CN207990255U - A kind of LED straight lamps - Google Patents

Abstract

The utility model proposes a kind of LED straight lamps, realize must fluorescent tube two end caps simultaneously inside lamps and lanterns lamp holder when the security function that is just powered, the danger that guarantee installation personnel does not get an electric shock when mounted.Such LED straight lamps include：Fluorescent tube；Two lamp caps are respectively provided with pin to receive external drive signal；Rectification circuit, to carry out rectification to the external drive signal, to generate rectified signal；Filter circuit, to generate filtered signal；LED drive module is configured to produce drive signal；And detecting module, the LED straight lamps are flowed through to decide whether to end the external drive signal, and there is the first sense terminal and the second sense terminal.When the electric current for flowing through first sense terminal and second sense terminal is greater than or equal to set-mounted electric current, the detecting module conducting；When the electric current for flowing through first sense terminal and second sense terminal is less than the set-mounted electric current, the detecting module cut-off.

Description

A kind of LED straight lamps

The application is application No. is " 201620214221.3 ", and the applying date is " on March 21st, 2016 ", entitled The divisional application of " a kind of LED straight lamps ".

Technical field

The utility model is related to field of lighting appliances, and in particular to a kind of LED straight lamps.

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 traditional 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 service life and compared with low power consuming.Therefore, After considering 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, lamp cap is interior to be equipped with power supply, is electrically connected by circuit board between light source and power supply.However existing LED Straight lamp still has following a few class quality problems to need to solve, such as circuit board is generally rigid plate, after fluorescent tube ruptures, especially in office When portion ruptures, whole LED straight lamp remains in the state of straight tube, and user, which can be mistakenly considered fluorescent tube, to be used, to It goes voluntarily to install, is easy to cause generation and leaks electricity and electric shock accidents.

Furthermore the circuit design of existing LED straight lamps, for meet relevant authentication specifications and with existing daylight Between compatibility of the lamp using the driving framework of electric ballast, fail to provide solution appropriate.For example, daylight Electronic building brick is had no inside lamp, for meeting the UL certifications of lighting apparatus, comparatively simple in the specification of EMI.However, LED straight tubes Lamps and lanterns have considerable electronic building brick in lamp, it is important to consider that the influence caused by layout between each electronic building brick, without Easily meet UL certifications, EMI specification.

Commercially available common electric ballast mainly can be divided into instantaneous starting type (Instant Start) electric ballast, pre- Two kinds of thermal starting type (Program Start) electric ballast.Electric ballast has resonance circuit, driving design and daylight The load characteristic of lamp matches, i.e., electric ballast is capacitive component before lighting in fluorescent lamp, and after lighting is resistive group Part provides corresponding startup program, and fluorescent lamp is allow correctly to light.And LED is non-linear component, the spy with fluorescent lamp Property is entirely different.Therefore, LED straight lamps can influence the resonance design of electric ballast, and cause compatibility issue.It is general and Speech, preheating start-up type electric ballast can detect filament, and traditional LED drive circuit can not be supported and cause detecting failure and It can not start.In addition, electric ballast is equivalent upper for current source, the power supply of the DC to DC converter as LED straight lamps When, it be easy to cause overcurrent-overvoltage or undercurrent is under-voltage, thus cause electronic building brick damage or LED straight lamps that can not stablize offer photograph It is bright.

Come again, LED drivings drive signal used is direct current signal, however the drive signal of fluorescent lamp is the low of alternating current Frequently, the high frequency of low-voltage ac signal or electric ballast, high-voltage AC signal, in addition applied to Emergency Light when, Emergency Light Battery be direct current signal.Voltage, frequency range drop between different driving signal is big, and not simply carrying out rectification can be simultaneous Hold.

And when LED straight lamps are Double-End Source, if one of the both-end of LED straight lamps has been inserted into lamp holder and another When lamp holder is not yet inserted at end, if user touches the metal for being not inserted into lamp holder end or conductive part, it is possible to occur to touch The risk of electricity.

Light emitting diode (i.e. LED straight lamps) fluorescent tube on the market replaces existing lighting device to replace fluorescent lamp at present There are mainly two types of the modes of pipe.

One is the compatible type light-emitting diode lamp tube of ballast (T-LED lamp), in the circuit for not changing original lighting device On the basis of, traditional fluorescent tube is directly replaced with light-emitting diode lamp tube.

Another is ballast bypass type (Ballast by-pass) light-emitting diode lamp tube, saves traditional ballast on circuit Device, and alternating current is directly connected to light-emitting diode lamp tube.The latter is suitable for newly-decorated environment, using new driving circuit and hair Optical diode fluorescent tube.

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

Invention content

The utility model provides a kind of new LED straight lamps and its various aspects (with feature), to solve above-mentioned ask Topic.

A kind of LED straight lamps are provided, is adapted to be mounted in a lamp holder and uses, it is characterised in that include a fluorescent tube；Two lamp caps, It is respectively provided with an at least pin, and the both ends suitable for being respectively coupled to the fluorescent tube, the pin system of two lamp cap is receiving One external drive signal；One first rectification circuit couples the pin of one of two lamp cap lamp cap, is to institute It states external drive signal and carries out rectification, to generate a rectified signal；It is wherein another to couple two lamp cap for one second rectification circuit The pin of one lamp cap is to carry out rectification to the external drive signal simultaneously with first rectification circuit；One filter Wave circuit is coupled with first rectification circuit and the second rectification circuit, be to be filtered to the rectified signal, with Generate a filtered signal；One LED drive module couples with the filter circuit, and believes after being configured to receive the filtering Number and generate a drive signal, the LED drive module includes a LED module, and the LED module is receiving the drive It moves signal and shines；And a detecting module, it is to decide whether that ending the external drive signal flows through the LED straight tubes Lamp, and the detecting module has one first sense terminal and one second sense terminal, the first sense terminal coupling described first Rectification circuit and/or the second rectification circuit, second sense terminal couple the filter circuit；Wherein, when flowing through described first When one electric current of sense terminal and second sense terminal is greater than or equal to set-mounted electric current, the detecting module conducting makes institute It states LED straight lamps and operates in a conducting state；When the electric current for flowing through first sense terminal and second sense terminal is low When the set-mounted electric current, the detecting module cut-off makes the LED straight lamps enter a not on-state.

Preferably, the detecting module includes a switching circuit, a detection pulse generating module, testing result latch electricity Road and a detection decision circuit.The detection decision circuit couple the testing result latch cicuit, the first sense terminal and Second sense terminal, and to detect the signal between first sense terminal and the second sense terminal, by a testing result Signal is sent to the testing result latch cicuit.The detection pulse generating module couples the testing result latch cicuit, And to notify the opportunity point of the testing result latch circuit latches testing result.The testing result latch cicuit couples institute Switching circuit is stated, and is suitable for according to one testing result of testing result signal latch, and the testing result is reflected into institute State switching circuit.The switching circuit according to the testing result, determine first sense terminal and the second sense terminal it Between on or off.

In one embodiment, the detection pulse generating module includes one first capacitor and one second capacitor, one the One resistor and a second resistor, one first buffer, a reverser, a diode and one or door；The first resistor One end of device is coupled to an input terminal of the reverser, and the other end is suitable for couple in a driving voltage；The second resistance One end of device is coupled to an input terminal of first buffer, and the other end is suitable for couple in a reference potential；Two pole The negative terminal of pipe is also coupled to the input terminal of first buffer, and is connected in parallel with the second resistor；Described first One end of capacitor and one end of second capacitor couple jointly, and the common coupling end is suitable for couple in a driving electricity Pressure, and the input terminal of another termination reverser of first capacitor, and the other end of second capacitor Then couple the input terminal of first buffer；And the one of an output end of the reverser and first buffer is defeated Outlet is respectively coupled to described or door two input terminals, and described or door the output end couples the testing result latch cicuit.

In one embodiment, the detection pulse generating module further include a third capacitor, a 3rd resistor device and One second buffer；It is one defeated to couple second buffer for one tie point of the wherein described third capacitor and 3rd resistor device Enter end, and an output end of second buffer couples the common coupling of first capacitor and second capacitor Connect end；The third capacitor and 3rd resistor device are series in use between a driving voltage and a reference potential, and institute It states third capacitor, 3rd resistor device and the second buffer and is suitable for handling the driving voltage to generate input pulse letter Number in the common coupling end, the pulse width of the input pulse signal is equal to a period of time, and in the time cycle It has been terminated that, export a low level in the common coupling end.

In one embodiment, the detection decision circuit couples end and switching circuit coupling described the through a switch One sense terminal, and couple the testing result latch cicuit through a testing result end.In one embodiment, the detection judgement electricity Road includes a comparator and a resistor；The reverse side of the comparator is suitable for receiving a reference level signal, non-invert side It is suitable for couple to switch coupling end and connects second sense terminal through the resistor, and an output end packet of the comparator Containing the testing result end.Preferably, when the signal between first sense terminal and the second sense terminal causes to flow through One electric current of the resistor is enough to make when the level of the non-invert side is higher than the level of the reference level signal, described Comparator generates the testing result signal of high level and is exported by the testing result end；And when first sense terminal with And the second signal between sense terminal causes the electric current for flowing through the resistor to be insufficient to allow in the non-invert side When level is higher than the level of the reference level signal, the comparator generates the low level testing result signal and by institute State the output of testing result end.

In one embodiment, the testing result latch cicuit couples the detection decision circuit through a testing result end, End is latched through a testing result and couples the switching circuit, and couples the detection pulse generation through a pulse signal output end Module；The wherein described testing result latch cicuit includes a D flip-flop, a resistor and one or door；The D types triggering One clock input of device couples the testing result end, and an input terminal (D) is suitable for couple to a driving voltage, the resistor One end is coupled to an output end (Q) for the D flip-flop, and the other end is suitable for couple to a reference potential；And described or door The output end (Q) of the pulse signal output end and the D flip-flop, and tool are respectively coupled to two input terminals There is an output end to couple the testing result and latches end.

In one embodiment, the switching circuit couples first sense terminal, and latching end through a testing result couples institute Testing result latch cicuit is stated, and couples end through a switch and couples the detection decision circuit.In one embodiment, described to open Powered-down road includes a transistor, and the first sense terminal, the testing result described in the transistor couples latch end and described open Close coupling end.

Preferably, when the detection pulse generating module generates a pulse signal, the transistor makes conducting described Detection decision circuit is detected the inspection that end output is latched to determine the testing result latch cicuit in the testing result It is high level or low level to survey result latch signal.When the testing result latch signal is high level, the transistor will It is connected and makes to be connected between first sense terminal and the second sense terminal.And when the testing result latch signal is low level When, the transistor makes cut-off between first sense terminal and the second sense terminal to end.

Preferably, the transistor includes a bipolar junction transistors as a power transistor, and the two-carrier The collector of junction transistor couples first sense terminal, and the testing result that base stage couples latches end, and described in emitter-base bandgap grading coupling Switch coupling end.

In some embodiments, the lamp cap described in one end of the LED straight lamps be inserted into the lamp holder and the other end described in When lamp cap is suspension joint or human body in electrical contact, the testing result signal of the detection decision circuit input low level is described in Testing result latch cicuit, then detection pulse generating module one low level signal of output is electric to testing result latch Road, makes the testing result latch cicuit export low level testing result latch signal so that the switching circuit ends, The cut-off of the wherein described switching circuit makes to end between first sense terminal and the second sense terminal, even if also the LED is straight Spot enters a not on-state.

In some embodiments, when two lamp cap of the LED straight lamps is correctly inserted into the lamp holder, the detection The testing result signal of decision circuit input high level makes the testing result latch to the testing result latch cicuit One testing result latch signal of circuit output high level is so that the switching circuit is connected, wherein the conducting of the switching circuit Make to be connected between first sense terminal and the second sense terminal, even if also the LED straight lamps operate in a conducting state.

Advantageous effect

The LED straight lamps of the utility model, lamp adapter assembly will not be powered before correct be installed in lamps and lanterns, to Electrical shock protection safety appropriate is provided for the user of LED straight lamps or installation personnel.

Description of the drawings

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 stereogram, shows another holder structure in another embodiment of the utility model LED straight lamps；

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

Fig. 7 is a section plan, shows that the bendable circuit of the lamp plate of one embodiment LED straight lamps of the utility model is soft Plate has double-layer structure；

Fig. 8 is a stereogram, shows the bendable circuit soft board of the lamp plate 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 bendable circuit soft board of the lamp plate of one embodiment LED straight lamps of the utility model Pad configuration；

Figure 10 is a plan view, shows that the bendable circuit of the lamp plate of another embodiment LED straight lamps of the utility model is soft Plate has 3 pads in a row side by side；

Figure 11 is a plan view, shows that the bendable circuit of the lamp plate of the utility model another embodiment LED straight lamps is soft Plate has 3 pads in two row side by side；

Figure 12 is a plan view, shows that the bendable circuit of the lamp plate of another embodiment of the utility model LED straight lamps is soft Plate has 4 pads that pad side by side is arranged in one；

Figure 13 is a plan view, shows that the bendable circuit of the utility model still lamp plate of an embodiment LED straight lamps is soft Plate has 4 pads in two row side by side；

Figure 14 is a plan view, shows the bendable circuit soft board of the lamp plate of one embodiment LED straight lamps of the utility model Pad on have hole；

Figure 15 is a section plan, and display utilizes the print of the pad and power supply of the bendable circuit soft board of the lamp plate of Figure 14 The welding process of printed circuit board；

Figure 16 is a section plan, and display utilizes the print of the pad and power supply of the bendable circuit soft board of the lamp plate of Figure 14 The welding process of printed circuit board, wherein the hole on pad is close to the edge of bendable circuit soft board；

Figure 17 is a plan view, shows the bendable circuit soft board of the lamp plate of one embodiment LED straight lamps of the utility model Pad have notch；

Figure 18 is a section plan, shows the enlarged local section of A-A' lines in Figure 17；

Figure 19 is a stereogram, shows that the bendable circuit of the lamp plate of another embodiment LED straight lamps of the utility model is soft The printed circuit board of plate and power supply is combined into a circuit board assemblies；

Figure 20 is a stereogram, shows another configuration of the circuit board assemblies of Figure 19；

Figure 21 is a stereogram, shows the power supply in one embodiment LED straight lamps of the utility model；

Figure 22 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 23 is a stereogram, is shown in another embodiment of the utility model, and the bendable circuit soft board tool of lamp plate is double-deck Line layer；

Figure 24 A are the application circuit side according to the power supply module of the LED straight lamps of the first preferred embodiment of the utility model Block schematic diagram；

Figure 24 B are the circuit box schematic diagram according to the LED light of the first preferred embodiment of the utility model；

Figure 25 A are the circuit diagram according to the rectification circuit of the first preferred embodiment of the utility model；

Figure 25 B are the circuit diagram according to the rectification circuit of the second preferred embodiment of the utility model；

Figure 25 C are the circuit diagram according to the rectification circuit of the utility model third preferred embodiment；

Figure 25 D are the circuit diagram according to the rectification circuit of the 4th preferred embodiment of the utility model；

Figure 26 A are the circuit box schematic diagram according to the filter circuit of the first preferred embodiment of the utility model；

Figure 26 B are the circuit diagram according to the filter unit of the first preferred embodiment of the utility model；

Figure 26 C are the circuit diagram according to the filter unit of the second preferred embodiment of the utility model；

Figure 26 D are the circuit diagram according to the filter unit of the utility model third preferred embodiment；

Figure 26 E are the circuit diagram according to the filter unit of the 4th preferred embodiment of the utility model；

Figure 27 A are the circuit diagram according to the LED module of the first preferred embodiment of the utility model；

Figure 27 B are the circuit diagram according to the LED module of the second preferred embodiment of the utility model；

Figure 27 C are the cabling schematic diagram according to the LED module of the first preferred embodiment of the utility model；

Figure 27 D are the cabling schematic diagram according to the LED module of the second preferred embodiment of the utility model；

Figure 27 E are the cabling schematic diagram according to the LED module of the utility model third preferred embodiment；

Figure 28 A are the circuit box schematic diagram according to the LED light of the second preferred embodiment of the utility model；

Figure 28 B are the circuit box schematic diagram according to the driving circuit of the first preferred embodiment of the utility model；

Figure 28 C are the circuit diagram according to the driving circuit of the first preferred embodiment of the utility model；

Figure 28 D are the circuit diagram according to the driving circuit of the second preferred embodiment of the utility model；

Figure 28 E are the circuit diagram according to the driving circuit of the utility model third preferred embodiment；

Figure 28 F are the circuit diagram according to the driving circuit of the 4th preferred embodiment of the utility model；

Figure 28 G are the circuit box schematic diagram according to the driving circuit of the second preferred embodiment of the utility model；

Figure 28 H are area's line relation schematic diagram according to the voltage Vin and electric current Iout of one preferred embodiment of the utility model；

Figure 29 A are to be shown according to the application circuit square of the power supply module of the LED light of the utility model third preferred embodiment It is intended to；

Figure 29 B are the circuit diagram according to the anti-flicker circuit of one preferred embodiment of the utility model；

Figure 30 A are to be shown according to the application circuit square of the power supply module of the LED light of the 4th preferred embodiment of the utility model It is intended to；

Figure 30 B are the circuit diagram according to the protection circuit of one preferred embodiment of the utility model；

Figure 31 A are to be shown according to the application circuit square of the power supply module of the LED light of the 5th preferred embodiment of the utility model It is intended to；

Figure 31 B are the circuit diagram according to the mode switching circuit of the first preferred embodiment of the utility model；

Figure 31 C are the circuit diagram according to the mode switching circuit of the second preferred embodiment of the utility model；

Figure 31 D are the circuit diagram according to the mode switching circuit of the utility model third preferred embodiment；

Figure 31 E are the circuit diagram according to the mode switching circuit of the 4th preferred embodiment of the utility model；

Figure 31 F are the circuit diagram according to the mode switching circuit of the 5th preferred embodiment of the utility model；

Figure 31 G are the circuit diagram according to the mode switching circuit of the 6th preferred embodiment of the utility model；

Figure 31 H are the circuit diagram according to the mode switching circuit of the 7th preferred embodiment of the utility model；

Figure 31 I are the circuit diagram according to the mode switching circuit of the 8th preferred embodiment of the utility model；

Figure 32 A are the application circuit side according to the power supply module of the LED straight lamps of the 6th preferred embodiment of the utility model Block schematic diagram；

Figure 32 B are the circuit diagram according to the overvoltage crowbar of the utility model preferred embodiment；

Figure 33 A are the application circuit side according to the power supply module of the LED straight lamps of the 7th preferred embodiment of the utility model Block schematic diagram；

Figure 33 B are the application circuit side according to the power supply module of the LED straight lamps of the 8th preferred embodiment of the utility model Block schematic diagram；

Figure 33 C are the circuit box schematic diagram according to the ballast circuit for detecting of the utility model preferred embodiment；

Figure 33 D are the circuit diagram according to the ballast circuit for detecting of the first preferred embodiment of the utility model；

Figure 33 E are the circuit diagram according to the ballast circuit for detecting of the second preferred embodiment of the utility model；

Figure 34 A are the application circuit side according to the power supply module of the LED straight lamps of the 9th preferred embodiment of the utility model Block schematic diagram；

Figure 34 B are the application circuit side according to the power supply module of the LED straight lamps of the tenth preferred embodiment of the utility model Block schematic diagram；

Figure 34 C are the circuit diagram according to the auxiliary power module of the utility model preferred embodiment；

Figure 35 A are the application circuit according to the power supply module of the LED straight lamps of the 11st preferred embodiment of the utility model Block schematic diagram；

Figure 35 B are the circuit diagram according to the detecting module of the utility model preferred embodiment；

Figure 35 C are the circuit diagram according to the detection pulse generating module of the utility model preferred embodiment；

Figure 35 D are the circuit diagram according to the detection decision circuit of the utility model preferred embodiment；

Figure 35 E are the circuit diagram according to the testing result latch cicuit of the utility model preferred embodiment；

Figure 35 F are the circuit diagram according to the switching circuit of the utility model preferred embodiment；

Specific implementation mode

The utility model is on the basis of glass lamp, it is proposed that a kind of new LED straight lamps, to solve in background technology The problem of mentioning and the above problem.It is understandable to enable the above objects, features, and advantages of the utility model to become apparent, under Face is described in detail specific embodiment of the utility model in conjunction with attached drawing.The narration of following various embodiments of the utility model is only Be in order to illustrate and be illustration, be not meant as the whole embodiments of the utility model or limit the invention to specific reality Apply example.

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 lamp plate 2 in fluorescent tube 1, and is respectively arranged on two lamp caps 3 at 1 both ends of fluorescent tube.Plastics fluorescent tube may be used in fluorescent tube 1 Or glass lamp, the size of the lamp cap is identical or different.Figure 1A is please referred to, is differed in the size of the lamp cap Embodiment in, it is preferable that the size of the smaller lamp cap be larger lamp cap size 30% to 80%.

In one embodiment, the fluorescent tube 1 of LED straight lamps is using the glass lamp for having reinforced structure, to avoid traditional glass The problem of the problem of lamp is easily rupturable and rupture causes electric shock accidents because of electric leakage and plastic lantern are easy aging.This practicality is new In each embodiment of type, chemical mode or physics mode can be used to do secondary operation reinforcing to glass system fluorescent tube 1.

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 fixedly arranged on the heat-conducting part 303 on 302 peripheral surface of insulation tube, and two conductive pins 301 on insulation tube 302.It is described Heat-conducting part 303 can be the becket of a tubulose.

When making LED straight lamps, after the end region 101 of fluorescent tube 1 is inserted in lamp cap 3, the end region 101 of fluorescent tube 1 is inserted into The axial length of 3 part of lamp cap accounts for the one third of 303 axial length of heat-conducting part between 2/3rds, and such benefit is： On the one hand, ensureing conductive pin 301 and heat-conducting part 303 has enough creepage distances, and being not easy short circuit both when energization makes one to get an electric shock And cause dangerous；On the other hand, due to the insulating effect of insulation tube 302 so that climbing between conductive pin 301 and heat-conducting part 303 Electrical distance increases, it is easier to make one to get an electric shock by cause dangerous test when high voltage.

Fig. 5 and Figure 22 is please referred to, in another embodiment, the end of lamp cap 3 ' is equipped with a pillar 312, the top of pillar 312 End opens up hole, and outer rim is equipped with the groove 314 that a depth is 0.1 ± 1%mm and is positioned for conductive pin 53.Conductive pin 53 after the hole for being pierced by 3 ' end pillar 312 of lamp cap, bent to be placed on groove 314, then again with a conductive metal Cap 311 covers pillar 312, in this way, conductive pin 53 can be then fixed between pillar 312 and conductive metal cap 311, in In the present embodiment, the internal diameter of conductive metal cap 311 is, for example, 7.56 ± 5%mm, and the outer diameter of pillar 312 be, for example, 7.23 ± 5%mm, and 53 outer diameter of conductive pin is, for example, 0.5 ± 1%mm, therefore conductive metal cap 311 directly can closely cover pillar 312, without additionally coating viscose again, can so complete the electrical connection of power supply 5 and conductive metal cap 311.

