue 8 of insulation, realizing the insulation processing to whole lamp plate 2, like this, even if fluorescent tube 1 breaks, also electric shock accidents can not occur, meet the requirement of safety, improve security.

In an embodiment of the present invention, lamp plate 2 can comprise a substrate, and its scope comprises flexible base plate and rigid substrate.The example of flexible base plate comprises flexible base board, flexible substrate, and the flexible base board of three layers of conductive layer and dielectric layer structure and the flexible substrate of other number of plies conductive layers and dielectric layer structure are contained in the scope system of " flexible base plate " in the present invention).

In concrete enforcement, the light emitting diode 202 of described straight tube lighting device can be arranged on (soft) substrate, as being arranged on the both sides up and down of this (soft) substrate, namely the light emitting diode 202 described at least some can be arranged on towards the axle center of fluorescent tube and towards the long limit of fluorescent tube, and should (soft) substrate mode of can pass through welding realize and the electric connection of this first drive circuit and this second drive circuit, such as, this (soft) substrate passes through at least one pad and this first drive circuit and this second drive circuit and realizes being electrically connected.In an embodiment of the present invention, should (soft) substrate be welded by least one perforation place in this pad to be formed with the electric connection of this first drive circuit, this second drive circuit.In an alternative embodiment of the invention, should be formed through welding of at least one pad with the electric connection system of this second drive circuit and this support both-end power-on circuit by (soft) substrate.

Because 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 still can remain the state of straight tube, at this moment user likely can think that lighting source can also use and go to install voluntarily, easily causes electric shock accidents.Because flexible substrate has pliability and flexible characteristic, solve the situation of rigid strip aluminium base, FR4 plate or Conventional communication three layers of flexible base board pliability and bendability deficiency, therefore the lamp plate 2 of the present embodiment adopts flexible substrate (can be such as flexible circuit board) as substrate, like this after fluorescent tube 1 breaks, namely cannot support the fluorescent tube 1 broken after fluorescent tube 1 breaks to continue to remain straight tube state, to inform that user's lighting source can not use, avoid the generation of electric shock accidents.Therefore, when after employing flexible substrate, the electric shock problem caused due to glass tube fragmentation can be alleviated to a certain extent.

Namely following examples explain using flexible substrate as invention lamp plate 2.

Wherein, can be connected by wire routing between flexible substrate and the output of power 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 substrate is bonded and fixed to the inner peripheral surface of fluorescent tube 1 by bonding agent 4, and as shown in figure 17, and the two ends of flexible substrate can be selected fixing or not be fixed on the inner peripheral surface of fluorescent tube 1.

If the two ends of flexible substrate are not fixed on the inner peripheral surface of fluorescent tube 1, if adopt wire to connect, move in process follow-up, because two ends are free, easily shake in follow-up moving in process, thus likely make wire rupture.Therefore flexible substrate and the connected mode prioritizing selection of power module are for welding, particularly, with reference to Figure 16, be welded on the output of power module 5 after directly flexible substrate can being got over the transition part 103 of strengthening section structure, remove the use of wire from, the stability of improving the quality of products.Now flexible substrate does not need to arrange female plug 201, the output of power module 5 does not need to arrange male plug 501 yet, the concrete practice can be that the output of power module 5 is reserved pad a, and on pad a, stay tin, to make the thickness of the tin on pad increase, convenient welding, accordingly, the end of flexible substrate also reserves pad b, and the pad a of power module 5 output and the pad b of flexible substrate is welded together.

The pad b of flexible substrate has two unconnected weld pads, is electrically connected respectively with light source 202 both positive and negative polarity.In other embodiments, in order to the extendibility in compatible and follow-up use can be reached, the quantity of pad b can have plural weld pad, such as 3, more than 4 or 4, when weld pad is 3,3rd weld pad can be used as ground connection use, and when weld pad is 4, the 4th weld pad can be used for 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 can be row side by side or line up two row, according to accommodating size configuration during actual use in position, cause short circuit as long as be not electrically connected each other.In other embodiments, if by part circuit production on (soft) substrate, pad b only can have an independent weld pad, and weld pad quantity is fewer, and technique is more saved flow process; The more, the electrical connection of (soft) substrate and power module outlet is fixing more to be strengthened weld pad quantity.

