CN207990256U

CN207990256U - LED straight lamps

Info

Publication number: CN207990256U
Application number: CN201721645203.1U
Authority: CN
Inventors: 江涛; 叶奇峰; 张跃强
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: 2015-09-25
Publication date: 2018-10-19
Anticipated expiration: 2025-09-02

Abstract

The utility model provides a kind of LED straight lamps, include the power supply with printed circuit board and the lamp plate with LED light source, the printed circuit board welds together to realize the electrical connection of the two with the lamp plate, and the printed circuit board is perpendicular to the lamp plate.The printed circuit board of technical solution according to the present utility model, LED straight lamps is vertical with lamp plate, and higher element on printed circuit board can be made to change placement direction, to make lamp cap volume smaller, saves production cost.

Description

LED straight lamps

The application be September in 2015 25 application No. is the 201590001018.1, applying date, utility model creates title For the divisional application of the utility application of LED straight lamps

Technical field

The utility model is related to field of illuminating device, and in particular to a kind of LED (light-emitting diode) straight tube Lamp and its component include light source, electronic component and lamp cap.

Background technology

LED lighting technology it is positive fast-developing and instead of traditional incandescent lamp and fluorescent lamp.Compared to being filled with indifferent gas For the fluorescent lamp of body and mercury, LED straight lamps need not filling mercury.Therefore, various by seeming conventional fluorescent bulbs and lamp In the lighting system for the household or workplace that the illumination option such as pipe is dominated, LED straight lamps are it is hardly surprising that be increasingly becoming people Height expect illumination option.The advantages of LED straight lamps the durability comprising promotion and longer service life and compared with low power consuming. Accordingly, it is considered to after all factors, LED straight lamps will be the illumination option of escapable cost.

Known LED straight lamps generally comprise fluorescent tube, in fluorescent tube and the circuit board with light source, and are set to fluorescent tube two The lamp cap at end is equipped with power supply in lamp cap, and electrical from power supply is transferred to light source by circuit board.However, existing LED straight tubes Lamp still has following a few class disadvantages to need to solve：

It is real generally in such a way that plain conductor is by routing between rigid circuit board and lamp cap in existing LED straight lamps It is now electrically connected, during the manufacture of LED straight lamps, transport and use, plain conductor routing is easy to damage due to moving It is even broken, causes LED straight lamps that can not use.And the capacitance in power supply module belongs to the important electronic component of LED straight lamps, When capacitance is arranged with other components in power supply module on identical printed circuit board, other components are operated in LED straight lamps It generates high temperature exothermic in the process to be easy to damage capacitance, to lower the service life of LED straight lamps.

In addition to this, conventional power source is generally disposed on the circuit board with light source, or is separately set with light source circuit board It is placed in power supply circuit board；When being set on light source circuit board, it is easy to cause the area reduction that light source can be set；When being independently arranged When on power supply circuit board, usually such power supply circuit board is set in the lamp cap of lamp tube ends, in LED straight lamp overall lengths Spend it is constant in the case of, the more long then fluorescent tube of power supply circuit board length can lighting area it is smaller.

In addition, commercially available common electric ballast mainly can be divided into instantaneous starting type (Instant Start) electronic ballast Device, two kinds of program actuated type (Program Start) electric ballast.Electric ballast has resonance circuit, driving design It is matched with the load characteristic of fluorescent lamp, i.e., electric ballast is capacitive components before lighting in fluorescent lamp, and after lighting is electricity Resistive component provides corresponding startup program, and fluorescent lamp is allow correctly to light.And LED is nonlinear member, with fluorescence The characteristic of lamp is entirely different.Therefore, LED straight lamps can influence the resonance design of electric ballast, and cause compatibility issue.One As for, program actuated type electric ballast can detect the presence of filament in fluorescent lamp, and traditional LED drive circuit can not prop up It holds and causes detecting failure and can not start.In addition, electric ballast is equivalent upper for current source, the direct current as LED straight lamps It when turning the power supply of direct current transducer, be easy to cause overcurrent-overvoltage or undercurrent is under-voltage, thus cause electronic component damage or LED straight Spot can not stablize offer illumination.

In view of the above problem, the utility model set forth below and embodiment.

Invention content

In view of this, the utility model provides a kind of LED straight lamps, there is higher reliability, lower production cost And longer service life.Other advantageous effects and advantage of the utility model and unconventional optional realization method will be tied Specific implementation mode is closed to be illustrated.

To achieve the above object, one side according to the present utility model provides a kind of LED straight lamps.

This LED straight lamps of the utility model include the power supply with printed circuit board and the lamp plate with LED light source, The printed circuit board welds together to realize the electrical connection of the two with the lamp plate, and the printed circuit board is vertical In the lamp plate.

Optionally, respectively there is pad, the printed circuit board and the lamp plate on the printed circuit board and the lamp plate Together via the pad solder.

Optionally, the power supply is divided into two parts, per partly all having printed circuit board, on one of printed circuit board At least partially or fully capacitance being provided in the power supply is provided on another printed circuit board in the power supply and removes institute State other components other than capacitance.

Optionally, the lamp plate is rigid circuit board.

Optionally, the fluorescent tube of the LED straight lamps is glass tube or plastic tube.

Optionally, the surface of the light tube of the LED straight lamps has light diffusion coating.

Optionally, the lamp tube ends of the LED straight lamps have Plastic lamp socket.

Optionally, the length of the Plastic lamp socket of the lamp tube ends is different.

Other side according to the present utility model provides another LED straight lamps.

This LED straight lamps of the utility model, including fluorescent tube, the LED lamp panel in the fluorescent tube, it is respectively arranged on institute The lamp cap and power supply module of lamp tube ends are stated, the LED lamp panel is equipped with plurality of LEDs light source, and the lamp cap is for being arranged institute State the end of fluorescent tube and include a printed circuit board, the power supply module be set to the printed circuit board on and with the LED light Source electrical communication, the power supply module include rectification circuit, filter circuit, driving circuit and filament artificial circuit, the printing Circuit board includes conductive pin, and the power supply module electrically connects through the hollow conductive pin of the conductive pin and the lamp cap It connects, the printed circuit board connects perpendicular to the lamp plate, the LED lamp source through the printed circuit board and the power supply module It connects, the filament artificial circuit is electrically connected through the hollow conductive pin of the printed circuit board and the lamp cap.

Optionally, the power supply module is arranged on two printed circuit boards, is provided on one of printed circuit board At least partially or fully capacitance in the power supply is provided on another printed circuit board in the power supply and removes the capacitance Other components in addition.

Optionally, the lamp plate is rigid circuit board.

Optionally, the filament artificial circuit includes capacitance and resistance in parallel；Distinguish at the both ends of the capacitance and resistance Couple two pins of LED straight lamps the same end.

Optionally, the filament artificial circuit includes two negative temperature coefficient resisters, connects and is coupled to the LED straight tubes Between two pins of lamp the same end.

Optionally, the filament artificial circuit includes the first capacitance, the second capacitance, first resistor and second resistance, In：First capacitance and the second capacitance are series between two pins of LED straight lamps the same end；The first resistor And second resistance is also series between described two pins；The tie point of first capacitance and the second capacitance, with described first Resistance and the coupling of the tie point of second resistance.

Optionally, the resistance value of the filament artificial circuit is 10 ohm or more at 25 DEG C；The LED straight lamps are normal When startup, the resistance value of the filament artificial circuit is down to 2~10 ohm.

Optionally, the rectification circuit is coupled between the filament artificial circuit and the driving circuit.

The printed circuit board of technical solution according to the present utility model, LED straight lamps is vertical with lamp plate, and printing can be made electric Higher element changes placement direction on the plate of road, to make lamp cap volume smaller, saves production cost, while being effectively increased LED The fluorescent tube lighting area of straight lamp；Printed circuit board and lamp plate are welded directly together, conductor connections are replaced, it can be effective LED straight lamps are avoided to damage the risk for causing connecting wire to be broken due to moving；By other components point in capacitance and power supply It is not arranged on two printed circuit boards, avoids the fever of other components to the damage of capacitance, to helps to improve LED straight tubes The service life of lamp.

The LED straight lamps of the utility model have filament artificial circuit, can improve the fluorescent tube driving detected with filament The compatibility of circuit such as program actuated type ballast.Filament artificial circuit is coupled in two pins of LED straight lamps the same end Between, for the lamp tube drive circuit for being detected with filament at the beginning of startup, whether the filament for detecting fluorescent tube is normal, that is, detects lamp The abnormal conditions of short circuit or open circuit do not occur for silk.Therefore filament artificial circuit can enable the LED light for not having filament be compatible with The lamp holder of the existing lamp tube drive circuit with filament detecting, brings convenience for the use of user.