Fig. 2,3,12,13 are please referred to, in other embodiments, lamp cap provided by the utility model is equipped with for radiating Hole 304.Thereby, making way for the heat that the power supply module inside lamp cap generates can disperse without causing to be in inside lamp cap The condition of high temperature declines to avoid the reliability of lamp cap internal component.Further, it is arc for the hole of heat dissipation on lamp cap. Further, it is three camber lines not of uniform size for the hole of heat dissipation on lamp cap.Further, the hole on lamp cap for heat dissipation Hole is ascending three gradually changed camber line.Further, can be above-mentioned arc, arc for the hole of heat dissipation on lamp cap The arbitrary collocation of line is constituted.

In other embodiments, in lamp cap include a power supply slot (not shown) for installing power supply module.

In other embodiments, the width of bendable circuit soft board can be widened, since circuit board surface includes ink material The circuit protecting layer of material, and ink material has the function of reflection light, therefore at the position widened, circuit board itself can Play the effect such as 12 function of reflectance coating.Preferably, the length and the fluorescent tube that bendable circuit soft board is circumferentially extended along fluorescent tube 2 Proportional region between the perimeter of 2 inner peripheral surfaces is 0.3 to 0.5.A circuit protecting layer, circuit can be coated outside bendable circuit soft board Protective layer can be a kind of ink material, have the function of increasing reflection, the bendable circuit soft board widened is using light source as starting point To circumferentially extending, the light of light source can be such that light more concentrates by the position widened.

Further, lamp plate 2 can be any one in strip aluminum substrate, FR4 plates or bendable circuit soft board.By It is glass lamp in the fluorescent tube 1 of the present embodiment, if lamp plate 2 uses the strip aluminum substrate or FR4 plates of rigidity, works as fluorescent tube Rupture, such as after breaking in two, 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 use and go voluntarily to install, and be easy to cause electric shock accidents.Since bendable circuit soft board has relatively by force Pliability and flexible characteristic, solve rigid strip aluminum substrate, FR4 plates pliability and bendability deficiency situation, therefore The lamp plate 2 of the present embodiment uses bendable circuit soft board, in this way after fluorescent tube 1 ruptures, i.e., can not support the fluorescent tube 1 of rupture after It is continuous to remain straight tube state, to inform that user LED straight lamps cannot use, avoid the generation of electric shock accidents.Therefore, when After bendable circuit soft board, can alleviate to a certain extent due to glass tube is broken and caused by get an electric shock problem.Below Embodiment is explained using bendable circuit soft board as lamp plate 2.

Fig. 7 is please referred to, the bendable circuit soft board as lamp plate 2 includes one layer of line layer 2a with conductive effect, light Source 202 is set on line layer 2a, is connected to power sourced electric by line layer 2a.Have the line of conductive effect in this description Road floor can be described as conductive layer again.With reference to Fig. 7, in the present embodiment, bendable circuit soft board can also include one dielectric layer 2b, Overlapped with line layer 2a, the area equation of dielectric layer 2b and line layer 2a, line layer 2a are used on the surface opposite with dielectric layer 2b In setting light source 202.Line layer 2a is electrically connected to power supply 5 to allow DC current to pass through.Dielectric layer 2b with line layer 2a Opposite surface is then adhered on the inner peripheral surface of fluorescent tube 1 by bonding agent piece 4.Wherein, line layer 2a can be metal layer, or It is furnished with the bus plane of conducting wire (such as copper wire).

In other embodiments, the outer surface of line layer 2a and dielectric layer 2b can coat a circuit protecting layer, the electricity Road protective layer can be a kind of ink material, have the function of welding resistance and increase to reflect.Alternatively, bendable circuit soft board can be One layer of structure is only made of a sandwich circuit layer 2a, the electricity of one layer of above-mentioned ink material is then coated on the surface of line layer 2a Road protective layer.Whether a sandwich circuit layer 2a structures or two-layer structure (a sandwich circuit layer 2a and one dielectric layer 2b) can take With circuit protecting layer.Circuit protecting layer can also be arranged in a side surface of bendable circuit soft board, such as only with light source Circuit protecting layer is arranged in 202 side.It should be noted that bendable circuit soft board is a sandwich circuit layer structure 2a or is two layers Structure (a sandwich circuit layer 2a and one dielectric layer 2b), hence it is evident that (one layer is pressed from both sides in two sandwich circuit layers than general three-layer flexible substrate Dielectric layer) more flexible and flexibility, therefore, can with the special formed collocation of fluorescent tube 1 (such as:Non- straight lamp), And bendable circuit soft board is tightly attached on 1 tube wall of fluorescent tube.In addition, it is preferable that bendable circuit soft board, which is tightly attached to tube wall, Configuration, and the number of plies of bendable circuit soft board is fewer, then heat dissipation effect is better, and material cost is lower, more environmentally friendly, flexible effect Fruit also has an opportunity to be promoted.

Certainly, the bendable circuit soft board of the utility model is not limited in one layer or double layer circuit plate, in other implementations In example, bendable circuit soft board includes multilayer line layer 2a and multilayer dielectric layer 2b, and dielectric layer 2b can be handed over sequentially with line layer 2a Mistake is overlapped and set on side opposite with light source 202 line layer 2a, and light source 202 is set to the most last layer of multilayer line layer 2a, leads to The most last layer for crossing line layer 2a is connected to power sourced electric.In other embodiments, as the bendable circuit soft board of lamp plate 2 Length is more than the length of fluorescent tube.

Figure 23 is referred to, in one embodiment, bendable circuit soft board as lamp plate 2 includes sequentially from top to bottom one the The thickness of one line layer 2a, a dielectric layer 2b and one second line layer 2c, the second line layer 2c are more than the thickness of first line layer 2a Degree, the length of lamp plate 2 is more than the length of fluorescent tube 1, wherein being not provided with light source 202 in lamp plate 2 and protruding from the terminal region of fluorescent tube 1 On, first line layer 2a and the second line layer 2c penetrate two through holes 203 and 204 electrical communications respectively, but through hole 203 and 204 are not connected to avoid short circuit each other.

Thereby mode can play support first line layer 2a's and dielectric layer 2b since the second line layer 2c thickness is larger Effect, at the same while allowing lamp plate 2 to be attached on the inner tubal wall of fluorescent tube 1 be not likely to produce offset or deformation, to promote manufacturing yield.This Outside, first line layer 2a and the second line layer 2c is electrically connected logical so that the circuit layout on first line layer 2a can extend To the second line layer 2c, make the circuit layout on lamp plate 2 more polynary.Furthermore the circuit location wiring of script becomes from single layer Bilayer, the line layer monolayer area on lamp plate 2, that is, the size in width direction, can further reduce, batch is allowed to be consolidated Brilliant lamp plate quantity can increase, and promote productivity.

Further, it is not provided with light source 202 on lamp plate 2 and protrudes from the first line layer 2a in the terminal region of fluorescent tube 1 And the second line layer 2c, it can also be directly utilized to realize the circuit layout of power supply module, and the directly configuration of power supply module is allowed to exist It is achieved on bendable circuit soft board.

Please continue to refer to Fig. 2, lamp plate 2 is equipped with several light sources 202, and power supply 5, light source 202 and power supply 5 are equipped in lamp cap 3 Between pass through 2 electrical communication of lamp plate.In various embodiments of the utility model, power supply 5 can be that (i.e. all power supply modules are all for single body It is integrated in a component), and in the lamp cap 3 of 1 one end of fluorescent tube；Or power supply 5 can also be divided into two parts, referred to as double Body (i.e. all power supply modules are separately positioned in two components), and two parts are respectively arranged in the lamp cap 3 of lamp tube ends. If fluorescent tube 1 only has one end when making strengthening section processing, power supply is preferentially selected as single body, and the end region 101 after strengthening In corresponding lamp cap 3.

Either single body or double individuals, the generation type of power supply can have Mutiple Choice, for example, power supply can be A kind of embedding module after molding specifically using a kind of silica gel of high heat conduction (thermal coefficient >=0.7w/mk), passes through mould Tool is potted molding to power supply module, obtains power supply, and the power supply that this mode obtains has high insulation, high heat dissipation, shape more The advantage of rule, and can easily coordinate with other structures part.Alternatively, power supply may be not make embedding gum forming, directly Inside exposed power supply module merging lamp cap, or after exposed power supply module is encased with tradition heat-shrink tube, then it is placed in lamp Inside first 3.In other words, in various embodiments of the utility model, power supply 5 can be to carry electricity as shown in Figure 7 with monolithic printed circuit board The form of source module occurs, and also can be to occur in the form of single module as shown in figure 21.

It please refers to Fig. 2 and combines Figure 21, in an embodiment, there is male plug 51, the other end to have metal for one end of power supply 5 The end of contact pin 52, lamp plate 2 is equipped with female plug 201, and lamp cap 3 is equipped with the conductive pin 301 for connecting external power supply.Power supply 5 Male plug 51 is inserted in the female plug 201 of lamp plate 2, and metal ferrule 52 is inserted in the conductive pin 301 of lamp cap 3.51 He of male plug at this time Female plug 201 is equivalent to adapter, for power supply 5 and lamp plate 2 to be electrically connected.After metal ferrule 52 is inserted into conductive pin 301, warp Cross external stamping tool impact conductive pin 301 so that slight deformation occurs for conductive pin 301, to fix the gold on power supply 5 Belong to contact pin 52, and realizes electrical connection.When energization, electric current passes sequentially through conductive pin 301, metal ferrule 52, male plug 51 and mother It inserts 201 and reaches lamp plate 2, and light source 202 is reached by lamp plate 2.However the structure of power supply 5 is then not limited to modularization shown in Figure 21 Pattern.Power supply 5 can be a printed circuit board for being loaded with power supply module, then with male plug 51, the connection type of female plug 201 and lamp Plate 2 is electrically connected.

In other embodiments, the electric connection between the power supply 5 and lamp plate 2 of any pattern can also be beaten with conventional wires Line mode replaces above-mentioned male plug 51 and female plug 201, that is, uses a traditional plain conductor, by one end of plain conductor and electricity Source is electrically connected, and the other end is electrically connected with lamp plate 2.Further, plain conductor can coat an insulating sleeve to protect user to exempt from In electric shock.But it is mode the problem of being possible to have fracture in transportational process of conducting wire routing connection, slightly worse in quality.

In other embodiment, the electric connection between power supply 5 and lamp plate 2 can pass through rivet nail joint, tin cream gluing, welding Or it is directly linked together in such a way that conducting wire bundlees.It is consistent with the fixed form of aforementioned lamp plate 2, bendable circuit soft board A side surface inner peripheral surface of fluorescent tube 1 is bonded and fixed to by bonding agent piece 4, and the both ends of bendable circuit soft board can select It fixes or is not fixed on the inner peripheral surface of fluorescent tube 1.

If the both ends of bendable circuit soft board are fixed on the inner peripheral surface of fluorescent tube 1, pay the utmost attention in bendable circuit Female plug 201 is set on soft board, the male plug 51 of power supply 5 is then inserted into female plug 201 and realizes electrical connection.

If lamp plate 2 is not fixed along the axial both ends of fluorescent tube 1 on the inner peripheral surface of fluorescent tube 1, if connected using conducting wire, During subsequently moving, due to both ends freedom, it is easy to happen shaking during subsequent move, thus makes it possible to conducting wire It is broken.Therefore lamp plate 2 and the connection type of power supply 5 are preferentially selected as welding.It specifically, can be directly by lamp with reference to Fig. 6 Plate 2 is welded in after getting over the transition region 103 of strengthening section structure on the output end of power supply 5, removes the use of conducting wire from, improves product matter The stability of amount.Female plug 201 need not be arranged in lamp plate 2 at this time, and male plug 51 need not be also arranged in the output end of power supply 5.

As shown in figure 8, the specific practice can be that the output end of power supply 5 is reserved power pad a, and on power pad a It stays tin, so that the thickness of tin on pad increases, facilitates welding, correspondingly, also reserving light source pad on the end of lamp plate 2 B, and the power pad a of 5 output end of power supply and the light source pad b of lamp plate 2 are welded together.By the plane definition where pad For front, then lamp plate 2 is docked with the connection type of power supply 5 with the positive pad of the two the most firm, but is welded in welding It is pressed in the back side of lamp plate 2 for pressure head typical case, to heat scolding tin across lamp plate 2, is easier the problem of reliability occur.Such as Fruit is as shown in figure 14, will output hole among 2 positive light source pad b of lamp plate, then it is face-up superimposed upon to 5 front of power supply Power pad a on weld, then weld pressure head and directly scolding tin can be heated and melt, to being relatively easy to reality on Practical Operation It is existing.

As shown in figure 8, in above-described embodiment, the bendable circuit soft board as lamp plate 2 is largely fixed on fluorescent tube 1 It only at both ends is not fixed on the inner peripheral surface of fluorescent tube 1 on inner peripheral surface, is not fixed 2 shape of lamp plate on 1 inner peripheral surface of fluorescent tube At a freedom portion 21, and lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1.Freedom portion 21 has above-mentioned pad b.In assembly, from The one end welded from portion 21 and power supply 5 can drive freedom portion 21 to 1 internal contraction of fluorescent tube.It is worth noting that, when being used as lamp plate 2 Bendable circuit soft board when pressing from both sides the structure of a dielectric layer 2b with two sandwich circuit layer 2a and 2c as shown in figure 23, aforementioned lamp plate 2 It is not provided with light source 202 and the terminal region for protruding from fluorescent tube 1 can be used as freedom portion 21, and freedom portion 21 is allowed to realize two sandwich circuit layers Connection and power supply module circuit layout.

In the present embodiment, when lamp plate 2 and power supply 5 connect, the 202 place surface court of light source on pad b and a and lamp plate Same direction, and through hole e as shown in figure 14 is formed on the pad b on lamp plate 2 so that pad b and pad a phases interconnect It is logical.When the freedom portion 21 of lamp plate 2 is deformed towards the internal contraction of fluorescent tube 1, between the printed circuit board and lamp plate 2 of power supply 5 Welded connection to power supply 5 there are one lateral pulling force.Further, compared to the weldering on the pad a of power supply 5 and lamp plate 2 The aspectant situation of disk b systems, the welded connection between the printed circuit board and lamp plate 2 of power supply 5 here also have one to power supply 5 A downward pulling force.This downward pulling force comes from the solder in through hole e and forms one between power supply 5 and lamp plate 2 more To strengthen and being firmly electrically connected.

As shown in figure 9, the light source pad b of lamp plate 2 is two unconnected pads, it is electrically connected respectively with 202 positive and negative anodes of light source It connects, the size of pad is about 3.5 × 2mm2, also there is pad corresponding thereto, the top of pad on the printed circuit board of power supply 5 Have reserved tin for ease of welding board automatic welding, the thickness of tin can be 0.1 to 0.7mm, preferred values be 0.3 to 0.5mm compared with It is best with 0.4mm to be appropriate.One insulation hole c can be set between two pads, avoid two pads in the process of welding It is middle to cause electrical short because scolding tin is welded together, location hole d can be also set at the rear of insulated hole hole c in addition, for allowing Automatic welding board can correctly judge the correct position of light source pad b.

The light source pad b of lamp plate at least one, respectively with 202 positive and negative anodes of light source be electrically connected.In other embodiments, it is Compatibility can be reached and subsequently use upper extendibility, the quantity of light source pad b can have more than one, such as 2,3 A, 4 or 4 or more.When pad only has 1, lamp plate corresponds to two ends and can all be electrically connected to a power source respectively, to be formed one time Road, the mode replaced at this time using electronic building brick, such as:Replace capacitance as current stabilization component with inductance.In this description, The meaning of " inductance " covers " inductor ", and the meaning of " capacitance " covers " capacitor ", and the meaning of " resistance " covers " resistor ". As shown in Figure 10 to 28, when pad is 3, the 3rd pad may be used as ground connection and use, when pad is 4, the 4th weldering Disk can be used for making signal input part.Correspondingly, power pad a is also identical with light source pad b quantity.When pad is 3 or more When, the arrangement between pad can be a row side by side or line up two row, according to accommodating size configuration in actual use suitable When position, cause short circuit as long as not being electrically connected each other.In other embodiments, if by part circuit production flexible On formula circuit soft board, light source pad b can be one independent, and number of pads is fewer, and flow is more saved in technique；Number of pads is cured More, the electrical connection of bendable circuit soft board and power output end, which is fixed, more to be enhanced.

As shown in figure 14, in other embodiments, the inside of light source pad b can have the structure of welding perforation e, welding The diameter of perforation e can be 1 to 2mm, and preferably 1.2 to 1.8mm, most preferably 1.5mm are too small, and the tin of welding is not easy to pass through. When the light source pad b of the power pad a of power supply 5 and lamp plate 2 weld together, the tin of welding can pass through the welding Perforate e, is then deposited in cooling condensation above welding perforation e, forms the ball structure g for having and being more than welding perforation e diameters, this A ball structure g can play seem nail function, other than being fixed through the tin between power pad a and light source pad b, More it can enhance the firm fixed of electric connection because of the effect of ball structure g.

As shown in Figure 15 to Figure 16, in other embodiments, when the welding of light source pad b perforates e apart from the side of lamp plate 2 When Yuan≤1mm, the tin of welding can be deposited in hole top edges across the hole e, and excessive tin also can be from lamp plate 2 Edge flow back toward lower section, be then coagulated together with the tin on power pad a, structure is like a rivet by lamp plate 2 It firmly follows closely on the circuit board of power supply 5, there is reliable electricity connection function.As shown in FIG. 17 and 18, in other implementations In example, welding notch f is instead of welding perforation e, and the welding perforation of pad is at edge, and the tin of welding penetrates the welding Notch f fixes power pad a and the b electrical connections of light source pad, and tin is easier to climb up light source pad b and be deposited in welding notch f Around, more tin formation are had after cooling condense, and there is the soldered ball for being more than welding notch f diameters, this ball structure can allow The crystallized ability of electric connection structure enhances.In the present embodiment, because of the design of welding notch, it seems C that the tin of welding, which plays, The function of staple.

The welding perforation of pad is whether initially formed, or directly welds pressure head or thermal head during the welding process It punches, the structure described in the present embodiment can be reached.Its surface contacted with scolding tin of the welding pressure head can be plane, Concave surface, convex surface or these combinations；And the surface that the welding pressure head is used to limit be intended to welding object such as lamp plate 2 can be Strip or latticed, the surface contacted with scolding tin not exclusively will perforation coverings, it is ensured that and scolding tin can be pierced by from perforation, When scolding tin, which is pierced by welding perforation, is deposited in welding perforation surrounding, recess portion can provide the accommodating position of soldered ball.In other embodiment In, the bendable circuit soft board as lamp plate 2 has a positioning hole, can be penetrated in welding location hole by power pad a and The pad of light source pad b accurately positions.

Figure 19 and Figure 20 are please referred to, it is in other embodiments, above-mentioned through the fixed lamp plate 2 of welding manner and power supply 5 can be replaced with the circuit board group component 25 equipped with power supply module 250.Circuit board group component 25 has a long circuit board 251 With a short circuit board 253, long circuit board 251 and short circuit board 253 are bonded are fixed through gluing mode each other, short circuit board 253 Positioned at 251 adjacent peripheral edges of long circuit board.There is power supply module 25 on short circuit board 253, be integrally formed power supply.Short circuit board 253 The longer circuit board 251 of material is hard, to have the function that Power Support module 250.

Long circuit board 251 can be above-mentioned bendable circuit soft board or flexible base board as lamp plate 2, and have Fig. 7 institutes The line layer 2a shown.The mode of line layer 2a and power supply module 250 electrical connection of lamp plate 2 can have different according to actual use situation Electric connection mode.As shown in figure 19, the circuit that will be electrically connected with power supply module 250 on power supply module 250 and long circuit board 251 Layer 2a is all located at the same side of short circuit board 253, and power supply module 250 is directly electrically connected with long circuit board 251.Such as Figure 20 institutes Show, the line layer 2a systems being electrically connected with power supply module 250 are located at short electricity on power supply module 250 and long circuit board 251 The both sides of road plate 253, power supply module 250 penetrate the line layer 2a electrical connections of too short circuit board 253 and lamp plate 2.

Figure 24 A are referred to, for according to the application of the power supply module of the LED straight lamps of the first preferred embodiment of the utility model Circuit box schematic diagram.508 system of AC power is providing ac supply signal.Lamp tube drive circuit 505 receives AC power 508 ac supply signal, and it is converted into alternating current drive signal.LED straight lamps 500 receive the exchange of lamp tube drive circuit 505 Drive signal, and be driven to emit light.In the present embodiment, LED straight lamps 500 be both-end (each double pins) power supply, the one of fluorescent tube Hold lamp cap that there is the first pin 501, the second pin 502, other end lamp cap to have third pin 503, the 4th pin 504.First Pin 501, the second pin 502, third pin 503 and the 4th pin 504 are coupled to lamp tube drive circuit 505 and are handed over common reception Drive signal is flowed, to drive the LED component (not drawing) in LED straight lamps 500 to shine.However, in other embodiments, fluorescent tube Every one end lamp cap can have an at least pin, to receive alternating current drive signal.Also it is to reach 500 both-end of LED straight lamps The purpose of energization not necessarily all uses two pins in every one end lamp cap.In the present embodiment, AC power 508 can be Alternating current, voltage range 100-277V, frequency are 50 or 60Hz.Lamp tube drive circuit 505 receives the alternating current of AC power 508 Source signal, and alternating current drive signal is converted into as external drive signal.Lamp tube drive circuit 505 can be electronic ballast Device, the signal of alternating current is converted the alternating current drive signal into high frequency, high pressure.The type of common electronics ballast, such as： Instantaneous starting type (Instant Start) electric ballast, preheating start-up type (Program Start) electric ballast, quickly The LED straight lamps of actuated type (Rapid Start) electric ballast etc., the utility model are applicable in.The electricity of alternating current drive signal Pressure is more than 300V, preferable voltage ranging from 400-700V；Frequency is more than 10kHz, and preferable frequency range is 20k-50kHz.It please join Figure 24 B are seen, for according to the circuit box schematic diagram of the LED light of the first preferred embodiment of the utility model.The power supply mould of LED light Group includes mainly the first rectification circuit 510, filter circuit 520, LED drive module 530 and the second rectification circuit 540, can be with It is applied to the Double-End Source framework of Figure 24 A.First rectification circuit 510 couples the first pin 501, the second pin 502, to receive And the external drive signal that rectification the first pin 501, the second pin 502 are transmitted；Second rectification circuit 540 couples third pin 503, the 4th pin 504, to the external drive signal received and rectification third pin 503, the 4th pin 504 are transmitted. That is the power supply module of LED light can be comprising the first rectification circuit 510 and the second rectification circuit 540 jointly in the first rectification Output end 511, the second rectification output end 512 export rectified signal.Filter circuit 520 couples the first rectification output end 511, the Two rectification output ends 512 are filtered rectified signal with receiving rectified signal, then by output end after the first filtering 521, output end 522 exports filtered signal after the second filtering.LED drive module 530 coupling first filtering after output end 521, After second filtering then output end 522 drives the LED component (not drawing) in LED drive module 530 with signal after accepting filter It shines.

Figure 25 A are referred to, for according to the circuit diagram of the rectification circuit of the first preferred embodiment of the utility model.Rectification Circuit 610 is bridge rectifier, including the first rectifier diode 611, the second rectifier diode 612, third rectifier diode 613 and the 4th rectifier diode 614, to carry out full-wave rectification to received signal.The anode of first rectifier diode 611 The second rectification output end 512 is coupled, cathode couples the second pin 502.Anode the second rectification of coupling of second rectifier diode 612 Output end 512, cathode couple pin 501.Anode the second pin 502 of coupling of third rectifier diode 613, cathode coupling first Rectification output end 511.The anode coupling pin 501 of 4th rectifier diode 614, cathode couple the first rectification output end 511.

When the first pin 501,502 received signal of the second pin are AC signal, the operation description of rectification circuit 610 It is as follows.When AC signal is in positive half-wave, AC signal is sequentially through the first pin 501, the 4th rectifier diode 614 and It is flowed into after one rectification output end 511, and sequentially through the second rectification output end 512, the first rectifier diode 611 and the second pin It is flowed out after 502.When AC signal is in negative half-wave, AC signal is sequentially through the second pin 502, third rectifier diode 613 It is flowed into after the first rectification output end 511, and sequentially through the second rectification output end 512, the second rectifier diode 612 and pin It is flowed out after 501.Therefore, no matter AC signal is in positive half-wave or negative half-wave, the anode of the rectified signal of rectification circuit 610 is Positioned at the first rectification output end 511, cathode is respectively positioned on the second rectification output end 512.Illustrate according to aforesaid operations, rectification circuit The rectified signal of 610 outputs is full wave rectified signal.

When the first pin 501, the second pin 502 coupling DC power supply and when receiving direct current signal, rectification circuit 610 Operation is described as follows.When the first pin 501 couples the negative terminal of the anode of DC power supply and the second pin 502 coupling DC power supply When, direct current signal sequentially flows into after the first pin 501, the 4th rectifier diode 614 and the first rectification output end 511, and according to Sequence flows out after the second rectification output end 512, the first rectifier diode 611 and the second pin 502.When the first pin 501 couples The negative terminal of DC power supply and when the anode of the second pin 502 coupling DC power supply, AC signal is sequentially through the second pin 502, the It is flowed into after three rectifier diodes 613 and the first rectification output end 511, and sequentially through the second rectification output end 512, the second rectification two It is flowed out after pole pipe 612 and the first pin 501.Similarly, no matter how direct current signal is through the first pin 501, the second pin 502 Input, the anode of the rectified signal of rectification circuit 610 are respectively positioned on the first rectification output end 511, and cathode is respectively positioned on the second rectification Output end 512.

Therefore, though the present embodiment 610 received signal of rectification circuit be AC signal or direct current signal, Correct output rectified signal.

Figure 25 B are referred to, for according to the circuit diagram of the rectification circuit of the second preferred embodiment of the utility model.Rectification Circuit 710 includes the first rectifier diode 711 and the second rectifier diode 712, to whole to received signal progress half-wave Stream.The anode of first rectifier diode 711 couples the second pin 502, and negative terminal couples the first rectification output end 511.Second rectification The anode of diode 712 couples the first rectification output end 511, and negative terminal couples the first pin 501.Second rectification output end 512 regards Practical application and can be omitted or be grounded.

Then illustrate that the operation of rectification circuit 710 is as follows.

When AC signal is in positive half-wave, the signal level that AC signal is inputted in the first pin 501 is higher than second The signal level that pin 502 inputs.At this point, the first rectifier diode 711 and the second rectifier diode 712 are in inverse inclined cut Only state, rectification circuit 710 stop output rectified signal.When AC signal is in negative half-wave, AC signal connects first The signal level that foot 501 inputs is less than the signal level inputted in the second pin 502.At this point, the first rectifier diode 711 and Second rectifier diode 712 is in along inclined conducting state, and AC signal is via the first rectifier diode 711, the first rectification Output end 511 and flow into, and flowed out by the second rectification output end 512 or another circuit or ground terminal of LED light.According to above-mentioned behaviour It explains, the rectified signal that rectification circuit 710 exports is half wave rectified signal.

Figure 25 C are referred to, for according to the circuit diagram of the rectification circuit of the utility model third preferred embodiment.Rectification Circuit 810 includes rectification unit 815 and endpoint conversion circuit 541, to carry out halfwave rectifier.In the present embodiment, rectification unit 815 be half-wave rectifying circuit, including the first rectifier diode 811 and the second rectifier diode 812, to carry out halfwave rectifier. The anode of first rectifier diode 811 couples the second rectification output end 512, and negative terminal couples half-wave tie point 819.Second rectification two The anode coupling half-wave tie point 819 of pole pipe 812, negative terminal couples the first rectification output end 511.Endpoint conversion circuit 541 couples Half-wave tie point 819 and the first pin 501 and the second pin 502, to be connect the first pin 501 and the second pin 502 The signal of receipts is transferred to half-wave tie point 819.By the endpoint conversion function of endpoint conversion circuit 541, rectification circuit 810 can be with Two input terminals (endpoint of the first pin 501 of coupling and the second pin 502) and two output end (the first rectification output ends are provided 511 and second rectification output end 512).

Then illustrate that the operation of rectification circuit 810 in certain embodiments is as follows.

When AC signal is in positive half-wave, AC signal is sequentially through the first pin 501 (or second pin 502), end It is flowed into after point conversion circuit 541, half-wave tie point 819, the second rectifier diode 812 and the first rectification output end 511, and by Another circuit of LED light flows out.When AC signal is in negative half-wave, AC signal is simultaneously flowed by another circuit of LED light, so It is connect by the second rectification output end 512, the first rectifier diode 811, half-wave tie point 819, endpoint conversion circuit 541 and first Foot 501 (or second pin 502) flows out afterwards.

It is worth noting that, endpoint conversion circuit 541 can include resistance, capacitance, inductance or combinations thereof, comes while having At least one of functions such as current limliting/pressure limiting, protection, current/voltage adjusting.The explanation of these functions is referred in rear explanation.

In practical application, rectification unit 815 and endpoint conversion circuit 541 can be exchanged without influencing halfwave rectifier function. Figure 25 D are referred to, for according to the circuit diagram of the rectification circuit of the 4th preferred embodiment of the utility model.First rectification, two pole Anode the second pin 502 of coupling of pipe 811, negative terminal the first pin 501 of coupling of the second rectifier diode 812, and the first rectification The anode of the negative terminal of diode 811 and the second rectifier diode 812 couples half-wave tie point 819 simultaneously.Endpoint conversion circuit 541 Couple half-wave tie point 819 and the first rectification output end 511 and the second rectification output end 512.When AC signal is in just half When wave, AC signal is simultaneously flowed by another circuit of LED light, and then through the second rectification output end 512, (or the first rectification exports 511) it, after 541 half-wave tie point 819 of endpoint conversion circuit, the second rectifier diode 812 and the first pin 501 flows out at end.When When AC signal is in negative half-wave, AC signal is sequentially through the second pin 502, the first rectifier diode 811, half-wave tie point 819, endpoint conversion circuit 541 and the first rectification output end 511 (or second rectification output end 512) flow into afterwards, and by LED light Another circuit outflow.

It is worth noting that can be omitted with endpoint conversion circuit 541 in embodiment shown in Figure 25 C and Figure 25 D, Therefore it is indicated with dashed lines.After Figure 25 C omit endpoint conversion circuit 541, the first pin 501 and the second pin 502 are coupled to half-wave Tie point 819.After Figure 25 D omit endpoint conversion circuit 541, the first rectification output end 511 and the coupling of the second rectification output end 512 To half-wave tie point 819.

The first pin 501 and the second pin 502 of rectification circuit shown in Figure 25 A to Figure 25 D are changed to third pin 503 and when four pins 504, you can as the second rectification circuit 540 shown in Figure 24 B.

Then Figure 24 B are arranged in pairs or groups to illustrate the selection and combination of the first rectification circuit 510 and the second rectification circuit 540.

The first rectification circuit 510 and the second rectification circuit 540 of Figure 24 B illustrated embodiments can then use Figure 25 A to figure Any rectification circuit in 25D, and rectification circuit shown in Figure 25 C and Figure 25 D can also omit endpoint conversion circuit 541 and The rectification function needed for the operation of LED straight lamps is not influenced.When the first rectification circuit 510 and the second rectification circuit 540 select figure When the rectification circuit of the halfwave rectifier of 25B to Figure 25 D, as AC signal is in positive half-wave or negative half-wave, the first rectification circuit 510 and second rectification circuit 540 one of them be responsible for inflow, another responsible outflow.Furthermore the first rectification circuit 510 and second If rectification circuit 540 selects Figure 25 C or Figure 25 D or Figure 25 C and Figure 25 D each one simultaneously, the endpoint conversion electricity of one of them Road 541 can have the function of that current limliting/pressure limiting, protection, current/voltage are adjusted, and another endpoint conversion circuit 541 can be omitted.

Figure 26 A are referred to, for according to the circuit box schematic diagram of the filter circuit of the first preferred embodiment of the utility model. The first rectification circuit 510 is drawn in figure only to indicate connection relation, not filter circuit 520 includes the first rectification circuit 510. Filter circuit 520 includes filter unit 523, couples the first rectification output end 511 and the second rectification output end 512, whole to receive The rectified signal that current circuit is exported, and export filtered signal after filtering out the ripple in rectified signal.Therefore, after filtering The waveform of signal is smoother compared with the waveform of rectified signal.Filter circuit 520 can also further include filter unit 524, be coupled to whole Between current circuit and corresponding pin, such as：First rectification circuit 510 and the first pin 501, the first rectification circuit 510 and second Pin 502, the second rectification circuit 540 and third pin 503 and the second rectification circuit 540 and the 4th pin 504, to specific Frequency is filtered, to filter out the specific frequency of external drive signal.In the present embodiment, filter unit 524 is coupled to first and connects Between foot 501 and the first rectification circuit 510.Filter circuit 520 can also further include filter unit 525, be coupled to the first pin 501 With the second pin 502 one of them between the diode of one of the first rectification circuit 510 or third pin 503 and the The diode of four pins 504 one of them and one of the second rectification circuit 540, to reduce or filter out electromagnetic interference (EMI).In the present embodiment, filter unit 525 is coupled to the first pin 501 and two with one of the first rectification circuit 510 Between pole pipe (not drawing).Since filter unit 524 and 525 visual practical situations add or omit, therefore with dotted line in figure Indicate it.

Figure 26 B are referred to, for according to the circuit diagram of the filter unit of the first preferred embodiment of the utility model.Filtering Unit 623 includes a capacitance 625.One end of capacitance 625 couples the first rectification output end 511 and the first filtering output end 521, separately One end couples the second rectification output end 512 and the second filtering output end 522, with to whole by the first rectification output end 511 and second The rectified signal of 512 output of stream output carries out low-pass filtering, and filtering is formed to filter out the radio-frequency component in rectified signal Then signal afterwards is exported by the first filtering output end 521 and the second filtering output end 522.

Figure 26 C are referred to, for according to the circuit diagram of the filter unit of the second preferred embodiment of the utility model.Filtering Unit 723 is π type filter circuits, including capacitance 725, inductance 726 and capacitance 727.One end of capacitance 725 couples the first rectification Output end 511 and simultaneously by inductance 726 couple the first filtering output end 521, the other end couple the second rectification output end 512 and Second filtering output end 522.Inductance 726 is coupled between the first rectification output end 511 and the first filtering output end 521.Capacitance 727 one end is by first rectification output end of the coupling of inductance 726 511 and couples the first filtering output end 521, other end coupling simultaneously Connect the second rectification output end 512 and the second filtering output end 522.

From the point of view of on equivalent, filter unit 723 is compared with filter unit shown in Figure 26 B more than 623 inductance 726 and capacitance 727.And And inductance 726 and capacitance 727 have low-pass filtering effect also with as capacitance 725.Therefore 723 phase of filter unit of the present embodiment Compared with filter unit 623 shown in Figure 26 B, there is more preferably high frequency to filter out ability, the waveform of the filtered signal exported is more It is smooth.

The inductance value of inductance 726 in above-described embodiment is preferably the range selected from 10nH~10mH.Capacitance 625,725, 727 capacitance is preferably the range selected from 100pF~1uF.

Figure 26 D are referred to, for according to the circuit diagram of the filter unit of the utility model third preferred embodiment.Filtering Unit 824 includes the capacitance 825 and inductance 828 of parallel connection.One end of capacitance 825 couples the first pin 501, other end coupling first Rectification output end 511, to carry out high-pass filtering to the external drive signal inputted by the first pin 501, to filter out external drive Low-frequency component in signal.One end of inductance 828 couples the first pin 501, and the other end couples the first rectification output end 511, with Low-pass filtering is carried out to the external drive signal inputted by the first pin 501, to filter out the radio-frequency component in external drive signal. Therefore, high impedance can be presented to specific frequency in external drive signal in the combination of capacitance 825 and inductance 828.It is, in parallel Capacitance and inductance are to the equiva lent impedance of external drive signal in maximum value is presented in specific frequency.

Via the capacitance of capacitance 825 and the inductance value of inductance 828 is suitably chosen, impedance can be made to correspond to the center frequency of frequency filter Rate (impedance maximum value) is located in specific frequency, and centre frequency isWherein L is the inductance value of inductance 828, and C is electricity Hold 825 capacitance.Such as：Preferable centre frequency is within the scope of 20-30kHz, more preferably 25kHz, therefore has filter unit 824 LED light may conform to the safety requirement of UL certifications.

It is worth noting that, filter unit 824 may include resistance 829.Resistance 829 is coupled to the first pin 501 and first Between rectification output end 511.Therefore, resistance 829 is connected with capacitance 825 in parallel, inductance 828.For example, 829 coupling of resistance It is connected between the first pin 501 and the capacitance 825 and inductance 828 of parallel connection or resistance 829 is coupled to the first rectification output end Between 511 and capacitance 825 in parallel and inductance 828.In the present embodiment, resistance 829 be coupled to the first pin 501 and parallel connection Between capacitance 825 and inductance 828.Resistance 829 is to adjust the Q values for the LC circuits that capacitance 825 and inductance 828 are constituted, with more It is adapted to the application environment of different Q value requirement.Since resistance 829 is inessential component, therefore it is represented by dotted lines in the present embodiment.

The capacitance of capacitance 825 is preferably in the range of 10nF~2uF.The inductance value of inductance 828 is preferably less than 2mH, more Good is that can use air core inductor or I-shaped inductance less than 1mH.Resistance 829 is preferably more than 50 ohm, is more preferably more than 500 Ohm.

Other than filter circuit shown in the above embodiments, traditional low pass or bandpass filter can be used as this reality It is used in filter circuit with novel filter unit.

Figure 26 E are referred to, for according to the circuit diagram of the filter unit of the 4th preferred embodiment of the utility model.At this In embodiment, filter unit 925 is set within rectification circuit 610 shown in Figure 25 A, with reduce rectification circuit 610 and/or Electromagnetic interference (EMI) caused by other circuits.In the present embodiment, filter unit 925 includes EMI capacitances, is coupled to first and connects It is also coupled between foot 501 and the anode of the 4th rectifier diode 614 and simultaneously in the second pin 502 and third rectifier diode Between 613 anode, when the positive half-wave to reduce the first pin 501 and 502 received alternating current drive signal of the second pin transmits Adjoint electromagnetic interference.The EMI capacitances of filter unit 925 are also coupled to negative terminal and the first pin in the second rectifier diode 612 It between 501 and is also coupled between the negative terminal of the first rectifier diode 611 and the second pin 502 simultaneously, to reduce the first pin 501 And the negative half-wave of 502 received alternating current drive signal of the second pin adjoint electromagnetic interference when transmitting.It is, rectification circuit 610 are full bridge rectifier and include the first rectifier diode 611, the second rectifier diode 612, third rectifier diode 613 And the 4th rectifier diode 614, the first rectifier diode 611, the second rectifier diode 612, third rectifier diode 613 and Two the-the first rectifier diodes of rectifier diode 611 and third rectifier diode 613, wherein third in four rectifier diodes 614 The negative terminal of the anode of rectifier diode 613 and the first rectifier diode 611 connects to form one first filtering tie point, the first rectification Another two rectification in diode 611, the second rectifier diode 612, third rectifier diode 613 and the 4th rectifier diode 614 Diode the-the second rectifier diode 612 and the 4th rectifier diode 614, wherein the anode and second of the 4th rectifier diode 614 The negative terminal of rectifier diode 612 connects to form one second filtering tie point, and the EMI capacitances of filter unit 925 are coupled to the first filter Between wave tie point and the second filtering tie point.

It is worth noting that, the EMI capacitances in Figure 26 E illustrated embodiments can be as the filter in Figure 26 D illustrated embodiments The capacitance of wave unit 824 and arrange in pairs or groups with the inductance of filter unit 824, and reach simultaneously and high impedance and reduction be presented to specific frequency The function of electromagnetic interference.It is, when rectification circuit is full bridge rectifier, the capacitance 825 of filter unit 824 is coupled to entirely Between first filtering tie point of bridge rectification circuit and the second filtering tie point, when rectification circuit is half-wave rectifying circuit, filter The capacitance 825 of wave unit 824 be coupled to half-wave rectifying circuit half-wave tie point and described two pins at least one.

Figure 27 A are referred to, for according to the circuit diagram of the LED module of the first preferred embodiment of the utility model.LED The anode of module 630 couples the first filtering output end 521, and negative terminal couples the second filtering output end 522.LED module 630 includes extremely A few LED unit 632, i.e. light source in previous embodiment.LED unit 632 is connected in parallel to each other when being more than two.Each The anode of the anode coupling LED module 630 of LED unit, to couple the first filtering output end 521；The negative terminal of each LED unit The negative terminal for coupling LED module 630, to couple the second filtering output end 522.LED unit 632 includes at least one LED component 631.When LED component 631 is plural number, LED component 631 is connected into a string, belonging to the anode coupling of first LED component 631 The negative terminal of the anode of LED unit 632, first LED component 631 couples next (second) LED component 631.And last The anode of a LED component 631 couples the negative terminal of previous LED component 631, belonging to the negative terminal coupling of the last one LED component 631 The negative terminal of LED unit 632.

It is worth noting that, LED module 630 can generate current sense signal S531, represent LED module 630 flows through electricity Size is flowed, to be used as detecting, control LED module 630.

Figure 27 B are referred to, for according to the circuit diagram of the LED module of the second preferred embodiment of the utility model.LED The anode of module 630 couples the first filtering output end 521, and negative terminal couples the second filtering output end 522.LED module 630 includes extremely Few two LED units 732, and the anode of the anode coupling LED module 630 of each LED unit 732 and negative terminal coupling The negative terminal of LED module 630.LED unit 732 includes at least two LED components 731, the LED in affiliated LED unit 732 The connection type of component 731 is as described by Figure 27 A, the positive coupling of the cathode of LED component 731 and next LED component 731 It connects, and the anode of LED unit 732 and the last one LED component 731 belonging to the anode coupling of first LED component 731 The cathode of LED unit 732 belonging to cathode coupling.Furthermore it is also connected to each other between the LED unit 732 in the present embodiment.It is each The anode of n-th of LED component 731 of a LED unit 732 is connected to each other, and cathode is also connected to each other.Therefore, the LED of the present embodiment Connection between the LED component of module 630 is netted connection.

Compared to the embodiment of Figure 28 A to Figure 28 G, the LED drive module 530 of above-described embodiment includes LED module 630 But do not include driving circuit.

Similarly, the LED module 630 of the present embodiment can generate current sense signal S531, represent the stream of LED module 630 Through size of current, to be used as detecting, control LED module 630.

In addition, in practical application, the quantity for the LED component 731 that LED unit 732 is included is preferably 15-25, more preferably It is 18-22.

Figure 27 C are referred to, for according to the cabling schematic diagram of the LED module of the first preferred embodiment of the utility model.This reality The connection relation of the LED component 831 of example is applied with shown in Figure 27 B, is illustrated by taking three LED units as an example herein.Positive wire 834 receive drive signal with cathode conductor 835, to provide electrical power to each LED component 831, for example：834 coupling of positive wire The first filtering output end 521 of aforementioned filter circuit 520 is connect, cathode conductor 835 couples the second filter of aforementioned filter circuit 520 Wave output terminal 522, with signal after accepting filter.For convenience of description, n-th in each LED unit is divided into together in figure One LED groups 833.

Positive wire 834 connects first LED component 831 in the LED unit of the leftmost side three, i.e., the leftmost side as shown in the figure (left side) anode of three LED components in LED groups 833, and cathode conductor 835 connects the last one in three LED units LED component 831, i.e., (right side) cathode of three LED components in rightmost side LED groups 833 as shown in the figure.Each LED unit First LED component 831 cathode, the anode of the anode of the last one LED component 831 and other LED components 831 and Cathode then penetrates connecting wire 839 and connects.

In other words, the anode of three LED components 831 of leftmost side LED groups 833 is connected to each other through positive wire 834, Its cathode is connected to each other through leftmost side connecting wire 839.The anode of three LED components 831 of the second from left LED groups 833 is through most Left side connecting wire 839 is connected to each other, and cathode is connected to each other through the connecting wire 839 of the second from left.Due to leftmost side LED groups The cathode of 833 three LED components 831 and the anode of three LED components 831 of the second from left LED groups 833 penetrate the leftmost side and connect Conducting wire 839 is connected to each other, thus the anode of the cathode of the first of each LED unit LED component and second LED component that This connection.The rest may be inferred to form netted connection as shown in figure 27b.

It is worth noting that, in connecting wire 839 with the width 836 of the positive coupling part of LED component 831 be less than with The width 837 of the negative polarity connecting portion of LED component 831.The area of negative polarity connecting portion is set to be more than the area of positive coupling part. In addition, width 837 is less than in connecting wire 839 connects the positive and another of one of them in neighbouring two LED components 831 simultaneously Cathode part width 838, make simultaneously with the area of positive electrode and negative electrode part be more than only with the area of negative polarity connecting portion And the area of positive coupling part.Therefore, such cabling framework contributes to the heat dissipation of LED component.

In addition, positive wire 834 also may include there is positive wire 834a, cathode conductor 835 also may include there is negative wire 835a makes the both ends of LED module all have anode and cathode tie point.Such cabling framework can make the power supply module of LED light Other circuits, such as：Filter circuit 520, the first rectification circuit 510 and the second rectification circuit 540 are two by either end or simultaneously The anode and cathode tie point at end are couple to LED module, increase the elasticity that the configuration of actual circuit arranges.

Figure 27 D are referred to, for according to the cabling schematic diagram of the LED module of the second preferred embodiment of the utility model.This reality The connection relation of the LED component 931 of example is applied with shown in Figure 27 A, includes herein 7 with three LED units and each LED unit It is illustrated for LED component.Positive wire 934 receives drive signal with cathode conductor 935, to provide electrical power to each LED groups Part 931, for example：Positive wire 934 couples the first filtering output end 521 of aforementioned filter circuit 520, cathode conductor 935 The second filtering output end 522 for coupling aforementioned filter circuit 520, with signal after accepting filter.It for convenience of description, will be each in figure Seven LED components are divided into same LED groups 932 in a LED unit.

Positive wire 934 connects (left side) anode of first (leftmost side) LED component 931 in every LED groups 932.It is negative Polar conductor 935 connects (right side) cathode of the last one (rightmost side) LED component 931 in every LED groups 932.In every LED In group 932, the cathode of the LED component 931 of left connects right LED through connecting wire 939 in neighbouring two LED components 931 The anode of component 931.Thereby, the LED component of LED groups 932 is connected into a string.

It is worth noting that, connecting wire 939 to connect one of two adjacent LEDs component 931 cathode and Another anode.Cathode conductor 935 is connecting the cathode of the LED component 931 of the last one (rightmost side) of each LED groups.Just Polar conductor 934 is connecting the anode of the LED component 931 of first (leftmost side) of each LED groups.Therefore, width and for LED The heat dissipation area of component according to said sequence from large to small.That is, the width 938 of connecting wire 939 is maximum, cathode conductor The width 937 of 935 connection 931 cathode of LED component takes second place, and positive wire 934 connects the width 936 of 931 anode of LED component most It is small.Therefore, such cabling framework contributes to the heat dissipation of LED component.

In addition, positive wire 934 also may include there is positive wire 934a, cathode conductor 935 also may include there is negative wire 935a makes the both ends of LED module all have anode and cathode tie point.Such cabling framework can make the power supply module of LED light Other circuits, such as：Filter circuit 520, the first rectification circuit 510 and the second rectification circuit 540 are two by either end or simultaneously The anode and cathode tie point at end are couple to LED module, increase the elasticity that the configuration of actual circuit arranges.

Furthermore cabling shown in Figure 27 C and 28D can be realized with flexible circuit board.For example, bendable circuit Plate has single layer line layer, formed with etching mode positive wire 834 in Figure 27 C, positive wire 834a, cathode conductor 835, Negative wire 835a and connecting wire 839 and positive wire 934 in Figure 27 D, positive wire 934a, cathode conductor 935, Negative wire 935a and connecting wire 939.

Figure 27 E are referred to, for according to the cabling schematic diagram of the LED module of the utility model third preferred embodiment.This reality It applies example system and the cabling of the LED module of Figure 27 C is changed to the double-deck line layer by single layer line layer, mainly by positive wire 834a And negative wire 835a is changed to second layer line layer.It is described as follows.

Flexible circuit board has the double-deck line layer, including first line a layer 2a, dielectric layer 2b and the second line layer 2c.It is electrically isolated with dielectric layer 2b between first line layer 2a and the second line layer 2c.The first line of flexible circuit board Layer 2a forms positive wire 834, cathode conductor 835 and connecting wire 839 in Figure 27 E with etching mode, described in electrical connection Multiple LED components 831, such as：Be electrically connected the multiple LED component and reticulate connection, the second line layer 2c with etching mode just Pole lead 834a, negative wire 835a, to be electrically connected the filter circuit (filtering output end).And in flexible circuit board The positive wire 834 of first line layer 2a, cathode conductor 835 there is layer tie point 834b and 835b.Second line layer 2 is just Pole lead 834a, negative wire 835a have layer tie point 834c and 835c.Layer tie point 834b and 835b and layer tie point The positions 834c and 835c are opposite, are for electrically connecting to positive wire 834 and positive wire 834a and cathode conductor 835 and bear Pole lead 835a.Preferably do the genealogy of law by the position of layer the tie point 834b and 835b of first layer line layer with lower section by electric layer shape At opening to layer tie point a 834c and 835c is exposed, is then welded with scolding tin, makes positive wire 834 and positive wire 834a, And cathode conductor 835 and negative wire 835a are electrically connected to each other.

Similarly, the cabling of LED module shown in Figure 27 D can also change positive wire 934a and negative wire 935a To second layer line layer, and form the Wiring structure of the double-deck line layer.

It is worth noting that, the thickness of the second conductive layer of the flexible circuit board with bilayer conductive layer or line layer compared with It is good thick for the thickness compared to the first conductive layer, it can thereby reduce the line loss (pressure drop) on positive wire and negative wire. Furthermore the flexible circuit board with bilayer conductive layer is compared to the flexible circuit board of single conductive layer, due to by both ends Positive wire, negative wire move to the second layer, can reduce the width of flexible circuit board.It is relatively narrow on identical jig The discharge quantity of substrate is more than wider substrate, therefore can improve the production efficiency of LED module.And there is bilayer conductive layer Flexible circuit board relatively on be relatively easy to maintain shape, with increase production reliability, such as：When the welding of LED component The accuracy of welding position.

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 building brick of group is arranged on lamp plate：Utilize PEC (printed electronic circuit, PEC：Printed Electronic Circuits), technology at least partly electronic building brick will be printed or be embedded on lamp plate.

In one embodiment of the utility model, the electronic building brick of power supply module is provided entirely on lamp plate.It makes Process is as follows：Substrate preparation (flexible printed circuit preparation) → spray printing metal nano ink → spray printing passive block/active Device (power supply module) → drying/sintering → spray printing interlayer connection convex block → spray insulation ink → spray printing metal nano ink → Spray printing passive block and active device (and so on form included multi-layer board) → sprayed surface welded disc → spraying welding resistance LED component is welded in agent.

It, only need to be in lamp plate if the electronic building brick of power supply module is provided entirely on lamp plate in above-mentioned the present embodiment Both ends pass through welding lead connect LED straight lamps pin, realize pin and lamp plate electrical connection.Thus without being again Substrate is arranged in power supply module, and then can further optimize the design of lamp cap.Preferably, power supply module is arranged the two of lamp plate End reduces influence of the heat of its work generation to LED component to the greatest extent in this way.The present embodiment is welded because reducing, and improves power supply module Whole reliability.

If part electronic building brick is printed on lamp plate (such as resistance, capacitance), and such as by big device：Inductance, electrolysis The electronic building bricks such as capacitance are arranged in lamp cap.The manufacturing process of lamp plate is same as above.In this way by part electronic building brick being arranged in lamp It is rational to be laid out power supply module on plate, to optimize the design of lamp cap.

It is deformed as above-mentioned scheme, also can realize that the electronic building brick setting by power supply module exists by embedded mode On lamp plate.I.e.：Electronic building brick is embedded on flexible lamp plate in a manner of embedded.Preferably, can be used containing resistor-type/capacitive Copper coated foil plate (CCL) or the methods of the relevant ink of silk-screen printing realize；Or realize that insertion is passive using inkjet printing technology The method of component, i.e., using ink-jet printer directly as passive block electrically conductive ink and correlation function ink jet-printing to lamp plate On the position of interior setting.As the deformation of said program, passive block can also ink-jet printer directly using as passive block Electrically conductive ink and correlation function ink jet-printing to lamp plate on).Then, it is buried by UV light processings or drying/sintering processes, formation The lamp plate of embedding passive block.It includes resistance, capacitance and inductance to be embedded in electronic building brick on lamp plate；In other embodiments, have Source component is also suitable.Design in this way carrys out the rational design for being laid out power supply module and then reaching optimization lamp cap (due to portion Divide and use embedded resistance and capacitance, the present embodiment has saved valuable printed circuit board surface space, reduced printed circuit The size of plate simultaneously reduces its weight and thickness.Simultaneously because eliminating the pad of these resistance and capacitance, (pad is print It is easiest to introduce the part of failure on printed circuit board), the reliability of power supply module is also improved.Printing electricity will be shortened simultaneously The length of conducting wire and allow greater compactness of device layout on the plate of road, thus improve electric property).

Illustrate the manufacturing method of embedded capacitance, resistance below.

Usually using the method for embedded capacitance, using a kind of concept being called distributed electrical perhaps plane capacitance.In copper Insulating layer very thin in pressure on the basis of layer.Generally occur in pairs in the form of bus plane/stratum.Very thin insulating layer makes The distance between bus plane and stratum are very small.Such capacitance can also be realized by traditional plated through-hole.Substantially For, such method establishes a big parallel plate capacitance on circuit boards.

The product of some high-capacitances, some are distributed capacitor types, and other is discrete Embedded.By Barium titanate (a kind of material with high-k) is filled in insulating layer to obtain higher capacitance.

The method for usually manufacturing embedded resistance is to use resistance stick.It is the tree doped with conductibility carbon or graphite Fat is screen printed onto specified place, is then laminated into inside circuit board after treatment as filler.Resistance is by metallizing Hole or micro- via are connected to other electronic building bricks on circuit board.Another method is Ohmega-Ply methods：It is double-metal layer Structure --- layers of copper constitutes resistor element with a thin nickel alloy layer, they form the resistance relative to bottom of stratiform Device.Then by the etching to layers of copper and nickel alloy layer, the various nickel resistance with copper tip are formed.These resistors are laminated Into the internal layer of circuit board.

In one embodiment of the utility model, conducting wire is directly printed on to the inner wall (being arranged to threadiness) of glass tube, LED component directly pastes the inner wall, to be electrically connected to each other by these conducting wires.Preferably, the chip form using LED component is straight It connects on the conducting wire for being attached to the inner wall and (tie point is set at the both ends of conducting wire, connect with power supply module by tie point LED component), After attaching, drop fluorescent powder on the chip (generating white light when LED straight lamps being made to work, can also be the light of other colors).

The luminous efficiency of the LED component of the utility model be 80lm/W or more, preferably 120lm/W or more, more preferably 160lm/W or more.LED component can be that the light of monochromatic LED chip blendes together white light through fluorescent powder, the main wavelength of spectrum For 430-460nm and 550-560nm or 430-460nm, 540-560nm and 620-640nm.

Figure 28 A are referred to, for according to the circuit box schematic diagram of the LED light of the second preferred embodiment of the utility model.Phase Shown in Figure 24 B, the power supply module of the LED light of the present embodiment include the first rectification circuit 510 and the second rectification circuit 540, Filter circuit 520, LED drive module 530, and LED drive module 530 further includes driving circuit 1530 and LED module 630.It drives Dynamic circuit 1530 is DC-to-DC switching circuit, the first filtering output end 521 and the second filtering output end 522 is coupled, to connect Filtered signal is received, and carries out electrical power conversion filtered signal is converted into drive signal and in the first drive output 1521 And second drive output 1522 export.LED module 630 couples the first drive output 1521 and the second drive output 1522, it is shone with receiving drive signal, the electric current of preferably LED module 630 is stable at a setting electric current value.LED module 630 It can be found in the explanation of Figure 27 A to Figure 27 D.

Figure 28 B are referred to, for according to the circuit box schematic diagram of the driving circuit of the first preferred embodiment of the utility model. Driving circuit includes controller 1531 and conversion circuit 1532, electrical power conversion is carried out with the pattern of current source, to drive LED module It shines.Conversion circuit 1532 includes switching circuit 1535 and accumulator 1538.First filtering of the coupling of conversion circuit 1532 is defeated Outlet 521 and the second filtering output end 522, signal after accepting filter, and according to the control of controller 1531, it is converted into driving letter Number and exported by the first drive output 1521 and the second drive output 1522, to drive LED module.In controller 1531 Under control, the drive signal that conversion circuit 1532 is exported is stabling current, and makes LED module stabilized illumination.

Figure 28 C are referred to, for according to the circuit diagram of the driving circuit of the first preferred embodiment of the utility model.At this Embodiment, driving circuit 1630 is decompression DC to-DC switching circuit, including controller 1631 and conversion circuit, and convert electricity Road includes inductance 1632, fly-wheel diode 1633, capacitance 1634 and switching switch 1635.First filter of the coupling of driving circuit 1630 Wave output terminal 521 and the second filtering output end 522, drive signal is converted by the filtered signal of reception, to drive coupling LED module between the first drive output 1521 and the second drive output 1522.

In the present embodiment, switching switch 1635 is metal-oxide half field effect transistor, has control terminal, first end and second End.Switching the anode of the first end coupling fly-wheel diode 1633 of switch 1635, second end couples the second filtering output end 522, Control terminal coupling controller 1631 is made between first end and second end with receiving the control of controller 1631 on or off.The One drive output 1521 couples the first filtering output end 521, and the second drive output 1522 couples one end of inductance 1632, and The first end of the other end coupling switching switch 1635 of inductance 1632.Capacitance 1634 is coupled to the first drive output 1521 And second between drive output 1522, to stablize the electricity between the first drive output 1521 and the second drive output 1522 Pressure difference.The negative terminal of fly-wheel diode 1633 couples the first drive output 1521.

The running of driving circuit 1630 will be illustrated next.

When controller 1631 determines the conducting and cut-off of switching switch 1635 according to current sense signal S535 and/or S531 Between, that is, the duty ratio (Duty Cycle) of switching switch 1635 is controlled to adjust the size of drive signal.Current sense is believed Number S535 systems represent the size of current for flowing through switching switch 1635.Current sense signal S535 systems, which represent to flow through, is coupled to the first drive The size of current of LED module between 1521 and second drive output 1522 of dynamic output end.According to current sense signal S531 And any of S535, controller 1631 can obtain the information for the electric power size that conversion circuit is converted.When switching switch 1635 When conducting, the electric current of filtered signal is flowed by the first filtering output end 521, and passes through capacitance 1634 and the first drive output 1521 to being flowed out by the second filtering output end 522 after LED module, inductance 1632, switching switch 1635.At this point, capacitance 1634 and Inductance 1632 carries out energy storage.When switching the cut-off of switch 1635, inductance 1632 and capacitance 1634 discharge stored energy, electric current Make LED module still continuous illumination to the first drive output 1521 through 1633 afterflow of fly-wheel diode.

It is worth noting that, 1634 inessential component of capacitance and can be omitted, therefore be represented by dotted lines in figure.It answers at some With environment, electricity can be omitted to achieve the effect that stable LED module electric current by the characteristic of the change of inductance meeting resistive Hold 1634.

Figure 28 D are referred to, for according to the circuit diagram of the driving circuit of the second preferred embodiment of the utility model.At this Embodiment, driving circuit 1730 is voltage boosting dc to-DC switching circuit, including controller 1731 and conversion circuit, and convert electricity Road includes inductance 1732, fly-wheel diode 1733, capacitance 1734 and switching switch 1735.Driving circuit 1730 will be by the first filter The filtered signal that wave output terminal 521 and the second filtering output end 522 are received is converted into drive signal, and the is coupled in driving LED module between one drive output 1521 and the second drive output 1522.

One end of inductance 1732 couples the first filtering output end 521, the anode of other end coupling filter stream diode 1733 and Switch the first end of switch 1735.The second end for switching switch 1735 couples the driving output of the second filtering output end 522 and second End 1522.The cathode of fly-wheel diode 1733 couples the first drive output 1521.Capacitance 1734 is coupled to the first driving output Between end 1521 and the second drive output 1522.

The control terminal of the coupling switching switch 1735 of controller 1731, according to current sense signal S531 and/or current sense Signal S535 switches the conducting and cut-off of switch 1735 to control.When switching the conducting of switch 1735, electric current is defeated by the first filtering Outlet 521 flows into, and is flowed out by the second filtering output end 522 after flowing through inductance 1732, switching switch 1735.At this point, flowing through electricity Increase with time, inductance 1732 is in energy storage state to the electric current of sense 1732.Meanwhile capacitance 1734 is in de-energized state, to continue LED module is driven to shine.When switching the cut-off of switch 1735, inductance 1732 is in de-energized state, and the electric current of inductance 1732 is at any time Between reduce.The electric current of inductance 1732 flows to capacitance 1734 and LED module through 1733 afterflow of fly-wheel diode.At this point, capacitance 1734 are in energy storage state.

It is worth noting that, capacitance 1734 is omissible component, it is represented by dotted lines.The case where capacitance 1734 omits, When switching the conducting of switch 1735, the electric current of inductance 1732 is not passed through LED module and LED module is made not shine；Switch switch 1735 When cut-off, the electric current of inductance 1732 flows through LED module through fly-wheel diode 1733 and LED module is made to shine.By control LED moulds The fluorescent lifetime of block and the size of current flowed through, the average brightness that can reach LED module is stable in setting value, and reaches phase The effect of same stabilized illumination.

Figure 28 E are referred to, for according to the circuit diagram of the driving circuit of the utility model third preferred embodiment.At this Embodiment, driving circuit 1830 is decompression DC to-DC switching circuit, including controller 1831 and conversion circuit, and convert electricity Road includes inductance 1832, fly-wheel diode 1833, capacitance 1834 and switching switch 1835.First filter of the coupling of driving circuit 1830 Wave output terminal 521 and the second filtering output end 522, drive signal is converted by the filtered signal of reception, to drive coupling LED module between the first drive output 1521 and the second drive output 1522.

The first end for switching switch 1835 couples the first filtering output end 521, and second end couples fly-wheel diode 1833 Cathode, and control terminal coupling controller 1831 is made with receiving the control signal of controller 1831 between first end and second end State is on or off.Anode the second filtering output end 522 of coupling of fly-wheel diode 1833.One end of inductance 1832 with cut The second end coupling of switch 1835 is changed, the other end couples the first drive output 1521.The coupling of second drive output 1522 is continuous Flow the anode of diode 1833.Capacitance 1834 is coupled between the first drive output 1521 and the second drive output 1522, To stablize the voltage between the first drive output 1521 and the second drive output 1522.

Controller 1831 controls switching switch according to current sense signal S531 and/or current sense signal S535 1835 conducting and cut-off.When switching the conducting of switch 1835, electric current is flowed by the first filtering output end 521, and flows through switching By the second filtering output end after switch 1835, inductance 1832, the first drive output 1521 and the second drive output 1522 522 outflows.At this point, flow through inductance 1832 electric current and capacitance 1834 voltage increase with time, inductance 1832 and capacitance 1834 are in energy storage state.When switching the cut-off of switch 1835, inductance 1832 is in de-energized state, and the electric current of inductance 1832 is at any time Between reduce.At this point, the electric current of inductance 1832 is through the first drive output 1521 and the second drive output 1522, fly-wheel diode 1833 return inductance 1832 and form afterflow.

It is worth noting that, capacitance 1834 is that can omit component, it is represented by dotted lines in schema.When capacitance 1834 omits, No matter switching switch 1835 is on or off, the electric current of inductance 1832 can flow through the first drive output 1521 and second Drive output 1522 is to drive LED module continuous illumination.

Figure 28 F are referred to, for according to the circuit diagram of the driving circuit of the 4th preferred embodiment of the utility model.At this Embodiment, driving circuit 1930 is decompression DC to-DC switching circuit, including controller 1931 and conversion circuit, and convert electricity Road includes inductance 1932, fly-wheel diode 1933, capacitance 1934 and switching switch 1935.First filter of the coupling of driving circuit 1930 Wave output terminal 521 and the second filtering output end 522, drive signal is converted by the filtered signal of reception, to drive coupling LED module between the first drive output 1521 and the second drive output 1522.

One end of inductance 1932 couples the first filtering output end 521 and the second drive output 1522, and other end coupling is cut Change the first end of switch 1935.The second end for switching switch 1935 couples the second filtering output end 522, and control terminal coupling controls Device 1931 is on or off with the control signal according to controller 1931.The anode coupling inductance of fly-wheel diode 1933 1932 with switching switch 1935 tie point, cathode coupling the first drive output 1521.First driving of the coupling of capacitance 1934 is defeated Outlet 1521 and the second drive output 1522 are coupled to the first drive output 1521 and the second drive output with stabilization The driving of LED module between 1522.

Controller 1931 controls switching switch according to current sense signal S531 and/or current sense signal S535 1935 conducting and cut-off.When switching the conducting of switch 1935, electric current is flowed by the first filtering output end 521, and flows through inductance 1932, it is flowed out by the second filtering output end 522 after switching switch 1935.At this point, flow through the electric current of inductance 1932 increase with time, Inductance 1932 is in energy storage state；The voltage of capacitance 1934 is reduced at any time, and capacitance 1934 is in de-energized state, to maintain LED Module shines.When switching the cut-off of switch 1935, inductance 1932 is in de-energized state, and the electric current of inductance 1932 is reduced at any time. At this point, the electric current of inductance 1932 through fly-wheel diode 1933, the first drive output 1521 and the second drive output 1522 again It returns to inductance 1932 and forms afterflow.At this point, capacitance 1934 is in energy storage state, the voltage of capacitance 1934 is increase with time.

It is worth noting that, capacitance 1934 is that can omit component, it is represented by dotted lines in schema.When capacitance 1934 omits, When switching the conducting of switch 1935, the electric current of inductance 1932 is not flow through the first drive output 1521 and the second drive output 1522 and so that LED module is not shone.When switching the cut-off of switch 1935, the electric current of inductance 1932 is flowed through fly-wheel diode 1933 LED module is set to shine through LED module.By the size of current for controlling the fluorescent lifetime of LED module and flowing through, can reach The average brightness of LED module is stable in setting value, and has the function that identical stabilized illumination.

Figure 28 G are referred to, for according to the circuit box schematic diagram of the driving circuit of the second preferred embodiment of the utility model. Driving circuit includes controller 2631 and conversion circuit 2632, electrical power conversion is carried out with the pattern of adjustable current source, to drive LED Module shines.Conversion circuit 2632 includes switching circuit 2635 and accumulator 2638.First filter of the coupling of conversion circuit 2632 Wave output terminal 521 and the second filtering output end 522, signal after accepting filter, and according to the control of controller 2631, be converted into driving It moves signal and is exported by the first drive output 1521 and the second drive output 1522, to drive LED module.Controller 2631 Current sense signal S535 and/or S539 are received, the drive signal that control conversion circuit 2632 exports is stable at setting electric current value On.Wherein, the size of current of current sense signal S535 representation switch circuit 2635；Current sense signal S539 represents energy storage electricity The size of current on road 2638, such as：Inductive current in accumulator 2638, the electric current that the first drive output 1521 is exported Deng.Any driving circuit that can represent of current sense signal S535 and S539 are by the first drive output 1521 and second Drive output 1522 is supplied to the size of the electric current Iout of LED module.Controller 2631 more couples the first filtering output end 521, to determine the size of setting electric current value according to the voltage Vin of the first filtering output end 521.Therefore, the electric current of driving circuit Iout, i.e. setting electric current value can be adjusted according to the size of the voltage Vin for the filtered signal that filter circuit is exported.

It is worth noting that, the generation of above-mentioned current sense signal S535 and S539 can be the sides using resistance or inductance Formula weight is surveyed.For example, resistance is flowed through in the pressure difference that resistance both ends generate according to electric current, or utilizes mutual inductance inductance and energy storage Inductance mutual inductance in circuit 2638 etc. can be to detecting current.

Above-mentioned circuit framework is particularly suitable for the application environment that lamp tube drive circuit is electric ballast.Electronic ballast Equivalent device is above current source, and output power is not definite value.And the driving circuit as shown in Figure 28 C to Figure 28 F, consumption Power is related with the LED component quantity of LED module, can be considered definite value.When the output power of electric ballast is higher than driving circuit When the consumption power of the LED module driven, the output voltage of electric ballast can be continuously improved, that is, LED light power supply The level for the alternating current drive signal that module is received can constantly rise and cause to have more than electric ballast and/or the electricity of LED light The risk that the component of source module is pressure-resistant and damages.When the output power of electric ballast is less than the LED moulds that driving circuit is driven When the consumption power of block, the output voltage of electric ballast can be reduced constantly, that is, the level of alternating current drive signal can be continuous Decline and causes circuit can not normal operating.

It is worth noting that, the power needed for LED light illumination is already less than the power needed for the fluorescent lightings such as fluorescent lamp. If controlling the controlling mechanism of LED luminance using previous backlight module etc., it is applied to traditional drive systems such as electric ballast, it must Incompatibility problem caused by the power of drive system and the required power difference of LED light can so be suffered from.Even result in driving system The problem of system and/or LED light are damaged.The above-mentioned power adjustment of example so that LED light is more compatible with traditional fluorescent lighting System.

Figure 28 H are referred to, for according to area's line relationship of the voltage Vin and electric current Iout of one preferred embodiment of the utility model Schematic diagram.Wherein, horizontal axis is voltage Vin, and the longitudinal axis is electric current Iout.In one embodiment, as the voltage Vin of filtered signal When (i.e. level) is between upper voltage limit value VH and voltage lower limit value VL, electric current Iout maintains initial setting electric current value.When The voltage Vin of filtered signal be higher than upper voltage limit value VH when, electric current Iout (i.e. setting electric current value) with the increase of voltage Vin and It improves.Upper voltage limit value VH is higher than voltage lower limit value VL.Preferably slope of a curve rises with voltage Vin and is become larger.Work as filtering When the voltage Vin of signal is less than voltage lower limit value VL afterwards, setting electric current value is reduced with the reduction of voltage Vin.Preferably curve Slope reduce and become smaller with voltage Vin.It is, when voltage Vin higher than upper voltage limit value VH or is less than voltage lower limit value VL When, electric setting electric current value is preferably the functional relation of quadratic power of voltage Vin or more, and makes the increment rate of consumption power (slip) is higher than the increment rate (slip) of output power.That is, the Tuning function system of the setting electric current value is comprising described The function of the quadratic power of level of filtered signal or more.

In another embodiment, when the voltage Vin of filtered signal is between upper voltage limit value VH and voltage lower limit value VL When, the electric current Iout of LED light can be increased or decreased and linearly increasing or reduction with voltage Vin.When voltage Vin is in upper voltage limit value When VH, electric current Iout is in upper current value IH；As voltage Vin limit value VL under voltage, electric current Iout is in lower current value IL.Its In, upper current value IH is higher than lower current value IL.It is, when voltage Vin is between upper voltage limit value VH and voltage lower limit value VL, Electric current Iout is the functional relation of the first power of voltage Vin.

By above-mentioned design, when output power the disappearing higher than the LED module that driving circuit is driven of electric ballast When wasted work rate, voltage Vin can be improved and is more than upper voltage limit value VH at any time.When voltage Vin is higher than upper voltage limit value VH, The increment rate of the consumption power of LED module is higher than the increment rate of the output power of electric ballast, and is that height balances in voltage Vin When voltage VH+ and electric current Iout is high balanced balanced current IH+, output power is equal to consumption power and balances.At this point, high balance electricity VH+ is pressed to be higher than upper voltage limit value VH, and high balanced balanced current IH+ is higher than upper current value.Conversely, when voltage Vin is less than lower voltage limit When value VL, the slip of the consumption power of LED module is higher than the slip of the output power of electric ballast, and in voltage Vin When for low balanced voltage VL- and electric current Iout being low balanced balanced current IL-, output power is equal to consumption power and balances.At this point, Low balanced voltage VL- is less than voltage lower limit value VL, and low balanced balanced current IL- is less than lower current value IL.

In a preferred embodiment, voltage lower limit value VL is defined as the 90% of the minimum output voltage of electric ballast, electricity Pressure upper limit value VH is defined as the 110% of maximum output voltage.By taking full voltage 100-277V AC/60HZ as an example, voltage lower limit value VL It is set as 90V (100V*90%), upper voltage limit value VH is set as 305V (277V*110%).

Figure 19 and Figure 20, short circuit board 253 is coordinated to be distinguished into the first short circuit board being connect with 251 both ends of long circuit board And the second short circuit board, and the first short circuit of short circuit board 253 that the electronic building brick in power supply module is respectively set at On plate and the second short circuit board.The length dimension of first short circuit board and the second short circuit board can be with rough consistent, can not also Unanimously.Generally, the first short circuit board (left side of the right-hand circuit board of the short circuit boards of Figure 35 E 253 and the short circuit board 253 of Figure 35 E Circuit board) length dimension be the second short circuit board length dimension 30%~80%.The length of more preferably first short circuit board Spend the 1/3~2/3 of the length dimension that size is the second short circuit board.In this embodiment, the length dimension of the first short circuit board is big Cause the half of the size for the second short circuit board.The size of second short circuit board (specifically regards application scenario between 15mm~65mm Depending on).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 LED In the lamp cap of the opposite other end of straight lamp.

For example, the capacitance of driving circuit is for example：Capacitance 1634 in Figure 28 C to Figure 28 F, 1734,1834,1934) Can be that two or more capacitances is formed in parallel in practical application.The capacitance of driving circuit is at least partly or entirely in power supply module Portion is set on the first short circuit board of short circuit board 253.That is, the inductance of rectification circuit, filter circuit, driving circuit, control Device, switching switch, diode etc. may be contained on the second short circuit board of short circuit board 253.And inductance, controller, switching are opened Pass etc. is the higher component of temperature in electronic building brick, is set to from part or all of capacitance on different circuit boards, can make capacitance (especially electrolytic capacitor) avoids impacting the service life of capacitance because of the higher component of temperature, improves capacitance reliability.Into one Step, can also be spatially separated because of capacitance and rectification circuit and filter circuit, solve the problems, such as EMI.

The transfer efficiency of the driving circuit of the utility model be 80% or more, preferably 90% or more, more preferably 92% with On.Therefore, when not including driving circuit, the luminous efficiency of the LED light of the utility model is preferably 120lm/W or more, more preferably For 160lm/W or more；And the luminous efficiency after being combined with LED component comprising driving circuit is preferably 120lm/W*90%= 108 lm/W or more, more preferably 160lm/W*92%=147.2lm/W or more.

Additionally, it is contemplated that the light transmittance of the diffusion layer of LED straight lamps is 85% or more, therefore, the LED of the utility model is straight The luminous efficiency of spot is preferably 108lm/W*85%=91.8lm/W or more, more preferably 147.2lm/W*85%=125.12 lm/W。

Figure 29 A are referred to, for according to the application circuit of the power supply module of the LED light of the utility model third preferred embodiment Block schematic diagram.Compared to Figure 24 B illustrated embodiments, the present embodiment includes the first rectification circuit 510 and the second rectification circuit 540, filter circuit 520, LED drive module 530, and more increase anti-flicker circuit 550.Anti-flicker circuit 550 is coupled to filtering Between circuit 520 and LED drive module 530.

Anti-flicker circuit 550 couples the first filtering output end 521 and the second filtering output end 522, to believe after accepting filter Number, and when to specific condition is less than, the portion of energy of filtered signal is consumed, to inhibit the ripple of filtered signal to cause Intermittent happen that shine of LED drive module 530.In general, filter circuit 520, which has, inductively or capacitively waits filtering group Parasitic capacitance and inductance are had on part or circuit, and form resonance circuit.Resonance circuit is carried in ac supply signal stopping For when, example：User closes after the power supply of LED light, and the amplitude of resonance signal can successively decrease at any time.However, LED lamps LED module is one-way conduction component and has minimum conducting voltage.When the valley value of resonance signal is less than the minimum conducting of LED module Voltage, and when crest value remains above LED module minimum conducting voltage, the luminous of LED module will appear scintillation.Anti- flicker electricity Road can flow through the electric current more than the anti-flicker electric current of a setting at this moment, consume the portion of energy of filtered signal, this portion of energy Higher than energy difference of the resonance signal between crest value and valley value, and inhibit the luminous scintillation of LED module.Preferably After the filtering signal close to LED module minimum conducting voltage when, the portion of energy of the consumed filtered signal of anti-flicker circuit Higher than energy difference of the resonance signal between crest value and valley value.

It is worth noting that, it does not include driving circuit 1530 that anti-flicker circuit 550, which is more suitable for LED drive module 530, Performance.That is, when LED drive module 530 includes LED module 630, and LED module 630 is by the filtering of filter circuit Applicable cases when signal directly drives luminous afterwards.LED module 630 shines the ripple of direct reflection filtered signal and becomes Change.The setting of anti-flicker circuit 550 will inhibit the scintillation that LED light occurs after the power supply for closing LED light.

Figure 29 B are referred to, for according to the circuit diagram of the anti-flicker circuit of one preferred embodiment of the utility model.Anti- sudden strain of a muscle Bright circuit 650 includes an at least resistance, such as：Concatenated two resistance is series at the filtering of the first filtering output end 521 and second Between output end 522.In the present embodiment, anti-flicker circuit 650 persistently consumes the portion of energy of filtered signal.Normally grasping When making, this portion of energy is much smaller than the energy that LED drive module 530 is consumed.So, after power supply is closed, filtered signal When level is dropped near the minimum conducting voltage of LED module 630, anti-flicker circuit 650 still consumes the part of filtered signal Energy and so that LED module 630 is reduced the luminous situation of interruption.In a preferred embodiment, anti-flicker circuit 650 may be set to It in the minimum conducting voltage of LED module 630, flows through more than or equal to an anti-flicker electric current, and can determine anti-flicker electricity accordingly The equivalent anti-flicker resistance value on road 650.

Referring to Figure 30 A, for according to the application circuit side of the power supply module of the LED light of the 4th preferred embodiment of the utility model Block schematic diagram.Compared to Figure 29 A illustrated embodiments, the present embodiment include the first rectification circuit 510 and the second rectification circuit 540, Filter circuit 520, LED drive module 530 and anti-flicker circuit 550, and more increase protection circuit 560.Protect 560 coupling of circuit The first filtering output end 521 and the second filtering output end 522 are connect, detecting filtered signal is to decide whether to enter guard mode. When determining to enter guard mode, the level of 560 strangulation filtered signal of circuit is protected, to avoid LED drive module 530 In component be damaged.Wherein, anti-flicker circuit 550 is omissible circuit, is represented by dotted lines in the drawings.

Referring to Figure 30 B, for according to the circuit diagram of the protection circuit of one preferred embodiment of the utility model.Protect circuit 660 include capacitance 663 and 670, resistance 669, diode 672, voltage clamping circuit and bleeder circuit, and wherein voltage clamping circuit includes double To silicon-controlled (bidirectional triode thyristor, TRIAC) 661 and bidirectional trigger diode (symmetrical trigger diode, DIAC) 662, bleeder circuit include the first bipolar junction transistors (bipolar Junction transistor, BJT) 667 and second bipolar junction transistors 668, first resistor 665, second resistance 666, 3rd resistor 664 and the 4th resistance 671.Protection circuit 660 enters protection shape when the electric current and/or overtension of LED module State, and avoid the damage of LED module.

The first end of bidirectional triode thyristor 661 couples the first filtering output end 521, and second end couples the second filtering output end 522, and the first end of control terminal coupling bidirectional trigger diode 662.The second end coupling capacitance of bidirectional trigger diode 662 The other end of 663 one end, capacitance 663 couples the second filtering output end 522.One end of resistance 664 couples two-way two pole of triggering The second end of pipe 662, the other end couple the second filtering output end 522, and in parallel with capacitance 663.One end coupling of first resistor 665 The second end of bidirectional trigger diode 662 is connect, the other end couples the collector of the first bipolar junction transistors 667.First pair of load The emitter-base bandgap grading of sub- junction transistor 667 couples the second filtering output end 522.One end of second resistance 666 couples two-way two pole of triggering The second end of pipe 662, the other end couple the collector and the first bipolar junction transistors of the second bipolar junction transistors 668 667 base stage.The emitter-base bandgap grading of second bipolar junction transistors 668 couples the second filtering output end 522.One end coupling of resistance 669 Connect the base stage of the second bipolar junction transistors 668, one end of other end coupling capacitance 670.The other end coupling the of capacitance 670 Two filtering output ends 522.The second end of one end coupling bidirectional trigger diode 662 of 4th resistance 671, the other end couple two poles The cathode of pipe 672.Anode the first filtering output end 521 of coupling of diode 672.

It is worth noting that, the resistance value of first resistor 665 is less than the resistance value of second resistance 666.

First illustrate the operation for protecting the overcurrent protection of circuit 660 below.

The tie point of resistance 669 and capacitance 670 receives current sense signal S531, wherein current sense signal S531 generations The size of current that table LED module flows through.The other end of 4th resistance 671 couples voltage end 521 '.In this embodiment, voltage end 521 ' can couple a bias generator or such as schema, the first filtering output end 521 is couple to filter through diode 672 Signal is as bias generator afterwards.When voltage end 521 ' couples additional bias generator, diode 672 can save filter, in the drawings, two Pole pipe 672 is represented by dotted lines.The combination of resistance 669 and capacitance 670 can filter out the radio-frequency component of current sense signal S531, and Rear current sense signal S531 will be filtered out and input the base stage of the second bipolar junction transistors 668 to control the second bipolar junction The conducting and cut-off of transistor 668.It, can be to avoid caused by noise by the filter action of resistance 669 and capacitance 670 The malfunction of two bipolar junction transistors 668.In practical application, resistance 669 and capacitance 670 can be omitted (event resistance 669 It is represented by dotted lines in figure with capacitance 670), and current sense signal S531 is directly inputted into the second bipolar junction transistors 668 base stage.

When LED light normal operating and the electric current of LED module are in normal range (NR), the second bipolar junction transistors 668 For cut-off.At this point, the base voltage of the first bipolar junction transistors 667 is drawn high and makes first pair of load by second resistance 666 Sub- junction transistor 667 is connected.At this point, bias of the current potential of the second end of bidirectional trigger diode 662 according to power end 521 ' The voltage in source and the 4th resistance 671 and the dividing ratios of 3rd resistor 664 and the first resistor 665 of parallel connection and determine.Due to The resistance value of first resistor 665 is smaller, and dividing ratios are relatively low thus the current potential of the second end of bidirectional trigger diode 662 is relatively low.This When, the control terminal potential of bidirectional triode thyristor 661 is also dragged down by bidirectional trigger diode 662, and bidirectional triode thyristor 661 makes for cut-off Protection circuit 660 is in unprotected state.

When the electric current of LED module is more than an overcurrent value, at this time the level of current sense signal S531 can be excessively high and make the Two bipolar junction transistors 668 are connected.Second bipolar junction transistors 668 can drag down the first bipolar junction transistors 667 base stage and make the first bipolar junction transistors 667 be cut-off.At this point, the second end of bidirectional trigger diode 662 Current potential is according to the voltage of the bias generator of power end 521 ' and the 4th resistance 671 and the 3rd resistor 664 and second resistance of parallel connection 666 dividing ratios and determine.Since the resistance value of second resistance 666 is larger, dividing ratios are higher thus bidirectional trigger diode The current potential of 662 second end is higher.At this point, the control terminal potential of bidirectional triode thyristor 661 is also drawn by bidirectional trigger diode 662 Height, bidirectional triode thyristor 661 are conducting with the voltage difference between strangulation the first filtering output end 521 and the second filtering output end 522 And protection circuit 660 is made to be in guard mode.

In the present embodiment, the voltage system of bias generator according to the trigger voltage of bidirectional triode thyristor 661, the 4th resistance 671 and 3rd resistor 664 in parallel and the dividing ratios of first resistor 665 and the 4th resistance 671 and 3rd resistor 664 in parallel and The dividing ratios of second resistance 666 determine.Thereby, the voltage of bias generator the former dividing ratios partial pressure after less than it is two-way can The trigger voltage of silicon 661 is controlled, and is higher than the trigger voltage of bidirectional triode thyristor 661 after the dividing ratios of the latter partial pressure.It is, When the electric current of the LED module is more than overcurrent value, the dividing ratios are turned up in bleeder circuit, and reach sluggish work relatively With.In terms of specific implementation, the first bipolar junction transistors 667 and the second bipolar junction transistors as switching switch 668 connect respectively determines that the first resistor 665 and second resistance 666 of dividing ratios, bleeder circuit are according to the electric current of LED module It is no to be more than overcurrent value, to determine what the first bipolar junction transistors 667 and 668 whichever of the second bipolar junction transistors end Person is connected, to determine dividing ratios.Voltage clamping circuit decides whether the voltage of strangulation LED module according to the partial pressure of bleeder circuit.

Then illustrate the operation for protecting the overvoltage protection of circuit 660.

The tie point of resistance 669 and capacitance 670 receives current sense signal S531, wherein current sense signal S531 generations The size of current that table LED module flows through.Therefore, protection circuit 660 still has the function of current protection at this time.4th resistance 671 The other end couple voltage end 521 ', in this embodiment, voltage end 521 ' couple LED module anode to detect LED modules Voltage.Do not include driving electricity in LED drive modules 530 such as the embodiments of Figure 27 A and Figure 27 B by taking the above embodiments as an example In the embodiment on road 1530, voltage end 521 ' couples the first filtering output end 521；In LED drive modules such as Figure 28 A to Figure 28 G In 530 embodiments comprising driving circuit 1530, voltage end 521 ' couples the first drive output 1521.In the present embodiment, 3rd resistor 664 and the dividing ratios of first resistor 665 and the 4th resistance 671 of 4th resistance 671 and parallel connection and in parallel The dividing ratios of 3rd resistor 664 and second resistance 666 will regard the voltage of voltage end 521 ', i.e. the first drive output 1521 or The voltage of first filtering output end 521 adjusts.Therefore, the overcurrent protection of protection circuit 660 still can normal operating.

When LED module normal operating, the current potential of the second end of bidirectional trigger diode 662 (by resistance 671 with it is in parallel First resistor 665 is determined with the dividing ratios of 3rd resistor 664 and the voltage of voltage end 521 ') it is not enough to triggering bidirectional triode thyristor 661.At this point, triggering bidirectional triode thyristor 661 is cut-off, protection circuit 660 is in unprotected state.When LED module operation exception And it is more than an overpressure value to cause the voltage of the anode of LED module.At this point, the current potential of the second end of bidirectional trigger diode 662 compared with First end that is high and making bidirectional trigger diode 662 is more than the trigger voltage of triggering bidirectional triode thyristor 661.At this point, triggering is two-way Silicon-controlled 661 be conducting, and protection circuit 660 is in the level of guard mode and strangulation filtered signal.

As described above, protection control circuit 660 can have overcurrent or over-voltage protecting function, or can have simultaneously The function of stream and overvoltage protection.

In addition, protection circuit 660 can be in the both ends parallel diode of 3rd resistor 664, with the voltage at strangulation both ends. The breakdown voltage of Zener diode is preferably 25-50V, more preferably 36V.

Furthermore bidirectional triode thyristor 661 can use thyristor (silicon controlled rectifier, SCR) Instead of the defencive function without influencing protection circuit.In particular, pressure drop when conducting can be reduced by using thyristor pipe.

In one embodiment, the component parameter of protection circuit 660 can be set as follows.The resistance value of resistance 669 is preferably 10 Europe Nurse.The capacitance of capacitance 670 is preferably 1nf.The capacitance of capacitance 633 is preferably 10nf.The voltage range of bidirectional trigger diode 662 26-36V.The resistance value of 4th resistance 671 is preferably 300K-600K ohm, more preferably 540K ohm.The resistance value of second resistance 666 Preferably 100K-300K ohm, more preferably 220K ohm.The resistance value of first resistor 665 is preferably 30K-100K ohm, more preferably It is 40K ohm.The resistance value of 3rd resistor 664 is preferably 100K-300K ohm, more preferably 220K ohm.

Referring to Figure 31 A, for according to the application circuit side of the power supply module of the LED light of the 5th preferred embodiment of the utility model Block schematic diagram.Compared to Figure 28 A illustrated embodiments, the present embodiment include the first rectification circuit 510 and the second rectification circuit 540, Filter circuit 520, the LED drive module 530 for including driving circuit 1530 and LED module 630, and more increase mode switching circuit 580.Mode switching circuit 580 couple the first filtering output end 521 and the second filtering output end 522 at least one and the One drive output 1521 and the second drive output 1522 at least one, to determine to carry out the first drive mode or the Two drive modes.Wherein, the first drive mode system is by filtered signal input driving circuit 1530, and the second drive mode system is at least The part component for bypassing driving circuit 1530, makes driving circuit 1530 stop operation and filtered signal is directly inputted and driven LED module 630.The part component of bypassed driving circuit 1530 includes inductance or switching switch, makes 1530 nothing of driving circuit Method carries out electrical power conversion and stops operation.Certainly, if the capacitance of driving circuit 1530 in the presence of and do not omit, still can be filtering Have the function that the voltage at stable LED module both ends except the ripple of filtered signal.When mode switching circuit 580 determines One drive mode and when by filtered signal input driving circuit 1530, filtered signal is converted into driving by driving circuit 1530 Signal is to drive LED module 630 to shine.When mode switching circuit 580 determines the second drive mode and filtered signal is direct When transporting to LED module 630 and bypassing driving circuit 1530, equivalent upper filter circuit 520 is the driving circuit of LED module 630, filter Wave circuit 520 provides the drive signal that filtered signal is LED module, to drive LED module to shine.

It is worth noting that, mode switching circuit 580 can be received according to the order of user or detecting LED light via First pin 501, the second pin 502, third pin 503 and 504 received signal of the 4th pin judge, and determine first Drive mode or the second drive mode.By mode switching circuit, the power supply module of LED light can correspond to different application environments Or drive system, and drive mode appropriate is adjusted, thus improve the compatibility of LED light.

Referring to Figure 31 B, for according to the circuit diagram of the mode switching circuit of the first preferred embodiment of the utility model.Mould Formula switching circuit 680 includes mode selector switch 681, is suitable for driving circuit 1630 shown in Figure 28 C.Please referring also to scheme 31B and Figure 28 C, there are three endpoint 683,684,685, endpoints 683 to couple the second drive output for the tool of mode selector switch 681 1522, endpoint 684 couples the second filtering output end 522 and endpoint 685 couples the inductance 1632 of driving circuit 1630.

When mode switching circuit 680 determines first mode, the first of endpoint 683 and 685 is connected in mode selector switch 681 Current path and the second current path for ending endpoint 683 and 684.At this point, the second drive output 1522 and 1632 coupling of inductance It connects.Therefore, 1630 normal operation of driving circuit will receive filter by the first filtering output end 521 and the second filtering output end 522 It signal and is converted into drive signal after wave LED modules is driven by the first drive output 1521 and the second drive output 1522.

When mode switching circuit 680 determines second mode, the second of endpoint 683 and 684 is connected in mode selector switch 681 Current path and the first current path for ending endpoint 683 and 685.At this point, the driving output of the second filtering output end 522 and second 1522 coupling of end.Therefore, driving circuit 1630 stops operating.Filtered signal is filtered by the first filtering output end 521 and second Output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, and bypasses and drive The inductance 1632 and switching switch 1635 of dynamic circuit 1630.

Referring to Figure 31 C, for according to the circuit diagram of the mode switching circuit of the second preferred embodiment of the utility model.Mould Formula switching circuit 780 includes mode selector switch 781, is suitable for driving circuit 1630 shown in Figure 28 C.Please referring also to scheme 31C and Figure 28 C, there are three end 783,784,785, endpoints 783 to couple the second filtering output end 522 for the tool of mode selector switch 781, Endpoint 784 couples the second drive output 1522 and endpoint 785 couples the switching switch 1635 of driving circuit 1630.

When mode switching circuit 780 determines first mode, the first of endpoint 783 and 785 is connected in mode selector switch 781 Current path and the second current path for ending endpoint 783 and 784.At this point, the second filtering output end 522 and switching switch 1635 Coupling.Therefore, 1630 normal operation of driving circuit will be received by the first filtering output end 521 and the second filtering output end 522 Filtered signal is simultaneously converted into drive signal by the first drive output 1521 and the second drive output 1522 driving LED moulds Block.

When mode switching circuit 780 determines second mode, the second of endpoint 783 and 784 is connected in mode selector switch 781 Current path and the first current path for ending endpoint 783 and 785.At this point, the driving output of the second filtering output end 522 and second 1522 coupling of end.Therefore, driving circuit 1630 stops operating.Filtered signal is filtered by the first filtering output end 521 and second Output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, and bypasses and drive The inductance 1632 and switching switch 1635 of dynamic circuit 1630.

Referring to Figure 31 D, for according to the circuit diagram of the mode switching circuit of the utility model third preferred embodiment.Mould Formula switching circuit 880 includes mode selector switch 881, is suitable for driving circuit 1730 shown in Figure 28 D.Please referring also to scheme 31D and Figure 28 D, there are three endpoint 883,884,885, endpoints 883 to couple the first filtering output end for the tool of mode selector switch 881 521, endpoint 884 couples the first drive output 1521 and endpoint 885 couples the inductance 1732 of driving circuit 1730.

When mode switching circuit 880 determines first mode, the first of endpoint 883 and 885 is connected in mode selector switch 881 Current path and the second current path for ending endpoint 883 and 884.At this point, the first filtering output end 521 and 1732 coupling of inductance It connects.Therefore, 1730 normal operation of driving circuit will be accepted filter by the first filtering output end 521 and the second filtering output end 522 It signal and is converted into drive signal afterwards LED module is driven by the first drive output 1521 and the second drive output 1522.

When mode switching circuit 880 determines second mode, the second of endpoint 883 and 884 is connected in mode selector switch 881 Current path and the first current path for ending endpoint 883 and 885.At this point, the driving output of the first filtering output end 521 and first 1521 coupling of end.Therefore, driving circuit 1730 stops operating.Filtered signal is filtered by the first filtering output end 521 and second Output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, and bypasses and drive The inductance 1732 and fly-wheel diode 1733 of dynamic circuit 1730.

Referring to Figure 31 E, for according to the circuit diagram of the mode switching circuit of the 4th preferred embodiment of the utility model.Mould Formula switching circuit 980 includes mode selector switch 981, is suitable for driving circuit 1730 shown in Figure 28 D.Please referring also to scheme 31E and Figure 28 D, there are three endpoint 983,984,985, endpoints 983 to couple the first drive output for the tool of mode selector switch 981 1521, endpoint 984 couples the first filtering output end 521 and endpoint 985 couples the fly-wheel diode 1733 of driving circuit 1730 Cathode.

When mode switching circuit 980 determines first mode, the first of endpoint 983 and 985 is connected in mode selector switch 981 Current path and the second current path for ending endpoint 983 and 984.At this point, the cathode of fly-wheel diode 1733 and the first filtering Output end 521 couples.Therefore, 1730 normal operation of driving circuit, will be by the first filtering output end 521 and the second filtering output end 522 accept filter after signal and be converted into drive signal and driven by the first drive output 1521 and the second drive output 1522 Dynamic LED module.

When mode switching circuit 980 determines second mode, the second of endpoint 983 and 984 is connected in mode selector switch 981 Current path and the first current path for ending endpoint 983 and 985.At this point, the driving output of the first filtering output end 521 and first 1521 coupling of end.Therefore, driving circuit 1730 stops operating.Filtered signal is filtered by the first filtering output end 521 and second Output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, and bypasses and drive The inductance 1732 and fly-wheel diode 1733 of dynamic circuit 1730.

Referring to Figure 31 F, for according to the circuit diagram of the mode switching circuit of the 5th preferred embodiment of the utility model.Mould Formula switching circuit 1680 includes mode selector switch 1681, is suitable for driving circuit 1830 shown in Figure 28 E.Please referring also to scheme 31F and Figure 28 E, for the tool of mode selector switch 1681 there are three endpoint 1683,1684,1685, first filtering of the coupling of endpoint 1683 is defeated Outlet 521, endpoint 1684 couples the first drive output 1521 and endpoint 1685 couples the switching switch of driving circuit 1830 1835。

When mode switching circuit 1680 determines first mode, endpoint 1683 and 1685 is connected in mode selector switch 1681 The first current path and end the second current path of endpoint 1683 and 1684.At this point, the first filtering output end 521 and switching Switch 1835 couples.Therefore, 1830 normal operation of driving circuit, will be by the first filtering output end 521 and the second filtering output end 522 accept filter after signal and be converted into drive signal and driven by the first drive output 1521 and the second drive output 1522 Dynamic LED module.

When mode switching circuit 1680 determines second mode, endpoint 1683 and 1684 is connected in mode selector switch 1681 The second current path and end the first current path of endpoint 1683 and 1685.At this point, the first filtering output end 521 and first Drive output 1521 couples.Therefore, driving circuit 1830 stops operating.Filtered signal by the first filtering output end 521 and Second filtering output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, And bypass the inductance 1832 and switching switch 1835 of driving circuit 1830.

Referring to Figure 31 G, for according to the circuit diagram of the mode switching circuit of the 6th preferred embodiment of the utility model.Mould Formula switching circuit 1780 includes mode selector switch 1781, is suitable for driving circuit 1830 shown in Figure 28 E.Please referring also to scheme 31G and Figure 28 E, for the tool of mode selector switch 1781 there are three endpoint 1783,1784,1785, first filtering of the coupling of endpoint 1783 is defeated Outlet 521, endpoint 1784 couples the first drive output 1521 and endpoint 1785 couples the inductance of driving circuit 1830 1832。

When mode switching circuit 1780 determines first mode, endpoint 1783 and 1785 is connected in mode selector switch 1781 The first current path and end the second current path of endpoint 1783 and 1784.At this point, the first filtering output end 521 and inductance 1832 couplings.Therefore, 1830 normal operation of driving circuit, will be by the first filtering output end 521 and the second filtering output end 522 It signal and is converted into drive signal after accepting filter and is driven by the first drive output 1521 and the second drive output 1522 LED module.

When mode switching circuit 1780 determines second mode, endpoint 1783 and 1784 is connected in mode selector switch 1781 The second current path and end the first current path of endpoint 1783 and 1785.At this point, the first filtering output end 521 and first Drive output 1521 couples.Therefore, driving circuit 1830 stops operating.Filtered signal by the first filtering output end 521 and Second filtering output end 522 inputs directly drives LED module by the first drive output 1521 and the second drive output 1522, And bypass the inductance 1832 and switching switch 1835 of driving circuit 1830.

Referring to Figure 31 H, for according to the circuit diagram of the mode switching circuit of the 7th preferred embodiment of the utility model.Mould Formula switching circuit 1880 includes mode selector switch 1881 and 1882, is suitable for driving circuit 1930 shown in Figure 28 F.Please simultaneously Referring to Figure 31 H and Figure 28 F, there are three endpoint 1883,1884,1885, the couplings of endpoint 1,883 first for the tool of mode selector switch 1881 Drive output 1521, endpoint 1884 couples the first filtering output end 521 and endpoint 1885 couples the continuous of driving circuit 1930 Flow diode 1933.There are three endpoint 1886,1887,1888, second drivings of the coupling of endpoint 1886 for the tool of mode selector switch 1882 Output end 1522, endpoint 1887 couples the second filtering output end 522 and endpoint 1888 couples the first filtering output end 521.

When mode switching circuit 1880 determines first mode, endpoint 1883 and 1885 is connected in mode selector switch 1881 The first current path and end endpoint 1883 and 1884 the second current path and mode selector switch 1882 be connected endpoint 1886 and 1888 third current path and the 4th current path for ending endpoint 1886 and 1887.At this point, the first driving output End 1521 is coupled with fly-wheel diode 1933, and the first filtering output end 521 and the second drive output 1522 couple.Therefore, 1930 normal operation of driving circuit, signal is simultaneously after being accepted filter by the first filtering output end 521 and the second filtering output end 522 It is converted into drive signal and LED module is driven by the first drive output 1521 and the second drive output 1522.

When mode switching circuit 1880 determines second mode, endpoint 1883 and 1884 is connected in mode selector switch 1881 The second current path and end endpoint 1883 and 1885 the first current path and mode selector switch 1882 be connected endpoint 1886 and 1887 the 4th current path and the third current path for ending endpoint 1886 and 1888.At this point, the first filtering output End 521 and the first drive output 1521 couple, and the second filtering output end 522 and the second drive output 1522 couple. Therefore, driving circuit 1930 stops operating.Filtered signal is defeated by the first filtering output end 521 and the second filtering output end 522 Enter and LED module is directly driven by the first drive output 1521 and the second drive output 1522, and bypasses driving circuit 1930 Fly-wheel diode 1933 and switching switch 1935.

Referring to Figure 31 I, for according to the circuit diagram of the mode switching circuit of the 8th preferred embodiment of the utility model.Mould Formula switching circuit 1980 includes mode selector switch 1981 and 1982, is suitable for driving circuit 1930 shown in Figure 28 F.Please simultaneously Referring to Figure 31 I and Figure 28 F, there are three endpoint 1983,1984,1985, the couplings of endpoint 1,983 second for the tool of mode selector switch 1981 Filtering output end 522, endpoint 1984 couples the second drive output 1522 and endpoint 1985 couples cutting for driving circuit 1930 Change switch 1935.For the tool of mode selector switch 1982 there are three endpoint 1986,1987,1988, first filtering of the coupling of endpoint 1986 is defeated Outlet 521, endpoint 1987 couples the first drive output 1521 and endpoint 1988 couples the second drive output 1522.

When mode switching circuit 1980 determines first mode, endpoint 1983 and 1985 is connected in mode selector switch 1981 The first current path and end endpoint 1983 and 1984 the second current path and mode selector switch 1982 be connected endpoint 1986 and 1988 third current path and the 4th current path for ending endpoint 1986 and 1987.At this point, the second filtering output End 522 is coupled with switching switch 1935, and the first filtering output end 521 and the second drive output 1522 couple.Therefore, it drives 1930 normal operation of circuit signal and will be converted after being accepted filter by the first filtering output end 521 and the second filtering output end 522 LED module is driven by the first drive output 1521 and the second drive output 1522 at drive signal.

When mode switching circuit 1980 determines second mode, endpoint 1983 and 1984 is connected in mode selector switch 1981 The second current path and end endpoint 1983 and 1985 the first current path and mode selector switch 1982 be connected endpoint 1986 and 1987 the 4th current path and the third current path for ending endpoint 1986 and 1988.At this point, the first filtering output End 521 and the first drive output 1521 couple, and the second filtering output end 522 and the second drive output 1522 couple. Therefore, driving circuit 1930 stops operating.Filtered signal is defeated by the first filtering output end 521 and the second filtering output end 522 Enter and LED module is directly driven by the first drive output 1521 and the second drive output 1522, and bypasses driving circuit 1930 Fly-wheel diode 1933 and switching switch 1935.

It is led it is worth noting that, the mode selector switch in above-described embodiment can be single-pole double-throw switch (SPDT) or two and half Body switch (such as：Metal-oxide half field effect transistor), it is conducting for switching one of two current paths, it is another for cut-off. Current path system makes the electric current of filtered signal flow through one of them to reach mould to provide the guiding path of filtered signal The function of formula selection.For example, please referring also to Figure 24 A, when lamp tube drive circuit 505 is not present and by AC power 508 Directly when supplying electricity to LED straight lamps 500, mode switching circuit can determine first mode, by driving circuit by filtered signal It is converted into drive signal, so that the level of drive signal is matched LED module and shines required level, and correctly driven LED modules shine.In the presence of lamp tube drive circuit 505, mode switching circuit can determine second mode, by believing after filtering LED module number is directly driven to shine；Or can also determine first mode, still filtered signal is converted into driving by driving circuit Dynamic signal is to drive LED module to shine.

Figure 32 A are referred to, for according to the application of the power supply module of the LED straight lamps of the 6th preferred embodiment of the utility model Circuit box schematic diagram.Compared to Figure 24 B illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510 And second rectification circuit 540, filter circuit 520 and LED drive module 530, and more increase overvoltage crowbar 1570.Overvoltage is protected Protection circuit 1570 couples the first filtering output end 521 and the second filtering output end 522, to detect filtered signal, and in filtering When the level of signal is higher than setting overpressure value afterwards, the level of strangulation filtered signal.Therefore, overvoltage crowbar 1570 can be protected The component for protecting LED drive module 530 is not damaged because crossing high pressure.

Figure 32 B are referred to, for according to the circuit diagram of the overvoltage crowbar of the utility model preferred embodiment.Overvoltage It includes zener diode 1671 to protect circuit 1670, such as：Zener diode (Zener Diode), coupling the first filtering output End 521 and the second filtering output end 522.Zener diode 1671 is in the first filtering output end 521 and the second filtering output end 522 voltage difference (that is, level of filtered signal) is connected when reaching breakdown voltage, makes voltage difference strangulation on breakdown voltage. Breakdown voltage is preferably in the range of 40-100V, more preferably the range of 55-75V.

Figure 33 A are referred to, for according to the application of the power supply module of the LED straight lamps of the 7th preferred embodiment of the utility model Circuit box schematic diagram.The LED light of the present embodiment includes the first rectification circuit 510 and the second rectification circuit 540, filter circuit 520, LED drive module 530 and two filament artificial circuits 1560, and more increase ballast circuit for detecting 1590.Ballast circuit for detecting 1590 can be coupled to the first pin 501, the second pin 502, third pin 503 and the 4th pin 504 it is any with it is first whole Corresponding rectification circuit in current circuit 510 and the second rectification circuit 540.In the present embodiment, ballast circuit for detecting 1590 couples Between the first pin 501 and the first rectification circuit 510.

Ballast circuit for detecting 1590 detects alternating current drive signal or by the first pin 501, the second pin 502, third Pin 503 and the signal of the 4th pin 504 input, and judge whether inputted signal is electric ballast according to detecting result It is provided.

Figure 33 B are referred to, for according to the application of the power supply module of the LED straight lamps of the 8th preferred embodiment of the utility model Circuit box schematic diagram.Compared to the embodiment of Figure 33 A, second rectification circuit 540 of the present embodiment is using whole shown in Figure 25 C Current circuit 810.Ballast circuit for detecting 1590 is coupled between rectification unit 815 and endpoint conversion circuit 541.Rectification unit 815 And one of endpoint conversion circuit 541 couples third pin 503 and the 4th pin 504, the first rectification output end of another coupling 511 and second rectification output end 512.In the present embodiment, rectification unit 815 couples third pin 503 and the 4th pin 504, and Endpoint conversion circuit 541 couples the first rectification output end 511 and the second rectification output end 512.Similarly, ballast circuit for detecting The signal that 1590 detectings are inputted by third pin 503 or the 4th pin 504, according to the frequency of signal to determine whether electronics Ballast is provided.

Furthermore the present embodiment can also change by the first rectification circuit 510 using rectification circuit 810 shown in Figure 25 C, and will Ballast circuit for detecting 1590 is coupled between rectification unit 815 and endpoint conversion circuit 541.

Figure 33 C are referred to, for according to the circuit box schematic diagram of the ballast circuit for detecting of the utility model preferred embodiment. Ballast circuit for detecting 1590 includes circuit for detecting 1590a and switching circuit 1590b.Switching circuit 1590b the first switchings of coupling End 1591 and the second switch terminal 1592.Circuit for detecting 1590a coupling sense terminals 1593 and 1594 flow through sense terminal 1593 to detect And 1594 signal.Alternatively, can also omit sense terminal 1593 and 1594 and be commonly coupled to the first switch terminal 1591 and second Switch terminal 1592 flows through the signal of the first switch terminal 1591 and the second switch terminal 1592 to detect.Therefore, sense terminal in schema 1593 and 1594 are represented by dotted lines.

Figure 33 D are referred to, for according to the circuit diagram of the ballast circuit for detecting of the first preferred embodiment of the utility model. Ballast circuit for detecting 1690 includes circuit for detecting 1690a and switching circuit 1690b, is coupled to the first switch terminal 1591 and second Between switch terminal 1592.Circuit for detecting 1690a includes bidirectional trigger diode 1691, resistance 1692 and 1696 and capacitance 1693,1697 and 1698.Switching circuit 1690b includes bidirectional triode thyristor 1699 and inductance 1694.

Capacitance 1698 is coupled between the first switch terminal 1591 and the second switch terminal 1592, and the first switching is flowed through to react End 1591 and second switch terminal 1592 signal and generate detecting voltage.When signal is high-frequency signal, the capacitive reactance of capacitance 1698 It is at a fairly low, and the detecting voltage generated is fairly small.When signal is low frequency signal or direct current signal, the capacitive reactance of capacitance 1698 is suitable Height, and the detecting voltage generated is quite high.Resistance 1692 and capacitance 1693 are series at the both ends of capacitance 1698, to capacitance 1698 Produced detecting voltage is filtered and detects voltage after the tie point of resistance 1692 and capacitance 1693 generates filtering.Resistance 1692 and capacitance 1693 filter action system to filter out detecting voltage high-frequency noise, to avoid malfunction caused by high-frequency noise Make.Resistance 1696 and capacitance 1697 are series at the both ends of capacitance 1693, and two-way triggering is transferred to detecting voltage after filtering One end of diode 1691.Resistance 1696 and capacitance 1697 carry out second of filtering to detecting voltage after filtering simultaneously, make detecting The filter effect of circuit 1690a is more preferably changed.According to different applications and noise filtering demand, capacitance 1697 can select omit and One end of bidirectional trigger diode 1691 is coupled to the tie point of resistance 1692 and capacitance 1693 by resistance 1696；Alternatively, electric Resistance 1696 and capacitance 1697 omit simultaneously and one end of bidirectional trigger diode 1691 is coupled directly to resistance 1692 and capacitance 1693 tie point.Therefore resistance 1696 and capacitance 1697 are represented by dotted lines in the drawings.Bidirectional trigger diode 1691 it is another End is coupled to the control terminal of the bidirectional triode thyristor 1699 of switching circuit 1690b.Bidirectional trigger diode 1691 is according to being received Signal level size, with decide whether generate control signal 1695 come trigger bidirectional triode thyristor 1699 be connected.Bidirectional triode thyristor 1699 first end couples the first switch terminal 1591, and second end couples the second switch terminal 1592 by inductance 1694.Inductance 1694 Effect be to protect bidirectional triode thyristor 1699 not because the signal for flowing through the first switch terminal 1591 and the second switch terminal 1592 is more than Maximum switching voltage build-up rate, under cut-off state repeatedly voltage peak and maximum switching electric current change rate and damage.

When the first switch terminal 1591 and 1592 received signal of the second switch terminal are low-frequency ac signal or direct current signal, The detecting voltage of capacitance 1698 make sufficiently high bidirectional trigger diode 1691 generate control signal 1695 come trigger it is two-way can Control silicon 1699.At this point, being short circuit between the first switch terminal 1591 and the second switch terminal 1592, and switching circuit 1690b is bypassed Circuit in parallel, such as：Circuit, the circuit for detecting being connected between the first switch terminal 1591 and the second switch terminal 1592 1690a, capacitance 1698 etc..

When the first switch terminal 1591 and 1592 received signal of the second switch terminal are high frequency ac signal, capacitance 1698 Detecting voltage be not sufficient to make bidirectional trigger diode 1691 to generate control signal 1695 to trigger bidirectional triode thyristor 1699.This When, bidirectional triode thyristor 1699 is cut-off, and high frequency ac signal is mainly transmitted via external circuit or circuit for detecting 1690a.

Therefore, ballast circuit for detecting 1690 may determine that whether the signal of input is handed over by the high frequency that electric ballast provides Signal is flowed, if high frequency ac signal is then made to flow through external circuit or circuit for detecting 1690a；If otherwise bypassing external circuit or detecing Slowdown monitoring circuit 1690a.It is worth noting that, capacitance 1698 can be replaced with capacitance in external circuit.

Figure 33 E are referred to, for according to the circuit diagram of the ballast circuit for detecting of the second preferred embodiment of the utility model. Ballast circuit for detecting 1790 includes circuit for detecting 1790a and switching circuit 1790b.Switching circuit 1790b is coupled to first and cuts It changes between end 1591 and the second switch terminal 1592.Circuit for detecting 1790a is coupled between sense terminal 1593 and 1594.Circuit for detecting Inductance 1791 of the 1790a comprising mutual inductance and 1792, capacitance 1793 and 1796, resistance 1794 and diode 1797.Switching circuit 1790b includes switching switch 1799.In the present embodiment, switching switch 1799 is the vague and general formula metal-oxide half field effect transistor (P- of p-type Type Depletion Mode MOSFET), it is cut-off when its gate voltage is higher than a critical voltage, is less than the critical voltage When for conducting.

Inductance 1792 is coupled between sense terminal 1593 and 1594, with mutual according to the signal for flowing through sense terminal 1593 and 1594 Sense makes inductance 1791 generate detecting voltage to inductance 1791.The level for detecting voltage gets higher with the frequency height of signal, becomes It is low.

When signal be high-frequency signal when, the induction reactance of inductance 1792 is quite high, mutual inductance to inductance 1791 and generate quite high Detect voltage.When signal be low frequency signal or direct current signal when, the induction reactance of inductance 1792 is at a fairly low, mutual inductance to inductance 1791 and Generate rather low detecting voltage.One end of inductance 1791 is grounded.Concatenated capacitance 1793 and resistance 1794 and inductance 1791 are simultaneously Connection detects voltage produced by inductance 1791 to receive, and carries out detecting voltage after generating filtering after High frequency filter.It is detected after filtering Voltage charges to capacitance 1796 after diode 1797 to generate control signal 1795.Since diode 1797 provides capacitance 1796 unidirectional chargings, therefore the maximum value for the detecting voltage that the level for controlling signal 1795 is inductance 1791.The coupling of capacitance 1796 is cut Change the control terminal of switch 1799.Switch the first end of switch 1799 and second end is respectively coupled to the first switch terminal 1591 and second cuts Change end 1592.

When sense terminal 1593 and 1594 received signals are low-frequency ac signal or direct current signal, produced by capacitance 1796 Control signal 1795 less than switching switch 1799 critical voltage and make switching switch 1799 conducting.At this point, the first switch terminal 1591 and second be short circuit between switch terminal 1592, and bypassed switching circuit 1790b external circuits in parallel.

When sense terminal 1593 and 1594 received signals are high frequency ac signal, signal is controlled caused by capacitance 1796 1795 make switching switch 1799 end higher than the critical voltage of switching switch 1799.At this point, high frequency ac signal mainly via External circuit transmits.

Therefore, ballast circuit for detecting 1790 may determine that whether the signal of input is handed over by the high frequency that electric ballast provides Signal is flowed, if then high frequency ac signal is made to flow through external circuit；If otherwise bypassing external circuit.

Addition ballast circuit for detecting in LED light will be illustrated next, the conducting (bypass) and cut-off of switching circuit be not (other It is logical) operation.For example, the first switch terminal 1591 and the coupling of the second switch terminal 1592 and the concatenated capacitance of LED light, that is, drive The signal of dynamic LED straight lamps can also flow through this capacitance.This capacitance, which can be arranged, connects in the inside of LED straight lamps with internal circuit Or it is connected on outside LED straight lamps.Please referring also to Figure 25 A, in the absence of lamp tube drive circuit 505, AC power 508 Low pressure, low-frequency ac drive signal are provided as external drive signal to drive LED straight lamps 500.At this point, ballast circuit for detecting Switching circuit conducting, so that the alternating current drive signal of AC power 508 is directly driven the internal circuit of LED straight lamps.Fluorescent tube drives In the presence of dynamic circuit 505, lamp tube drive circuit 505 generates high pressure, high frequency ac signal to drive LED straight lamps 500.At this point, The switching circuit of ballast circuit for detecting is ended, this capacitance is connected with the equivalent capacity inside LED straight lamps, thus reaches capacitance point The effect of pressure.Thereby, can make the voltage for being applied to LED straight lamp internal circuits it is relatively low (such as：Fall the model in 100-277V In enclosing) it is damaged because of high pressure to avoid internal circuit.

It is worth noting that, switching circuit can include multiple changeover modules, come simultaneously with providing more than two switch terminals Connection connects the capacitance of multiple parallel connections), to actually reach the equivalent effect with the concatenated multiple capacitance bypass of LED straight lamps.

In addition, also illustrating how the ballast circuit for detecting of the utility model is cut with pattern shown in Figure 31 A to Figure 31 I herein Change circuit combined use.Switching circuit replaces in mode for switching circuit in ballast circuit for detecting.In ballast circuit for detecting Circuit for detecting is coupled to one of the first pin 501 of input, the second pin 502, third pin 503 and the 4th pin 504, with Detecting is input to the signal of LED light via the first pin 501, the second pin 502, third pin 503 and the 4th pin 504.It detects Slowdown monitoring circuit generates control signal according to the frequency of signal, and switching circuit is first mode or second mode for controlling the mode.

For example, when signal is higher than setting pattern switching frequency for high-frequency signal, such as：By lamp tube drive circuit The control signal of 505 high-frequency signals provided, circuit for detecting will make mode switching circuit be second mode, by the filtering Signal directly inputs the LED module afterwards；When signal is less than setting pattern switching frequency for low frequency or direct current signal, example Such as：The control signal of the low frequency or direct current signal that alternating current or battery are provided, circuit for detecting will make mode switching circuit be first The filtered signal is directly inputted the driving circuit by pattern.

Figure 34 A are referred to, for according to the application of the power supply module of the LED straight lamps of the 9th preferred embodiment of the utility model Circuit box schematic diagram.The LED straight lamps of the present embodiment include the first rectification circuit 510 and the second rectification circuit 540, filtered electrical Road 520, LED drive module 530 and two filament artificial circuits 1560, and more increase auxiliary power module 2510.Accessory power supply mould Block 2510 is coupled between the first filtering output end 521 and the second filtering output end 522.The detecting of auxiliary power module 2,510 the Filtered signal on one filtering output end 521 and the second filtering output end 522, and according to detecting result decide whether to provide auxiliary Help electric power to the first filtering output end 521 and the second filtering output end 522.When filtered signal stops providing or exchanges level not When sufficient, i.e., when the driving voltage of LED module is less than a boost voltage, auxiliary power module 2510 provides auxiliary power, makes LED Drive module 530 can be with continuous illumination.Boost voltage is determined according to an accessory power supply voltage of auxiliary power module.Two filaments Artificial circuit 1560 is that can be omitted, and is represented by dotted lines in the drawings.

Figure 34 B are referred to, for according to the application of the power supply module of the LED straight lamps of the tenth preferred embodiment of the utility model Circuit box schematic diagram.Compared to Figure 34 A illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510 And second rectification circuit 540, filter circuit 520, LED drive module 530, two filament artificial circuits 1560 and auxiliary power module 2510, and LED drive module 530 further includes driving circuit 1530 and LED module 630.The coupling of auxiliary power module 2,510 first Between drive output 1521 and the second drive output 1522.Auxiliary power module 2510 detects the first drive output 1521 And second drive output 1522 drive signal, and according to detecting result decide whether provide auxiliary power to first driving it is defeated Outlet 1521 and the second drive output 1522.When drive signal stops providing or exchanging level deficiency, auxiliary power module 2510 provide auxiliary power, make LED module 630 can be with continuous illumination.Two filament artificial circuits 1560 are that can be omitted, in schema In be represented by dotted lines.

Figure 34 C are referred to, for according to the circuit diagram of the auxiliary power module of the utility model preferred embodiment.Auxiliary Power module 2610 includes energy-storage units 2613 and voltage detection circuit 2614.Auxiliary power module 2610 is simultaneously electric with auxiliary Source anode 2611 and accessory power supply negative terminal 2612 be respectively coupled to the first filtering output end 521 and the second filtering output end 522 or First drive output 1521 and the second drive output 1522.Voltage detection circuit 2614 detects accessory power supply anode 2611 And on accessory power supply negative terminal 2612 signal level, with decide whether by the electric power of energy-storage units 2613 penetrate accessory power supply anode 2611 and accessory power supply negative terminal 2612 outward discharge.

In the present embodiment, energy-storage units 2613 are battery or super capacitor.Voltage detection circuit 2614 is more in auxiliary electricity When the level of the signal of source anode 2611 and accessory power supply negative terminal 2612 is higher than the voltage of energy-storage units 2613, just with accessory power supply Signal on end 2611 and accessory power supply negative terminal 2612 charges to energy-storage units 2613.When accessory power supply anode 2611 and auxiliary electricity When the signal level of source negative terminal 2612 is less than the voltage of energy-storage units 2613, energy-storage units 2613 are through accessory power supply anode 2611 And accessory power supply negative terminal 2612 is to external discharge.

Voltage detection circuit 2614 includes diode 2615, bipolar junction transistors 2616 and resistance 2617.Diode The anode of 2615 anode coupling energy-storage units 2613, cathode couple accessory power supply anode 2611.The cathode of energy-storage units 2613 Couple accessory power supply negative terminal 2612.The collector coupling accessory power supply anode 2611 of bipolar junction transistors 2616, emitter-base bandgap grading coupling The anode of energy-storage units 2613.2617 one end of resistance couples accessory power supply anode 2611, and the other end couples bipolar junction crystal The base stage of pipe 2616.Resistance 2617 makes double when the collector of bipolar junction transistors 2616 is higher than one conducting voltage of emitter-base bandgap grading Carrier junction transistor 2616 is connected.When driving the power supply of LED straight lamps normal, filtered signal is through the first filtering output end 521 and second filtering output end 522 and conducting bipolar junction transistors 2616 to energy-storage units 2613 charge, or driving letter Number through the first drive output 1521 and the second drive output 1522 and conducting bipolar junction transistors 2616 to energy storage Unit 2613 charges, until the difference of collector-shooting of bipolar junction transistors 2616 is equal to or less than conducting voltage.When When filtered signal or drive signal stop providing or level declines suddenly, energy-storage units 2613 provide electricity by diode 2615 Power is to LED drive module 530 or LED module 630 to maintain to shine.

It is worth noting that, ceiling voltage stored when the charging of energy-storage units 2613 will be electric at least below auxiliary is applied to The conducting voltage of source anode 2611 and one bipolar junction transistors 2616 of voltage of accessory power supply negative terminal 2612.Energy-storage units It is less than the electricity of energy-storage units 2613 when 2613 electric discharge by the voltage that accessory power supply anode 2611 and accessory power supply negative terminal 2612 export Press the threshold voltage of a diode 2615.Therefore, when auxiliary power module starts power supply, the voltage provided will be relatively low (summation for being approximately equal to the threshold voltage of diode 2615 and the conducting voltage of bipolar junction transistors 2616).In Figure 34 B institutes Voltage, which reduces, in the embodiment shown, when auxiliary power module is powered can be such that the brightness of LED module 630 is decreased obviously.In this way, when auxiliary When power module being helped to be applied to emergency lighting system or be always on lighting system, user is known that key lighting power supply, such as：City Electricity, it is abnormal, and the necessary precautionary measures can be carried out.

Figure 35 A are referred to, for answering according to the power supply module of the LED straight lamps of the 11st preferred embodiment of the utility model With circuit block schematic diagram.Compared to Figure 24 B illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510 and second rectification circuit 540, filter circuit 520, LED drive module 530, and more increase detecting module 2520.Detecting module 2520 couple the first rectification circuit 510 (and/or second rectification circuit 540) through the first sense terminal 2521, and through the second detecting 2522 coupling filter circuit 520 of end.Detecting module 2520 detects the letter for flowing through the first sense terminal 2521 and the second sense terminal 2522 Number, and decide whether that ending external drive signal flows through LED straight lamps according to detecting result.When LED straight lamps are not yet formally pacified When loaded on lamp holder, detecting module 2520 can detect smaller current signal and judge that signal flows through excessively high impedance, detects at this time The cut-off of module 2520 makes LED straight lamps stop operation.If it is not, detecting module 2520 judges that LED straight lamps are correctly installed on lamp holder On, detecting module 2520 maintains conducting to make LED straight lamp normal operatings.That is, when flow through first sense terminal and described the When one electric current of two sense terminals is greater than or equal to set-mounted electric current (or a current value), detecting module judges LED straight lamps It is correctly installed on lamp holder and is connected, LED straight lamps is made to operate in a conducting state；When flowing through first sense terminal and institute When stating an electric current of the second sense terminal less than described set-mounted electric current (or current value), detecting module judges LED straight lamps not It is correctly installed on lamp holder and ends, LED straight lamps is made to enter a not on-state.In other words, detecting module 2520 is based on The impedance of detecting judges on or off, so that LED straight lamps is operated in conducting or enters not on-state.It thereby, can be to avoid The problem of user gets an electric shock when LED straight lamps are not yet correctly installed on lamp holder because accidentally touching LED straight lamp current-carrying parts.

Figure 35 B are referred to, for according to the circuit diagram of the detecting module of the utility model preferred embodiment.Detecting module Including module 2540 (to generate or occur the pulse for detection), inspection occur for switching circuit 2580, detection pulse (pulse) Survey result latch cicuit 2560 and detection decision circuit 2570.Detect decision circuit 2570 (through switch coupling end 2581 and Switching circuit 2580) coupling the first sense terminal 2521 and coupling the second sense terminal 2522, with detect the first sense terminal 2521 with And the second signal between sense terminal 2522.Detecting decision circuit 2570, result end 2571 couples testing result lock after testing simultaneously Circuit 2560 is deposited, result end 2571 is sent to testing result latch cicuit 2560 after testing by testing result signal.Detect arteries and veins Punching occurs module 2540 and couples testing result latch cicuit 2560 by pulse signal output end 2541, and generate pulse signal with Testing result latch cicuit 2560 is notified to latch the opportunity point of testing result.Testing result latch cicuit 2560 is according to testing result Signal (or testing result signal and pulse signal) latches testing result, and result latches end 2561 and couples switching circuit after testing 2580, testing result is transmitted or is reflected into switching circuit 2580.According to testing result, decision makes first to switching circuit 2580 On or off between sense terminal 2521 and the second sense terminal 2522.

Figure 35 C are referred to, for according to the circuit diagram of the detection pulse generating module of the utility model preferred embodiment. It includes capacitance 2642 (or third capacitor), 2645 (or first capacitors) and 2646 to detect pulse generating module 2640 (or second capacitor), resistance 2643 (or 3rd resistor device), 2647 (or first resistor devices) and 2648 (or second Resistor), buffer (buffer) 2644 (or being the second buffer) and 2651 (or being the first buffer), reverser 2650, diode 2649 and or door (OR gate) 2652.In use or operation, capacitance 2642 and resistance 2643 are series at One driving voltage (such as be known as VCC, and often ordered as a high level) and reference potential (implemented herein for it with the current potential on ground Example) between, tie point couples the input terminal of buffer 2644.Resistance 2647 be coupled to a driving voltage (can be described as VCC) and The input terminal of reverser 2650.Resistance 2648 be coupled to buffer 2651 input terminal and a reference potential (herein with the electricity on ground Position is embodiment) between.The positive ending grounding of diode, negative terminal are also coupled to the input terminal of buffer 2651.The one of capacitance 2645 End and 2646 one end couple the output end of buffer 2644 jointly, and the other end of capacitance 2645 connects the input of reverser 2650 End, and the other end of capacitance 2646 then couples the input terminal of buffer 2651.The output end and buffer 2651 of reverser 2650 Output end coupling or door 2652 input terminal.It is noted that in this case this specification, current potential its " high level " with it is " low Level " is relative to for another current potential in circuit or certain reference potential, and again can be respectively as " logic high " With " logic low ".

When one end lamp cap of LED straight lamps is inserted into pair of lamp holder and other end lamp cap human body in electrical contact or LED straight lamps When end lamp cap is inserted into lamp holder, LED straight lamps are powered.At this point, detecting module enters detection-phase.Capacitance 2642 and resistance 2643 Connection level point be high (being equal to driving voltage VCC) at the beginning, be gradually reduced at any time after, be finally down to zero.Buffer The tie point of 2644 input terminal coupling capacitance 2642 and resistance 2643, therefore high level signal is exported at the beginning, and in electricity When appearance 2642 and the connection level point of resistance 2643 are down to low logic decision level, low level signal is changed into.It is, buffer 2644 generate an input pulse signal, persistently maintain low level (stopping exporting the input pulse signal) later.The input The pulse width of pulse signal be equal to (initial setting) time cycle, and the time cycle by the capacitance of capacitance 2642 with And the resistance value of resistance 2643 determines.

Then illustrate that buffer 2644 generates the operation in the setting time period of pulse signal.Due to capacitance 2645 and resistance 2647 one end is equal to driving voltage VCC, therefore the connecting pin of capacitance 2645 and resistance 2647 is also high level.In addition, electric One end ground connection of resistance 2648, one end of capacitance 2646 receive the pulse signal of buffer 2644.So capacitance 2646 and resistance 2648 connecting pin in high level at the beginning, then at any time gradually on be down to zero and (store and be equal or close to time capacitance The voltage of driving voltage VCC).Therefore, reverser 2650 exports low level signal, and buffer 2651 then exports high level letter Number, and make or door 2652 in pulse signal output end 2541 export high level signal (the first pulse signal).At this point, testing result Signal and pulse signal latch testing result to latch cicuit 2560 for the first time according to testing result.When capacitance 2646 and resistance 2648 The level of connecting pin when being down to low logic decision level, buffer 2651 switchs to export low level signal, and makes or door 2652 Low level signal (stopping the first pulse signal of output) is exported in pulse signal output end 2541.Or the pulse that door 2652 is exported The pulsewidth of signal is determined by the capacitance of capacitance 2646 and the resistance value of resistance 2648.

Then the operation being illustrated in after the stopping output pulse signal of buffer 2644, that is, enter the operation of operational phase. Since capacitance 2646 stores the voltage close to driving voltage VCC, switched to by high level in the output of buffer 2644 low The moment of level, capacitance 2646 and the level of the connecting pin of resistance 2648 can be less than zero, and fast to capacitance via diode 2649 Speed charges and the level of connecting pin is made to retract zero.Therefore, buffer 2651 still maintains output low level signal.

On the other hand, low level moment is switched to by high level in the output of buffer 2644, one end of capacitance 2645 Level reduces by zero by driving voltage VCC moments, and it is low level to make the connecting pin of capacitance 2645 and resistance 2647.Reverser 2650 Output signal switch to high level, and make or door output high level (the second pulse signal).At this point, testing result latch cicuit 2560 signal and pulse signal latch testing result for the second time according to testing result.Then, resistance 2647 fills capacitance 2645 Electricity, make the level of the connecting pin of capacitance 2645 and resistance 2647 be gradually increasing at any time and to equal than driving voltage VCC.Work as appearance 2645 with the level of the connecting pin of resistance 2647 when rising supreme logic judgment level, and reverser 2650 exports low level once again, And make or door 2652 stop output the second pulse signal.The pulsewidth of second pulse signal by capacitance 2645 capacitance and resistance 2647 Resistance value determined.

As described above, detection pulse generating module 2640 will produce the pulse signal-the of two high level in detection-phase One pulse signal and the second pulse signal, are exported by pulse signal output end 2541, and the first pulse signal and the second pulse A setting time interval is spaced between signal, setting time interval is mainly by the capacitance of capacitance 2642 and the resistance value of resistance 2643 To determine.

And entering the operational phase after detection-phase, detection pulse generating module 2640 no longer generates pulse signal, and ties up It is low level to hold pulse signal output end 2541.Figure 35 D are referred to, to judge according to the detection of the utility model preferred embodiment The circuit diagram of circuit.It includes comparator 2671 and resistance 2672 to detect decision circuit 2670.The reverse phase of comparator 2671 End receives reference level signal Vref, and non-invert side is through the ground connection of resistance 2672 and couples switch coupling end 2581 simultaneously.Please simultaneously Referring to Figure 35 A, the signal that switching circuit 2580 is flowed by the first sense terminal 2521 can be flowed via the switch coupling output of end 2581 Cross resistance 2672.When the electric current for flowing through resistance 2672 it is excessive (that is, be greater than or equal to set-mounted electric current, such as：Current value 2A) And (it can correspond to two lamp cap when level on resistance 2672 being made to be higher than the level of reference level signal Vref and be correctly inserted into institute State lamp holder), comparator 2671 generates the testing result signal of high level and is exported by testing result end 2571.For example, working as LED When straight lamp is correctly installed on lamp holder, comparator 2671 can export the testing result signal of high level in testing result end 2571. It (can be right when the electric current deficiency for flowing through resistance 2672 makes the level on resistance 2672 be higher than the level of reference level signal Vref The lamp holder should be correctly inserted into only one of which lamp cap), comparator 2671 generate low level testing result signal and by Testing result end 2571 exports.For example, work as, when LED straight lamps are not correctly installed on lamp holder or one end is installed on lamp holder and When the other end is through human body grounding, electric current makes comparator 2671 export low level detection knot in testing result end 2571 by too small Fruit signal.

Figure 35 E are referred to, for according to the circuit diagram of the testing result latch cicuit of the utility model preferred embodiment. Testing result latch cicuit 2660 includes D flip-flop (D Flip-flop) 2661, resistance 2662 and or door 2663.D types touch Send out clock input (CLK) the coupling testing result end 2571 of device 2661, input terminal D coupling driving voltages VCC.Work as testing result When end 2571 exports low level testing result signal, D flip-flop 2661 exports low level signal in output end Q；Work as detection As a result when the testing result signal of 2571 output high level of end, D flip-flop 2661 exports high level signal in output end Q.Electricity Resistance 2662 is coupled between the output end Q and reference potential (such as the current potential on ground) of D flip-flop 2661.When or door 2663 receive The first pulse signal or the second pulse signal or D flip-flop 2661 that pulse signal output end 2541 exports are in output end Q When the high level signal of output, the testing result latch signal that end 2561 exports high level is latched in testing result.Due to detection Pulse generating module 2640 only when detection-phase exports the first pulse signal or the second pulse signal, is dominated or door 2663 is defeated Go out high level testing result latch signal, and remaining time (including the operational phase after detection-phase) is by D flip-flop 2661 leading testing result latch signals are high level or low level.Therefore, when testing result end 2571 did not occurred high level Testing result signal when, D flip-flop 2661 maintains low level signal in output end Q, and testing result is made to latch end 2561 Low level testing result latch signal is also maintained in the operational phase.Conversely, when once there is excessively high electricity in testing result end 2571 When flat testing result signal, D flip-flop 2661 can latch and maintain high level signal in output end Q.In this way, testing result Latch the testing result latch signal that high level is also maintained when end 2561 enters the operational phase.

Figure 35 F are referred to, for according to the circuit diagram of the switching circuit of the utility model preferred embodiment.Switching circuit 2680 may include a transistor (transistor), such as a bipolar junction transistors 2681 as a power transistor (power transistor).Power transistor can handle high current and power, be particularly used in switching circuit.Two-carrier connects The collector of junction transistor 2681 couples the first sense terminal 2521, and the testing result that base stage couples latches end 2561, and emitter-base bandgap grading switchs coupling Connect end 2581.When detecting the first pulse signal of generation of pulse generating module 2640 or the second pulse signal, bipolar junction is brilliant Of short duration conducting is made detection decision circuit 2670 be detected by body pipe 2681, to determine testing result latch signal as high level Or low level.When testing result latch cicuit 2660 latches the testing result latch letter that end 2561 exports high level in testing result Number when, bipolar junction transistors 2681 make conducting to be connected between the first sense terminal 2521 and the second sense terminal 2522. When testing result latch cicuit 2660 latches end 2561 and exports low level testing result latch signal in testing result, double loads Sub- junction transistor 2681 makes cut-off between the first sense terminal 2521 and the second sense terminal 2522 to end.

Since external drive signal is AC signal, when being detected in order to avoid detection decision circuit 2670, external drive letter Number level just zero crossings cause detecting mistake.Therefore, detection pulse generating module 2640 generates the first pulse letter Number and the second pulse signal so that detection decision circuit 2670 detection twice, the electricity of external drive signal when being detected to avoid single It is flat just the zero crossings the problem of.Preferably, the generation time difference of the first pulse signal and the second pulse signal is not institute And the 180 degree phase difference of external drive signal described in non-corresponding the integer multiple of the period half of external drive signal is stated, i.e., Integer multiple.In this way, when one of the first pulse signal and the second pulse signal generate, if unfortunate external drive signal is zero Nearby, avoidable external drive signal is also in zero crossings when another generation for point.

The generation time of above-mentioned first pulse signal and the second pulse signal is poor, i.e., setting time interval can be with formula table Show as follows：

Setting time interval=(X+Y) (T/2)；

Wherein, T is the period of external drive signal, and X is integer more than or equal to zero, 0<Y<1.

Y is preferably ranging between 0.05-0.95, between more preferably 0.15-0.85.

Furthermore when entering detection-phase in order to avoid detecting module, the level of driving voltage VCC is too low to cause detecting mould The circuit logic misjudgment of block is begun to ramp up.The generation of the first pulse signal may be set in driving voltage VCC reach or It is generated when higher than a predetermined level, detection decision circuit 2670 just carries out after so that driving voltage VCC is reached enough level, to keep away Exempt from the circuit logic misjudgment of detecting module caused by level deficiency.

According to the above description, when one end lamp cap of LED straight lamps is inserted into lamp holder and other end lamp cap is suspension joint or electricity Property contact human body when, so that detection decision circuit is exported low level testing result signal because impedance is big.Testing result latches electricity Road low level detection is latched into low level testing result signal according to the pulse signal of detection pulse generating module As a result latch signal, and also maintain testing result when the operational phase.In this way, switching circuit can be made to maintain cut-off and avoid continuing It is powered.It is possible so also to can avoid human electric shock, so as to meet the requirement of safety.And when the both ends lamp of LED straight lamps When head is correctly inserted into lamp holder, make the detection of detection decision circuit output high level because the impedance of LED straight lamps circuit itself is small Consequential signal.Testing result latch cicuit is according to testing result signal of the pulse signal to high level for detecting pulse generating module The testing result latch signal of high level is latched into, and testing result is also maintained when the operational phase.In this way, switch can be made Circuit maintains conducting and is persistently powered, and makes the normal operating when operational phase of LED straight lamps.

In other words, in some embodiments, the lamp cap described in one end of the LED straight lamps is inserted into the lamp holder and another When lamp cap described in one end is suspension joint or human body in electrical contact, the testing result letter of the detection decision circuit input low level Number the testing result latch cicuit is arrived, then one low level signal of detection pulse generating module output is tied to the detection Fruit latch cicuit makes the testing result latch cicuit export low level testing result latch signal so that the switch is electric Road is ended, wherein the cut-off of the switching circuit makes to end between first sense terminal and the second sense terminal, even if also institute It states LED straight lamps and enters a not on-state.

And in some embodiments, when two lamp cap of the LED straight lamps is correctly inserted into the lamp holder, the inspection The testing result signal of decision circuit input high level is surveyed to the testing result latch cicuit, the testing result is made to lock A testing result latch signal of circuit output high level is deposited so that the switching circuit is connected, wherein the switching circuit is led It is logical to make to be connected between first sense terminal and the second sense terminal, even if also the LED straight lamps operate in a conducting state.

It is worth noting that, the pulsewidth for the pulse signal that detection pulse generating module generates in 10us between 1ms, make With only LED straight lamps be powered moment when, make switching circuit that the of short duration time be connected using this pulse signal.It can produce in this way A raw pulse current flows through detection decision circuit and is detected judgement.Because generation be the pulse of short time due to for a long time lead It is logical non-, Danger Electric shock risk can't be caused.Furthermore testing result latch cicuit also maintains testing result when the operational phase, no longer Change the testing result previously latched because circuit state changes, and avoids the problem that testing result variation and cause.And it detects Module (i.e. switching circuit, detection pulse generating module, testing result latch cicuit and detection decision circuit) is desirably integrated into It in chip, can be embedded into circuit in this way, the circuit cost and volume of detecting module can be saved.

For example, in Power Management Design, the sub-assembly of length circuit board has a long circuit board and a short circuit board, long circuit Plate and short circuit board are bonded each other to be fixed through gluing mode, and short circuit board is located at long circuit board adjacent peripheral edges.On short circuit board With power supply module, it is integrally formed power supply.

In power supply module design, the external drive signal can be low-frequency ac signal (such as：Alternating current is carried For), high frequency ac signal (such as：Electric ballast is provided) or direct current signal (such as：Battery provides or external driving Power supply), and LED straight lamps can be inputted with the driving framework of Double-End Source.In the driving framework of Double-End Source, can support only Using wherein one end to receive external drive signal in a manner of single ended power supply.

When direct current signal is as external drive signal, the power supply module of LED straight lamps can be omitted rectification circuit.

In the rectification circuit design of power supply module, the first rectification unit and the second rectification unit point in double rectification circuits Pin not with configuration in the both ends lamp cap of LED straight lamps couples.Double rectification units are suitable for the driving framework of Double-End Source.And And when configured with an at least rectification unit, it can be adapted for the driving of low-frequency ac signal, high frequency ac signal or direct current signal Environment.

Double rectification units can be double half-wave rectification circuit, double-full-bridge rectifier circuit or half-wave rectifying circuit and full-bridge rectification The combination of circuit each one.

Can be each single pin (totally two pins) of both-end, each double pins of both-end in the pin design of LED straight lamps The framework of (totally four pins).Under the framework of each single pin of both-end, 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 design of double rectification circuits, and uses each any pin of both-end Or any single-ended double pins receive external drive signal.

In the filter circuit design of power supply module, can have Single Capacitance or π type filter circuits, after filtering out rectification Radio-frequency component in signal, and the direct current signal for providing low ripple is filtered signal.Filter circuit can also include that LC is filtered Circuit, high impedance is presented to specific frequency, to meet size of current specification of the UL certifications to specific frequency.Furthermore filtered electrical Road more may include the filter unit being coupled between pin and rectification circuit, be done with reducing the electromagnetism caused by the circuit of LED light It disturbs.When direct current signal is as external drive signal, the power supply module of LED straight lamps can be omitted filter circuit.

In the LED drive module design of power supply module, only comprising LED module or LED module and driving can be included Circuit.Can also be in parallel with LED drive module by regulator circuit, to ensure the unlikely generation overvoltage of the voltage in LED drive module. Regulator circuit can be voltage clamping circuit, such as：Zener diode, bi-directional voltage stabilizing pipe etc..When rectification circuit includes condenser network, A capacitance can be connected two-by-two between in a pin of the pin and the other end respectively held for both-end, to be carried out with condenser network Partial pressure act on and as regulator circuit.

In the design only comprising LED module, when high frequency ac signal is as external drive signal, an at least rectified current Road include condenser network (that is, including more than one capacitance), in rectification circuit full-bridge or half-wave rectifying circuit connect, make Condenser network is equivalent to impedance as current regulating circuit and to adjust the electric current of LED module under high frequency ac signal.Thereby, When the high frequency ac signal of the provided different voltages of different electric ballasts, the electric current of LED module can be adjusted default It is unlikely in current range that there is a situation where overcurrents.Energy circuit is released furthermore it is possible to additionally increase, it is in parallel with LED module, in outside Drive signal stops after providing, and auxiliary carries out filter circuit to release energy, to reduce caused by filter circuit or other circuits Resonance causes the case where LED module flashing.In comprising LED module and driving circuit, driving circuit can be that direct current turns DC boosting conversion circuit, DC to DC decompression converting circuit or DC to DC lift voltage conversion circuit.Driving circuit system Stablizing the electric current of LED module in setting electric current value, can also be turned up according to the high or low of external drive signal to correspond to Or turn down setting electric current value.Furthermore it is possible to additionally increase mode selector switch between LED module and driving circuit, make electric current LED module is directly inputted by filter circuit or inputs LED module after overdrive circuit.

Furthermore it is possible to additionally increase protection circuit to protect LED module.Protection circuit can detect the electric current of LED module And/or voltage starts corresponding overcurrent or overvoltage protection to correspond to.

In the ballast circuit for detecting design of power supply module, ballast circuit for detecting is above connected with LED drive module with equivalent Capacitance it is in parallel, and capacitance is flowed through determining external drive signal according to the frequency of external drive signal or flows through ballast detecting electricity Road (bypasses capacitance).Above-mentioned capacitance can be the condenser network of rectification circuit.

Power supply module filament artificial circuit design in, can be single shunt capacitance and resistance or two-in-parallel capacitance and Resistance or negative temperature parameter circuit.Filament artificial circuit is suitable for program preheating start-up type electric ballast, can be to avoid program Preheating start-up type electric ballast judges the problem of filament exception, improves the compatibility to program preheating start-up type electric ballast Property.And filament artificial circuit has little influence on instantaneous starting type (Instant Start) electric ballast, quick-starting direct The compatibility of other electric ballasts such as (Rapid Start) electric ballast.

In the ballast compatible circuit design of power supply module, it can connect with rectification circuit or be driven with filter circuit and LED Dynamic wired in parallel.With the concatenated design of rectification circuit, the original state of ballast compatible circuit is cut-off, and is prolonged by setting It is connected after the slow time.In the design in parallel with filter circuit and LED drive module, the original state of ballast compatible circuit is to lead It is logical, and end after setting delay time.Ballast compatible circuit can make instantaneous starting type electric ballast in initial start stage It can smoothly start, and improve the compatibility to instantaneous starting type electric ballast.And ballast compatible circuit have little influence on it is pre- The compatibility of other electric ballasts such as thermal starting type electric ballast, quick-starting direct electric ballast.

In the auxiliary power module design of power supply module, energy-storage units can be battery or super capacitor, with LED module It is in parallel.Auxiliary power module is suitable for inclusion in the LED drive module design of driving circuit.

In the LED module design of power supply module, LED module can be comprising the multi-string LED component being connected in parallel to each other (that is, single The LED groups of one LED chip or multiple and different color LED chips composition) it goes here and there, the LED component in each LED component string can be each other It connects and forms netted connection.

That is, features described above can be made to arbitrary permutation and combination, and for the improvement of LED straight lamps.

As shown in figure 19, in one embodiment, lamp plate 2 and power supply 5 in previous embodiment is omitted in circuit board group component 25 Situation about being fixed with the mode of welding, but first fix long circuit board 251 and 253 gluing of short circuit board, then by power supply mould The line layer 2a electrical connections of group 250 and lamp plate 2.In addition, lamp plate 2 is not limited in one layer or double layer circuit plate as above-mentioned, it can Also include another sandwich circuit layer 2c as shown in figure 23 to be.Light source 202 is set to line layer 2a, passes through 5 electricity of line layer 2a and power supply Gas is connected to.As shown in figure 20, in another embodiment, circuit board group component 25 has a long circuit board 251 and a short circuit board 253, long circuit board 251 can be the bendable circuit soft board or flexible base board of above-mentioned lamp plate 2, and lamp plate 2 includes a line layer 2a It is first that dielectric layer 2b and short circuit board 253 is affixed with connecting method with a dielectric layer 2b, and then line layer 2a is attached to On dielectric layer 2b and extend on short circuit board 253.The above various embodiments, all without departing from the utility model circuit board group component 25 Application range.

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

In addition, in the foregoing embodiments, when lamp plate 2 and 5 system of power supply are fixed through welding manner, the end of lamp plate 2 It is not secured on the inner peripheral surface of fluorescent tube 1, fixation that can not be safe supports power supply 5, in other embodiments, if power supply 5 must It must separately be fixed in the lamp cap of 1 end region of fluorescent tube, then lamp cap can be relatively long and has compressed 1 effective light-emitting area of fluorescent tube.

2 are please referred to Fig.2, in one embodiment, used lamp plate is the rigid circuit board 22 of aluminum, because its end can be opposite The end region for being fixed on fluorescent tube 1, and power supply 5 by the way of rigid circuit board 22 then using being weldingly fixed on rigid circuit Above 22 end of plate, one is convenient for the implementation of welding procedure, and two, which carry out lamp cap 3, need not have the total length for being enough to carry power supply 5 Space and length can be shortened, can so increase the effective light-emitting area of fluorescent tube.In addition, in the foregoing embodiments, power supply 5 On other than being installed with power supply module, it is also necessary to separately the conductive pin 301 of welding metal conducting wire and lamp cap 3, which is formed, electrically connects It connects.In the present embodiment, it can be used directly on power supply 5, electrically connect as the conductive pin 53 and lamp cap 3 of power supply module It connects, is not required to additionally weld other conducting wires again, is more advantageous to the simplification of processing procedure.

In one embodiment of the utility model, the length dimension of the second side lamp cap 3 is short compared with 3 length of the first side lamp head.One As, the length dimension of the second side lamp cap 3 is the 30%~80% of the length dimension of the first side lamp head 3.More preferably the second side lamp First 3 length dimension is the 2/3 of the length dimension of the first side lamp head 3.In this embodiment, the length dimension of the second side lamp cap 3 is big Cause the half of the size for the first side lamp head 3.The size of first side lamp head 3 between 15mm~65mm (specifically regarding application scenario and It is fixed).

It is worth noting that, the thickness of the second conductive layer of the flexible circuit board with bilayer conductive layer is preferably compared It is thick in the thickness of the first conductive layer, it can thereby reduce the line loss (pressure drop) on positive wire and negative wire.Furthermore have The flexible circuit board of bilayer conductive layer compared to single conductive layer flexible circuit board, due to by the positive wire at both ends, Negative wire moves to the second layer, can reduce the width of flexible circuit board.On identical jig, the discharge of relatively narrow substrate Quantity is more than wider substrate, therefore can improve the production efficiency of LED module.And the bendable electricity with bilayer conductive layer Road plate relatively on be relatively easy to maintain shape, with increase production reliability, such as：The welding position when welding of LED component Accuracy.

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 building brick of group is arranged on lamp plate：Utilize PEC (printed electronic circuit, PEC：Printed Electronic Circuits), technology at least partly electronic building brick will be printed or be embedded on lamp plate.

In one embodiment of the utility model, the electronic building brick of power supply module is provided entirely on lamp plate.It makes Process is as follows：Substrate preparation (flexible printed circuit preparation) → spray printing metal nano ink → spray printing passive block/active Device (power supply module) → drying/sintering → spray printing interlayer connection convex block → spray insulation ink → spray printing metal nano ink → Spray printing passive block and active device (and so on form included multi-layer board) → sprayed surface welded disc → spraying welding resistance LED component is welded in agent.

It, only need to be in lamp plate if the electronic building brick of power supply module is provided entirely on lamp plate in above-mentioned the present embodiment Both ends pass through welding lead connect LED straight lamps pin, realize pin and lamp plate electrical connection.Thus without being again Substrate is arranged in power supply module, and then can further optimize the design of lamp cap.Preferably, power supply module is arranged the two of lamp plate End reduces influence of the heat of its work generation to LED component to the greatest extent in this way.The present embodiment is welded because reducing, and improves power supply module Whole reliability.

If part electronic building brick is printed on lamp plate (such as resistance, capacitance), and such as by big device：Inductance, electrolysis The electronic building bricks such as capacitance are arranged in lamp cap.The manufacturing process of lamp plate is same as above.In this way by part electronic building brick being arranged in lamp It is rational to be laid out power supply module on plate, to optimize the design of lamp cap.

Figure 19 and Figure 20, short circuit board 253 is coordinated to be distinguished into the first short circuit board being connect with 251 both ends of long circuit board And the second short circuit board, and the first short circuit of short circuit board 253 that the electronic building brick in power supply module is respectively set at On plate and the second short circuit board.The length dimension of first short circuit board and the second short circuit board can be with rough consistent, can not also Unanimously.Generally, the first short circuit board (left side electricity of the right-hand circuit board of the short circuit boards of Figure 19 253 and the short circuit board 253 of Figure 20 Road plate) length dimension be the second short circuit board length dimension 30%~80%.The length of more preferably first short circuit board Size is the 1/3~2/3 of the length dimension of the second short circuit board.In this embodiment, the length dimension of the first short circuit board is substantially For the half of the size of the second short circuit board.The size of second short circuit board between 15mm~65mm (specifically regarding application scenario and It is fixed).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 to be set to LED straight In the lamp cap of the opposite other end of spot.

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, " lamp plate uses bendable circuit soft board ", " power supply has length circuit In the features such as the sub-assembly of plate ", one or more of technical characteristics can be only included.

In addition, wherein about the content system of " lamp plate use bendable circuit soft board ", to can be selected from include its in embodiment One of the relevant technologies feature or combinations thereof.

For example, in lamp plate is using bendable circuit soft board, the output end of the bendable circuit soft board and the power supply Between by conducting wire routing connect or the bendable circuit soft board and the output end of the power supply between weld.In addition, described Bendable circuit soft board includes the storehouse of a dielectric layer and a line layer；Bendable circuit soft 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, in Power Management Design, the sub-assembly of length circuit board has a long circuit board and a short circuit board, long circuit Plate and short circuit board are bonded each other to be fixed through gluing mode, and short circuit board is located at long circuit board adjacent peripheral edges.On short circuit board With power supply module, it is integrally formed power supply.

In the driving framework of Double-End Source, can support that wherein one end is used only in a manner of as single ended power supply to receive External drive signal.

When direct current signal is as external drive signal, the power supply module of LED straight lamps can be omitted rectification circuit.

Can be that there is single rectification unit or double rectification units in the rectification circuit design of power supply module.Double rectifications The pin of the first rectification unit and the second rectification unit respectively with configuration in the both ends lamp cap of LED straight lamps in circuit couples. Single rectification unit is applicable to the driving framework of single ended power supply, and double rectification units are suitable for single ended power supply and Double-End Source Drive framework.And when configured with an at least rectification unit, it can be adapted for low-frequency ac signal, high frequency ac signal or straight Flow the drive environment of signal.

Can be each single pin (totally two pins) of both-end, each double pins of both-end in the pin design of LED straight lamps The framework of (totally four pins).Under the framework of each single pin of both-end, 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 design of double rectification circuits, and uses each any pin of both-end Or any single-ended double pins receive external drive signal.

Furthermore it is possible to additionally increase protection circuit to protect LED module.Protection circuit can detect the electric current of LED module And/or voltage starts corresponding overcurrent or overvoltage protection to correspond to.

In the auxiliary power module design of power supply module, energy-storage units can be battery or super capacitor, with LED module It is in parallel.Auxiliary power module is suitable for inclusion in the LED drive module design of driving circuit.

In the LED module design of power supply module, LED module can be comprising the multi-string LED component being connected in parallel to each other (that is, single The LED groups of one LED chip or multiple and different color LED chips composition) it goes here and there, the LED component in each LED component string can be each other It connects and forms netted connection.

That is, features described above can be made to arbitrary permutation and combination, and for the improvement of LED straight lamps.

Claims (16)

1. a kind of LED straight lamps, are adapted to be mounted in lamp holder and use, it is characterised in that including：

Fluorescent tube；

Two lamp caps are respectively provided with an at least pin, and the both ends suitable for being respectively coupled to the fluorescent tube, the pin of two lamp cap To the external communication drive signal that receives frequency is 50 or 60Hz；

LED module is arranged in the fluorescent tube；

Power supply module, to provide DC driven signal to the LED module, to enable according to the external communication drive signal It states LED module to receive the DC driven signal and shine, wherein the power supply module includes：

Rectification circuit couples the pin of two lamp cap, to carry out rectification to the external communication drive signal, with production Raw rectified signal；

Filter circuit is coupled with the rectification circuit, to be filtered to the rectified signal, to believe after generation filtering Number；

Driving circuit is coupled with the filter circuit, and is configured to receive the filtered signal and is generated the direct current Drive signal；And

There is detecting module the first sense terminal and the second sense terminal, first sense terminal to couple the rectification circuit, and institute It states the second sense terminal and couples the filter circuit；

Wherein, the detecting module makes first sense terminal and the of short duration conducting of the second sense terminal in detection-phase, with Pulse current is generated when the LED straight lamps are powered；The detecting module is detected judgement according to the pulse current, by To determine to make first sense terminal and second sense terminal to maintain conducting after entering the operational phase or maintain cut-off.

2. LED straight lamps according to claim 1, which is characterized in that described in one end lamp cap of the LED straight lamps Pin be inserted into the lamp holder and other end lamp cap pin human body in electrical contact or LED straight lamps both-end lamp cap it is equal When being inserted into the lamp holder, the LED straight lamps are powered.

3. LED straight lamps according to claim 1, which is characterized in that the time of the of short duration conducting be 10us-1ms it Between.

4. LED straight lamps according to claim 1, which is characterized in that the lamp plate being set in fluorescent tube is further included, it is described LED module is arranged on the lamp plate, and is electrically connected through the lamp plate and the power supply module.

5. LED straight lamps according to claim 4, which is characterized in that the lamp plate is FR4 plates.

6. LED straight lamps according to claim 4, which is characterized in that one end of the power supply module has male plug, and The end of the lamp plate is equipped with female plug, wherein the male plug and the female plug are for the power supply module to be electrically connected with the lamp plate It connects.

7. LED straight lamps according to claim 4, which is characterized in that at least partly electronic building brick of the power supply module It is arranged on the lamp plate.

8. LED straight lamps according to claim 7, which is characterized in that the electronic building brick being arranged on the lamp plate For capacitance.

9. LED straight lamps according to claim 1, which is characterized in that further include the circuit equipped with the power supply module Board group component, the circuit board group component has long circuit board and short circuit board, and the short circuit board is set to the lamp In head.

10. LED straight lamps according to claim 9, which is characterized in that the short circuit board include the first short circuit board and Second short circuit board, wherein the first short circuit board is set to one of described two lamp cap, and the second short circuit It is wherein another that plate is set to two lamp cap.

11. LED straight lamps according to claim 10, which is characterized in that the length dimension of the second short circuit board is situated between In 15mm-65mm, and the 30% of the length dimension that the length dimension of the first short circuit board is the described second short circuit board ~80%.

12. LED straight lamps according to claim 10, which is characterized in that the rectification circuit, the filter circuit and institute It states the inductance of driving circuit and controller is set to the described second short circuit board.

13. LED straight lamps according to claim 1, which is characterized in that include for installing power supply mould in the lamp cap The power supply slot of group.

14. LED straight lamps according to claim 1, one of described two lamp cap has the first pin and the second pin, And two lamp cap is wherein another to have third pin and the 4th pin, which is characterized in that the rectification circuit includes the One rectification circuit and the second rectification circuit, wherein the input terminal of first rectification circuit couples first pin and described the Two pins, the input terminal of second rectification circuit couple the third pin and the 4th pin, and described first with Second rectification circuit couples the filter circuit via the first rectification output end and the second rectification output end jointly.

15. LED straight lamps according to claim 14, which is characterized in that first rectification circuit includes：

First rectifier diode, anode couple second rectification output end, and cathode couples second pin；

Second rectifier diode, anode couple second rectification output end, and cathode couples first pin；

Third rectifier diode, anode couple second pin, and cathode couples first rectification output end；And

4th rectifier diode, anode couple first pin, and cathode couples first rectification output end.

16. LED straight lamps according to claim 14, which is characterized in that second rectification circuit includes：

First rectifier diode, anode couple second rectification output end, and cathode couples half-wave tie point；And

Second rectifier diode, anode couple the half-wave tie point, and cathode couples first rectification output end,

The wherein described half-wave tie point couples the third and the 4th pin.