In other embodiments, the inside of pad b weld pad can have perforation, when pad a welds together with the pad b of (soft) substrate, the tin of welding can through described perforation, when tin passes perforation, perforation can be deposited in around, when after cooling, the soldered ball having and be greater than penetration hole diameter can be formed, it similarly is the function of nail that this ball structure can play, except fixing through the tin 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, one breach at those weld pads wherein edge of a weld pad can as described perforation, namely the perforation of weld pad is at edge, namely weld pad has a breach, the tin of welding is electrically connected pad a and pad b fixing through described breach, tin can be deposited in perforation around, when after cooling, the soldered ball having and be greater than penetration hole diameter can be formed, this ball structure can form the fixing enhancing of structural electrical connection, in the present embodiment, because the design of breach, it similarly is the function of ㄇ staple that the tin of welding plays.

No matter the perforation of weld pad is first 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 not exclusively covers by described protuberance, guarantee that scolding tin can pass from perforation, when scolding tin pass perforation be deposited in perforation around time, recess can provide the accommodating position of soldered ball.In other embodiments, (soft) substrate has a locating hole, can locate accurately when welding through the weld pad of locating hole by pad a and pad b.

In above-described embodiment, (soft) substrate major part is fixed on the inner peripheral surface of fluorescent tube 1, only be not fixed on the inner peripheral surface of fluorescent tube 1 at two ends, (soft) substrate be not fixed on fluorescent tube 1 inner peripheral surface forms a freedom portion, when assembling, one end of freedom portion and power module welding can drive freedom portion to fluorescent tube internal contraction, the freedom portion of (soft) substrate can be out of shape because of contraction, use above-mentioned (soft) substrate with perforation weld pad, the pad a of side and power module welding that (soft) substrate has light source is towards the same side, when the freedom portion of (soft) substrate is out of shape because of contraction, one end of (soft) substrate and power module welding is the pulling force having a side direction to power module, the pad a having the side of light source and a power module welding compared to (soft) substrate is towards the welding of not the same side, one end of (soft) substrate and power module welding also has a downward pulling force to power module, use above-mentioned (soft) substrate with perforation weld pad, formed structural electrical connection fix strengthen there is better effect.

If the two ends of (soft) substrate are fixed on the inner peripheral surface of fluorescent tube 1, then consider the end of (soft) substrate is provided with female plug 201, then the male plug 501 of power module 5 is inserted female plug 201 and realize electrical connection.

In concrete enforcement, the scope of this flexible base plate contains the flexible base board of three layers of conductive layer and dielectric layer structure and the flexible substrate of other number of plies conductive layers and dielectric layer structure.This flexible base plate comprises the conductive layer of at least one patterning and at least one dielectric layer, and wherein this conductive layer can be arranged at the first type surface of heat-conducting substrate, and this dielectric layer and described light emitting diode are arranged on described conductive layer respectively.Be understandable that, this conductive layer also can be the conductive layer of non-patterned.

As Figure 17, (soft) substrate comprises one deck conductive layer 2a, and LED component 202 is located on conductive layer 2a, is communicated with power sourced electric by conductive layer 2a.With reference to Figure 17, in the present embodiment, (soft) substrate comprises stacked conductive layer 2a and dielectric layer 2b, conductive layer 2a is used for arranging LED component 202 on the surface opposing with dielectric layer 2b, and dielectric layer 2b is then adhered to by bonding agent 4 on the inner peripheral surface of fluorescent tube 1 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 a coated 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 (soft) substrate can comprise one deck conductive layer 2a, then in the circuit protecting layer of the above-mentioned ink material of Surface coating one deck of conductive layer 2a.No matter be that one deck conductive layer 2a structure or two-layer structure (one deck conductive layer 2a and one dielectric layer 2b) can coupled circuit protective layers.Circuit protecting layer also can be arranged at a side surface of (soft) substrate, such as, only arrange circuit protecting layer in the side with light source 202.It should be noted that, (soft) substrate is one deck conductive coating structure 2a or is two-layer structure (one deck conductive layer 2a and one dielectric layer 2b), three layers of flexible base board (pressing from both sides one dielectric layer in two layers of conductive layer) that obvious ratio is general have more pliability and flexibility, therefore, can arrange in pairs or groups (such as: non-straight lamp) with having special formed fluorescent tube 1, and (soft) substrate is close on fluorescent tube 1 tube wall.In addition, (soft) substrate is close to tube wall for preferably to configure, and the number of plies of (soft) substrate is fewer, then radiating effect is better, and material cost is lower, more environmental protection, and pliable and tough effect also has an opportunity to promote.

