CN205244929U

CN205244929U - Straight tube lighting device

Info

Publication number: CN205244929U
Application number: CN201520611734.3U
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: 2016-05-18
Anticipated expiration: 2025-08-13
Also published as: CN105465641A

Abstract

Straight tube lighting device contains: a fluorescent tube, two lamp holders cup joint respectively in the both ends of this fluorescent tube, a base plate is located this fluorescent tube, and contains an at least conducting layer and an at least dielectric layer, an emitting diode module contains an at least emitting diode and sets up on this base plate, and a power module, contain a rectifier unit, 1 the 1st drive circuit, 1 the 2nd drive circuit and a switch, this rectifier unit of a drive circuit electric connection, it provides a first signal through this emitting diode module of 1 the 1st current path arrival to be suitable for. This rectifier unit of the 2nd drive circuit electric connection, it provides a second signal through this emitting diode module of 1 the 2nd current path arrival just to be suitable for, this switch is suitable for the switching to pass through and the 2nd drive circuit of bypass with an allowable current edge current path, or passes through along the 2nd current path, and this dielectric layer is set up respectively with this emitting diode has physical contact with this conducting layer.

Description

Straight tube lighting device

The application requires the priority of the formerly Chinese patent application of following 14 submission Patent Office of the People's Republic of China, and its full content is by reference in conjunction with in this application. The applying date, application number and the denomination of invention of described 14 Chinese patent application 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 fluorescent 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 fluorescent 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 fluorescent 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 fluorescent 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 fluorescent 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 fluorescent 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 fluorescent 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 lamp " 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 fluorescent lamp " on June 29th, 14.2015.

Technical field

The utility model is about lighting device, especially about a kind of straight tube lighting device.

Background technology

In existing lighting device, most of remaining using fluorescent tube as luminescence unit of adopting. With respect 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,, on the basis of circuit that does not change original lighting device, directly replaces traditional fluorescent tube with light-emitting diode lamp tube. Another is ballast bypass type light-emitting diode lamp tube, saves traditional ballast, and directly civil power is received to light-emitting diode lamp tube on circuit. The latter is applicable to newly-decorated environment, adopts drive circuit and the light-emitting diode lamp tube of new lighting device.

Light-emitting diode lamp tube on market is not ballast compatible type now, is exactly ballast bypass type. For terminal use, existence cannot match light emitting diode illuminating apparatus the problem of appropriate circuitry, has therefore increased the inconvenience that uses and install.

Utility model content

The problem that the utility model solves is the installation that how to facilitate lighting device.

For addressing the above problem, the utility model provides a kind of straight tube lighting device, comprises:

One fluorescent tube is the peripheral framework of elongate;

Two lamp holders, be socketed on respectively the two ends of described fluorescent tube, on described two lamp holders, be 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 that at least flowing through between one of them of at least one of them and described three pin and described four pin of AC signal in described the first pin and described the second pin is provided;

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 is arranged on described 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 the first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a first signal to arrive described light-emitting diode (LED) module through one first current path; Described the 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 be suitable for switching with allow electric current along described the first current path by and this second drive circuit of bypass, or pass through along described the 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 the first drive circuit, described the second drive circuit, described at least one light emitting diode is for according to described first signal or described secondary signal and luminous, and this dielectric layer and this light emitting diode are set up respectively with this conductive layer and have physical contact.

Optionally, the electric connection of this substrate and this first drive circuit, this second drive circuit system sees 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 between an input and this light-emitting diode (LED) module of electrically connect that is electrically connected this second drive circuit, 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 this wave filter is that signal after filtering one rectification is to produce this first signal.

Optionally, this first drive circuit comprises a capacitor for filtering, or this light emitting diode and a Parallel-connected Capacitor.

For addressing the above problem, the utility model also provides another kind of straight tube lighting device, comprises:

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 the first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a first signal to arrive described light-emitting diode (LED) module through one first current path; Described the 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 is suitable for switching to allow electric current to pass through and this second drive circuit of bypass along described the first current path, or passes through along described the second current path; And this circuit substrate is in order to carry this first drive circuit and at least one of this second drive circuit, 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 has one second pad to weld with this first pad, this second pad has at least two weld pads, and this second pad and this first pad be at least one perforation place welding in those weld pads, 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 is arranged on described flexible base plate and is suitable for seeing through described the second pad, the first pad and at least one conductive layer and described the first drive circuit or described the second drive circuit electric connection, described at least one light emitting diode is for according to described first signal or described secondary signal and luminous, and this dielectric layer and this light emitting diode are set up respectively with this conductive layer and have physical contact.

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

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

For addressing the above problem, the utility model provides another straight tube lighting device, comprises:

One fluorescent tube is the peripheral framework of elongate;

Two lamp holders, are socketed on respectively the two ends of described fluorescent tube, on 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, it has been luminous comprising at least one light emitting diode;

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

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 respectively and this conductive layer physical contact, 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 and be electrically connected this second drive circuit and be electrically connected between this support both-end power-on circuit, when wherein this switch is electrically connected this support both-end power-on circuit, allow electric current 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 this switch allow while being electrically connected this second drive circuit electric current along one second current path through this first drive circuit, this second drive circuit and this light-emitting diode (LED) module.

Optionally, the electric connection of this flexible base plate and this second drive circuit and this support both-end power-on circuit system sees through the 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 respectively the 3rd pin and the 4th pin, has been to prevent the short circuit that meets accident of this light-emitting diode (LED) module; And in the time that 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 in the time that this switch is electrically connected this second drive circuit.

Compared with prior art, the technical solution of the utility model has the following advantages:

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

Brief description of the drawings

Fig. 1 is the stereogram that can be used for the LED lamp of the utility model embodiment;

Fig. 2 is the three-dimensional exploded view that can be used for the LED lamp of the utility model embodiment;

Fig. 3 is the end construction that can be used for fluorescent tube in the LED lamp of the utility model embodiment;

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

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

Fig. 6 is the structure that can be used for power supply in the LED lamp of the utility model embodiment;

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

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

Fig. 9 is the three-dimensional cutaway view of the all-plastic lamp holder (inside having magnetic conductive metal part and PUR) of Fig. 8;

Figure 10 is the three-dimensional structure diagram on the inner peripheral surface of the utility model embodiment insulation tube with a support portion and a protuberance;

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

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

Figure 13 is the schematic diagram that the utility model embodiment magnetic conductive metal part has at least one impression structure structure;

After Figure 14 is the insulation tube and fluorescent tube combination of Figure 10, along the cutaway view of fluorescent tube axial direction;

Figure 15 is that the utility model embodiment magnetic conductive metal part is a non-circular loops composition, along the cutaway view of fluorescent tube axial direction;

Figure 16 is that in the utility model embodiment LED lamp, bendable substrate is that lamp plate gets over the structure that strengthening section place and power output end are welded to connect;

Figure 17 is the layer structure of double-deck flexible base plate in the utility model embodiment LED lamp;

Figure 18 is fluorescent tube cutaway view in axial direction in the utility model embodiment LED lamp;

Figure 19 is the utility model embodiment LED light fixture reflectance coating and lamp plate one side contacts cutaway view in axial direction;

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

Figure 21 is another variation tool reflectance coating of the utility model embodiment LED lamp and lamp plate one side contacts cutaway view in axial direction;

Figure 22 is fluorescent tube cutaway 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 the utility model embodiment lighting source;

Figure 24 is the circuit diagram of the LED fluorescent tube that can share with the utility model.

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

Figure 26 is the electrical block diagram in the time that described switch 635 is connected to K1 point in the utility model embodiment;

Figure 27 is the electrical block diagram in the time that described switch 635 is connected to K2 point in the utility model embodiment;

Figure 28 A-28B is respectively the electrical block diagram of a kind of straight tube lighting device that comprises booster circuit in the utility model embodiment;

Figure 29 A-29B is respectively the electrical block diagram of a kind of straight tube lighting device that comprises reduction voltage circuit in the utility model embodiment;

Figure 30 is the circuit diagram that in the utility model embodiment, 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 utility model;

Figure 32 A-32C is the connecting circuit schematic diagram of LED assembly in the light-emitting diode (LED) module 630 of the utility model embodiment;

Figure 33 A-33C is the trace-diagram of the LED assembly of corresponding diagram 32A-32C circuit diagram in the utility model embodiment.

Detailed description of the invention

Inventor of the present utility model, through creative work, on the basis of glass lamp, has proposed a kind of straight tube lighting device, to solve the problem of mentioning in background technology.

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

For above-mentioned purpose of the present utility model, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, specific embodiment of the utility model is described in detail.

The straight tube lighting device that can share with the utility model, with reference to Fig. 1-2, can comprise: fluorescent tube 1, be located at the lamp plate 2 in fluorescent tube 1, and be socketed on respectively two lamp holders 3 at fluorescent tube 1 two ends. Wherein fluorescent tube 1 can be the peripheral framework of elongate, adopt plastics fluorescent tube or glass lamp, the present embodiment adopts the glass lamp of tool strengthening section, to avoid traditional glass fluorescent tube easily to break and the electric shock accidents causing because of electric leakage that breaks, and easily aging problem of plastics fluorescent tube.