Description of the drawings

Attached drawing is not constituted improper limits to the present invention for more fully understanding the utility model.Wherein：

Fig. 1 is a stereogram, shows the LED straight lamps of one embodiment of the utility model；

Figure 1A is a stereogram, shows the lamp cap tool of the lamp tube ends of the LED straight lamps of another embodiment of the utility model There are different sizes；

Fig. 2 is a stereogram exploded view, shows the LED straight lamps of Fig. 1；

Fig. 3 is a stereogram, shows the front and top of the lamp cap of the LED straight lamps of one embodiment of the utility model；

Fig. 4 is a stereogram, shows the bottom of the lamp cap of the LED straight lamps of Fig. 3；

Fig. 5 is a section plan, shows fluorescent tube in axial direction interior of one embodiment LED straight lamps of the utility model Portion's structure, two of which reflectance coating are circumferentially extended in LED lamp panel both sides along fluorescent tube respectively；

Fig. 6 is a section plan, shows that the LED lamp panel of the LED straight lamps of one embodiment of the utility model is bendable Circuit board and its end gets over the transition region of fluorescent tube and is welded to connect with the output end of power supply；

Fig. 7 is a section plan, shows the bendable electricity of the LED lamp panel of one embodiment LED straight lamps of the utility model Road plate has double-layer structure；

Fig. 8 is a stereogram, shows the flexible circuit board of the LED lamp panel of one embodiment LED straight lamps of the utility model The pad being welded to connect with the printed circuit board with power supply；

Fig. 9 is a plan view, shows the flexible circuit board of the LED lamp panel of one embodiment LED straight lamps of the utility model Pad configuration；

Figure 10 is a plan view, shows the bendable circuit of the LED lamp panel of another embodiment LED straight lamps of the utility model There are three the pads in a row side by side for plate tool；

Figure 11 is a plan view, shows the bendable circuit of the LED lamp panel of the utility model another embodiment LED straight lamps There are three the pads in two row side by side for plate tool；

Figure 12 is a plan view, shows the bendable circuit of the LED lamp panel of another embodiment of the utility model LED straight lamps There are four the pads that pad side by side is arranged in one for plate tool；

Figure 13 is a plan view, shows the flexible circuit board of the LED lamp panel of one embodiment LED straight lamps of the utility model Pad on have through-hole；

Figure 14 is a section plan, shows from one embodiment of the utility model of side elevation and utilizes Figure 13's The welding process of the pad of the flexible circuit board of LED lamp panel and the printed circuit board of power supply；

Figure 15 is a section plan, shows from one embodiment of the utility model of side elevation and utilizes Figure 13's The welding process of the pad of the flexible circuit board of LED lamp panel and the printed circuit board of power supply, the wherein through-hole on pad are close The edge of flexible circuit board；

Figure 16 is a plan view, shows the flexible circuit board of the LED lamp panel of one embodiment LED straight lamps of the utility model Pad have notch；

Figure 17 is a section plan, shows the enlarged local section of the A-A' lines along Figure 16；

Figure 18 is a stereogram, shows the bendable circuit of the LED lamp panel of another embodiment LED straight lamps of the utility model The printed circuit board of plate and power supply is combined into a circuit board assemblies；

Figure 19 is a stereogram, shows another configuration of the circuit board assemblies of Figure 18；

Figure 20 is a stereogram, shows the power supply in one embodiment LED straight lamps of the utility model；

Figure 21 is a stereogram, is shown in another embodiment LED straight lamps of the utility model, the circuit board of power supply is vertically It is soldered on the rigid circuit board of aluminum；

Figure 22 is a stereogram, is shown in one embodiment of the utility model, for welding the flexible circuit board of LED lamp panel Thermal head structure chart used in printed circuit board with power supply；

Figure 23 is the block diagram according to the exemplary power module 250 of the LED straight lamps of the utility model some embodiments；

Figure 24 is the block diagram according to the exemplary power module 250 of the LED straight lamps of the utility model some embodiments；

Figure 25 is the block diagram according to the exemplary L ED lamps of the utility model some embodiments；

Figure 26 is the block diagram according to the exemplary power module 250 of the LED straight lamps of the utility model some embodiments；

Figure 27 is the block diagram according to the LED light of the utility model some embodiments；

Figure 28 is the schematic diagram according to the driving circuit of the utility model some embodiments；

Figure 29 A are the block diagram according to the exemplary power module of the LED straight lamps of the utility model some embodiments；

Figure 29 B are the schematic diagram according to the filament artificial circuit of the utility model some embodiments；

Figure 29 C are the block schematic diagram according to the filament artificial circuit of the utility model some embodiments；

Figure 29 D are the block schematic diagram according to the filament artificial circuit of the utility model some embodiments；

Figure 29 E are the schematic diagram according to the filament artificial circuit of the utility model some embodiments；

Figure 29 F are the block schematic diagram according to the filament artificial circuit of the utility model some embodiments.

Specific implementation mode

It explains to the exemplary embodiment of the utility model below in conjunction with attached drawing, including the utility model reality The various details of mode are applied to help understanding, they should be thought only exemplary.Therefore, ordinary skill people Member is it should be appreciated that various changes and modifications can be made to embodiment described herein, without departing from the utility model Scope and spirit.Equally, for clarity and conciseness, the description to known function and structure is omitted in following description.

Present disclose provides a kind of new LED straight lamps.The disclosure is described in the following embodiments with reference to the accompanying drawings.This The following description of the various embodiments of the utility model presented in text is only used for diagram and exemplary purpose, without being intended to It is exclusive or be limited to exact form disclosed.These example embodiments are only example, and are not needed provided herein Many embodiments of details and variation are possible.It should again be emphasized that present disclose provides the details of alternative exemplary, still What these were substituted displays not exclusively.Moreover, the consistent of any details between various examples should be understood to need this The details of sample, it is unpractiaca to display each possible variation for each feature described herein after all.Determining this It should refer to the record in claims when the requirement of utility model.

In the accompanying drawings, the size and relative size of component can amplify in order to clear.In entire attached drawing, identical attached drawing Label refers to identical element.

Technical term used herein is just for the sake of description specific embodiment, without being intended to limit this practicality newly Type.In term as used herein, singulative "a" or "an" is intended to also include plural form, unless context understands Ground it is further noted that.In term as used herein, term "and/or" includes in one or more associated listed terms Either term and all combinations, and "/" can be abbreviated as.

It should be understood that although may have been used term first, second, third, etc. herein describe various elements, component, Region, layer or step, but these elements, component, region, layer and/or step do not answer it is limited by these terms.Unless context It is further noted that otherwise these terms are only used to by an element, component, area, floor or step and another element, component, region, floor Or step distinguishes, such as naming convention.Therefore, without departing from the introduction of the utility model, exist below First element, component, area, floor or the step discussed in a chapters and sections in specification in another chapters and sections of specification or can be weighed Profit is named as second element, component, region, layer or step in requiring.In addition, in some cases, even if in the description Without using the Terminologies such as " first ", " second ", but the term may be still referred to as " first " or " in detail in the claims Two " are distinguished from each other with the different elements to record.

It will also be appreciated that when using term " include " or " contain " in the description, these terms are enumerated recorded Feature, region, integer, step, operation, the presence of element and/or component, but be not excluded for one or more of the other feature, Region, integer, step, operation, element and/or component presence or addition.

It should be understood that when element is referred to as " connecting " or when " coupled " to another element or another element "upper", which can To be directly connected or coupled on another element or another element, or may exist intermediary element.On the contrary, when element is referred to as When " being directly connected to " or " directly coupling " is to another element, intermediary element is not present.For describe the relationship between element its Its word should in a similar way (for example, " between " with " directly between ", " adjacent " and " direct neighbor " etc.) explain.So And terms used herein " contact " refer to and are in direct contact (that is, touching), unless context it is further noted that.

Embodiment described herein will be described by ideal schematic diagram reference plane figure and/or sectional view.Therefore, Example view may depend on manufacturing technology and/or tolerance is modified.Therefore, the disclosed embodiments are not limited in the view It is those of shown, and it is included in the modification of the configuration formed on the basis of manufacturing process.Therefore, exemplary region can in figure Shape with illustrative nature, and region shown in the figure exemplary can enumerate the shape in the region of element, but this practicality is new The various aspects of type are not limited to this.