Certainly, (soft) substrate in the present invention is not limited in three layers with the substrate of lower conductiving layer and dielectric layer structure, in other embodiments, (soft) substrate can comprise more than four layers conductive layers and dielectric layer structure: such as comprise plurality of conductive layers 2a and multilayer dielectric layer 2b, dielectric layer 2b and conductive layer 2a sequentially can interlock stacked and be located at conductive layer 2a and the opposing side of LED component 202, LED component 202 is located at the most last layer of plurality of conductive layers 2a, is communicated 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 isolating the outside of fluorescent tube 1 and inside 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 comprises vinyl-terminated silicone fluid, containing hydrogen silicone oil, dimethylbenzene and calcium carbonate.Wherein the chemical formula of vinyl-terminated silicone fluid is: (C2H8OSi) nC2H3, and the chemical formula of containing hydrogen silicone oil is: C3H9OSi (CH4OSi) nC3H9Si.

It generates product is dimethyl silicone polymer (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 it acts on mainly adjusting viscosity, and then regulates the thickness of adhesive film.

In the present embodiment, the thickness range of adhesive film is 100 μm ~ 140 μm.If adhesive film thickness is less than 100 μm, explosion-proof performance is inadequate, and during glass breaking, whole fluorescent tube can split, and is greater than 140 μm and then can reduces light transmittance, and increases material cost.If explosion-proof performance and light transmittance requirement are comparatively loose, then the thickness range of adhesive film also can relax to 10 μm ~ 800 μm.

In the present embodiment, because fluorescent tube inside scribbles adhesive film, after glass lamp fragmentation, adhesive film can by fragment adhesion together, and the through hole that through fluorescent tube is inside and outside can not be formed, thus prevent user from touching the electrical body of fluorescent tube 1 inside, to avoid electric shock accidents occurs, adopt the adhesive film of said ratio also to have the effect of diffused light, printing opacity simultaneously, improve whole lighting source Luminescence Uniformity and light transmittance.

It should be noted that because the lamp plate 2 in the present embodiment is flexible substrate, therefore also can not adhesive film be set.

In order to improve lighting source light efficiency further, the present embodiment also improves lighting source, respectively for fluorescent tube and light source from two aspects.

With reference to Figure 18, except being close to the lamp plate 2 (or flexible substrate) of fluorescent tube 1 in the fluorescent tube 1 of the present embodiment, also comprise diffusion layer 13, the light that LED component 202 produces is by passing fluorescent tube 1 after diffusion layer 13.

The light that diffusion layer 13 pairs of LED component 202 send plays the effect of diffusion, therefore, the layout of diffusion layer 13 can have various ways, as long as pass fluorescent tube 1 again after light therethrough diffusion layer 13 can be made, such as: diffusion layer 13 can apply or be covered on the inner peripheral surface of fluorescent tube 1, or coating or the diffusion coating (not shown) be covered on LED component 202 surface, or the diffusion barrier sheet covered on outside LED component 202 as an outer cover (or covering).

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, the combination of one or more in usual PS polystyrene, PMMA polymethyl methacrylate, PET (PET), PC (Merlon) is arranged in pairs or groups diffusion particle, a kind of composite formed, when can diffusion be there is during composite described in light therethrough, can revise light uniformly area source with reach optics diffusion effect finally make the brightness uniformity of fluorescent tube distribute.

When diffusion layer 13 is diffusion coating, its composition can comprise at least one in calcium carbonate, calcium halophosphate activated by antimony andmanganese and aluminium oxide or its combination.To arrange in pairs or groups when utilizing calcium carbonate the diffusion coating that suitable solution formed, will there is the effect of excellent diffusion and printing opacity (having an opportunity to reach more than 90%).In addition, also find through the creative work of tool, 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 described 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, the frictional force between diffusion coating and PUR 6 is made to be greater than frictional force between the end face of the end 101 of fluorescent tube when not coating diffusion coating and 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 allocating, the constituent of diffusion coating comprises calcium carbonate (such as CMS-5000, white powder), thickener (such as thickener DV-961, milky white liquid), and ceramics activated carbon (such as ceramic active carbon SW-C, colourless liquid).Wherein, the chemistry of thickener DV-961 is called colloidal silica denaturing acrylamide acid resin, and being used for increases stickiness when calcium carbonate is attached at glass lamp inner peripheral surface, and its component comprises acrylic resin, silica gel and pure water; The component of ceramic active carbon SW-C comprises succinate sulfonate sodium, isopropyl alcohol and pure water, and wherein the chemical formula of succinate sulfonate sodium is:

Particularly, diffusion coating take calcium carbonate as main material, collocation thickener, ceramic active carbon and deionized water, be coated on after mixing on the inner peripheral surface of glass lamp, the average thickness of coating drops between 20 ~ 30 μm, and last deionized water will vapor away, only remaining calcium carbonate, thickener and ceramic active carbon three kinds of materials.Adopt the diffusion layer 13 that this material is formed, the light transmittance of about 90% can be had.In addition, this diffusion layer 13, except the effect with diffused light, can also play the effect of electric isolution, thus makes when glass lamp breaks, and reduces the risk that user gets an electric shock; Meanwhile, this diffusion layer 13 can make LED component 202 when luminescence, allows light produce diffusion, toward penetrating, thus the rear of LED component 202 can be shone, namely near the side of flexible substrate from all directions, avoid occurring dark space in the lamp vessel 1, the illumination comfort of room for promotion.

In other embodiments, diffusion coating can calcium carbonate be also main material, reflecting material (as strontium phosphate or barium sulfate), the thickener of arranging in pairs or groups a small amount of, ceramic active carbon and deionized water, be coated on after mixing on the inner peripheral surface of glass lamp, the average thickness of coating drops between 20 ~ 30 μm, and last deionized water will vapor away, only remaining calcium carbonate, reflecting material, thickener and ceramic active carbon four kinds of materials.Object due to diffusion layer allows light produce diffusion, diffusion phenomenon is at microcosmic, the reflex of light through particle, 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, effectively can increase the diffusion effect of light.Certainly, in other embodiments, also can select the main material of calcium halophosphate activated by antimony andmanganese or the micro-diffusion coating of aluminium oxide, then repeat no more.

Further, continue with reference to Figure 18, the inner peripheral surface of fluorescent tube 1 be also provided with reflectance coating 12, reflectance coating 12 be located at there is LED component 202 lamp plate 2 around, and circumferentially take the part inner peripheral surface of fluorescent tube 1.As shown in figure 18, reflectance coating 12 extends along fluorescent tube circumference in lamp plate 2 both sides.The setting of reflectance coating 12 has the effect of two aspects, on the one hand, when (in figure X-direction) sees fluorescent tube 1 when from the side, owing to there being reflectance coating 12 to stop, can not directly see LED component 202, thus the visual discomfort that minimizing granular sensation causes; On the other hand, the light that LED component 202 sends, through the reflex of reflectance coating 12, can control the angle of divergence of fluorescent tube, and light is irradiated towards the direction not scribbling reflectance coating more, make lighting source obtain identical radiation response with lower power, improve energy saving.

Particularly, reflectance coating 12 is attached on the inner peripheral surface of fluorescent tube 1, and on reflectance coating 12, offer the perforate 12a corresponding with lamp plate 2, 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, lamp plate 2 (or flexible substrate) now with LED component 202 is arranged on the inner peripheral surface of fluorescent tube 1, again reflectance coating 12 is sticked at fluorescent tube inner peripheral surface, wherein the perforate 12a of reflectance coating 12 and lamp plate 2 one_to_one corresponding, so that lamp plate 2 is exposed to outside reflectance coating 12.

In the present embodiment, the reflectivity of reflectance coating 12 is at least greater than 85%, and reflecting effect is better, time generally more than 90%, preferably can reach more than 95%, to obtain more preferably reflecting effect.The length that reflectance coating 12 extends along fluorescent tube 1 circumference occupies 30% ~ 50% of whole fluorescent tube 1 circumference, and that is, along the circumferential direction of fluorescent tube 1, the proportion between the circumferential lengths of reflectance coating 12 and the girth of fluorescent tube 1 inner peripheral surface 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, and that is, lamp plate 2 both sides reflectance coating 12 has area identical in fact, as shown in figure 18.The material of reflectance coating can be PET, if add the composition such as strontium phosphate or barium sulfate, reflecting effect is better, and thickness is between 140 μm ~ 350 μm, and generally between 150 μm ~ 220 μm, effect is better.