The mode of fluorescent tube strengthening can use chemical mode or physics mode does secondary operations strengthening to glass. The general principle of chemical mode is to improve the intensity of glass with the composition that changes glass surface, and its method is that first Na ion or the K ion with other alkali metal ion and surface layer of glass exchanges, and makes surface form ion exchange layer. When being cooled to after normal temperature, glass is in internal layer tension, the state of outer pressurized, thus reach 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 temperature province between softening point and the transition point of glass, glass containing Na2O or K2O is invaded in the fused salt of lithium, make the Na ion in glass or exchange with the Li Ion Phase in the little fused salt of their radiuses, then be cooled to room temperature, because the top layer containing Li ion is from different containing Na ion or K ion inner layer expansion coefficient, surface produces residual pressure and strengthens; Meanwhile, when glass neutralization contains the composition 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, with than top layer basic ion (as Na ion) also the monovalent cation of larger ionic radius (as K ion) and Na ion do ion-exchange, make K ion enter the method on top layer. For example 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, make Na+ ion ooze out with sulfurous acid and react from surface layer of glass, thereby superficial layer becomes rich SiO2 layer, its result, because top layer becomes low expansion glass, produces compression when cooling.

4, surface crystallization method

Surface crystallization method is different from high temperature modification ion-exchange, only forms low-expansion microcrystal on top layer by heat treatment, thereby makes it the method for strengthening.

5, sodium metasilicate reinforcement

Sodium metasilicate reinforcement is in the aqueous solution of sodium metasilicate (waterglass), more than 100 degrees Celsius, under several atmospheric pressure, to process, thereby obtains being difficult to scratch the high strength glass on top layer.

Physics mode does and strengthens glass, can include but not limited to, uses the mode of coating or the structure of change 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 state or gaseous state coating in the time of coating. Change the structure of article, for example, do structural strengthening design in the part of easily breaking. No matter be that chemical mode or physics mode are not limited to single mode and implement above, can mix any in physics mode or in chemical mode and do any matched combined.

The present embodiment explains with structure-reinforced design, and described fluorescent tube 1 comprises main body 102 and the end 101 that lays respectively 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 that two ends 101 are set is all less than the external diameter of main body 102. Particularly, the two ends of fluorescent tube 1 are by strengthening section processing, and end 101 forms strengthening section structure, lamp holder 3 is enclosed within on the end 101 after strengthening, can make like this difference of lamp holder 3 external diameters and fluorescent tube main body 102 external diameters diminish, even completely equal, lamp holder 3 external diameters equate with main body 102 external diameters. The benefit arranging is like this, in transportation, packaging support can only not contact lamp holder 3, it can contact lamp holder 3 and fluorescent tube 1 simultaneously, make whole lighting source stressed evenly, and can not make lamp holder 3 become unique stress point, avoid position that lamp holder 3 is connected with lamp tube end 101 due to stressed concentrated breaking, improve the quality of product, and have effect attractive in appearance concurrently.

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

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

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

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

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

Continue with reference to Fig. 2 and in conjunction with Fig. 6, lamp plate 2 is provided with light emitting diode, light emitting diode comprises that some LED assemblies 202 (are understandable that, in the utility model embodiment, LED assembly also can be expressed as light emitting diode, and all LED assemblies 202 can be expressed as light emitting diode group), in lamp holder 3, be provided with power module 5, between LED assembly 202 and power module 5, pass through lamp plate 2 electrical communication. In other explanations, light emitting diode (containing LED assembly 202) also can be referred to as circuit of LED module with power module 5.

Wherein, power module 5 can be single body (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 (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 processing, power supply is preferentially chosen as single body, and is located in the corresponding lamp holder 3 in end 101 after strengthening.

No matter be single body or two individuality, the generation type of power module can have Mutiple Choice, for example, it can be the module after a kind of embedding moulding, particularly, use a kind of silica gel (thermal conductivity factor >=0.7w/mk) of high heat conduction, by mould, power supply module is carried out to embedding moulding and obtain, the power module that this mode obtains has advantages of that high insulation, height dispel the heat, profile is more regular, and can coordinate with other structural members easily. Or, also can, for not doing casting glue moulding, directly exposed power module assembly be embedded in to 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 in conjunction with Fig. 4-6, one end of power module 5 has male plug 501 conventionally, and the other end has metal ferrule 502, and the end of lamp plate 2 is provided with female plug 201, and the conductive pin that lamp holder 3 is 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 mode and conductive pin that physical contact etc. can reach electric connection are electrically connected. Now male plug 501 and female plug 201 are equivalent to adapter, for power module 5 and lamp plate 2 are electrically connected. When metal ferrule 502 insert hollow conductive pin 301 interior after, impact hollow conductive pin 301 through outside stamping tool, make hollow conductive pin 301 that slight distortion occur, thereby fix the metal ferrule 502 on power module 5, and realize electrical connection. Lamp holder 3 is provided with the air-vent (also other shape, as Pinhole-shaped, Xiao Lianzhuan, waits can realize and breathe freely) of WIFI shape.

When energising, electric current successively LED driving circuit, male plug 501 and the female plug 201 in the hollow conductive pin 301 by LED fluorescent tube one end, metal ferrule 502, power module 5 arrives lamp plate 2, and arrives LED assembly 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 be left side lamp holder 3 length dimension 30%～80%. The length dimension of better right side lamp holder 3 be left side lamp holder 3 length dimension 2/3. 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 being provided with in lamp holder 3 is illustrated as shown in figure 24 with the connecting circuit of lamp plate 2 and LED assembly 202.

Above-mentioned power module and LED module are all included in described lamp. LED lamp each side there is a lamp holder (not shown), be socketed on the two ends of fluorescent tube. Refer to shown in Fig. 2, on left side lamp holder 3, there is 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 respectively 4 metal ferrules 502, that is, and and the first pin A1 of a side, the second pin A2; And the 3rd pin B1 of opposite side, the 4th pin B2.

As shown in figure 24. LED lamp 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 grown), the heat of power module can directly not affect LED module 630 like this. Part or all of electric capacity in power module is arranged at the shorter right side lamp holder 3 of length, and setting can make described electrochemical capacitor avoid, because power device produces the impact of higher temperature (overheated) on it in the time working, improving its reliability like this; Also can be because described electrochemical capacitor separates on rectification unit and filter unit space, thus the problem of electromagnetic interference solved.

LED module 630 comprises electric capacity 635, and electric capacity 635 can be electrochemical capacitor, may have the generation of rosin joint in when welding, and range estimation is difficult to detect (lamp assemble after, described assembly is built-in interior with lamp holder). Due to electrochemical capacitor 635 rosin joints, can cause in LED module 630 and diminish in the equivalent capacitance value of LED assembly 202 parallel connections. Can make like this amplitude of the concussion of the operating current of LED assembly 202 become large, i.e. the larger brightness that has of LED assembly 202 changes. By lightening LED lamp, at fluorescent tube annex, photo resistance is set, can judge by the information of sampling photo resistance whether electrochemical capacitor 635 has rosin joint.

Rectification unit 110 is electrically connected the first pin A1, the second pin A2 of described LED lamp, in order at least one of them a AC rectification that couples described the first pin A1 and described the second pin A2 is become to 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 electronic building brick that is equipped with of printed circuit board. 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 in 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, can effectively reduce the printed circuit board whole height that assembly is set.

At 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 limit, also can be in the same side or partly or entirely in opposite side.

Refer to Fig. 4, because lamp holder 3 is provided with air-vent, can make the heat that these electronic building bricks in lamp holder produce carry out heat loss through convection through air-vent. Preferably, the material of fluorescent tube is glass. The heat conduction of glass material is better than plastic material. When LED assembly 202 is affixed on tube inner wall, LED assembly 202 the produced heat of working can see through glass tube conduction and dispel the heat, even LED assembly 202 produce heat also can see through air-vent simultaneously and carry out right heat radiation.

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

An 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. Above-mentioned diode D1 and the tie point of D2 are electrically connected described the 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. Above-mentioned diode D3 and the tie point of D4 are electrically connected described the second pin A2.

Rectification unit 110 can be also full-wave rectifying circuit or the half-wave rectifying circuit of other kinds, and does not affect the function that the utility model scheme is wanted to reach.

In Figure 24, filter unit 120 comprises capacitor C 1, C2 and an inductance L 1. Described capacitor C 1 and described diode D3 and the D4 parallel connection of connecting. And described capacitor C 2 is connected with described inductance L 1, then in parallel with described capacitor C 1. Described filter unit 120 receives the described DC signal after described rectification unit 110 rectifications, 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 can be also the filter circuit that other can filtering radio-frequency component, and does not affect the function that the utility model is wanted to reach.

In Figure 24, LED module 630 comprises inductance 633, at least one LED assembly 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 lamp holder that length dimension grows), and LED assembly 202 is arranged on lamp plate. Diode 632 is connected with transistor switch 631, then in parallel with the capacitor C 2 of filter unit 120. One end of the anode electric connection inductance 633 of diode 632 (, tie point with described transistor switch 631), the anode of its negative electrode and described at least one LED assembly 202 is electrically connected, and the negative electrode of described at least LED assembly 202 is electrically connected the other end of described inductance 633. The branch circuit parallel connection forming at least one LED assembly 202 has electric capacity 634 and 635.

Transistor switch 631 received pulse signals, 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 being produced according to the electric current of described at least LED assembly 202 by a PWM controller (not shown). In the time of transistor switch 631 conducting, the electric current of the described inductance 633 described transistor switch 631 of flowing through. In the time that described transistor switch 631 ends, the electric current of inductance 633 through diode 632 flow through described in LED assembly 202 at least, make it luminous.

In Figure 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 assembly 202 can be single string or the light emitting diode of going here and there more, with the different power demand of correspondence, provides required illumination.