Herein can be used spatially relative term, such as " ... under ", " lower section ", "lower", " top ", "upper" in order to The relationship of an elements or features and another elements or features shown in attached drawing is described.It will be appreciated that except being retouched in attached drawing Except the orientation painted, spatially relative term is intended to cover the different orientation of device in use or operation.For example, if in attached drawing Device be reversed, then being described as be in the elements or features of other elements or features " below " or " under " will be oriented to In other elements or features " top ".Therefore, term " lower section " can cover above and below orientation.Described device can be with it Its mode is orientated and (is rotated by 90 ° or in other orientations), and the opposite description in space used herein all should be solved correspondingly It releases.

The term used when herein by reference to orientation, layout, position, shape, size, quantity or other measurements such as " identical ", " equal ", " plane " or " coplanar " is not necessarily mean that lucky same orientation, layout, position, shape, size, quantity or other Measurement, but be intended to cover for example due to the almost the same orientation within the scope of acceptable variation caused by manufacturing process possibility, cloth Office, position, shape, size, quantity or other measurements.Term " basic " can be used to reflect the meaning herein.

Term such as "about" or "approximately" can reflect only in a manner of relatively small and/or not significantly change the behaviour of certain elements Make, size, orientation or the layout of the form variation of function or structure.For example, can cover for example from the range of " about 0.1 to about 1 " Near 0.1 deviation 0%-5% and near 1 deviation 0% to 5% range, especially if this deviation maintain and institute The identical influence of row range.

Unless otherwise defined, all terms (including technical and scientific term) used herein have field described in the disclosure The normally understood identical meaning of those of ordinary skill.It should also be understood that term, such as those are answered defined in common dictionary When being interpreted as having the meaning consistent with their meanings in the context of related field and/or the application, and do not answer It is explained with meaning that is Utopian or excessively formalizing, unless being clearly so defined herein.

As used herein, the item for being described as " being electrically connected " is configured so that electric signal can be transmitted to from one Another.Therefore, passive isolation component is physically connected to (for example, the prepreg layer of printed circuit board, insulating binder connect Two devices, insulating bottom layer filler or mold layer etc.) passive conductive component (for example, conducting wire, pad, internal electric circuit etc.) It is not connected electrically to the component.In addition, the item " being directly electrically connected " each other is such as led by one or more passive elements The electrical connections such as line, pad, internal electric circuit, resistance.In this way, directly electrical connection component is not comprising all by active component The component being electrically connected such as transistor or diode.

It is described as being thermally connected or the component of thermal communication is arranged into so that heat can follow the path between component, to permit Perhaps heat is transmitted to second component from first component.Simply because the part that two components are identity unit or plate can not make it Be thermally connected.Generally, heat conduction or the component that is directly connected to other heat conduction or generating component (or connected by intermediate thermal conductivity component It is connected to these components or so close to a large amount of transmission for alloing heat) it will be described as being thermally connected to these components, or and this A little component thermal communications.In contrast, two components of heat insulator are not described as being connected thermally to one another or thermal communication between, Wherein the material significantly prevents the heat between two components from transmitting, or subsidiary heat is only allowed to transmit.Term " heat conduction " and discomfort Any material for providing subsidiary heat conduction, and it is intended to the good conductor or known with for passing that finger is typically considered heat Pass the material of the purposes of heat, or the component with the heat conductivility similar with these materials.

Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of LED straight lamps in an embodiment comprising：One fluorescent tube 1, one it is set to the LED lamp panel 2 in fluorescent tube 1, and is respectively arranged on the lamp cap 3 at 1 both ends of fluorescent tube.Plastics fluorescent tube may be used in fluorescent tube 1 Or glass lamp, the size of both ends lamp cap 3 is identical or different.Figure 1A is please referred to, in some embodiments, one end lamp The size of head can be about the 30% to about 80% of other end lamp cap size.

Please referring to Fig. 3 and Fig. 4, in one embodiment of the utility model, the lamp cap 3 of LED straight lamps includes an insulation tube 302, One is sheathed on the heat-conducting part 303 on insulation tube 302, and two hollow conductive pins 301 on insulation tube 302.It is described to lead Hot portion 303 can be the becket of a tubulose.

With reference to Fig. 5, in one embodiment, fluorescent tube 1 further includes diffusion barrier 13, and diffusion barrier 13 is coated and is attached to fluorescent tube On 1 inner peripheral surface, the light that LED light source 202 is exported or sent out is spread by diffusion barrier 13 and is then pierced by fluorescent tube 1.Diffusion barrier 13 arrangement can there are many forms, such as：Coating on the inner peripheral surface or outer wall of fluorescent tube 1, or it is coated on each LED Diffusion coating (not shown) on 202 surface of light source, or cover on the individual diaphragm outside LED light source 202.

In alternative embodiments, the form of the optically diffusion coating of diffusion barrier 13, main component can be calcium carbonate, halogen Calcium phosphate and aluminium oxide is wherein any or in which any combinations.When appropriate for main material adapted using calcium carbonate When solution forms optics diffusion coating, will have the effect of that excellent diffusion and light transmission reach 90% or more.In addition, optically expanding Dissipating the diffusion barrier 13 of coating form can be coated onto on the outer surface of the end region 101 with hot melt adhesive 6, in lamp cap 3 and end region Increased frictional force is generated between 101.Compared with the example of no any optics diffusion coating, the end region with diffusion barrier 13 101 be beneficial for for example preventing lamp cap 3 from surprisingly falling off from fluorescent tube 1.

In one embodiment, optically the constituent of the diffusion barrier 13 of diffusion coating form includes calcium carbonate, phosphoric acid Strontium (such as CMS-5000, white powder), thickener and ceramics activated carbon (such as ceramic active carbon SW-C, colourless liquid). Specifically, in one embodiment, the average thickness of this optics diffusion coating on the inner peripheral surface of glass tube is fallen in about 20 μ Between m to about 30 μm.It can be with about 90% light transmittance using the diffusion barrier 13 of this optics diffusion coating.In general, The range of the light transmittance of diffusion barrier 13 is about 85% to 96%.In addition, this diffusion barrier 13 can also play the role of electric isolution, from And make when fluorescent tube 1 ruptures, reduce the risk that user gets an electric shock.Moreover, this diffusion barrier 13 can provide the hair of LED light source 202 The improved illumination profile uniformity of light avoids so as to shine the rear of light source 202 and the lateral margin of flexible circuit board Dark space, the illumination comfort of room for promotion are formed in fluorescent tube 1.In another possible embodiment, the light transmittance control of diffusion barrier Thickness range is about 200 μm to about 300 μm to system simultaneously between 92% to 94%.

In another embodiment, optics diffusion coating can also calcium carbonate be main material, mix a small amount of reflecting material (such as phosphorus Sour strontium or barium sulfate), thickener, ceramic active carbon and deionized water.The mixture is coated on the inner peripheral surface of glass lamp, The average thickness of coating is fallen between about 20 μm to about 30 μm.Phenomenon is diffused for microcosmic, is that reflection of the light through particle is made With.The grain diameter size of the reflecting materials such as strontium phosphate or barium sulfate can be much larger than the grain size of calcium carbonate.Therefore, selection is applied in diffusion A small amount of reflecting material is added in layer, can effectively increase the diffusion effect of light.

In other embodiments, calcium halophosphate activated by antimony andmanganese or aluminium oxide can also be selected for the main material of diffusion barrier 13.Calcium carbonate The grain size of particle about fall between about 2 μm to 4 μm, and the grain size of the particle of calcium halophosphate activated by antimony andmanganese and aluminium oxide is about respectively fallen in Between about 4 μm to 6 μm between 1 μm to 2 μm.It is whole with calcium carbonate when the claimed range of light transmittance is fallen 85% to 92% For main material optics diffusion coating coat average thickness about at about 20 μm to about 30 μm, in identical light transmittance requirement model It encloses under (85% to 92%), and the average thickness that the optics diffusion coating that calcium halophosphate activated by antimony andmanganese is main material coats can be fallen at about 25 μm To about 35 μm, aluminium oxide, which is the average thickness that the optics diffusion coating of main material coats, can fall at 10 μm to 15 μm.But if Light transmittance demand is up to 92% or more, then thick using calcium carbonate, calcium halophosphate activated by antimony andmanganese or aluminium oxide as the optics diffusion coating of main material Degree then needs thinner.

The main material of optics diffusion coating, corresponding formation may be selected in use occasion according to fluorescent tube 1 and light transmittance demand Thickness.It is noted that the light transmittance of diffusion barrier is higher, user sees that the granular sensation of light source can be more significant.

Further, LED lamp panel 2 can be any one in strip aluminum substrate, FR4 plates or flexible circuit board. When fluorescent tube 1 is glass lamp, to rupture when fluorescent tube using the strip aluminum substrate or FR4 plates of rigidity, such as break in two Afterwards, entire fluorescent tube is still able to remain the state of straight tube, and at this moment user is possible to will be considered that LED straight lamps can also make With and go voluntarily to install, be easy to cause electric shock accidents.For LED lamp panel 2 flexible base board because increase it is flexible with it is pliable Qu Xing, rigid strip aluminum substrate, FR4 plates or traditional 3 layers of bendable plate face just before pliability and bendability deficiency problem because This is improved.In certain embodiments, LED lamp panel 2 uses flexible circuit board, this LED lamp panel 2 to be ruptured in fluorescent tube 1 It would not allow for the fluorescent tube 1 of rupture to continue to remain straight tube state afterwards, to inform that user LED straight lamps cannot use, keep away Exempt from the generation of electric shock accidents.It is further describing to the flexible circuit board as LED lamp panel 2 below.

Fig. 7 is please referred to, in one embodiment, LED lamp panel 2 includes with the conductive circuit layer 2a arranged in a stacked With the flexible circuit board of dielectric layer 2b, the area equation of dielectric layer 2b and line layer 2a.LED light source 202 is arranged on On a surface of line layer 2a, dielectric layer 2b is arranged on another surface opposite with LED light source 202 of line layer 2a. Line layer 2a is electrically connected to power supply 5 that DC current is allowed to pass through.Meanwhile dielectric layer 2b is on the surface opposite with line layer 2a Then it is adhered to by bonding agent piece 4 on the inner peripheral surface of fluorescent tube 1.Line layer 2a can be metal layer, or be furnished with conducting wire (such as copper Line) bus plane.

Please continue to refer to Fig. 2, in one embodiment, LED lamp panel 2 is equipped with several LED light sources 202, is equipped in lamp cap 3 Power supply 5 passes through 2 electrical communication of LED lamp panel between LED light source 202 and power supply 5.Power supply 5 can be for individually integrated unit (i.e. All power source means are all integrated in a modular unit), and in the lamp cap 3 of 1 one end of fluorescent tube；Or power supply 5 can also It is divided into two individual units (i.e. all power source means are divided into two parts), and two individual units is respectively arranged on lamp In the lamp cap 3 at pipe both ends.If fluorescent tube 1 only has one end by glass tempering processing reinforcing, power supply 5 is preferentially selected as single collection At unit, and set on fluorescent tube 1 strengthen end corresponding to lamp cap 3 in.

It please refers to Fig. 2 and combines Figure 20, in one embodiment, there is male plug 51, the other end to have metal for one end of power supply 5 The end of pin 52, LED lamp panel 2 is equipped with female plug 201, and lamp cap 3 is equipped with the hollow conductive pin 301 for connecting external power supply. The male plug 51 of power supply 5 is inserted in the female plug 201 of LED lamp panel 2, and metallic pin 52 is inserted in the hollow conductive pin 301 of lamp cap 3 It is interior.Male plug 51 and female plug 201 are equivalent to adapter at this time, for power supply 5 and LED lamp panel 2 to be electrically connected.When metallic pin 52 After being inserted into hollow conductive pin 301, hollow conductive pin 301 is impacted by external stamping tool so that hollow conductive pin 301 occurs Slight deformation to which the metallic pin 52 on power supply 5 is fixed, and is electrically connected to hollow conductive pin 301.It is powered When, electric current passes sequentially through hollow conductive pin 301, metallic pin 52, male plug 51 and female plug 201 and reaches LED lamp panel 2, and passes through LED lamp panel 2 reaches LED light source 202.However, the power supply 5 of the utility model is not limited to modular pattern shown in Figure 20.Power supply 5 It can be a printed circuit board equipped with power supply module, then electrically be connected with male plug 51, the connection type of female plug 201 and LED lamp panel 2 It connects.

In another embodiment, the connection between any type of power supply 5 and LED lamp panel 2 can also be beaten with conventional wires Line mode replaces above-mentioned male plug 51 and female plug 201.Further, plain conductor can coat an insulating sleeve to protect user From getting an electric shock.But the mode of conducting wire routing connection is easy to be broken in transportational process, and may therefore lead to quality problems.

If the both ends of flexible circuit board are fixed on the inner peripheral surface of fluorescent tube 1, pay the utmost attention in LED lamp panel 2 can Setting female plug 201 on formula circuit board is scratched, and power supply is provided to realize the connection between LED lamp panel 2 and power supply 5 by male plug 51. In this case, the male plug 51 of power supply 5 is inserted into female plug 201 and realizes electrical connection.

If LED lamp panel 2 is not fixed along the axial both ends of fluorescent tube 1 on the inner peripheral surface of fluorescent tube 1, and LED lamp panel 2 uses Conducting wire connects and is connected to power supply 5, then is easy to happen shaking during subsequent move, thus makes it possible to conducting wire Fracture.Therefore LED lamp panel 2 and the connection type of power supply 5 are preferentially selected as welding.Referring in particular to Fig. 6, can directly will include can The end of the LED lamp panel 2 of flexible electric circuit board is welded in after crossing the transition region 103 of reinforcing on the output end of power supply 5, removes conducting wire from Use, improve the stability of product quality.Female plug 201 need not be arranged in LED lamp panel 2 at this time, and the output end of power supply 5 is also not required to Male plug 51 is set.

As shown in figure 8, the output end of the printed circuit board of power supply 5 can be reserved to pad a, and tin is stayed on pad a, made The thickness for obtaining the tin on pad is enough to form welding point.Correspondingly, also reserving pad b on the end of LED lamp panel 2.It will be electric Pad a and the pad b of LED lamp panel 2 on the output end of the printed circuit board in source 5 weld together via the scolding tin on pad a. Pad a and pad b can in the welding process face-to-face so that the connection of the printed circuit board of LED lamp panel 2 and power supply 5 is the most It is firm.But such welding generally comprises thermal head and is pressed in the back side of LED lamp panel 2 and heats solder, i.e. LED lamp panel 2 Between thermal head and scolding tin, it is easier the problem of reliability occur.It as shown in figure 13, can be every in LED lamp panel 2 Through-hole is formed in one pad b, to allow pad b in not aspectant covering pad b, and as pad a and pad b The scolding tin on pad a when being vertically aligned on the surface of the printed circuit board in thermal head direct piezoelectricity source 5.This is on Practical Operation It is relatively easy to realize.

It is attached and is fixed on the inner peripheral surface of fluorescent tube 1 as shown in figure 8, LED lamp panel 2 is most of, and the both ends of LED lamp panel 2 It is to be not fixed on the inner peripheral surface of fluorescent tube 1, the LED lamp panel 2 being not fixed on 1 inner peripheral surface of fluorescent tube is formed as free extension 21. One in free extension 21 has above-mentioned pad b.When assembling LED straight lamps, freely extending end portion 21 and power supply 5 Printed circuit board and LED lamp panel 2 being welded to connect by bending, curling or deformation to be cooperatively received in inside fluorescent tube 1.It is worth It is noted that when pressing from both sides the structure of a dielectric layer 2b between there are two sandwich circuit layers as the flexible circuit board of LED lamp panel 2, Freely extending end portion 21 can be used for realizing the connection between two sandwich circuit layers and the circuit layout of arrangement power supply module.

In the present embodiment, when LED lamp panel 2 and power supply 5 connect, pad b and a and 202 place surface of LED light source are towards same One direction, and through-hole e as shown in fig. 13 that is formed on the pad b in LED lamp panel 2 so that pad b and pad a is interconnected. When freedom portion 21 is deformed due to shrink or crimping, the welded connection between the printed circuit board and LED lamp panel 2 of power supply 5 To power supply 5, there are one lateral pulling force.Further, it is to face compared to the pad b in the pad a of power supply 5 and LED lamp panel 2 The case where face, there are one downwards to power supply 5 for the welded connection between the printed circuit board and LED lamp panel 2 of power supply 5 here Pulling force.This downward pulling force comes from the solder in through-hole e and forms one between power supply 5 and LED lamp panel 2 and more strengthen And firm electrical connection.

As shown in figure 9, the pad b of LED lamp panel 2 be two unconnected pads, respectively with the pliability of LED light source 202 Circuit board positive and negative anodes are electrically connected.The size of pad b e.g., about 3.5 × 2mm².Also have on the printed circuit board of power supply 5 and its Corresponding pad a, pad a have reserved tin, the thickness of tin to can be about 0.1 to 0.7mm, are about in some preferred embodiments 0.3 to about 0.5mm, it is about 0.4mm in some more preferred embodiments.One insulated vias c can be set between two pad b, Two pads are avoided to cause electric short circuit because scolding tin is welded together during the welding process.In addition, after insulated vias c Location hole d can be also arranged in side, for allowing automatic welding board that can quickly judge the correct position of pad b.

In order to reach compatibility and subsequently use upper extendibility, the quantity of pad b can have more than one, such as 2,3,4 or 4 or more.When only 1 pad b is arranged in every one end of LED lamp panel 2, LED lamp panel 2 corresponds to two End can be all electrically connected with power supply 5 respectively, and to form primary Ioops, various electronic components can be used at this time.For example, being replaced with inductance Capacitance is as current stabilization component.As shown in Figure 10 to 28, when the pad that every one end of LED lamp panel 2 has is 3, the 3rd pad It may be used as ground connection to use, when the pad that every one end of LED lamp panel 2 has is 4, the 4th pad can be used for making signal Input terminal.Correspondingly, in some embodiments, the pad a that light source 5 has should be identical with the pad b quantity on LED light plate 2. During some are implemented, when pad is 3 or more, the arrangement between pad can be one to arrange side by side or line up two row, according to actually making The accommodating size of used time configures in position, as long as the electric short circuit between pad b can be avoided.In other implementations In example, by rearranging circuit on the flexible circuit board of LED lamp panel 2, the bendable circuit of LED lamp panel 2 can be reduced The quantity of pad b on plate.Number of pads is fewer, and flow is more saved in technique.On the other hand, number of pads is more, LED light The electrical connection fixation of the output end of plate 2 and power supply 5 more enhances.

As shown in figure 13, in other embodiments, the inside of pad b can have the structure of welding perforation e, welding perforation The diameter of e can be about 1 to 2mm, preferably about 1.2 to 1.8mm, most preferably about 1.5mm.Perforation e is welded by pad a and pad b Connection is so that the tin on pad a passes through welding perforation e and eventually arrives at pad b.Smaller welding perforation e makes tin be not easy to wear More.Then the tin of welding can be deposited in cooling above welding perforation e and condense, formation has across the welding perforation e More than the ball structure g of welding perforation e diameters.This ball structure g can play seem rivet function, further increase power supply The stability of the electrical connection between pad b on pad a on 5 and LED lamp panel 2.

As shown in Figure 14 to Figure 15, in other embodiments, when the welding of pad b perforates e apart from the edge of LED lamp panel 2 When≤1mm, the tin of welding can be deposited in through-hole top edges across the through-hole e, and excessive tin also can be on pad b It overflows to flow back toward lower section along the edge of LED lamp panel 2 and converge with the tin on the pad a of power supply 5.Then, the tin is solidifying Knot with formed be like a rivet structure to firmly following closely LED lamp panel 2 on the circuit board of power supply 5, have reliable Electric linkage function.As shown in FIG. 16 and 17, in another embodiment, welding notch f can replace welding perforation e, weldering The welding notch f of disk is at the edge of pad b, and the tin of welding through the welding notch f and is deposited in welding notch f Around, it can be formed with the soldered ball for being more than welding notch f diameters after cooling condense.This ball structure can be formed C-shaped rivet allows the crystallized ability of connecting structure for electrical equipment to enhance.

Above-mentioned welding perforation e or notch f is formed before can welding, or during the welding process directly with such as Figure 22 institutes The thermal head shown is punched.Its surface contacted with scolding tin of the thermal head can be plane, concave surface, convex surface or these combinations； And the thermal head can be strip or latticed for limiting the surface of object to be welded such as LED lamp panel 2.Heat The surface of pressure head contacted with scolding tin not exclusively covers perforation e or notch f, to ensure that scolding tin can be worn from perforation e or notch f Go out.The recess portion of thermal head can provide the accommodating position of soldered ball.

Figure 18 and Figure 19 are please referred to, in other embodiments, can replace by using circuit board assemblies 25 and weld Mode connects LED lamp panel 2 and power supply 5.Circuit board assemblies 25 have a long circuit board 251 and a short circuit board 253, long circuit Plate 251 and short circuit board 253 are bonded each other, and short circuit board 253 is located at 251 adjacent peripheral edges of long circuit board.Have on short circuit board 253 There is power supply module 250, power supply 5 is constituted to be formed.The longer circuit board 251 of 253 material of short circuit board is hard, to reach Power Support mould The effect of group 250.

Long circuit board 251 can be the flexible circuit board of LED lamp panel, and have line layer 2a shown in Fig. 7.LED light The mode of line layer 2a and power supply module 250 electrical connection of plate 2 can have different modes according to actual use situation.Such as Figure 18 institutes Show, power supply module 250 and 251 upper wiring layer 2a of long circuit board are all positioned at the same side of short circuit board 253 so that power supply module 250 directly connect with long circuit board 251.As shown in figure 19, optionally, 251 upper wiring layer 2a of power supply module 250 and long circuit board It is located at the both sides of short circuit board 253 so that power supply module 250 and short circuit board 253 are directly connected to and by short circuit Plate 253 and the line layer 2a of LED lamp panel 2 are directly connected to.

As shown in figure 18, in one embodiment, first long circuit board 251 and short circuit board 253 are bonded together, then will be electric Source module 250 is installed on the line layer 2a of the long circuit board 251 as LED lamp panel 2.In addition, the long circuit board of LED lamp panel 2 251 are not limited in a line layer 2a as above-mentioned.Light source 202 be set to LED lamp panel 2 line layer 2a on, by line layer 2a with 5 electrical communication of power supply.As shown in figure 19, in another embodiment, the long circuit board 251 of LED lamp panel 2 may include a line layer A 2a and dielectric layer 2b.Can dielectric layer 2b first be attached into short circuit board 253, and then line layer 2a is attached to dielectric On layer 2b and extend on short circuit board 253.The above various embodiments, all without departing from the application of the utility model circuit board group component Range.

In the above embodiments, the length of short circuit board 253 may be about 15 millimeters to about 40 millimeters, and preferably about 19 Millimeter is to about 36 millimeters, and the length of long circuit board 251 can be about 800 millimeters to about 2800 millimeters, and preferably about 1200 millimeters extremely About 2400 millimeters.The ratio of short circuit board 253 and long circuit board 251 can be, for example, about 1:20 to about 1:200.

When the end of LED lamp panel 2 is not secured on the inner peripheral surface of fluorescent tube 1, LED lamp panel 2 and power supply 5 pass through welding side The connection of formula, which cannot be fixed, supports power supply 5, and the setting of power supply 5 may be necessary in 3 inside of lamp cap.For example, need to Longer lamp cap is wanted to have enough space to receive power supply 5.But the total of LED straight lamps will fixed according to product standard The length of fluorescent tube is reduced under the premise of length, and therefore may reduce effective light-emitting area.

1 is please referred to Fig.2, in one embodiment, replaces flexible circuit board using the rigid circuit board of aluminum 22 so that hard The end of formula circuit board 22 or terminal can be mounted on the end of fluorescent tube 1, and power supply 5 then uses the printed circuit board of power supply 5 uneven The mode gone and be perpendicular to rigid circuit board 22 is weldingly fixed on 22 1 ends of rigid circuit board or terminal, in longitudinal side The space for lamp cap is saved upwards.Welding procedure can be more convenient to realize and the efficient lighting area of LED straight lamps also may be used Retain.In addition, the conductive pin 53 for being electrically connected with lamp cap 3 can be formed directly on power supply 5 without additionally in electricity Other plain conductors are welded between source 5 and hollow conductive pin 301, as shown in figure 3, and this facilitate the manufactures of LED straight lamps.

The circuit design of power supply module 250 and the example of application will be illustrated next.

Figure 23 is the block schematic diagram according to the power supply module of the LED straight lamps of the utility model embodiment.Referring to Figure 23, AC power 508 is provided for AC power signal, and AC power 508 can be alternating current, voltage range such as 100- 277V, frequency are, for example, 50 or 60Hz.Lamp tube drive circuit 505 receives the AC power signal of AC power 508, and is converted into Alternating-current driving signal is using as external drive signal.Lamp tube drive circuit 505 can be, for example, electric ballast, to by alternating current Signal conversion into high frequency, high pressure alternating-current driving signal.The type of common electronics ballast, such as：Instantaneous starting type (Instant Start) electric ballast, program actuated type (Program Start) electric ballast, quick-starting direct The LED straight lamps of (Rapid Start) electric ballast etc., the utility model are applicable in.The voltage of alternating-current driving signal is more than 300V, preferable voltage is ranging between about 400-700V.The frequency of alternating-current driving signal is more than 10kHz, and preferable frequency range is Between about 20k-50kHz.LED straight lamps 500 receive external drive signal, and are driven to emit light.In one embodiment, external It includes the alternating-current driving signal from lamp tube drive circuit 505 to drive signal.In one embodiment, LED straight lamps 500 are in In following drive environment, i.e., LED straight lamps 500 are powered at one end lamp cap, lamp cap tool there are two conductive connecting pin 501, 502, two conductive connecting pins 501,502 are couple to lamp tube drive circuit 505, to receive external drive signal.The two of the present embodiment A conductive connecting pin 501,502 is directly or indirectly electrically connected to lamp tube drive circuit 505.

Figure 25 is the circuit box schematic diagram according to the LED light of the utility model one embodiment.Referring to Figure 25, LED light Power supply module mainly include rectification circuit 510, filter circuit 520 and LED drive module 530.Rectification circuit 510 connects Foot 501, pin 502 to receive external drive signal, and carry out rectification, then by output end 511,512 to external drive signal Signal after output rectification.External drive signal in this can be alternating-current driving signal or AC power news in Figure 23 and Figure 24 Number, the operation for being possibly even DC signal without influencing the utility model LED light.Filter circuit 520 and described first whole Current circuit couples, to be filtered signal after rectification to generate signal after filtering, as recorded in claims.Example Such as, filter circuit 520 couples output end 511,512 to receive signal after rectification, and is filtered to signal after rectification, then by Signal after the output filtering of output end 521,522.LED drive module 530 and filter circuit 520 couple, with signal after accepting filter And it shines.For example, LED drive module 530 couples output end 521,522 with signal after accepting filter, then LED is driven to drive mould LED unit (not drawing) in block 530 shines.The explanation of embodiment after this part please refer to.

It is worth noting that, in the drawings, the quantity of output end 511,512 and output end 521,522 is two, and Port between rectification circuit 510, filter circuit 520 and LED drive module 530 for coupling or terminal when practical application The demand that number can be transmitted according to signal between each circuit or device is one or more.

Furthermore each embodiment of the power supply module of LED light shown in Figure 25 and the power supply module of following LED light, except suitable Outside for LED straight lamps shown in Figure 23 and Figure 24, for transmitting the illuminating circuit framework of electric power, example comprising two pins Such as：The lamp holder of a variety of different headlamps such as bulb lamp, PAL lamps, intubation energy-saving lamp (PLS lamps, PLD lamps, PLT lamps, PLL lamps etc.) Specification is applicable in.

Figure 26 is the block diagram according to the power supply module 250 of the LED straight lamps of the utility model embodiment.Referring to Figure 26, AC power 508 is providing AC power signal.Lamp tube drive circuit 505 receives AC power signal, and is converted into exchanging Drive signal.LED straight lamps 500 receive the alternating-current driving signal of lamp tube drive circuit 505, and are driven to emit light.In this implementation In example, LED straight lamps 500 are both-end (each double pins) power supply, and one end lamp cap of fluorescent tube has pin 501, pin 502, another Hold lamp cap that there is pin 503, pin 504.Pin 501, pin 502, pin 503 and pin 504 are coupled to lamp tube drive circuit 505 to receive alternating-current driving signal jointly, to drive the LED unit (not drawing) in LED straight lamps 500 to shine.AC power 508 can be alternating current, and lamp tube drive circuit 505 can be stabilizer or electric ballast.

Figure 27 is the block diagram according to the LED light of the utility model embodiment.Referring to Figure 27, the power supply module master of LED light To include rectification circuit 510, filter circuit 520, LED drive module 530 and rectification circuit 540.Rectification circuit 510 connects Foot 501, pin 502, to the external drive signal received and rectification pin 501, pin 502 are transmitted；540 coupling of rectification circuit Pin 503, pin 504, to the external drive signal received and rectification pin 503, pin 504 are transmitted.That is, The power supply module of LED light can include rectification circuit 510 and rectification circuit 540 jointly after output end 511,512 exports rectification Signal.Filter circuit 520 couples output end 511,512 to receive signal after rectification, and is filtered to signal after rectification, then By signal after the output filtering of output end 521,522.LED drive module 530 couples output end 521,522 to interrogate after accepting filter Number, then drive the LED unit (not drawing) in LED drive module 530 to shine.

The LED that the power supply module of the LED light of the embodiment of Figure 27 can be applied to the Double-End Source framework with Figure 26 is straight Spot 500.Significantly, since the power supply module of the LED light of the present embodiment has rectification circuit 510 and rectified current simultaneously Road 540, so the power supply module of LED light can also be applied to the single ended power supply framework of Figure 23, B, to receive external drive signal (including AC power signal, the alternating-current driving signal etc. in previous embodiment).The LED of other embodiment in the present embodiment and text The power supply module of lamp can also be applied to DC signal.

As the deformation of said program, the utility model also provides a kind of LED straight lamps, the power supply mould of the LED straight lamps At least partly electronic component of group is arranged in LED lamp panel.For example, utilizing PEC (printed electronic circuit, PEC：Printed Electronic Circuits) technology will at least partly electronic component printing, be inserted into or be embedded on lamp plate.

In one embodiment of the utility model, the electronic component of power supply module is provided entirely in LED lamp panel.It is made It is as follows to make process：Substrate, which prepares (bendable printed circuit board preparation) → spray printing metal nano ink → spray printing passive components/, to be had Source device (power supply module) → drying/sintering → spray printing interlayer connects convex block → spray insulation ink → spray printing metal nano ink → spray printing passive components and active device (and so on form included multi-layer board) → sprayed surface welded disc → spraying resistance Solder flux welds LED component.

If the electronic component of power supply module is provided entirely in LED lamp panel, only it need to pass through welding at the both ends of lamp plate Conducting wire connects the pin of LED straight lamps, realizes the electrical connection of the pin and lamp plate of LED straight lamps.Do not have to thus be electricity again Substrate is arranged in source module, and then can further optimize the design or arrangement of the lamp cap of LED straight lamps.In some embodiments, Power supply module is arranged at the both ends of lamp plate, reduces influence of the heat of its work generation to LED component to the greatest extent in this way.In the present embodiment In, since no substrate is used to support power supply module in addition to lamp plate, so welding total amount can be substantially reduced, improve power supply module Global reliability.

Another situation is that the part electronic component (such as resistance and/or small size capacitance) of power supply module is printed on LED When on lamp plate, and such as by big device：The electronic components such as inductance and/or electrolytic capacitor are arranged in lamp cap.The making of LED lamp panel Process is same as above.And in this case, by being arranged part electronic component on lamp plate, in rational layout L ED straight lamps Power supply module, to optimize the design of lamp cap.

Figure 28 is the schematic diagram according to the driving circuit of the utility model embodiment.Referring to Figure 28, in the present embodiment, driving Circuit 1630 is decompression DC to-DC switching circuit, including controller 1631 and conversion circuit, and conversion circuit includes inductance 1632, fly-wheel diode 1633, capacitance 1634 and switching switch 1635.Driving circuit 1630 couple filtering output end 521 and 522, signal after the filtering of reception is converted into driving signal, is coupled between drive output 1521 and 1522 with driving LED module.Figure 28 coordinates Figure 18 and Figure 19, short circuit board 253 to include the first short circuit board being connect with 251 both ends of long circuit board And the second short circuit board, and the electronic component in power supply module is respectively set at the first short circuit board and the second short circuit board On.The length dimension of first short circuit board and the second short circuit board can be consistent, can not also be consistent.Generally, the first short circuit The length dimension of plate (the left side circuit board of the right-hand circuit board of the short circuit board 253 of Figure 18 and the short circuit board 253 of Figure 19) is Second short circuit board (right-hand circuit board of the left side circuit board of the short circuit board 253 of Figure 18 and the short circuit board 253 of Figure 19) About the 30%~80% of length dimension.The length dimension of more preferably first short circuit board is the length dimension of the second short circuit board About 1/3~2/3.For example, in one embodiment, the size of the substantially second short circuit board of length dimension of the first short circuit board Half.The size of second short circuit board can be for example between about 15mm~about 65mm (specifically depending on application scenario).In some realities It applies in example, in the lamp cap of one end that the first short circuit board is set to LED straight lamps and the second short circuit board is set to In the lamp cap of the opposite other end of LED straight lamps.

For example, can be on the capacitance of driving circuit, such as 1634 practical application of capacitance in Figure 28 two or with On capacitance be formed in parallel.The capacitance of driving circuit is at least partially or fully set to the of short circuit board 253 in power supply module On one short circuit board, and other components such as rectification circuit, filter circuit, the inductance of driving circuit, controller, switching switch, Diode etc. may be contained on the second short circuit board of short circuit board 253.Since inductance, controller, switching switch etc. are electronics Part or all of capacitance is set to and is detached with the circuit board of high-temperature component or separate circuit by the higher component of temperature in component On plate, helps that capacitance (especially electrolytic capacitor) is made to avoid impacting the service life of capacitance because of the higher component of temperature, carry High capacitance reliability.Further, it can be also spatially separated because of capacitance and rectification circuit and filter circuit, help to reduce EMI Problem.

Figure 29 A are the block diagram according to the power supply module of the LED straight lamps of the utility model embodiment.The present embodiment LED straight lamps include rectification circuit 510 and rectification circuit 540, filter circuit 520 and LED drive module 530, and more increase by two Filament artificial circuit 1560.Two filament artificial circuits 1560, which are respectively coupled between pin 501 and pin 502 and are coupled to, to be connect Between foot 503 and pin 504, to improve the simultaneous of the lamp tube drive circuit such as program actuated type ballast detected with filament Capacitive.

At the beginning of startup, whether the filament that can detect fluorescent tube does not occur normally lamp tube drive circuit with filament detecting The abnormal conditions of short circuit or open circuit.When judging that filament is abnormal, lamp tube drive circuit can stop and enter guard mode.For It avoids making lamp tube drive circuit judge LED light exception without filament due to LED straight lamps, two filament artificial circuits 1560 can To emulate the operation of the actual lamp filaments of fluorescent tube, and so that lamp tube drive circuit is normally started driving LED light and shine.

Figure 29 B are the schematic diagram according to the filament artificial circuit of the utility model embodiment.Filament artificial circuit 1660 wraps Containing capacitance 1663 and resistance 1665 in parallel, and the respective both ends of capacitance 1663 and resistance 1665 are respectively coupled to filament analog end 1661 and 1662.The filament emulation end 1661 and 1662 of please referring also to Figure 29 A, two filament artificial circuits 1660 couple pin 501 and pin 502 and pin 503 and pin 504.During filament detecting process, lamp tube drive circuit exports detection signal It is whether normal to test filament.Detection signal can pass through capacitance 1663 in parallel and resistance 1665 and lamp tube drive circuit is made to judge Whether the filament of LED light is normal.

It is worth noting that, the capacitance of capacitance 1663 is smaller, therefore since lamp tube drive circuit exports high-frequency ac signal To drive LED light, the capacitive reactance (equivalent resistance) of capacitance 1663 to be much smaller than the resistance value of resistance 1665.Thereby, filament artificial circuit 1660 in LED light normal operating, and the power consumed is fairly small and has little influence on the luminous efficiency of LED light.

Figure 29 C are the block schematic diagram according to the filament artificial circuit of the utility model embodiment.In the present embodiment, Rectification circuit 510 and/or rectification circuit 540 in LED light using rectification circuit 810 but omit endpoint conversion circuit, and by lamp Silk artificial circuit 1660 replaces the function of endpoint conversion circuit.That is, the filament artificial circuit 1660 of the present embodiment has lamp simultaneously Silk emulation and endpoint conversion function.Please referring also to Figure 29 A, the filament emulation end 1661 of filament artificial circuit 1660 and 1662 couplings Pin 501 and pin 502 and/or pin 503 and pin 504.The half-wave of rectification unit 815 in rectification circuit 810 connects 819 coupling filament analog end 1662 of point.

Figure 29 D are the block schematic diagram according to the filament artificial circuit of the utility model some embodiments.Compared to Figure 29 C Shown in embodiment, half-wave tie point 819 is changed to coupling filament analog end 1661, and the filament artificial circuit 1660 of the present embodiment Still there is filament emulation and endpoint conversion function simultaneously.

Figure 29 E are the schematic diagram according to the filament artificial circuit of another embodiment of the utility model.Filament artificial circuit 1760 include capacitance 1763 and 1764 and resistance 1765 and 1766.Capacitance 1763 and 1764 is series at filament analog end 1661 And between 1662.It resistance 1765 and 1766 is also series between filament analog end 1661 and 1662, and resistance 1765 and 1766 The tie point of tie point and capacitance 1763 and 1764 couples.The filament of please referring also to Figure 29 A, two filament artificial circuits 1760 are imitative 1661 and 1662 coupling pin 501 of true end and pin 502 and pin 503 and pin 504.It is detected when lamp tube drive circuit exports Signal with test filament it is whether normal when, detection signal can pass through concatenated capacitance 1763 and 1764 and resistance 1765 and 1766 And lamp tube drive circuit is made to judge whether the filament of LED light is normal.

It is worth noting that, in some embodiments, the capacitance of capacitance 1763 and 1764 is small, therefore since fluorescent tube drives electricity Road exports high-frequency ac signal, the capacitive reactance far small concatenated resistance 1765 of concatenated capacitance 1763 and 1764 for driving LED light And 1766 resistance value.Thereby, filament artificial circuit 1760 is in LED light normal operating, the power consumed it is fairly small and almost The luminous efficiency of LED light is not influenced.Furthermore capacitance 1763 or 1765 any open circuit of resistance or short circuit or capacitance 1764 or electricity 1766 any open circuits or short circuit are hindered, detection signal can still flow through filament artificial circuit between filament analog end 1661 and 1662 1760.Therefore, capacitance 1763 or any open circuit of resistance 1765 or short circuit and/or capacitance 1764 or any open circuit or short of resistance 1766 Road, filament artificial circuit 1760 still can normal operation and have quite high serious forgiveness.

Figure 29 F are the block schematic diagram according to the filament artificial circuit of the utility model embodiment.In the present embodiment, whole Current circuit 510 and/or rectification circuit 540 using rectification circuit 810 but omit endpoint conversion circuit, and by filament artificial circuit The function of 1860 substitution endpoint conversion circuits.For example, the filament artificial circuit 1860 of the present embodiment also has filament emulation simultaneously And endpoint conversion function.Filament artificial circuit 1860 has the resistance value of negative temperature coefficient, and the resistance value when temperature is high is less than in temperature Resistance value when spending low.In the present embodiment, filament artificial circuit 1860 contains two negative temperature coefficient resisters 1863 and 1864, string Join and is coupled between filament analog end 1661 and 1662.Please referring also to Figure 29 A, the filament emulation of filament artificial circuit 1860 1661 and 1662 coupling pin 501 of end and pin 502 and/or pin 503 and pin 504.Rectification unit in rectification circuit 810 815 half-wave tie point 819 couples the tie point of negative temperature coefficient resister 1863 and 1864.

When lamp tube drive circuit export detection signal with test filament it is whether normal when, detection signal can pass through negative temperature system It counts resistance 1863 and 1864 and lamp tube drive circuit is made to judge whether the filament of LED light is normal.And negative temperature coefficient resister 1863 and 1864 are gradually increasing because of test signal or preheating program, temperature and reduce resistance value.When lamp tube drive circuit enters normally When state is normally to start LED light, the resistance value of concatenated negative temperature coefficient resister 1863 and 1864 is reduced to relative low value, to Reduce the loss of the power consumption of filament artificial circuit 1860.

The resistance value of filament artificial circuit 1860 preferably drives for 10 ohm or more when room temperature (25 DEG C) and in fluorescent tube When circuit enters normal condition, the resistance value of filament artificial circuit 1860 is down to about 2~10 ohm；More preferably, it is driven in fluorescent tube The resistance value of filament artificial circuit 1860 is down between about 3~6 ohm when circuit enters normal condition.

The utility model LED straight lamps in each embodiment realization with as previously described.It needs to point out, each In embodiment, for same root LED straight lamps, including " fluorescent tube has structure-reinforced end regions ", " LED lamp panel use Flexible circuit board ", " fluorescent tube inner peripheral surface is coated with adhesive film ", " fluorescent tube inner peripheral surface is coated with diffusion barrier ", " Covers have diffusion barrier Piece ", " tube inner wall is coated with reflectance coating ", " lamp cap includes heat-conducting part ", " lamp cap includes magnetic conductive metal piece ", " LED light source has branch Frame ", " utilizing circuit board member connection LED lamp panel and power supply " feature, can be only single in practice or integrally apply, make It obtains and only implements a feature or implement several features simultaneously.

In addition, about " fluorescent tube have structure-reinforced end regions ", " LED lamp panel uses flexible circuit board ", " in fluorescent tube Circumferential surface is coated with adhesive film ", " fluorescent tube inner peripheral surface is coated with diffusion barrier ", " Covers have diffusion barrier sheet ", " tube inner wall is coated with reflection Film ", " lamp cap includes magnetic conductive metal piece ", " LED light source has holder ", " utilizes circuit board member at " lamp cap includes heat-conducting part " (including long circuit board and short circuit board) connects LED lamp panel and power supply ", " rectification circuit ", " filter circuit ", " driving circuit ", " endpoint conversion circuit ", " anti-flicker circuit ", " protection circuit ", " mode switching circuit ", " overvoltage crowbar ", " ballast is detectd Any feature in the features such as slowdown monitoring circuit ", " ballast compatible circuit ", " filament artificial circuit ", " auxiliary power module ", including this Any the relevant technologies point and its modification described in utility model embodiment and any combination of them.

For example, feature " LED lamp panel uses flexible circuit board " may include " flexible circuit board and the power supply Between output end by conducting wire routing connect or the flexible circuit board and the output end of the power supply between weld.In addition, The flexible circuit board includes the storehouse of a dielectric layer and a line layer；Flexible circuit board can be in surface coating printing ink material The circuit protecting layer of material, and realize the function of reflectance coating by increasing width circumferentially.”

For example, feature " fluorescent tube inner peripheral surface is coated with diffusion barrier " may include that " constituent of the diffusion coating includes carbonic acid In calcium, calcium halophosphate activated by antimony andmanganese and aluminium oxide or any combination thereof and thickener and ceramics activated carbon.In addition, the diffusion barrier is also It can be diffusion barrier sheet and cover on outside LED light source.”

For example, feature " tube inner wall is coated with reflectance coating " may include that " light source may be disposed on reflectance coating, be set to institute It states in reflectance coating opening or in the side of the reflectance coating.”

For example, feature " lamp cap includes heat-conducting part " may include " lamp cap may include insulation tube, heat-conducting part inner peripheral surface with Accommodating space is formed between the peripheral surface of fluorescent tube, wherein hot melt adhesive can fill a part for accommodating space or filling completely houses Space." feature " lamp cap includes magnetic conductive metal part " may include that " magnetic conductive metal part can be round or non-circular, and can lead to Setting opening or impression/relief are crossed to reduce the contact area of the peripheral surface of magnetic conductive metal part and the inner peripheral surface of insulation tube.In addition, In insulation tube can also by be arranged support portion, protrusion come reinforce the support to magnetic conductive metal part and reduce magnetic conductive metal part with The contact area of insulation tube.”

For example, feature " LED light source has holder " may include that " light source includes having reeded holder, and be set to LED chip in the groove；The holder has the first side wall arranged along the fluorescent tube length direction, and along the lamp The second sidewall of pipe width direction arrangement, the first side wall are less than the second sidewall.”

For example, feature " utilizing circuit board member connection LED lamp panel and power supply " may include that " sub-assembly of length circuit board has There are a long circuit board and a short circuit board, long circuit board and short circuit board to be bonded fixed by bonding way each other, short circuit board Positioned at long circuit board adjacent peripheral edges.There is power supply module on short circuit board, be integrally formed power supply, short circuit board is than long circuit board Firmly.”

Can be single-ended double pins (totally two pins, other end non-connection pin), both-end in the pin design of power supply module The framework of each list pin (totally two pins), each double pins (totally four pins) of both-end.It singly connects single-ended double pins and both-end are each Under the framework of foot, it is applicable to the rectification circuit design of single rectification circuit.Under the framework of each double pins of both-end, it is applicable to The rectification circuit of double rectification circuits designs, and receives external drive using each any pin of both-end or any single-ended double pins Signal.

That is, the features described above of the utility model can be made to arbitrary permutation and combination, and for LED straight lamps It improves, and only describes above-described embodiment in an illustrative manner.The utility model is without being limited thereto, and new without departing from this practicality Many modifications are possible in the case of type spirit and range defined in the appended claims.

Claims

1. a kind of LED straight lamps include the power supply with printed circuit board and the lamp plate with LED light source, which is characterized in that institute State the electrical connection that printed circuit board and the lamp plate both weld together to realize, and the printed circuit board perpendicular to The lamp plate.

2. LED straight lamps according to claim 1, which is characterized in that the printed circuit board respectively has on the lamp plate Have a pad, the printed circuit board and the lamp plate via the pad solder together with.

3. LED straight lamps according to claim 1, which is characterized in that the power supply is divided into two parts, every partly to all have Printed circuit board, at least partially or fully capacitance being provided on one of printed circuit board in the power supply, another print Other components in addition to the capacitance being provided on printed circuit board in the power supply.

4. LED straight lamps according to claim 1, which is characterized in that the lamp plate is rigid circuit board.

5. LED straight lamps according to claim 1, which is characterized in that the fluorescent tube of the LED straight lamps is glass tube or modeling Expects pipe.

6. LED straight lamps according to claim 1 or 5, which is characterized in that the surface of the light tube of the LED straight lamps has light Diffusion coating.

7. LED straight lamps according to claim 1, which is characterized in that the lamp tube ends of the LED straight lamps have plastics Lamp cap.

8. LED straight lamps according to claim 7, which is characterized in that the length of the Plastic lamp socket of the lamp tube ends is not Together.

9. a kind of LED straight lamps, including fluorescent tube, the LED lamp panel in the fluorescent tube, the lamp for being respectively arranged on the lamp tube ends Head and power supply module, the LED lamp panel are equipped with plurality of LEDs light source, it is characterised in that：

The lamp cap is used to be arranged the end of the fluorescent tube and includes a printed circuit board, and the power supply module is set to the printing On circuit board and with the LED light source electrical communication,

The power supply module includes rectification circuit, filter circuit, driving circuit and filament artificial circuit,

The printed circuit board includes conductive pin, and the power supply module is led through the conductive pin with the hollow of the lamp cap Acusector is electrically connected,

The printed circuit board is perpendicular to the lamp plate, and the LED lamp source is through the printed circuit board and the power supply module Connection,

The filament artificial circuit is electrically connected through the hollow conductive pin of the printed circuit board and the lamp cap.

10. LED straight lamps according to claim 9, which is characterized in that the printed circuit board respectively has on the lamp plate Have a pad, the printed circuit board and the lamp plate via the pad solder together with.

11. LED straight lamps according to claim 9, which is characterized in that the power supply module is arranged in two printed circuits On plate, at least partially or fully capacitance being provided on one of printed circuit board in the power supply, another printed circuit Other components in addition to the capacitance being provided on plate in the power supply.

12. LED straight lamps according to claim 9, which is characterized in that the lamp plate is rigid circuit board.

13. LED straight lamps according to claim 9, which is characterized in that the fluorescent tube of the LED straight lamps be glass tube or Plastic tube.

14. LED straight lamps according to claim 9, which is characterized in that the surface of the light tube of the LED straight lamps has light expansion Dissipate coating.

15. LED straight lamps according to claim 9, which is characterized in that the lamp tube ends of the LED straight lamps have modeling Expect lamp cap.

16. LED straight lamps according to claim 15, which is characterized in that the length of the Plastic lamp socket of the lamp tube ends It is different.

17. LED straight lamps according to claim 9, which is characterized in that

The filament artificial circuit includes the capacitance and resistance of parallel connection；

The both ends of the capacitance and resistance are respectively coupled to two pins of described LED straight lamps the same end.

18. LED straight lamps according to claim 9, which is characterized in that

The filament artificial circuit includes two negative temperature coefficient resisters, connects and is coupled to LED straight lamps the same end Between two pins.

19. LED straight lamps according to claim 9, which is characterized in that

The filament artificial circuit includes the first capacitance, the second capacitance, first resistor and second resistance, wherein：

First capacitance and the second capacitance are series between two pins of LED straight lamps the same end；

The first resistor and second resistance are also series between described two pins；

The tie point of first capacitance and the second capacitance is coupled with the tie point of the first resistor and second resistance.

20. according to any LED straight lamps of claim 9,17 to 19, which is characterized in that the filament artificial circuit Resistance value is 10 ohm or more at 25 DEG C；When the LED straight lamps normally start, the resistance value of the filament artificial circuit is down to 2~10 ohm.

21. LED straight lamps according to claim 9, which is characterized in that the rectification circuit is coupled to the filament emulation Between circuit and the driving circuit.