In other embodiments, reflectance coating 12 also can adopt other forms to arrange, such as, along the circumferential direction of 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 the circumferential one or both sides of lamp plate 2, and the one-sided ratio occupying fluorescent tube 1 circumference of its circumference is identical with the present embodiment, as Figure 19 shows the structure of reflectance coating 12 and lamp plate 2 one side contacts.Or, 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, and then the lamp plate 2 with light source 202 is fixed on reflectance coating 12, reflectance coating 12 also can extend, as Figure 20 along fluorescent tube circumference in the both sides of lamp plate 2 respectively herein, or only extend, as Figure 21 along fluorescent tube circumference in the side of lamp plate 2.

In other embodiments, can reflectance coating 12 be only set, diffusion layer 13 is not set, as Figure 20, Figure 21 and Figure 22.

In other embodiments, reflectance coating 12 and lamp plate 2 one side contacts, with reference to Figure 19.Figure 19 illustrates reflectance coating 12 and lamp plate 2 one side contacts, and is provided with diffusion layer 13 simultaneously.Figure 21 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, does not arrange diffusion layer 13.

In other embodiments, the width of (soft) substrate can be widened, and the effect of reflectance coating 12 function can be played in the position widened.Preferably, (soft) substrate is 0.3 ~ 0.5 along the proportion between the length and the girth of described fluorescent tube 2 inner peripheral surface of the extension of fluorescent tube 2 circumference.As in the prior embodiments; can a coated circuit protecting layer outside (soft) substrate; circuit protecting layer can be a kind of ink material; there is the function increasing reflection; (soft) substrate widened is that starting point extends to circumference with light source, and the light of light source can make light more concentrated by the position widened.

In the embodiment of aforesaid Figure 18-22, on the inner peripheral surface of glass tube, all can coat diffusion coating, or part coats diffusion coating (having reflectance coating 12 part not to be coated with), but no matter be any mode, diffusion coating preferably all will be coated onto on the outer surface of end of fluorescent tube 1, to make the gluing between lamp holder 3 and fluorescent tube 1 more firm.

With reference to Figure 23, it is comprise the support 202b with groove 202a that LED component 202 can improve further, and is located at the LED grain 18 in groove 202a.Be filled with fluorescent material in groove 202a, fluorescent material covers LED grain 18, to play the effect of Color Conversion.In a fluorescent tube 1, LED component 202 has multiple, and multiple LED component 202 is arranged into row or multiple row, and often row LED component 202 is arranged along the axis (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 along the second sidewall 16 that fluorescent tube width is arranged, 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 the sidewall surrounding groove 202a.

In the present embodiment, each support 202b has a groove 202a, corresponding, each support 202b has two the first side walls, 15, two the second sidewalls 16.

Wherein, two the first side walls 15 are along fluorescent tube 1 length direction (Y-direction) arrangement, 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, surrounds groove 202a by the first side wall 15 and the second sidewall 16.In other embodiments, in a row light source, allow the arrangement or the extension mode that wherein have the sidewall of the support of one or more light source to adopt other.

When user is from the side of fluorescent tube, such as, when observing fluorescent tube in X direction, the second sidewall 16 can stop that the sight line of user directly sees LED component 202, to reduce the discomfort of particle.Wherein, the first side wall 15 " width along fluorescent tube 1 " extends, as long as it is substantially 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 also can be the various shapes such as fold-line-shaped, arc, waveform; Second sidewall 16 " length direction along fluorescent tube 1 " extends, as long as it is substantially 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 also can be the various shapes such as fold-line-shaped, arc, waveform.

In the present embodiment, the first side wall 15 is lower than the second sidewall 16, light can be made easily can to cross support 202b exhale, through the line space design that density is moderate, the discomfort of particle can not be produced in the Y direction, in other embodiments, if the first side wall is not less than the second sidewall, then often between row 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 be set to by inner surface 15a perpendicular to diapire, domatic is arranged so that light more easily passes domatic exhaling.Domaticly can comprise plane or cambered surface, adopt plane in the present embodiment, and the gradient of described plane be between 30 ° ~ 60 °.That is, the angular range between the diapire of plane and groove 202a is between 120 ° ~ 150 °.