The utility model provides a kind of straight tube lighting device, and it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on respectively the two ends of described fluorescent tube, on 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 is arranged on described 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 AC signal to be rectified into DC signal. Described the first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a first signal to arrive described light-emitting diode (LED) module through one first current path. Described the 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 the first current path by and this second drive circuit of bypass, and allow between electric current passes through along described the second current path. This at least one light emitting diode is suitable for seeing through described at least one conductive layer and described the first drive circuit, described the second drive circuit are electrically connected. Described at least one light emitting diode has been according to described first signal or described secondary signal and luminous. And this dielectric layer and this light emitting diode are set up respectively with this conductive layer physical contact. The description of the embodiment of the structure of aforesaid substrate will be comprised in the description referring to Figure 16-17.

The utility model provides again a kind of straight tube lighting device, and it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on respectively the two ends of described fluorescent tube, on 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 AC signal to be rectified into DC signal. Described the first drive circuit is electrically connected described rectification unit, receives described DC signal and provides a first signal to arrive described light-emitting diode (LED) module through one first current path. Described the 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 is suitable for switching to allow electric current to pass through and this second drive circuit of bypass along described the first current path, or passes through along described the second current path. This circuit substrate has been this first drive circuit of carrying and at least one of this second drive circuit, 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 has one second pad to weld with this first pad, this second pad has at least two weld pads, and this second pad and this first pad be at least one perforation place welding in those weld pads, and this flexible base plate comprises at least one conductive layer and at least one dielectric layer. This at least one light emitting diode is arranged on described flexible base plate and is suitable for seeing through described the second pad, the first pad and at least one conductive layer and described the first drive circuit or described the second drive circuit electric connection. Described at least one light emitting diode is for according to described first signal or described secondary signal and luminous. And this dielectric layer and this light emitting diode are set up respectively with this conductive layer physical contact. 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 utility model provides a kind of straight tube lighting device again, and it comprises a fluorescent tube compendiously; Two lamp holders, are socketed on respectively the two ends of described fluorescent tube, on 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, it has been luminous comprising at least one light emitting diode; 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 AC signal to be rectified into DC signal. Described the first drive circuit is electrically connected described rectification unit, and is suitable for receiving described DC signal. Described the second drive circuit is coupled to described the first drive circuit. Described support both-end power-on circuit is coupled to the 3rd pin and the 4th pin, to allow described external power source to provide AC signal to flow through between this first pin or this second pin and the 3rd pin or the 4th pin.

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 respectively and this conductive layer physical contact, 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 to switch on be electrically connected this second drive circuit and be electrically connected between this support both-end power-on circuit, when wherein this switch is electrically connected this support both-end power-on circuit, allow electric current 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 this switch allow while being electrically connected this second drive circuit electric current along one second current path through this first drive circuit, this second drive circuit and this light-emitting diode (LED) module. 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 utility model. As shown in figure 25, described straight tube lighting device 100 comprises: rectification circuit or unit 110, the 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 of being arranged on this substrate has been luminous. Straight tube lighting device 100 also comprises a power module 5, and wherein this power module 5 comprises rectification unit 110, the first drive circuit 120, this second drive circuit, and switch 635. And power module 5 can more comprise supports both-end power-on circuit 140.

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

Above-mentioned rectification unit 110, the 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, on the lid of left side, there is this first pin A1 and this second pin A2, and on the lid of right side, there is one the 3rd pin B1 and one the 4th pin B2. This first pin A1 and this second pin A2 perpendicular to this left side lid one surface and be conductor; Similarly, the 3rd pin B1 and the 4th pin B2 perpendicular to this right side lid 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, for example, in order at least one of them a AC rectification that couples described the first pin A1 and described the second pin A2 is become to approximate (pulsed, a pulsating) direct current. Described the 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, in order to alternating current is carried out full-wave rectification and produces direct current. An anode of described diode D3 is electrically connected one end of described the 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 the first drive circuit 120. Above-mentioned diode D1 and the tie point of D3 are electrically connected the first pin A1. An 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. Above-mentioned diode D2 and the tie point of D4 are electrically connected described the second pin A2.

Described rectification circuit 110 can be also full-wave rectifying circuit or the half-wave rectifying circuit of other kinds, and does not affect the function that the utility model is wanted to reach.

Described the first drive circuit 120 has been generation/output one first signal. In concrete enforcement, described the first drive circuit 120 can be coupled to rectification circuit 110 and comprise a wave filter. Described wave filter can be that the signal after described rectification circuit 110 rectifications is carried out to filtering, to produce the described first signal that is DC waveform. In concrete enforcement, it has been filtering that described the first drive circuit 120 can comprise a capacitor, or described light emitting diode 202 is direct and a Parallel-connected Capacitor, and carries out filtering by described capacitor.

Can comprise in the concrete enforcement that a capacitor has been filtering at above-mentioned described the first drive circuit, as shown in figure 25, described the first drive circuit 120 can comprise capacitor C 1, C2 and an inductance L 1. Described capacitor C 1 and described diode D2 and the D4 parallel connection of connecting. And described capacitor C 2 is connected with described inductance L 1, then in parallel with described capacitor C 1. Described the first drive circuit 120 receives the direct current after described rectification circuit 110 rectifications, and radio-frequency component in filtering direct current. Through the filtered direct current of above-mentioned the first drive circuit 120, its waveform is a level and smooth DC waveform. Described the first drive circuit 120 can be also the filter circuit that other can filtering radio-frequency component, and does not affect the function that the utility model is wanted to reach.

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

In specific 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, can make this first drive circuit 120 play good EMI Filtering effect.

Described light-emitting diode (LED) module 630 comprises a substrate (not shown) and is arranged at least one light emitting diode 202 on described substrate has been according to described first signal or described secondary signal and luminous. Described substrate and described the first drive circuit 120, described the 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 respectively on described conductive layer. And described lighting device 100 comprises one first current path and arrives this light-emitting diode (LED) module 630 and this second drive circuit of bypass from this first drive circuit 120, also comprises one second current path and arrives this light-emitting diode (LED) module 630 from this second drive circuit. This switch 635, is suitable for switching to allow electric current to pass through along this first current path, or passes through along this second current path.

The advantage of the position that switch 635 is set up is as shown in Figure 25, switch 635 is easily by the switching that input voltage is controlled of the extra controller of ㄧ, is arranged between light-emitting diode (LED) module 630 and the first drive circuit 120, is subject to the output signal impact of the first drive circuit 120 and is difficult for controlling its switching by extra controller if avoid.

In this preferred embodiment, straight tube lighting device 100 also comprises supports both-end power-on circuit 140 to be electrically connected the 3rd pin B1 and the 4th pin B2, powers to light emitting diode 202 to allow straight tube lighting device 100 receive power supply input between its two ends. It is noted that, the embodiment of straight tube lighting device of the present utility model does not also require necessary this support both-end power-on circuit 140 of use, 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 a 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 of this capacitor C3 and this capacitor C4 and C5 are electrically connected, and this capacitor C4 and C5 are electrically connected respectively the 3rd pin B1 and this four pin B2. 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 Figure 25, this second drive circuit comprises a diode 632, a 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 in the time that 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, and K2 end is electrically connected to the first drive circuit 120 after connecting with one end of described transistor switch 631. The other end of inductance 633 is connected with the tie point that diode 632 is connected with transistor switch 631.

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 being produced according to the electric current of described at least one light emitting diode 202 by a PWM controller (not shown). In the time that 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 that flows through LED module 630, realize the electric current substantially constant that flows through LED module, thereby the brightness of its LED is evenly constant, can delay like this light decay of LED, maximized the service life of LED.

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 switching function is also applicable to the utility model.

In the present embodiment, described switch 635 also can pass through wire jumper, and during as use, connect reserved port by external wire and select K to be connected with K1 or K2, or as modes such as rotary switches, and do not affect the function that the utility model is wanted to reach. It all belongs in protection domain of the present utility model.

Below put up with described switch, be suitable for switching to allow electric current to pass through along described the first current path, or the principle of passing through along described the second current path describe:

(1) in the time that described switch 635 connects K1 contact

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

(2) in the time that change-over switch 635 connects K2 contact

As shown in figure 27, by described the first pin A1 and described the 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 by another outflow. For example, alternating current from the first pin A1 and described second one of them end of pin A2 L1, the light-emitting diode (LED) module 630, final by described the 3rd pin B1 and described the 4th one of them outflow of pin B2 through the K2 contact of change-over switch 635 through rectification circuit 110, the first drive circuit 120.

In concrete enforcement, in the time that 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. For example, flow through the electric current of transistor switch 631 also do not reach the current value of setting within certain default time time when detection, be judged to be zero load, thereby trigger no-load protective circuit.

Switch and decide electric current along the second current path by described switch 635, arrive described light-emitting diode (LED) module 630 via described the second drive circuit; Or electric current along the first current path through described the 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.

In order to make described straight tube lighting device can adapt to different circuit normally to work, can arrange accordingly described switch 635 and described the second drive circuit, to comprise booster circuit (boost circuit), reduction voltage circuit (buck circuit) etc. Below will describe with regard to the above-mentioned specific embodiment that comprises booster circuit, reduction voltage circuit or other circuit respectively.

(1) embodiment that comprises booster circuit

Outside above-mentioned rectification circuit 110, the 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 the second drive circuit and comprises a booster circuit. This booster circuit comprises a diode 632, a transistor switch 631, an Inductive component 633 and a capacitor C (inessential). Described diode 632 is in parallel with described transistor switch 631 after connecting with capacitor C, then jointly connects with described inductance 633. Should be noted at embodiment of the present utility model to select this first drive circuit to comprise a capacitor C1 (in position (1)) for filtering, 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 of described switch 635 and this first drive circuit 120 are electrically connected, and the other end switches on and an input of this second drive circuit (for example, at inductor 633) be electrically connected and and this light-emitting diode (LED) module 630 (light emitting diode 202) be electrically connected between. When described switch 635 is switched to while being electrically connected with this light emitting diode 202, be that described light emitting diode 202 is powered by the first signal Vin of described the first drive circuit 120, select to be switched to the first current path from described the first drive circuit 120 to described light-emitting diode (LED) module 630. When described switch 635 is switched to while being electrically connected with the inductor 633 of this second drive circuit, for selecting to be switched to the second current path from described the second drive circuit to described light-emitting diode (LED) module 630. Wherein, see through described transistor switch 631 in conducting or cut-off (signal being received by its gate is controlled), by this second drive circuit, this light-emitting diode (LED) module 630 is powered. And capacitor C can play to light emitting diode 202 effect of voltage stabilizing.

Similarly, Figure 28 B illustrates another embodiment that comprises 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 (tie point of for example 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 is switched to while being electrically connected with the tie point of capacitor C and diode 632, for selecting to be switched to the second current path from described the second drive circuit to described light-emitting diode (LED) module 630. Wherein, see through described transistor switch 631 in conducting or cut-off, by this second drive circuit, this light-emitting diode (LED) module 630 is powered. And capacitor C can play to light emitting diode 202 effect of voltage stabilizing. In the time that this switch 635 is switched to this first drive circuit 120 (containing capacitor C1) electric connection, powered for described light emitting diode 202 by described the first drive circuit 120, select to be switched to the first current path from described the first drive circuit 120 to described light-emitting diode (LED) module 630. The advantage of the position that in Figure 28 B, switch 635 is set up is, switch 635 is easily controlled by the input voltage of an extra controller output (tie point of for example capacitor C and diode 632) switching on this second drive circuit and is electrically connected, and avoids the output signal that is subject to the first drive circuit 120 affect and be difficult for controlling its switching by extra controller.

(2) embodiment that comprises reduction voltage circuit

Outside above-mentioned rectification circuit 110, the 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 the 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 after connecting with capacitor C, then jointly connects with transistor 634. Should be noted at embodiment of the present utility model to select this first drive circuit to comprise a capacitor C1 (in position (1)) for filtering, 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 of described switch 635 and this first drive circuit 120 are electrically connected, and the other end switches on and an input of this second drive circuit (for example, at transistor 634) be electrically connected and and this light-emitting diode (LED) module 630 (light emitting diode 202) be electrically connected between. When described switch 635 is switched to while being electrically connected with this light emitting diode 202, be that described light emitting diode 202 is powered by the first signal Vin of described the first drive circuit 120, select to be switched to the first current path from described the first drive circuit 120 to described light-emitting diode (LED) module 630. When described switch 635 is switched to while being electrically connected with the transistor 634 of this second drive circuit, for selecting to be switched to the second current path from described the second drive circuit to described light-emitting diode (LED) module 630. Wherein, see through described transistor switch 631,634 in conducting or cut-off (signal being received by its gate is controlled), by this second drive circuit, this light-emitting diode (LED) module 630 is powered. And capacitor C can play to light emitting diode 202 effect of voltage stabilizing.

Similarly, Figure 29 B illustrates another embodiment that comprises 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 (tie point of for example 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 is switched to while being electrically connected with the tie point of capacitor C and inductor 633, for selecting to be switched to the second current path from described the second drive circuit to described light-emitting diode (LED) module 630. Wherein, see through described transistor switch 631,634 in conducting or cut-off, by this second drive circuit, this light-emitting diode (LED) module 630 is powered. And capacitor C can play to light emitting diode 202 effect of voltage stabilizing. In the time that this switch 635 is switched to this first drive circuit 120 (containing capacitor C1) electric connection, powered for described light emitting diode 202 by described the first drive circuit 120, select to be switched to the first current path from described the first drive circuit 120 to described light-emitting diode (LED) module 630. The advantage of the position that in Figure 29 B, switch 635 is set up is, switch 635 is easily controlled by the input voltage of an extra controller output (tie point of for example capacitor C and inductor 633) switching on this second drive circuit and is electrically connected, and avoids the output signal that is subject to the first drive circuit 120 affect and be difficult for controlling its switching by extra controller.

As from the foregoing, in Figure 28 A and Figure 29 A, this switch 635 is to receive the first signal that described the first drive circuit 120 is exported, and switch on and be electrically connected between an input of described the 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 and be electrically connected an output of this second drive circuit and be electrically connected between this first drive circuit 120 (comprising in these embodiments capacitor C1), and this second drive circuit is coupled to this first drive circuit 120.

(3) embodiment that comprises buck-boost circuit (buck-boostcircuit)

In addition can also there is, the embodiment of the straight tube lighting device 100 that one comprises 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 the second drive circuit and this light emitting diode 202 are connected to a buck-boost circuit structure, wherein this second drive circuit comprises a diode 632, a transistor switch 631, an Inductive component 633 and a capacitor C (inessential). Described diode 632 is in parallel with described transistor switch 631 after connecting with capacitor C, then jointly connects with described inductance 633.

As shown in figure 30, one end of one end of switch SW1 and Inductive component 633 and switch SW4 is 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 will determine conducting or the disconnection (or cut-off) on this switch.

As shown in figure 30, the state of this straight tube lighting device 100 (a) represent switch SW1, SW2 wherein in conducting switch SW3, SW4 in disconnecting (or cut-off). On the other hand, the state of this straight tube lighting device 100 (b) represents that switch SW1, SW2 are wherein in disconnecting switch SW3, SW4 in conducting. When state (a), for selecting to be switched to from described the second drive circuit to described light-emitting diode (LED) module 630 second current path of (containing light emitting diode 202). Wherein, see through described transistor switch 631 in conducting or cut-off, by this second drive circuit, this light-emitting diode (LED) module 630 is powered. And capacitor C can play to light emitting diode 202 effect of voltage stabilizing. When state (b), powered for described light emitting diode 202 by described the first drive circuit 120 (containing capacitor C1), select to be switched to the first current path from described the 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 utility model. Make LED light lamp both-end when energising, can flow into or flow out electric current via the circuit 140 of supporting both-end energising. 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, has omitted 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, has omitted capacitor C3.

In concrete enforcement of the present utility model, described light emitting diode group 202 can be set to multiple light emitting diodes. As shown in Figure 32 A-32C, about the connected mode of LED assembly 202 in some embodiment of the utility model, LED assembly 202 can be connected as shown in Figure 32 A after two parallel connections again, also can after three parallel connections, connect again as shown in Figure 32 B, also the (not shown) of connecting again after can many parallel connections, in parallel as shown in Figure 32 C again after also can many series connection. The mesh architecture of connecting again after the parallel connection shown in Figure 32 A and Figure 32 B, no matter its advantage is the LED assembly 202 of arbitrary group of parallel connection there is how many damages and opens a way, as long as wherein any LED assembly 202 can normal operating, all can flow through electric current and non-reason LED assembly and open a way and that lighting source is stopped is luminous. , can make extend the equivalent service life of lighting source. In parallel framework again after series connection as shown in Figure 32 C, its advantage is with the equal electric current of all flowing through of the LED assembly 202 in a string, make with the brightness uniformity of a string LED assembly 202 highly, also avoid the cripetura in the service life that part LED assembly 202 causes compared with large electric current because flowing through. Described LED assembly 202 is located on lamp plate, and described lamp plate has at least one deck conductive layer, and series, parallel or series-parallel LED assembly 202 are electrically connected and are reached above-mentioned connection framework by described at least one deck conductive layer.

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 negative electrode solder joint.

Metal wire in diagram (in figure, indicate "+" and "-" two metal line) cabling show described light-emitting diode component 202a, the anode of 202b is connected by metal wire and in equipotential, accordingly, LED assembly 202a, the negative electrode of 202b is also connected and equipotential by another metal wire, therefore LED assembly 202a with 202b in parallel. Similarly, light-emitting diode component 202c with 202d also in parallel. Simultaneously, due to the negative electrode of LED assembly 202a and 202b by the anodic bonding of metal wire and LED assembly 202c and 202d in equal potentials, therefore LED assembly 202a in parallel, 202b and LED assembly 202c in parallel, 202d is in series relationship, thus the circuit connection diagram of formation as shown in Figure 32 A.

In addition, known according to the Wiring structure of the metal wire shown in 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 the second part 202-2 is in order to be electrically connected adjacent first part 202-1, thereby makes it in equipotential. From diagram, due in described first part 202-1 with LED assembly 202a, the area 202-1 of the anode of 202b metal part immediately respectively than with LED assembly 202a, the area 202-1 of the negative electrode of 202b metal part is immediately little, simultaneously also than in first part 202-1, to extend area 202-1 little with the anode of the negative electrode of LED assembly 202b, LED assembly 202c metal wire immediately. More particularly, can comprise three parts that are connected with single LED assembly anode, with single LED assembly negative electrode and with the negative electrode and positive electrode of adjacent two LED assemblies in described first part 202-1, 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 assembly 202a, the metal part area of dissipation that the anode of 202b, negative electrode connect is larger under equal length, therefore contributes to the heat radiation of LED assembly 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 assembly 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 assembly 202d, thereby forms a LED unit in parallel, then with follow-up LED units in series, thereby form after the LED assembly series connection as shown in Figure 32 B more netted circuit structure in parallel.

Based on the principle same with legend shown in Figure 33 A, due in described first part 202-1 with single LED assembly anode, three parts being connected with single LED assembly negative electrode and with the negative electrode and positive electrode of adjacent two LED assemblies, 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 assembly 202a, the metal part area that the anode of 202b, negative electrode connect is larger, therefore contributes to the heat radiation of LED assembly light source.

Figure 33 C is 20 LED assembly series connection trace-diagram of parallel connection again of corresponding diagram 32C circuit theory diagrams. As shown in Figure 33 C, the one 20 LED component string comprises LED assembly 202a, 202b ..., 202t, in "+" and "-" connect between two metal line. And all LED component string (every string has 20 LED assemblies) in "+" and "-" in parallel between two metal line, reflect the netted circuit structure of LED assembly as shown in Figure 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 assembly 202. After power cut-off, described in release and can circuit can alleviate or prevent that glimmering from appearring in lighting source in the time turning off the light. The described also other forms of energy circuit of releasing of energy circuit of releasing, as long as can realize: can continue the scheduled current or above that circulates by circuit by described releasing when power remove. Can decide according to the current amplitude size of LED assembly 202 according to this scheduled current.

In addition, in other embodiments, described in release and can circuit be combined in the diffusion layer in the utility model one embodiment, can further reduce the flickering after power cut-off. Improving user experiences.

In the present embodiment, also can not adopt the connected mode of male plug 501, female plug 201, and can replace by conventional wires routing mode, adopt a traditional plain conductor, one end of plain conductor is electrically connected with power supply, 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, for being connected and fixed of convenient 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 and in conjunction with Fig. 7-9, lamp holder 3 is sheathed on fluorescent tube 1 when outer, and 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 faces, 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 insulation tube 302 has interval between one end of fluorescent tube and transition part 103.

In the present embodiment, insulation tube 302 is insulation at general state, and not limiting and using material is the material such as plastics, pottery.

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

Particularly, PUR 6 is filled in (position shown in dotted line B in Fig. 7) between the inner surface of heat-conducting part 303 extensions and the outer peripheral face of fluorescent tube 1. In other words, the position that PUR 6 is filled, by passing through with the axial vertical virtual plane (as the plane of the drawn mistake of dotted line B in Fig. 7) of fluorescent tube 1, is sequentially arranged as between the outer peripheral face of heat-conducting part 303, PUR 6 and fluorescent tube 1. PUR 6 coating thickness can be 0.2mm～0.5mm, and PUR 6 solidifies after can expanding, thereby contacts with fluorescent tube 1 and lamp holder 3 is fixed on to fluorescent tube 1. And owing to thering is difference in height between both outer peripheral faces of end 101 and main body 102, therefore can avoid PUR to spill in main body 102 parts of fluorescent tube, and remove follow-up manual wipping process from, improve the yields of producing.

When bonding, by external heat equipment, heat is conducted to heat-conducting part 303, and then conducts to PUR 6, solidifies after PUR 6 is expanded, thus by lamp holder 3 fixed bondings 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 join 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 of lamp holder 3 smooth smooth, ensures that whole lighting source is stressed even in packaging, transportation. Wherein, heat-conducting part 303 is 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 ratio: insulation tube length is 1:2.5～1:5.

In the present embodiment, the outer surface of the second pipe 302b and the inner surface of 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 at least partly outside fluorescent tube 1, PUR 6 has and is partially filled between second pipe 302b and the fluorescent tube 1 of overlapped (position shown in dotted line A in Fig. 7), also bonding by PUR 6 between the two, be that part PUR 6 is between the inner surface of the second pipe 302b and the outer surface of end 101, in other words, PUR 6 is filled in the position of described accommodation space to be passed through with the axial vertical virtual plane (as the plane of the drawn mistake of dotted line A in Fig. 7) of fluorescent tube by one, sequentially be arranged as heat-conducting part 303, the second pipe 302b, PUR 6 and end 101. spy gives explanation, and in the present embodiment, PUR 6 does not need to fill up completely above-mentioned accommodation space (as left space between heat-conducting part in Fig. 7 303 and the second pipe 302b). when manufacture, in the time of coating hot-melt adhesive 6 between heat-conducting part 303 and end 101, can suitably increase the amount of PUR, make in the process of follow-up heating, PUR can flow between the second pipe 302b and end 101 due to expansion, after solidifying and then by both bonding connections.

Wherein, the end 101 of fluorescent tube 1 is inserted in after lamp holder 3, the axial length that lamp holder 3 parts are inserted in the end 101 of fluorescent tube 1 account for heat-conducting part 303 axial lengths 1/3rd to 2/3rds between, such benefit is: on the one hand, ensure that hollow conductive pin 301 and heat-conducting part 303 have enough creep age distances, when energising, both are difficult for short circuit people are got 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, during by high voltage, make people more difficult because of electric shock initiation potential.

Further, manage 302b every between PUR 6 and heat-conducting part 303 for the PUR 6, the second of the second pipe 302b inner surface, 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, at the second pipe 302b, towards one end of fluorescent tube 1, (away from the first pipe 302a one end) arranges multiple breach 302c to the present embodiment, increase the contact area of heat-conducting part 303 and PUR 6, be beneficial to heat and conduct to PUR 6 from heat-conducting part 303 fast, accelerate the solidification process of PUR 6. Meanwhile, in the time that 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 conduction heats, in the present embodiment, is sheet metal, and has consideration attractive in appearance, for example aluminium alloy concurrently. 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 to be not easy heat conduction as good, avoids heat to conduct on the power supply module of lamp holder 3 inside, affects the performance of power supply module, and the insulation tube 302 in the present embodiment is plastic tube.

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

In other embodiments, lamp holder can also be arranged to other forms, for example:

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 the inner surface of magnetic conductive metal part 9 (magnetic conductive metal part 9 is towards the surface of fluorescent tube 1), and bonding with the outer peripheral face of fluorescent tube 1. Wherein, in order to increase bond area, to improve bonding stability, PUR 6 covers the whole inner surface of magnetic conductive metal part 9.

When manufacture, insulation tube 302 is inserted in an induction coil 11, makes radially relative along insulation tube 302 of induction coil 11 and magnetic conductive metal part 9. Add man-hour, induction coil 11 is switched on, after induction coil 11 energisings, form electromagnetic field, and electromagnetic field is converted to electric current after encountering magnetic conductive metal part 9, magnetic conductive metal part 9 is generated heat, use electromagnetic induction technology that magnetic conductive metal part 9 is generated heat, and heat conducts to PUR 6, PUR 6 expands and flows after absorbing heat, and the cooling PUR 6 that makes solidifies subsequently, to realize the object that lamp holder 3 is fixed on to fluorescent tube 1. Induction coil 11 is as far as possible coaxial with insulation tube 302, makes energy transmission 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 to induction coil 11. In the present embodiment, PUR 6 can present and expand and flow absorbing after heat, coolingly subsequently can reach curing effect, and certain, selecting of the utility model PUR composition is not limited thereto, and also can select curing composition after absorption heat. Or, in other embodiment, need to magnetic conductive metal part 9 be additionally set at lamp holder 3, only need in PUR 6, directly mix the high magnetic conductivity material powder of predetermined ratio, for example: iron, nickel, iron nickel mixture etc., add man-hour, induction coil 11 is switched on, after induction coil 11 energisings, make to be evenly distributed on high magnetic conductivity material powder in PUR 6 charged, and then PUR 6 is generated heat, PUR 6 expands and flows after absorbing heat, cooling curing subsequently, to realize the object that lamp holder 3 is fixed on to fluorescent tube 1.

Wherein, in order to support preferably magnetic conductive metal part 9, the inner peripheral surface of insulation tube 302 is greater than the internal diameter of remainder 302e for supporting the internal diameter of position 302d of magnetic conductive metal part 9, and form a step, axial one end of magnetic conductive metal part 9 leans on step, and make to arrange after magnetic conductive metal part 9, the inner surface of whole lamp holder is concordant. In addition, magnetic conductive metal part 9 can be various shapes, for example, be sheet or the tubulose etc. of circumferential array, magnetic conductive metal part 9 is set herein and is the tubulose coaxial with insulation tube 302.

In other embodiments, the inner peripheral surface of insulation tube 302 can also be following form for the position of supporting magnetic conductive metal part 9: with reference to Figure 10, Figure 11, on the inner peripheral surface of insulation tube 302, there is the support portion 313 towards insulation tube 302 inner projections, and, on the inner peripheral surface of insulation tube 302, be also provided with protuberance 310 in support portion 313 towards fluorescent tube main body one side, 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 in the axial direction the upper limb of support portion 313 (being the end face of support portion towards protuberance one side), upwards leans the radially inner side at protuberance 310 in week. That is to say, at least a portion protuberance 310 is between magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302. Wherein, protuberance 310 can be the annular of circumferentially extending along insulation tube 302 or around the inner peripheral surface of insulation tube 302 along circumferential spaced multiple projections, in other words, the arrangement of projection can be circumferential equidistant intervals arrangement or equidistant intervals is arranged, as long as can make the contact area of the outer surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302 reduce, but can reach the function of fixing PUR 6.

Described support portion 313 by the inner peripheral surface of insulation tube 302 to the inside protruding 310 thickness be 1mm～2mm, the thickness of protuberance 310 is less than described support portion 313 thickness, the thickness of described protuberance 310 is 0.2mm～1mm.

In other embodiments, lamp holder 3 can also be designed to all-metal, now need 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, the electric shock problem while avoiding user to touch lamp holder 3.

In other embodiments, lamp holder 3 can also be designed to the structure of plastics and metal (metal part is connected 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, the electric shock problem while 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, with reference to Figure 12, emptying aperture structure 901 be shaped as circle, but be not limited to circle, can be for example oval, square, star etc., as long as can reduce the contact area of the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302, but can reach the function that heat cure is hot melt 6 glue. Preferably, emptying aperture structure 901 areas account for 10%～50% of magnetic conductive metal part 9 areas. The arrangement of emptying aperture structure 901 can be that circumferential equidistant intervals is arranged or not equidistant intervals arrangement etc.

In other embodiments, with reference to Figure 13, magnetic conductive metal part 9 has an impression structure 903 towards the surface of described insulation tube, wherein Figure 13 is magnetic conductive metal part 9 view radially, impression structure 903 can be the structure from the outside surface relief of inner surface of magnetic conductive metal part 9, but can be also the structure from the inside surface relief of outer surface of magnetic conductive metal part 9, its objective is in order to form at the outer surface of magnetic conductive metal face 9 raised or sunken, to reach the object that reduces the contact area that makes 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 a non-positive circular rings, such as but not limited to vesica piscis, when fluorescent tube 1 and lamp holder 3 are while being oval, the minor axis of vesica piscis is slightly larger than lamp tube end external diameter, to reduce the contact area of the outer surface of magnetic conductive metal part 9 and the inner peripheral surface of insulation tube 302, but can reach the function of heat cure PUR 6. In other words, on the inner peripheral surface of insulation tube 302, have support portion 313, therefore the magnetic conductive metal part 9 of non-positive circular rings is located on support portion,, can make the contact area of the inner peripheral surface of magnetic conductive metal part 9 and insulation tube 302 reduce, and can reach again the function of solidifying hot-melt adhesive 6.

Continue with reference to Fig. 2, the LED fluorescent 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 a section of strip.

Lamp plate insulating cement 7 is applied to lamp plate 2 on the surface of light source 202, and lamp plate 2 is not exposed, thereby plays the insulating effect that lamp plate 2 is isolated from the outside. When gluing, reserve the through hole corresponding with light source 202 701, light source 202 is located in through hole 701. The constituent of lamp plate insulating cement 7 comprises vinyl polysiloxanes, hydrogen based polysiloxane and aluminium oxide. The thickness range of lamp plate insulating cement 7 is 100 μ m～140 μ m (micron). If be less than 100 μ m, do not have enough insulating effects, if be greater than 140 μ m, can cause the waste of material.

Light source glue 8 is applied to the surface of LED assembly 202. The color of light source glue 8 is Transparent color, to ensure light transmittance. Be coated to behind LED assembly 202 surfaces, 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 assembly 202 housing refractive indexes, or the refractive index of light source glue 8 is subduplicate positive and negative 15% of LED assembly 202 housing refractive indexes, the angular range that can make total reflection (InternalTotalReflection) occur is less, and therefore light transmittance is better. The light source shell here refers to the housing that holds LED crystal 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 assembly 202, and poor effect, if be greater than 1.3mm, can reduce light transmittance, also can increase material cost simultaneously.

When assembling, first light source glue 8 is applied to the surface of light source 202; Then lamp plate insulating cement 7 is applied on the side surface on lamp plate 2; Again LED assembly 202 is fixed on lamp plate 2; Then a side surface opposing to lamp plate 2 and LED assembly 202 is pasted to the inner peripheral surface that is fixed on fluorescent tube 1 by bonding agent 4; The last end of again lamp holder 3 being fixed on to fluorescent tube 1 is electrically connected LED assembly 202 simultaneously with power module 5. Or utilize flexible base plate to get over transition part 103 and power module 5 welds (welding through transition part 103 and power module 5) as Figure 16, or the mode of taking conventional wires routing allows 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 (by the structure of Fig. 4-5) or Fig. 8 (by the structure of Fig. 9), form a complete LED fluorescent lamp.

In the present embodiment, lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1 by bonding agent 4, LED assembly 202 is sticked on the inner peripheral surface of fluorescent tube 1, can increase so whole lighting source lighting angle, expand angle of visibility, arrange like this and generally can make angle of visibility can exceed 300 degree. By being coated with lamp plate insulating cement 7 at lamp plate 2, on LED assembly 202, be coated with the light source glue 8 of insulation, realize the insulation processing to whole lamp plate 2, like this, even if fluorescent tube 1 breaks, can there is not electric shock accidents yet, meet the requirement of safety, improve security.

In embodiment of the present utility model, 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, bendable substrate, and the flexible base, board of three layers of conductive layer and dielectric layer structure and the bendable substrate of other number of plies conductive layers and dielectric layer structure are contained in the scope system of " flexible base plate " in the utility model).

In concrete enforcement, the light emitting diode 202 of described straight tube lighting device can be arranged on (soft) substrate, as be arranged on the both sides up and down of this (soft) substrate, be that 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 the mode of welding that can see through this (soft) substrate realizes the electric connection with this first drive circuit and this second drive circuit, for example, should pass through at least one pad and this first drive circuit and this second drive circuit realization electric connection by (soft) substrate. in the utility model one embodiment, the electric connection of being somebody's turn to do (soft) substrate and this first drive circuit, this second drive circuit is to form by least one perforation place welding in this pad. in another embodiment of the utility model, the electric connection system of being somebody's turn to do (soft) substrate and this second drive circuit and this support both-end power-on circuit sees through in the welding of at least one pad and forms.

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, for example, 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 and installs voluntarily, easily causes electric shock accidents. Because bendable substrate has pliability and flexible characteristic, solve the situation of rigidity strip aluminium base, FR4 plate or traditional communication three layers of flexible base, board pliability and bendability deficiency, therefore the lamp plate 2 of the present embodiment adopts bendable substrate (can be for example flexible circuit board) as substrate, like this after fluorescent tube 1 breaks, after fluorescent tube 1 breaks, cannot support the fluorescent tube 1 breaking and continue to remain straight tube state, to inform that user's lighting source can not use, and avoids the generation of electric shock accidents. Therefore,, when adopting after bendable substrate, can alleviate to a certain extent due to the broken electric shock problem causing of glass tube.

Following examples explain as the utility model lamp plate 2 using bendable substrate.

Wherein, between bendable substrate and the output of power module 5, can be connected by wire routing, 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 bendable substrate is adhesively fixed in the inner peripheral surface of fluorescent tube 1 by bonding agent 4, and as shown in figure 17, and the two ends of bendable substrate can be selected fixing or not be fixed on the inner peripheral surface of fluorescent tube 1.

If the two ends of bendable substrate are not fixed on the inner peripheral surface of fluorescent tube 1, if adopt wire to connect, move in process follow-up, due to two ends freely, easily shake in moving process follow-up, thereby likely make wire rupture. Therefore the connected mode of bendable substrate and power module is preferentially chosen as welding, particularly, with reference to Figure 16, be welded on the output of power module 5 after can directly bendable substrate being got over to the transition part 103 of strengthening section structure, remove the use of wire from, the stability of improving the quality of products. Now bendable 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 to pad a, and on pad a, stay tin, with make the tin on pad thickness increase, convenient welding, accordingly, on the end of bendable substrate, also reserve pad b, and the pad b of the pad a of power module 5 outputs and bendable substrate is welded together.

The pad b of bendable substrate has two unconnected weld pads, respectively with light source 202 both positive and negative polarity electrical connections. In other embodiments, in order to reach the extendibility in compatible and follow-up use, the quantity of pad b can have plural weld pad, for example 3, more than 4 or 4, in the time that weld pad is 3, the 3rd weld pad can use as ground connection, and in the time that weld pad is 4, the 4th weld pad can be used for signal input end. Accordingly, pad a also leaves and the identical weld pad of pad b quantity. When weld pad is when more than 3, the arrangement between weld pad can be row side by side or line up two row, the accommodating size during according to actual use configure in position, needs only and is not electrically connected and causes short circuit each other. In other embodiments, if partly circuit production is on (soft) substrate, pad b can only have an independent weld pad, and weld pad quantity is fewer, more saves flow process in technique; The more, the electrical connection of (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 use can pass described perforation, in the time that tin passes perforation, can be deposited in around perforation, after cooling, can form and there is the soldered ball that is greater than penetration hole diameter, it similarly is the function of nail that this ball structure can play, except the tin through between pad a and pad b is fixing, more can form the fixing enhancing of structural electrical connection because of the effect of soldered ball.

In other embodiments, a those weld pads wherein breach at the edge of a weld pad can be used as described perforation, the perforation that is weld pad is at edge, namely weld pad has a breach, the tin of welding use sees through described breach fixing to pad a and pad b electrical connection, tin can be deposited in around perforation, after cooling, can form and there is the soldered ball that is greater than penetration hole diameter, this ball structure can form the fixing enhancing of structural electrical connection, in the present embodiment, because the design of breach, it similarly is the function of ㄇ staple that the tin of welding use plays.

No matter the perforation of weld pad is first to form, or directly punch with pressure-welding head in the process of welding, can reach the structure described in the present embodiment. Its surface contacting with scolding tin of described pressure-welding head can or have recess and the surface of protuberance for plane, protuberance can be strip or latticed, the covering of not exclusively boring a hole of described protuberance, guarantee that scolding tin can be from passing, be deposited in perforation around time when scolding tin passes perforation, recess can provide the accommodating position of soldered ball. In other embodiments, (soft) substrate has a locating hole, can see through locating hole the weld pad of pad a and pad b is located accurately in the time of welding.

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

If the two ends of (soft) substrate are fixed on the inner peripheral surface of fluorescent tube 1, consider to be provided with female plug 201 in the end of (soft) substrate, then the male plug of power module 5 501 is inserted to 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 bendable substrate of other number of plies conductive layers and dielectric layer structure. This flexible base plate comprises conductive layer and at least one dielectric layer of at least one patterning, 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 respectively on described conductive layer. Be understandable that, this conductive layer can be also the conductive layer of non-patterning.

As Figure 17, (soft) substrate comprises one deck conductive layer 2a, and it is upper that LED assembly 202 is located at 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 being used for arranging LED assembly 202 with the opposing surface of dielectric layer 2b, and dielectric layer 2b is being adhered on the inner peripheral surface of fluorescent tube 1 by bonding agent 4 with the opposing surface of conductive layer 2a. Wherein, conductive layer 2a can be metal level, or is furnished with the bus plane of wire (for example copper cash).

In other embodiments, the outer surface of conductive layer 2a and dielectric layer 2b can be coated a circuit protecting layer, and described circuit protecting layer can be a kind of ink material, has welding resistance and increases the function reflecting. Or (soft) substrate can comprise one deck conductive layer 2a, be then coated the circuit protecting layer of the above-mentioned ink material of one deck on the surface 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 in a side surface setting of (soft) substrate, for example, only circuit protecting layer is set having one of light source 202 side. 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), obviously have more pliability and flexibility than three layers of general flexible base, board (pressing from both sides one dielectric layer in two layers of conductive layer), therefore, can arrange in pairs or groups (for example: non-straight lamp) with thering is 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 configuration, and the number of plies of (soft) substrate is fewer, and 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 utility model is not limited in three layers of substrate with lower conductiving layer and dielectric layer structure, in other embodiments, (soft) substrate can comprise more than four layers conductive layer and dielectric layer structure: for example comprise multilayer conductive layer 2a and multilayer dielectric layer 2b, dielectric layer 2b and conductive layer 2a can sequentially interlock stacked and be located at conductive layer 2a and the opposing side of LED assembly 202, LED assembly 202 is located at the last layer of multilayer conductive layer 2a, is communicated with power sourced electric by the last layer of conductive layer 2a.

Further, on fluorescent tube 1 inner peripheral surface or outer peripheral face, be coated with adhesive film (not shown), isolate for outside and the inside to fluorescent tube 1 after breaking at fluorescent tube 1. The present embodiment is coated in adhesive film on the inner peripheral surface of fluorescent tube 1.

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, 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 complementary material, and after adhesive film is coated in fluorescent tube 1 inner peripheral surface and solidifies, dimethylbenzene can vapor away, and its effect is mainly adjusting viscosity, and then regulates the thickness of adhesive film.

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

In the present embodiment, because fluorescent tube inside scribbles adhesive film, after glass lamp fragmentation, adhesive film can be by fragment adhesion together, and can not form and connect the inside and outside through hole of fluorescent tube, thereby prevent that user from touching the electrical body of fluorescent tube 1 inside, to avoid occurring electric shock accidents, adopt the adhesive film of said ratio also to there is 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 bendable substrate, therefore adhesive film also can be set.

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

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

The light that diffusion layer 13 sends LED assembly 202 plays the effect of diffusion, therefore, the layout of diffusion layer 13 can have various ways, as long as pass again fluorescent tube 1 after making light see through diffusion layer 13, for example: diffusion layer 13 can apply or be covered on the inner peripheral surface of fluorescent tube 1, or apply or be covered in the lip-deep diffusion coating (not shown) of LED assembly 202, or cover on the diffusion barrier sheet outside LED assembly 202 as an outer cover (or covering).

As Figure 18, diffusion layer 13 is diffusion barrier sheet, and covers on outside LED assembly 202, and does not contact with LED assembly 202. The general term of diffusion barrier sheet is optical diffusion sheet or optical diffusing plate, conventionally with the diffusion particle of arranging in pairs or groups of one or more the combination in PS polystyrene, PMMA polymethyl methacrylate, PET (PET), PC (Merlon), a kind of composite forming, in the time that light sees through described composite, can there is diffusion, can revise light and become uniform area light source finally to make the brightness of fluorescent tube be uniformly distributed with the effect that reaches optics diffusion.

In the time that diffusion layer 13 is diffusion coating, its composition can comprise at least one or its combination in calcium carbonate, calcium halophosphate activated by antimony andmanganese and aluminium oxide. when the diffusion coating that utilizes the solution that it is suitable that calcium carbonate is arranged in pairs or groups to form, the effect of excellent diffusion and printing opacity (having an opportunity to reach more than 90%) will be there is. in addition, seeing through the creative work of tool also finds, lamp holder in conjunction with strengthening section glass sometimes can be defective in quality, there is a little ratio easily to come off, and as long as described diffusion coating is also coated onto on the outer surface of end 101 of fluorescent tube, between diffusion coating and PUR 6, can increase the frictional force between lamp holder and fluorescent tube, make frictional force between diffusion coating and PUR 6 be greater than the frictional force between end face and the PUR of end 101 of fluorescent tube while not coating diffusion coating, therefore the frictional force that lamp holder 3 sees through between diffusion coating and PUR 6, the problem that lamp holder 3 comes off just can significantly solve.

In the present embodiment, in the time of allotment, the constituent of diffusion coating comprises calcium carbonate (for example CMS-5000, white powder), thickener (for example thickener DV-961, milky white liquid), and ceramic active carbon (for example ceramic activated carbon SW-C, colourless liquid). Wherein, the chemistry of thickener DV-961 is called colloidal silica denaturing acrylamide acid resin, the stickiness when being used for increasing calcium carbonate and being attached at glass lamp inner peripheral surface, and its component comprises acrylic resin, silica gel and pure water; The component of pottery activated 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 is taking calcium carbonate as main material, collocation thickener, pottery activated carbon and deionized water, after mixing, be coated on the inner peripheral surface of glass lamp, the average thickness applying drops between 20～30 μ m, and last deionized water will vapor away, only remaining calcium carbonate, thickener and three kinds of materials of ceramic activated carbon. The diffusion layer 13 that adopts this material to form, can have approximately 90% light transmittance. In addition, this diffusion layer 13, except having the effect of diffused light, can also play the effect of electricity isolation, thereby make in the time that glass lamp breaks, and reduces the risk that user gets an electric shock; Meanwhile, this diffusion layer 13 can make LED assembly 202 when luminous, allows light produce diffusion, toward penetrating, thereby can shine the rear of LED assembly 202 from all directions, near a side of bendable substrate, avoid occurring dark space in fluorescent tube 1 the illumination comfort of room for promotion.

In other embodiments, diffusion coating can calcium carbonate be also main material, arrange in pairs or groups a small amount of reflecting material (as strontium phosphate or barium sulfate), thickener, pottery activated carbon and deionized water, after mixing, be coated on the inner peripheral surface of glass lamp, the average thickness applying drops between 20～30 μ m, and last deionized water will vapor away, only remaining calcium carbonate, reflecting material, thickener and four kinds of materials of ceramic activated carbon. Because the object of diffusion layer is to allow 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 be much larger than the particle diameter of calcium carbonate, therefore, be chosen in diffusion coating and add a small amount of reflecting material, can effectively increase the diffusion effect of light. Certainly, in other embodiment, also can select the main material of calcium halophosphate activated by antimony andmanganese or the micro-diffusion coating of aluminium oxide, repeat no more.

Further, continue with reference to Figure 18, be also provided with reflectance coating 12 on the inner peripheral surface of fluorescent tube 1, reflectance coating 12 is located at around the lamp plate 2 with LED assembly 202, and along the part inner peripheral surface that circumferentially takies fluorescent tube 1. As shown in figure 18, reflectance coating 12 circumferentially extends along fluorescent tube in lamp plate 2 both sides. The setting of reflectance coating 12 has the effect of two aspects, on the one hand, when (directions X in figure) sees fluorescent tube 1 when from the side, owing to there being reflectance coating 12 to stop, can directly not see LED assembly 202, thereby reduces the visual discomfort that granular sensation causes; On the other hand, the light that LED assembly 202 sends, through the reflex of reflectance coating 12, can be controlled the angle of divergence of fluorescent tube, and light is irradiated towards the direction that does not scribble 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, offers the perforate 12a corresponding with lamp plate 2, and the size of perforate 12a should be consistent with lamp plate 2 or be slightly larger than lamp plate 2, for holding the lamp plate 2 with LED assembly 202. When assembling, now be arranged on the inner peripheral surface of fluorescent tube 1 with the lamp plate 2 (or bendable substrate) of LED assembly 202, reflectance coating 12 is sticked at fluorescent tube inner peripheral surface, wherein the perforate 12a of reflectance coating 12 is corresponding one by one with lamp plate 2 again, 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, generally, preferably can reach more than 95%, to obtain more preferably reflecting effect when above 90%. The length that reflectance coating 12 circumferentially extends along fluorescent tube 1 occupies 30%～50% of whole fluorescent tube 1 circumference, that is to say, 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 utility model is only arranged on reflectance coating 12 along circumferential medium position as example taking lamp plate 2, that is to say, lamp plate 2 both sides reflectance coatings 12 have identical in fact area, 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 μ m～350 μ m, and generally, between 150 μ m～220 μ m, effect is better.

In other embodiments, reflectance coating 12 also can adopt other forms to arrange, for example, along the circumferential direction of fluorescent tube 1, reflectance coating 12 can be located at the one or both sides of lamp plate 2, be that reflectance coating 12 contacts with the circumferential one or both sides of lamp plate 2, circumferentially the one-sided ratio that occupies fluorescent tube 1 circumference is identical with the present embodiment for it, 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 offered perforate, when assembling, directly reflectance coating 12 is sticked on the inner peripheral surface of fluorescent tube 1, and then the lamp plate with light source 202 2 is fixed on reflectance coating 12, reflectance coating 12 also can circumferentially extend along fluorescent tube respectively in the both sides of lamp plate 2 herein, as Figure 20, or only circumferentially extend along fluorescent tube in a side of lamp plate 2, as Figure 21.

In other embodiments, reflectance coating 12 can be only set, diffusion layer 13 be 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 assembly 202 is arranged on reflectance coating 12, and the lamp plate 2 of carrying LED assembly 202 is positioned at a side of reflectance coating 12, and diffusion layer 13 is not set.

In other embodiments, the width of (soft) substrate can be widened, and the effect of reflectance coating 12 functions can be played in the position of widening. Preferably, the proportion between (soft) substrate circumferentially extends along fluorescent tube 2 length and the girth of described fluorescent tube 2 inner peripheral surfaces is 0.3～0.5. As described in embodiment above; (soft) substrate is outer can be coated a circuit protecting layer; circuit protecting layer can be a kind of ink material; there is the function that increases reflection; (soft) substrate of widening is taking light source as starting point to circumferential extension, and the light of light source can make light more concentrated by the position of widening.

In the embodiment of aforesaid Figure 18-22, on the inner peripheral surface of glass tube, can all coat diffusion coating, or part is coated diffusion coating (having reflectance coating 12 parts 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 to comprise the support 202b with groove 202a that LED assembly 202 can further be improved, and is located at the LED crystal grain 18 in groove 202a. In groove 202a, be filled with fluorescent material, fluorescent material covers LED crystal grain 18, to play the effect of Color Conversion. In a fluorescent tube 1, LED assembly 202 has multiple, and multiple LED assemblies 202 are arranged into row or multiple row, and every row LED assembly 202 is arranged along axial (Y-direction) of fluorescent tube 1. Groove 202a in each support 202b can be one or more.

Wherein, the support 202b of at least one LED assembly 202 has the first side wall 15 of arranging along fluorescent tube length direction, and second sidewall 16 of arranging along fluorescent tube width, and the first side wall 15 is lower than the second sidewall 16. Or the support 202b of at least one LED assembly 202 has the second sidewall 16 extending along fluorescent tube length direction, and the first side wall 15 extending along fluorescent tube width, the first side wall 15 is lower than the second sidewall 16. The first side wall herein, the sidewall that the second sidewall refers to surround groove 202a.

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

Wherein, two the first side walls 15 are arranged along fluorescent tube 1 length direction (Y-direction), and two the second sidewalls 16 are arranged along fluorescent tube 1 width (directions X). The first side wall 15 extends along the width (directions X) 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 sidewall of the support that wherein has one or more light sources to adopt arranging of other or extension mode.

When user is from the side of fluorescent tube, for example to observe when fluorescent tube along directions X, the second sidewall 16 can stop that user's sight line directly sees LED assembly 202, to reduce the discomfort of particle. Wherein, the first side wall 15 " along the width of fluorescent tube 1 " extends, as long as it is basic identical to meet the width of extension trend and fluorescent tube 1, do not require strict parallel with the width of fluorescent tube 1, for example, the first side wall 15 can have a little differential seat angle with the width of fluorescent tube 1, or the first side wall 15 can be also the various shapes such as fold-line-shaped, arc, waveform; The second sidewall 16 " along the length direction of fluorescent tube 1 " extends, as long as it is basic identical to meet the length direction of extension trend and fluorescent tube 1, do not require strict parallel with the length direction of fluorescent tube 1, for example, the second sidewall 16 can have a little differential seat angle with the length direction of fluorescent tube 1, or the second sidewall 16 can be also 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, can make light can easily cross support 202b exhales, see through the moderate spacing design of density, can not produce the discomfort of particle in Y-direction, in other embodiments, if the first side wall is not less than the second sidewall, between every row LED assembly 202, to arrange closelyr, could reduce granular sensation, improve usefulness.

Wherein, the inner surface 15a of the first side wall 15 is domatic, is set to the form perpendicular to diapire with respect to inner surface 15a, and light is more easily through domatic exhaling in domatic being arranged so that. Domaticly can comprise plane or cambered surface, in the present embodiment, adopt plane, and the gradient of described plane be between 30 °～60 °. That is to say, the angular range between plane and the diapire of groove 202a is between 120 °～150 °.

In other embodiments, the gradient of plane can also, between 15 °～75 °, that is to say, the angular range between plane and the diapire of groove 202a is between 105 °～165 °. Or domatic can be the combination of plane and cambered surface.

In other embodiments, if LED assembly 202 is multiple row, and the axial direction (Y-direction) along fluorescent tube 1 is arranged, the support 202b that only wants outermost two to be listed as LED assembly 202 (being two row LED assemblies 202 of adjacent lamp tube tube wall) has 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 (directions X), that is to say, the support 202b that outermost two is listed as LED assembly 202 has the first side wall 15 extending along the width (directions X) of fluorescent tube 1, and the second sidewall 16 extending along the length direction (Y-direction) of fluorescent tube 1, the support 202b orientation of other row LED assembly 202 between these two row LED assembly 202 does not limit, for example, the support 202b of middle column (the 3rd row) LED assembly 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 (directions X), or each support 202b can have two the first side walls 15 of arranging along fluorescent tube 1 width (directions X) 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, for example, while observing fluorescent tube along directions X, the second sidewall 16 that outermost two is listed as LED assembly 202 medium-height trestle 202b can stop that user's sight line directly sees LED assembly 202, can reduce the discomfort of particle. identical with the present embodiment, for outermost two row light sources, allow the sidewall of the support that wherein has one or more light sources to adopt arranging of other or extension mode.

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

In the time that multiple LED assemblies 202 are arranged into the multiple row along fluorescent tube length direction, multiple row LED assembly 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 multiple LED assemblies 202 of every row, all the second sidewalls 16 that are positioned at the same side along fluorescent tube width are on same straight line. This be because: when user's broad ways is observed fluorescent tube from the side, as long as the second sidewall 16 of outermost two row LED assembly 202 medium-height trestle 202b can stop user's sight line and directly see LED assembly 202, just can reach the object of the discomfort that reduces particle. And for row or a several row LED assembly 202 of centre, the arranging of its sidewall, extension mode is not done requirement, can, with outermost two to be listed as LED assemblies 202 identical, also can adopt other arrangement modes.

What need to point out is, in other embodiments, for same LED lamp, " fluorescent tube has strengthening section structure ", " lamp plate adopts bendable substrate ", " fluorescent tube inner peripheral surface scribbles adhesive film ", " fluorescent tube inner peripheral surface scribbles diffusion layer ", " light source is covered with diffusion barrier sheet ", " tube inner wall scribbles reflecting layer ", " lamp holder is the lamp holder that comprises heat-conducting part ", " asymmetric lamp holder is the lamp holder that comprises magnetic conductive metal piece ", " light source has support ", " power module ", in features such as " release can circuit ", can only include one or more. in the utility model embodiment, knownly comprise above-mentioned partial circuit feature, that is to say, above-mentioned feature can be made to permutation and combination arbitrarily, 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 main body external diameter end, its external diameter equates with the external diameter of described main body.

Adopt in (soft) substrate at lamp plate, between described (soft) substrate and the output of described power supply can by wire routing be connected or described (soft) substrate and the output of described power supply between weld. 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 ceramic active carbon, and thickener and ceramic active 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 in the perforate of described reflecting layer or at the side in described reflecting layer.

In lamp holder design, in lamp holder 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 non-positive circle, and can reduce and the contact area of insulation tube by emptying aperture structure or impression structure are set. In addition, the contact area that also can strengthen the support to magnetic conductive metal part and reduce magnetic conductive metal part and insulation tube by support portion, protuberance are set in insulation tube. The length of one side lamp head is about the half of opposite side lamp holder length, and (its cripetura part is extended to compensate by fluorescent tube, the entire length that ensures LED lamp conforms with the regulations, because the length of fluorescent tube has prolongation, the interval that is attached to the LED inter-module on the lamp plate of tube inner wall can be strengthened accordingly, can improve like this radiating efficiency, extend the life-span of LED assembly).

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

Although the utility model discloses as above, the utility model is not defined in this. Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model 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 sees 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 between an input and this light-emitting diode (LED) module of electrically connect that is electrically connected this second drive circuit, 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 this wave filter is that signal after 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 for filtering, or this light emitting diode and a Parallel-connected Capacitor.

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

One fluorescent tube is the peripheral framework of elongate;

Two lamp holders, be socketed on respectively the two ends of described fluorescent tube, on described two lamp holders, be 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 that at least flowing through between one of them of at least one of them and described three pin and described four pin of AC signal in described the first pin and described the second pin is provided; 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 the first drive circuit is electrically connected described rectification unit, is suitable for receiving described DC signal and provides a first signal to arrive described light-emitting diode (LED) module through one first current path; Described the 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 is suitable for switching to allow electric current to pass through and this second drive circuit of bypass along described the first current path, or passes through along described the second current path; And this circuit substrate has been this first drive circuit of carrying and at least one of this second drive circuit, and at one end there is one first pad, this first pad and this first drive circuit or the electric connection of this second drive circuit; And

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

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

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;

This straight tube lighting device is also characterised in that and comprises:

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 sees through the 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 respectively the 3rd pin and the 4th pin, has been to prevent the short circuit that meets accident of this light-emitting diode (LED) module; And in the time that 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 in the time that this switch is electrically connected this second drive circuit.

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