In other embodiments, the gradient of plane can also between 15 ° ~ 75 °, and that is, the angular range between the diapire of plane and groove 202a is between 105 ° ~ 165 °.Or domatic can be the combination 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 of outermost two row LED component 202 (i.e. two row LED component 202 of adjacent lamp tube tube wall) is only wanted to have two the first side walls 15 of arranging along fluorescent tube 1 length direction (Y-direction) and two second sidewalls 16 of arranging 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 of arranging along fluorescent tube 1 length direction (Y-direction) and two second sidewalls 16 of arranging along fluorescent tube 1 width (X-direction), or each support 202b can have two the first side walls 15 of arranging along fluorescent tube 1 width (X-direction) and two second sidewalls 16 of arranging along fluorescent tube 1 length direction (Y-direction), or be staggered etc., as long as when user is from the side of 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 directly sees LED component 202, the discomfort of particle can be reduced.Identical with the present embodiment, for outermost two row light sources, allow the arrangement or the extension mode that wherein have the sidewall of the support of one or more light source to adopt other.

As can be seen here, when multiple LED component 202 is arranged into the row along fluorescent tube length direction, in the support 202b of multiple LED component 202, all second sidewalls 16 of the same side are positioned on same straight line along fluorescent tube width, namely the second sidewall 16 of homonymy forms the structure being similar to a face wall, to stop that the sight line of user directly sees LED component 202.

When multiple LED component 202 is arranged into the multiple row along fluorescent tube length direction, multiple row LED component 202 distributes along the width of fluorescent tube, and for being positioned at along the outermost two row light sources of fluorescent tube width, in the support 202b of the multiple LED component 202 often arranged, be 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 directly sees LED component 202, then just can reach the object of the discomfort reducing particle.And one of centre is arranged or several row LED component 202, requirement is not done in the arrangement of its sidewall, extension mode, can be identical with outermost two row LED component 202, can adopt other arrangement modes yet.

What needs pointed out is, in other embodiments, for same LED, " fluorescent tube has strengthening section structure ", " lamp plate employing flexible substrate ", " 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 comprising heat-conducting part ", " asymmetric lamp holder is the lamp holder comprising magnetic conductive metal piece ", " light source has support ", " power module ", in features such as " release can circuit ", one or more can be only included.In embodiments of the present invention, knownly comprise above-mentioned partial circuit feature, that is, above-mentioned feature can be made arbitrary permutation and combination, and for the improvement of lighting device.

Have in strengthening section structure at fluorescent tube, described fluorescent tube comprises main body and lays respectively at the end at described main body two ends, described end is respectively sheathed on lamp holder, described at least one, the external diameter of 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 (soft) substrate at lamp plate, to be connected by wire routing between described (soft) substrate and the output of described power supply or described (soft) substrate welds with between the output of described power supply.In addition, described (soft) substrate comprises the storehouse of a dielectric layer and at least one conductive layer.

Scribble in diffusion layer at fluorescent tube inner peripheral surface, the constituent of described diffusion coating comprises at least one in calcium carbonate, calcium halophosphate activated by antimony andmanganese and aluminium oxide, and thickener and ceramics activated carbon, and thickener and ceramics activated carbon.In addition, described diffusion layer also can be diffusion barrier sheet and covers on outside light source.

Scribble in reflecting layer at tube inner wall, described light source can be arranged on reflecting layer, be arranged at side in the perforate of described reflecting layer or in described reflecting layer.

In burner design, in burner design, lamp holder can comprise insulation tube and heat-conducting part, and wherein PUR can be filled a part for accommodation space or be filled full accommodation space.Or lamp holder comprises insulation tube and magnetic conductive metal part, wherein, magnetic conductive metal part can be positive circular or anon-normal circular, and can by arranging emptying aperture structure or scoring structure reduces the contact area with insulation tube.In addition, in insulation tube also can by arranging support portion, protuberance strengthens the support of 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 conforms with the regulations, because the length of fluorescent tube has prolongation, the interval be attached between the LED component on the lamp plate of tube inner wall can be strengthened accordingly, can radiating efficiency be improved like this, extend the life-span of LED component).

In LED component design, described LED component comprises the support with groove tube, and is located at the LED grain in described groove; Described support has the first side wall along described fluorescent tube length direction arrangement, and along the second sidewall that described fluorescent tube width is arranged, described the first side wall is lower than described second sidewall.

Although the present invention discloses as above, the present invention is not defined in 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

1. a straight tube lighting device, is characterized in that, comprises:

One fluorescent tube is the peripheral framework of elongate;

2. straight tube lighting device according to claim 1, is characterized in that:

The electric connection system of this substrate and this first drive circuit, this second drive circuit is through welding.

3. straight tube lighting device according to claim 1, is characterized in that:

Those at least one light emitting diodes can be arranged on the both sides up and down of this substrate.

4. straight tube lighting device according to claim 1, is characterized in that:

This substrate comprises single conductive layer and single dielectric layer.

5. straight tube lighting device according to claim 1, is characterized in that:

This switch system receives this first signal, and switches on and be electrically connected between an input of this second drive circuit and this light-emitting diode (LED) module of electrically connect, and this light emitting diode is coupled to an output of this second drive circuit.

6. straight tube lighting device according to claim 1, is characterized in that:

This switch is coupled to this light emitting diode, and switches on an output of this second drive circuit of electric connection and be electrically connected between this first drive circuit, and this second drive circuit is coupled to this first drive circuit.

7. straight tube lighting device according to claim 1, is characterized in that:

This second drive circuit comprises a diode, a transistor switch and an Inductive component; This Inductive component is connected with this transistor switch, and the anode of this diode is electrically connected the tie point of this transistor switch and this Inductive component, and the negative electrode of this diode is as an output of this second drive circuit.

8. straight tube lighting device according to claim 1, is characterized in that:

This second drive circuit comprises a transistor switch, a switch and an Inductive component; This transistor switch is connected with this switch, and one end of this Inductive component is electrically connected the tie point of this transistor switch and this switch, and the other end of this Inductive component is as an output of this second drive circuit.

9. straight tube lighting device according to claim 1, is characterized in that:

This first drive circuit comprises a wave filter, and the signal after this wave filter system filtering one rectification is to produce this first signal.

10. straight tube lighting device according to claim 1, is characterized in that:

This first drive circuit comprises a capacitor in order to filtering, or this light emitting diode is in parallel with a capacitor.

11. 1 kinds of straight tube lighting devices, is characterized in that, comprise:

One fluorescent tube is the peripheral framework of elongate;

One power module, comprises a rectification unit, one first drive circuit, one second drive circuit, a switch and a circuit substrate; Described rectification unit is electrically connected this first pin and this second pin, and is suitable for described AC signal to be rectified into DC signal; Described first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides one first signal to arrive described light-emitting diode (LED) module through one first current path; Described second drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a secondary signal to arrive described light-emitting diode (LED) module through one second current path; Described switch selectively switch on allow electric current along described first current path by and this second drive circuit of bypass, and allow between electric current passes through along described second current path; And this circuit substrate has been this first drive circuit of carrying and this second drive circuit at least one, and at one end have one first pad, this first pad and this first drive circuit or this second drive circuit are electrically connected; And

12. straight tube lighting devices according to claim 11, is characterized in that:

This perforation is the breach at those weld pads wherein edge of a weld pad.

13. straight tube lighting devices according to claim 11, is characterized in that:

This flexible base plate comprises single conductive layer and single dielectric layer.

14. straight tube lighting devices according to claim 11, is characterized in that:

15. straight tube lighting devices according to claim 11, is characterized in that:

16. straight tube lighting devices according to claim 11, is characterized in that:

17. 1 kinds of straight tube lighting devices, comprise:

One fluorescent tube is the peripheral framework of elongate;

The feature of this straight tube lighting device is also to comprise:

18. straight tube lighting devices according to claim 17, is characterized in that:

The electric connection system of this flexible base plate and this second drive circuit and this support both-end power-on circuit is through welding at least one pad.

19. straight tube lighting devices according to claim 17, is characterized in that:

20. straight tube lighting devices according to claim 17, is characterized in that:

This support both-end power-on circuit comprises one first diode, one second diode and two capacitors; One negative electrode of this first diode is electrically connected this light emitting diode, and a negative electrode of its anode and this second diode is electrically connected and couples with one end of this two capacitor respectively; The other end of this two capacitor is electrically connected the 3rd pin and the 4th pin respectively, has been to prevent this light-emitting diode (LED) module to meet accident short circuit; And when this switch is electrically connected this support both-end power-on circuit, an anode of this second diode is electrically connected this switch.

21. straight tube lighting devices according to claim 17, is characterized in that:

This second drive circuit comprises a diode, a transistor switch and an Inductive component; This diode is connected with this transistor switch, and one end of this Inductive component is electrically connected the tie point of this diode and this transistor switch, and this switch is electrically connected the other end of this Inductive component when this switch is electrically connected this second drive circuit.

22. straight tube lighting devices according to claim 17, is characterized in that: