CN206582584U

CN206582584U - Led daylight lamp

Info

Publication number: CN206582584U
Application number: CN201720055129.1U
Authority: CN
Inventors: 熊爱明; 刘新通; 吴晓佳
Original assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Current assignee: Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date: 2015-08-08
Filing date: 2016-07-21
Publication date: 2017-10-24
Anticipated expiration: 2026-07-21

Abstract

A kind of LED daylight lamp of disclosure, including：Rectification unit, the pin of itself and the LED daylight lamp end is electrically connected with, the AC signal rectification for the ballast output that the pin is received；The LED module coupled with the rectification unit, it includes at least one LED component；The control circuit coupled with the rectification unit, the LED module；The control circuit includes control module, sampling unit and chip power supply branch road；The chip power supply branch road couples the rectification unit and the control module to power to the control module；The sampling unit couples the rectification unit and the control module to provide sampled signal to the control module, and the control module controls the LED module to light according to the sampled signal.

Description

LED daylight lamp

The application is Application No. " 201620781752.0 ", and the applying date is " on July 21st, 2016 ", utility model title For the divisional application of " LED daylight lamp ".

Technical field

The application is related to field of lighting appliances, more particularly to a kind of LED daylight lamp.

Background technology

Because conventional fluorescent fluorescent tube has applied decades, every country and manufacturer have been developed that various principles, rule During the ballast of lattice, therefore LED daylight lamp replacement conventional fluorescent, it is necessary to solve LED daylight lamp to electronic ballast The compatibling problem of device and Inductive ballast.

There are many problems on compatible with electric ballast and Inductive ballast in the LED daylight lamp used at present, On Inductive ballast can normal work, but be possible on electric ballast to cause the flicker of LED daylight lamp fluorescent tube, it is dimmed, very To burning, it is necessary to develop different LED daylight lamp fluorescent tube power supplys for different ballast, thus substantially increase It is difficult while compatible electronic type ballast and inductive type that LED daylight lamp, which substitutes the cost of conventional fluorescent (T8), i.e. LED daylight lamp, Ballast influences the popularization and application of LED daylight lamp.

With reaching its maturity for LED technology, LED daylight lamp (Light-Emitting Diode, LED) have high brightness, The advantages of power saving and environmental protection, is widely received.LED daylight lamp is also little by little applied in various lighting device.To most of For user, its do not know existing ballast why type.Great puzzlement is brought during purchase LED daylight lamp.

Therefore, in the urgent need to the compatible electric ballast of LED daylight lamp and Inductive ballast, to meet the demand of user, Simultaneously because design LED daylight lamp compatible electronic ballast or Inductive ballast need not be separated so that the platform of design is unified Change, save substantial amounts of design resource, improve exploitation reply efficiency.

The electric ballast of current market is generally divided into 2 classes：

One is that (T-LED lamp are DR (Direct Replacement) type lamp to the compatible type light-emitting diode lamp tube of ballast Pipe), on the basis of the circuit of original lighting device is not changed, traditional fluorescent lamp is directly replaced with light-emitting diode lamp tube Pipe.

Another is to save on ballast bypass type (Ballast by-pass are BP types fluorescent tube) light-emitting diode lamp tube, circuit Traditional ballast, and civil power is directly connected to light-emitting diode lamp tube.The latter is applied to newly-decorated environment, using new photograph The drive circuit and light-emitting diode lamp tube of bright device.

Easily there is problems with the compatible type light-emitting diode lamp tube of ballast or ballast bypass type light-emitting diode lamp tube：

The matching degree bottom of current LED daylight lamps most on the market and electric ballast.Electronic ballast common at present Device is mainly divided into instantaneous starting type (Instant Start) electric ballast, preheating start-up type (Program Start) electronics Two kinds of ballast.Electric ballast has resonance circuit, and it drives design to be matched with the load characteristic of fluorescent lamp, i.e., fluorescent lamp exists It is capacitive component before lighting, and is that impedance is in non-linear after lighting；Most LED daylight lamps are configured without control module, It can not so be acted according to the signal of the ballast output of actual connection.So as to add LED daylight lamp and ballast Difficulty of matching.The service life of LED daylight lamp can also be influenceed.

Utility model content

In view of the deficiencies in the prior art, the purpose of the application is to provide a kind of LED daylight lamp, with improve LED daylight lamp with The matching degree of ballast.

To reach above-mentioned purpose, the application provides a kind of LED daylight lamp, including：

Rectification unit, the pin of itself and the LED daylight lamp end is electrically connected with, and the ballast that the pin is received is defeated The AC signal rectification gone out；

The LED module coupled with the rectification unit, it includes at least one LED component；

The control circuit coupled with the rectification unit, the LED module；

The control circuit includes control module, sampling unit and chip power supply branch road；

The chip power supply branch road couples the rectification unit and the control module to power to the control module；

The sampling unit couples the rectification unit and the control module to provide sampling letter to the control module Number,

The control module controls the LED module to light according to the sampled signal.

It is preferred that, the two ends of the sampling unit are respectively coupled to the output end of the rectification unit；The control module bag Include IC modules and MOS switch；The MOS switch couples the IC modules and LED module；Sampled described in the IC module couples Unit and chip power supply branch road；

The sampling unit includes the first resistor (1592) and second resistance (1593) of series connection；

The chip power supply end (VCC ends) of the IC modules couples the chip power supply branch road；

The voltage detecting ends (OVP ends) of the IC modules connect the tie point of the first resistor and the second resistance with Sample voltage value；

IC modules control MOS switch conducting when the magnitude of voltage is located at predetermined interval, so that the LED module It is luminous.

It is preferred that, the Standard resistance range of the first resistor is 200K ohm to 500K ohm；The resistance of the second resistance Scope is 0.5K ohm to 4K ohm.

It is preferred that, the predetermined interval is 0.7 volt to 1.25 volts.

It is preferred that, the sampling unit can gather the power frequency of the rectification unit output, and the control module exists Control MOS switch conducting when the frequency values reach frequency threshold, so that the LED module is luminous.

It is preferred that, the control module is the IC modules of built-in MOS switch, and the IC modules should according to sampled signal control LED fluorescent lamps are operated in constant current mode or current adjustment section pattern.

It is preferred that, the IC modules include：Chip power supply end, earth terminal, the whole triggering end of current adjustment (CS ends) and MOSFET drain electrode ends built in two (DRN ends), constant current mode triggering end (STP ends)；The chip power supply end and the chip power supply Branch road is coupled, and MOSFET drain electrode ends built in described two are coupled with the LED module；

The sampling unit includes the 3rd resistor (2592) and the 4th resistance (2593) of series connection, and the 5th electricity connected Hinder (2594) and the 6th resistance (2595)；

The constant current mode triggering end couples the tie point of the 3rd resistor (2592) and the 4th resistance (2593), to adopt The first voltage value of the tie point of 3rd resistor described in sample (2592) and the 4th resistance (2593)；

The tie point of 5th resistance (2594) and the 6th resistance (2595) is electrically connected with institute through the 7th resistance (2596) The whole triggering end of current adjustment is stated, the first electric capacity is provided between the whole triggering end of current adjustment and the output end of the rectification unit (2597)；The whole triggering end of the current adjustment sample the 5th resistance (2594) and the 6th resistance (2595) tie point the Two magnitudes of voltage；

The IC modules control the LED module in constant current mode when the first voltage value is located at the first predetermined interval Lower work, LED module work under current adjustment section pattern is controlled when the second voltage value is located at the second predetermined interval Make.

It is preferred that, when the LED module works under constant current mode, the built-in MOS switch maintains conducting；

When the LED module works under current adjustment section pattern, the built-in MOS switch by the 7th resistance, MOS switch is realized in the periodicity discharge and recharge of first electric capacity.

It is preferred that, the Standard resistance range of the 3rd resistor is 200K ohm to 500K ohm；The resistance of 4th resistance Scope is 0.5K ohm to 4K ohm；The Standard resistance range of 5th resistance is 200K ohm to 500K ohm；6th electricity The Standard resistance range of resistance is 0.5K ohm to 4K ohm.

It is preferred that, first predetermined interval is more than or equal to 1 volt；

Second predetermined interval is more than 0.5 volt and less than 1.0 volts.

It is preferred that, it is additionally provided between the tie point and ground connection of MOSFET drain electrode ends and the LED module built in described two One bilateral diode or discharge tube.

It is preferred that, some value of the voltage threshold of the bilateral diode or discharge tube in 300~600V.

It is preferred that, the 4th resistance (2593) one second electric capacity in parallel；The capacitance scope of second electric capacity is 100nF To 500nF.

It is preferred that, the voltage at the chip power supply end is 10 volts to 30 volts.

It is preferred that, the chip power supply branch road includes the 8th resistance and the 3rd electric capacity of series connection；8th resistance and institute The tie point for stating the 3rd electric capacity couples the control module.

It is preferred that, the rectification unit and the control circuit are located in the lamp holder of the LED daylight lamp；The LED moulds Block is located on the lamp plate of the LED daylight lamp.

It is preferred that, a triode (3592) in parallel on the MOS switch (3591), the triode (3592) is flowing through Shunted when the electric current of MOS switch (3591) is beyond the threshold value of setting.

It is preferred that, base stage and the transmitting interpolar of the triode (3592) are provided with the 9th resistance (3593)；The LED element The electric current of outflow is through the MOS switch (3591), the 9th resistance (3593) formation loop；When the electric current flows through the 9th resistance (3593) pressure drop formed reaches the conducting voltage of the triode (3592), triode (3592) conducting, so that portion The electric current for dividing electric current to be flowed out after the triode (3592) with the 9th resistance (3593) forms loop after collaborating.

To reach above-mentioned purpose, the application also provides a kind of LED daylight lamp, including：

The control circuit coupled with the rectification unit, the LED module；

The control circuit includes IC modules, sampling unit and chip power supply branch road；

The IC modules include：Chip power supply end, earth terminal, the whole triggering end of current adjustment (CS ends) and built in two MOSFET drain electrode ends (DRN ends), constant current mode triggering end (STP ends)；The chip power supply end and the chip power supply branch road coupling Connect, MOSFET drain electrode ends built in described two are coupled with the LED module；

By above technical scheme, LED daylight lamp provided herein is provided with control circuit, by controlling in circuit Control module and sampling unit, make control module control the luminous of LED module according to sampled signal, so that preferably adaptation With existing electrical ballast and inductor wire ballast.

The LED daylight lamp of the application has preferably compatible type, can preferably compatible instantaneous (IS types) actuated type electronics town Flow device and preheating (PS types) actuated type electric ballast.

The application embodiment also solves some IS types electric ballasts in addition, and in low-voltage, (such as voltage is less than 150V When) there is the phenomenon that can not be successfully started up.Using the effect of Delayed conducting, allow starting electric energy do not waste be stored in electric capacity On, discharged again when needed, the energy can be allowed to use optimization.

The application is judged the LED days by the improvement of the topological structure to LED daylight lamp by controlling the sampling of circuit Light lamp is operated in constant current mode or current adjustment section pattern, increases the service life of LED daylight lamp.The application passed through to LED days The improvement of the topological structure of light lamp, the design of optimization lamp holder interior power module and lamp plate improves rational layout and improves LED daylight The service life of lamp.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those skilled in the art, without having to pay creative labor, Other accompanying drawings can also be obtained according to these accompanying drawings.

Fig. 1 is the utility model embodiment LED daylight lamp stereogram；

Fig. 2 is the utility model embodiment LED daylight lamp three-dimensional exploded view；

Several circuit diagrams of the LED daylight lamp of Fig. 3 a- Fig. 3 i embodiments of the present utility model；

Fig. 4 a, Fig. 4 b are several deformations in Fig. 3；

Fig. 5 a, Fig. 5 b are the deformation of simulation heater chain.

Embodiment

Inventor of the present utility model passes through creative work, on the basis of glass lamp, it is proposed that a kind of LED daylight Lamp (LED daylight lamp can also be expressed as lighting source, or lighting device in this programme), LED element can also be expressed as light source or LED Crystal grain；The problem of to solve to mention in background technology and above mentioned problem.

A kind of LED daylight lamp of the utility model embodiment offer, reference picture 1-2, including：Fluorescent tube 1, in fluorescent tube 1 Lamp plate 2, and two lamp holders 3 at the two ends of fluorescent tube 1 are socketed on respectively.Wherein fluorescent tube 1 can be the peripheral framework of elongate, use Plastics fluorescent tube or glass lamp, the present embodiment is using the glass lamp for having strengthening section, to avoid traditional glass fluorescent tube easily rupturable And the electric shock accidents that triggers by electric leakage of rupture, and the problem of the easy aging of plastic lantern tube capacity.

The mode of fluorescent tube reinforcing can use chemical mode or physics mode to do secondary operation reinforcing to glass.Chemistry side The general principle of formula is to improve the intensity of glass with the composition of glass surface is changed, and its method is first to use other alkali metal ions Exchanged with the Na ions or K ions of surface layer of glass, surface is formed ion exchange layer.After normal temperature is cooled to, at glass The state being pressurized in internal layer tension, outer layer, so as to reach the purpose of increase intensity.Chemical mode include but is not limited to high temperature modification from Sub- exchange process, low form ion-exchange, dealkalize method, surface crystallization method, sodium metasilicate reinforcement etc..

Physics mode is done to glass to be strengthened, and can be included but is not limited to, and uses the mode or the knot of change article of coating Structure.Matrix that coating is sprayed as needed determines the species and state of coating, can be ceramic tile strengthened coat, acrylic coating or It is glass coating etc., can is liquid or gaseous state coating in coating.Change the structure of article, for example, done in easily rupturable part Structural strengthening design.Whether chemical mode or physics mode are not limited to single mode and implemented above, can mix physics In mode or any of chemical mode does any matched combined.

The present embodiment is explained with structure-reinforced design, and fluorescent tube 1 includes main body 102 and respectively positioned at the two ends of main body 102 End 101, lamp holder 3 is sheathed on outside end 101.Wherein, the external diameter of at least one end 101 is less than the external diameter of main body 102.This In embodiment, the external diameter of two ends 101 is set to be respectively less than the external diameter of main body 102.Specifically, the two ends of fluorescent tube 1 pass through reinforcing Portion is handled, and end 101 forms strengthening section structure, and lamp holder 3 is enclosed on the end 101 after reinforcing, can so caused outside lamp holder 3 Footpath and the difference of the external diameter of lamp tube main body 102 diminish, or even completely equal, i.e., the external diameter of lamp holder 3 is equal with the external diameter of main body 102.So Setting is advantageous in that, in transportation, and packaging support will not only contact lamp holder 3, and it can contact the He of lamp holder 3 simultaneously Fluorescent tube 1 so that whole branch lighting source uniform force, without causing lamp holder 3 to turn into unique stress point, it is to avoid lamp holder 3 and fluorescent tube The position that end 101 is connected is concentrated due to stress to be ruptured, and improves the quality of product, and have effect attractive in appearance concurrently.

In the present embodiment, the external diameter of lamp holder 3 and the external diameter of main body 102 are of substantially equal, tolerance be in the positive and negative 0.2mm (millimeter), No more than positive and negative 1mm.

In order to reach the external diameter of lamp holder 3 and the of substantially equal purpose of the external diameter of main body 102, according to the thickness of different lamp holders 3, by force End 101 and the difference range of the external diameter of main body 102 after change can be 1mm~10mm；Or it is furthermore preferred that reinforcing after end 101 can be relaxed to 2mm~7mm with the difference range of the external diameter of main body 102.

In the present embodiment, seamlessly transitted between the end 101 of fluorescent tube 1 and main body 102, form a transition part, transition part It is in arc shaped in the section of cambered surface, i.e. transition part vertically.

The length of transition part is 1mm~4mm, if less than 1mm, then transition part insufficient strength；If greater than 4mm, then The length of main body 102 can be reduced, reduce light-emitting area, while needing the length of lamp holder 3 accordingly increases to coordinate with main body 102, make Into the material increase of lamp holder 3.In other embodiments, then transition part can not also be arc.

Lamp holder 3 and fluorescent tube 1 are connected for convenience, and the scheme of the present embodiment improves for the structure of lamp holder 3.

Lamp holder 3 be sheathed on fluorescent tube 1 it is outer when, lamp holder 3 is sheathed on outside end 101, and extends to transition part, with transition part part It is overlapping.

Lamp holder 3 is in addition to hollow conductive pin 301, in addition to insulation tube, and is fixedly arranged on leading on insulation tube outer peripheral face Hot portion, wherein hollow conductive pin 301 is on insulation tube.Insulation tube is stretched out towards one end of fluorescent tube, heat conduction in one end of heat-conducting part The extension (part for stretching out insulation tube) in portion is bonded between fluorescent tube 1 by PUR 6.In the present embodiment, lamp holder 3 passes through Heat-conducting part extends to transition part, and one end of insulation tube towards fluorescent tube 1 does not extend to transition part, i.e. insulation tube towards one end of fluorescent tube There is interval between transition part.

In the present embodiment, insulation tube is insulation in general state, is not limited using material as plastics, ceramics etc. Material.

PUR 6 (being commonly called as the material for welding powder) composition is preferably：Phenolic resin 2127#, shellac, rosin, side Solve stone flour, zinc oxide, ethanol etc..This PUR 6 can change its physical state and occur significantly under conditions of high-temperature heating Expansion, reaches the effect of solidification, adds the stickiness of material itself, so as to so that lamp holder 3 is in close contact with fluorescent tube 1, be easy to LED Fluorescent lamp realizes automated production.In the present embodiment, PUR 6 can be presented after high-temperature heating to be expanded and flows, then cold But the effect of solidification can be reached, certainly, the selection of the utility model PUR composition is not limited to this, also can select high temperature It is heated to the composition solidified after predetermined temperature.Because the utility model PUR 6 will not be due to the first device of the heating such as power supply module Part generates heat to forming hot environment and cause reliability decrease, can prevent fluorescent tube 1 and lamp holder 3 during LED daylight lamp use Adhesive property is reduced, and improves long-term reliability.

Specifically, PUR 6 is filled between the outer peripheral face of the inner surface of heat-conducting part extension and fluorescent tube 1.In other words, The position that PUR 6 is filled passes through by the virtual plane axially vertical with fluorescent tube 1, and sequential is heat-conducting part, the and of PUR 6 Between the outer peripheral face of fluorescent tube 1.The coating thickness of PUR 6 can be 0.2mm~0.5mm, and PUR 6 can expand solidify afterwards, so that Contacted with fluorescent tube 1 and lamp holder 3 is fixed on fluorescent tube 1.And due to there is height between the outer peripheral face of both end 101 and main body 102 Degree is poor, therefore PUR can be avoided to spill on the part of main body 102 of fluorescent tube, removes follow-up manual wipping process from, improves The yields of production.

When bonding, heat-conducting part is conducted heat to by external heat equipment, then conducts again to PUR 6, make hot melt Glue 6 expands solidify afterwards, so that lamp holder 3 is fixedly bonded on fluorescent tube 1.

In the present embodiment, the external diameter that insulation tube includes the first pipe a for connecting vertically and the second pipe b, the second pipe b is less than the One pipe a external diameter, the external diameter difference range of two pipes is 0.15mm~0.3mm.Heat-conducting part is located on the second pipe b outer peripheral face, The outer surface of heat-conducting part is concordant with the first pipe a outer peripheral face so that the outer surface flat smooth of lamp holder 3, it is ensured that whole illumination light Source uniform force in packaging, transportation.Wherein, the axial length of length and insulation tube of the heat-conducting part along lamp holder axial direction Than for 1:2.5~1:5, i.e. heat-conducting part length：The length of tube that insulate is 1:2.5~1:5.

In the present embodiment, the outer surface of the inner surface and end 101 of the second pipe b and heat-conducting part and the appearance of transition part Face forms an accommodation space.In order to ensure the fastness of bonding, the present embodiment sets the second pipe b to be at least partly sheathed on fluorescent tube 1 Outside, PUR 6, which has, is partially filled between the second overlapped pipe b and fluorescent tube 1, is bonded between the two also by PUR 6, I.e. part holt melt glue 6 is located between the second pipe b inner surface and the outer surface of end 101, and in other words, PUR 6 is filled in institute The position for stating accommodation space passes through by a virtual plane axially vertical with fluorescent tube, sequential be heat-conducting part, the second pipe b, PUR 6 and end 101.Spy gives explanation, in the present embodiment, and PUR 6 simultaneously need not be fully filled with above-mentioned house Space.

Wherein, the end 101 of fluorescent tube 1 is inserted in after lamp holder 3, and the axial direction of insertion lamp holder 3 part of end 101 of fluorescent tube 1 is long Degree is accounted between 2nd/1 to three/3rds of heat-conducting part axial length, and such benefit is：On the one hand, it is ensured that hollow conductive pin 301 have enough creep age distances with heat-conducting part, and short circuit is difficult both during energization to be made one to get an electric shock and trigger dangerous；On the other hand, Due to the insulating effect of insulation tube so that the creep age distance between hollow conductive pin 301 and heat-conducting part is increased, during by high voltage Make one more difficult and trigger danger because of electric shock.

In other embodiments, lamp holder 3 is also designed to all-metal, now needs the bottom increasing in hollow conductive pin If an insulator, make to be electrically insulated between lamp holder 3 and hollow conductive pin, to reach high pressure resistant effect, it is to avoid user touches Electric shock problem during lamp holder 3.

In other embodiments, lamp holder 3 is also designed to plastics and metal (metal part connection conductive pin) hybrid junction Structure, now need to set up an insulator in the bottom of hollow conductive pin, make electrically exhausted between lamp holder 3 and hollow conductive pin Edge, to reach high pressure resistant effect, it is to avoid user touches electric shock problem during lamp holder 3.

In other embodiments, magnetic conductive metal part has an at least emptying aperture structure, and emptying aperture structure is shaped as circle, but not Be limited to circle, can for example, oval, square, star etc., as long as the inner peripheral surface of magnetic conductive metal part and insulation tube can be reduced Contact area, but can reach that heat cure heats the function of 6 glue.It is preferred that emptying aperture structural area accounts for magnetic conductive metal part face Long-pending 10%~50%.The arrangement of emptying aperture structure can in it is circumferentially equidistant from be spaced or it is non-equally spaced arrangement etc..

In other embodiments, magnetic conductive metal part has a scoring structure towards the surface of the insulation tube, wherein to lead The view of magnetic metalwork radially, scoring structure can be the knot from the inner surface exterior surface relief of magnetic conductive metal part Structure, but it is also possible to be the structure from the outer surface inner surface relief of magnetic conductive metal part, its purpose is in magnetic conductive metal face 9 Outer surface form raised or sunken, to reach that reduction makes the contact surface of the outer surface of magnetic conductive metal part and the inner peripheral surface of insulation tube Long-pending purpose.But it should be noted that and should be guaranteed that magnetic conductive metal part and fluorescent tube stable adhesion simultaneously, reach heat cure PUR 6 function.

In the present embodiment, magnetic conductive metal part is a circular ring.In other embodiments, magnetic conductive metal part is a non-positive round Shape ring, such as, but not limited to vesica piscis, when fluorescent tube 1 and lamp holder 3 is ellipses, the short axle of vesica piscis is slightly larger than fluorescent tube end Portion's external diameter, to reduce the contact area of the outer surface of magnetic conductive metal part and the inner peripheral surface of insulation tube, but can reach heat cure heat The function of melten gel 6.In other words, there is supporting part, the magnetic conductive metal part of anon-normal circular rings is located at support on the inner peripheral surface of insulation tube In portion, it therefore, it can make the contact area of the inner peripheral surface of magnetic conductive metal part and insulation tube to reduce, and solidifying hot-melt adhesive can be reached again 6 function.

With continued reference to Fig. 2, the LED daylight lamp of the present embodiment also includes bonding agent 4, lamp plate insulating cement 7 and light source glue 8.Lamp Plate 2 is pasted on by bonding agent 4 on the inner peripheral surface of fluorescent tube 1.Shown in figure, bonding agent 4 can be silica gel, and its form is not limited, can To be several sections shown in figure, or in one section of strip.

Lamp plate insulating cement 7 is applied to lamp plate 2 towards on the surface of light source 202 so that lamp plate 2 is not exposed, so as to play lamp The insulating effect that plate 2 is isolated from the outside.Through hole 701 corresponding with light source 202 is reserved during gluing, light source 202 is located at through hole In 701.The constituent of lamp plate insulating cement 7 includes vinyl polysiloxane, hydrogen-based polysiloxanes and aluminum oxide.Lamp plate insulate The thickness range of glue 7 is 100 μm~140 μm (micron).If less than 100 μm, then enough insulating effects are not had, if More than 140 μm, then the waste of material can be caused.

Light source glue 8 is applied to the surface of LED element 202.The color of light source glue 8 is Transparent color, to ensure light transmittance.Coating is extremely Behind the surface of LED element 202, the shape of light source glue 8 can be graininess, strip or sheet.Wherein, the parameter of light source glue 8 has folding Penetrate rate, thickness etc..The scope that the refractive index of light source glue 8 allows is 1.22~1.6, if the refractive index of light source glue 8 is LED members The housing refractive index of part 202 opens radical sign, or the refractive index of light source glue 8 opening radical sign just for the housing refractive index of LED element 202 Minus 15%, then can make total reflection (Internal Total Reflection) occur angular range it is smaller, therefore light transmittance compared with It is good.Here light source shell refers to the housing for accommodating LED grain (or chip).The ranges of indices of refraction of light source glue 8 in the present embodiment For 1.225~1.253.The thickness range that light source glue 8 allows is 1.1mm~1.3mm, if less than 1.1mm, it will lid is not lived LED element 202, effect is not good, if greater than 1.3mm, then can reduce light transmittance, while can also increase material cost.

In the present embodiment, lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1 by bonding agent 4 so that LED element 202 is sticked in lamp It on the inner peripheral surface of pipe 1, can so increase whole branch lighting source lighting angle, expand angle of visibility, so setting can typically make Obtaining angle of visibility can be more than 300 degree.By applying lamp plate insulating cement 7 in lamp plate 2, the light source glue 8 of insulation is applied in LED element 202, The insulation processing to whole lamp plate 2 is realized, so, even if fluorescent tube 1 ruptures, will not also occur electric shock accidents, wanting for safety is met Ask, improve security.

In other embodiments, during lamp plate 2 can be flexible base board, strip aluminium base, FR4 plates or flexible circuit board Any one.Because the fluorescent tube 1 of the present embodiment is glass lamp, if lamp plate 2 uses rigid strip aluminium base or FR4 Plate, then when fluorescent tube rupture, such as after breaking in two, whole fluorescent tube is still able to remain the state of straight tube, and at this moment user has It may think that lighting source can also use and go voluntarily to install, be easily caused electric shock accidents.Due to flexible circuit board tool There are pliability and flexible characteristic, solve rigid strip aluminium base, FR4 plates or Conventional communication flexible with three layers of flexible base board Property the situation not enough with bendability, therefore the lamp plate 2 of the present embodiment uses flexible circuit board, so after fluorescent tube 1 ruptures, lamp Pipe 1 can not support the fluorescent tube 1 of rupture to continue to remain straight tube state after rupturing, to inform that user's lighting source can not make With, it is to avoid the generation of electric shock accidents.Therefore, after using flexible circuit board, it can alleviate to a certain extent due to glass The electric shock problem that pipe is broken and causes.

With continued reference to Fig. 2, lamp plate 2, which is provided with some LED elements 202, lamp holder 3, is provided with lamp circuit module 5, LED members Pass through the electrical communication of lamp plate 2 between part 202 and lamp circuit module 5.

Wherein, lamp circuit module 5 can for single body (i.e. all driving power supply components are all integrated in a part, Lamp circuit module 5 is generally comprised such as rectification unit, control circuit etc. in filtration module, and some embodiments), and located at fluorescent tube In the lamp holder 3 of 1 one end；Or lamp circuit module 5 can also be divided into two parts, it is referred to as double individual (i.e. all power supply modules point It is not arranged in two parts), and two parts are respectively arranged in the lamp holder 3 of lamp tube ends.Or it is placed on the outer of LED daylight lamp Face, is connected by wire with LED daylight lamp.If fluorescent tube 1 only has one end when making strengthening section processing, power supply prioritizing selection is single Body, and be located in the lamp holder 3 corresponding to the end 101 after reinforcing.

In general, reference picture 2.As shown in Fig. 2 one end of lamp circuit module 5 passes through connector and corresponding lamp plate 2 End is connected, and lamp holder 3 is provided with the hollow conductive pin 301 for being used for connecting external power source.The other end passes through metal ferrule (wire) 502 are inserted in the hollow conductive pin 301 of lamp holder 3.After metal ferrule 502 is inserted in hollow conductive pin 301, by outside punching Press the hollow conductive pin 301 of tool impact so that slight deformation occurs for hollow conductive pin 301, so as to fix lamp circuit mould Metal ferrule 502 on block 5, and realize electrical connection.

(or other shapes, such as point-like, Xiao Lianzhuan can be realized to breathe freely and be air-vent of the lamp holder 3 provided with WIFI shapes Can).

During energization, electric current pass sequentially through the hollow conductive pin 301 of LED daylight lamp one end, lamp circuit module 5 (mainly by Rectification unit etc. is constituted) lamp plate 2 is reached, and LED element (sometimes referred to as light source 202), and then LED element are reached by lamp plate 2 Luminous, lamp circuit module 5 generally realizes electrical connection with lamp plate 2 by welding.For LED daylight lamp, on usual lamp plate 2 LED element is only set.Sometimes there is the component provided with simulation heater chain on lamp plate 2.

The lamp circuit module 5 being provided with lamp holder 3 (is also referred to as light source in some embodiments with lamp plate 2 and LED element 632 202nd, LED element 202, LED element 632) connection circuit signal as shown in Figure 1 to Figure 3.Lamp circuit module and LED moulds Block is all contained in the LED daylight lamp.LED daylight lamp each side have a lamp holder (as shown in Figure 2), be socketed on fluorescent tube Two ends.Refer to shown in Fig. 2, there is hollow conductive pin 301 on left side lamp holder 3.One surface of lamp holder 3 has hollow conductive pin 301.With reference to Fig. 2 and Fig. 3 is combined, hollow conductive pin 301, altogether provided with 4, is respectively and electrically connected to 4 metal ferrules 502 (i.e., The first pin A1, the second pin A2 of side；And the 3rd pin B1, the 4th pin B2 of opposite side).

As shown in Figure 3 a, be the preferred embodiment of the utility model first LED daylight lamp circuit diagram.LED daylight Lamp 100 is included：Rectification unit 510, filter unit 520, LED module 530, the protection circuit 560 for voltage clamping and it is used for Detect the circuit for detecting 3570 of voltage signal.

Rectification unit 510 is electrically connected with the first pin A1, the second pin A2 of the LED daylight lamp, to will coupling this One pin A1 and second pin A2 an at least one of AC rectification are into direct current.

Filter unit 520 is electrically connected with the rectification unit 510 to receive the direct current, the direct current to be filtered.

LED module 530 is electrically connected with the filter unit 520, and corresponds to the direct current filtered and light.

In the present embodiment, rectification unit 510 is a bridge rectifier, comprising diode 511,512,513 and 514, Full-wave rectification is carried out to the alternating current to receiving, to produce direct current.

The negative electrode of diode 511 is electrically connected with one end of the filter unit 520, and anode is electrically connected with the moon of diode 512 Pole, and the anode of diode 512 is electrically connected with the other end of the filter unit 520.The connection of above-mentioned diode 511 and 512 Point is electrically connected with second pin A1.One negative electrode of diode 513 is electrically connected with one end of the filter unit 520, and anode is electrical A negative electrode of the diode 514 is connected, and an anode of the diode 514 is electrically connected with the other end of the filter unit 120.On The tie point for the diode 513 and 514 stated is electrically connected with first pin A2.

Rectification unit 510 can also be other kinds of full-wave rectifying circuit or half-wave rectifying circuit, without influenceing this reality The function to be reached with New Scheme.

In the present embodiment, filter unit 520 includes electric capacity 522,523 and an inductance 521.The electric capacity 522 is with connecting The diode 513 and 514 is in parallel.It is then in parallel with the electric capacity 522 and the electric capacity 523 is connected with the inductance 521.The filtering list Member 520 receives the DC signal after the rectification of rectification unit 510, and filters out the radio-frequency component in the DC signal.Through this The filtered DC signal of filter unit 520, its waveform is preferably a smooth DC waveform.

The filter unit 520 can also be that other can filter out the filter circuit of radio-frequency component, without influenceing the utility model The function to be reached.

In the present embodiment, LED module 530 includes inductance 634, at least a LED component 632, transistor switch 635, two Pole pipe 633 and electric capacity 632.Inductance 634, transistor switch 635, diode 633 and electric capacity 532, may be disposed in lamp holder, And LED component 632 is arranged on lamp plate.Diode 633 is connected with transistor switch 635, then with the electricity of filter unit 520 Hold 523 in parallel.The anode of diode 633 is electrically connected with one end of inductance 634 (that is, with the connection of the transistor switch 635 Point), its negative electrode and the anode of an at least LED component 632 are electrically connected with, and the negative electrode of at least LED component 632 is electrically connected with The other end of the inductance 634.There is electric capacity 532 in the branch circuit parallel connection of an at least LED component 632 formation.

Transistor switch 635 receives pulse signal, periodically to turn on and end according to the pulse signal.Above-mentioned pulse Signal can be the pulse signal of a fixed pulse width, or by a PWM controller (not shown) according at least LED groups A pulse width modulation signal produced by the electric current of part 632.When transistor switch 635 is turned on, the electric current of the inductance 521 is flowed through The transistor switch 635.When the transistor switch 635 ends, inductance L electric current flows through at least LED groups through diode 633 Part 632, makes it light.

In the present embodiment, transistor switch 635 is N-type metal-oxide half field effect transistor, and p-type MOSFET crystal Pipe, or enhanced metal-oxide half field effect transistor, vague and general type metal-oxide half field effect transistor, bipolar transistor etc. have switch work( The transistor of energy is also applicable to the utility model.

At least LED component 632 can be single string or light emitting diode of going here and there more, with the different power demands of correspondence there is provided Required illumination.

In the present embodiment, the protection circuit 560 for voltage clamping, including at least a discharge tube.When rectification unit 510 When the magnitude of voltage of output exceeds the threshold value pre-set, moment clamps the voltage at the threshold value of setting.

In the present embodiment, circuit for detecting 3570 is used for the voltage value information for detecting the output of filter unit 520.When detecting electricity Road 3570 detect rectification unit 510 export magnitude of voltage exceed pre-set threshold value when (by bilateral diode of sampling 3571 branch roads constituted with resistance 3572), trigger switch 573, switch 573 is turned on, the electricity now exported from filter unit 520 LED component 202 is flowed through, and switch 573 is returned, and forms electrical circuit (i.e. LED daylight lamp fluorescent lamp is operated under DR patterns)；When detecing , will not trigger switch when the magnitude of voltage that the rectification unit 510 that slowdown monitoring circuit 3570 is detected is exported is without departing from the threshold value pre-set 573, switch 573 disconnects.The now work of switch 635 (i.e. LED daylight lamp fluorescent lamp is operated under BP patterns).

Parameter declaration：In such scheme, the discharge tube selected threshold in protection circuit 560 is 400V~1300V；Preferably Selected threshold is 500V~600V.500V is chosen in the present embodiment.One protection circuit reality of the utility model as shown in Figure 4 a Apply mode.Other embodiment also can, as long as the triggering discharge tube in setting can be realized.

In above-described embodiment, the magnitude of voltage that the rectification unit 510 that circuit for detecting 3570 is used for detection is exported exceeds to be set in advance The threshold value put, the threshold value is generally some value between 400V~1300V.Preferably, some value between selection~450V~700V.

As shown in Figure 3 b, be the preferred embodiment of the utility model second LED daylight lamp circuit diagram.LED daylight Lamp 100 is included：Rectification unit 510, filter unit 520, LED module 530, the protection circuit 560 for voltage clamping and it is used for The circuit for detecting 770 of detecting current frenquency signal (composition of circuit for detecting 770 is as shown in Figure 4 b).Difference with Fig. 3 a schemes exists In：The frequency of input current is detected by circuit for detecting 770, if being detected as the high frequency (electric current generally exported from electric ballast Frequency is more than 20KHz, generally 45KHz or so) when, at this moment trigger the switch set in circuit for detecting, i.e. LED daylight lamp and work In DR patterns；When being such as detected as non-high frequency, at this moment do not trigger the switch set in circuit for detecting, i.e. LED daylight lamp and be operated in BP Pattern.

Such scheme, circuit for detecting 770 or other frequency detection circuits are (as long as the frequency detection circuit can be examined Go out frequency more than 20KHz).

The basic conception of the technical program：

Circuit for detecting provided with detection input signal in LED daylight lamp, the circuit for detecting can detect the voltage of input signal The frequency information of information or input signal.The result detected according to the circuit for detecting, LED daylight lamp is operated in the pattern of setting. Such as：The threshold value that the information of voltage of the filter unit output of circuit for detecting detection is more than setting (is generally higher than 400V, is preferably set to 450V), the switch at this moment set in triggering circuit for detecting, i.e. LED daylight lamp is operated in DR patterns；The filtering of circuit for detecting detection Threshold value of the information of voltage not less than setting of unit output, i.e. LED daylight lamp is operated in BP patterns.Such as：Circuit for detecting (is frequency Detect circuit) detection input rectifying unit signal frequency information, be such as detected as high frequency (generally from electric ballast export Power frequency be more than 20KHz, generally 45KHz or so) when, at this moment trigger the switch that sets in circuit for detecting, i.e. LED days Light lamp is operated in DR patterns；When being such as detected as non-high frequency, the switch set in circuit for detecting, i.e. LED daylight lamp are not at this moment triggered It is operated in BP patterns.

The voltage clamping basic conception that the technical program is proposed：

By detection filter unit output voltage, when reaching given threshold, controlling switch is triggered.Will be right after the switch Filter unit output voltage discharged (according to setting threshold value select appropriate size discharge tube, typically choose 500V~ 500V specifications are chosen in the discharge tube of 600V specifications, this case) control its magnitude of voltage no longer to rise, filtered voltage is maintained one Determine scope.So design and be advantageous in that, it is ensured that relatively low pressure-resistant component is can select in subsequent conditioning circuit, so as to reduce cost. Improve the reliability of fluorescent tube.

A kind of LED daylight lamp is provided in one embodiment of the application, including：Rectification unit, itself and the LED daylight The pin of lamp end is electrically connected with, the AC signal rectification for the ballast output that the pin is received；With the rectification unit The LED module of coupling, it includes at least one LED component；The control circuit coupled with the rectification unit, the LED module； The control circuit includes control module, sampling unit and chip power supply branch road；The chip power supply branch road couples the rectification Unit and the control module to the control module to power；The sampling unit couples the rectification unit and the control Module to the control module to provide sampled signal, and the control module controls the LED module according to the sampled signal It is luminous.

Wherein, control circuit can utilize the effect of Delayed conducting, allow being stored on electric capacity of not wasting of electric energy of starting, Discharged again when needed, the energy can be allowed to use optimization.It can be seen that control circuit is referred to as delay switch circuit. Specifically, the control module in control circuit can include IC modules, MOS switch, the switch motion of MOS switch can be controlled LED module it is luminous, and IC modules can control the switch motion of MOS switch by sampled signal.MOS switch and IC moulds Block can be with Integral design (i.e. built in MOS switch) formation IC modules, can also split design (i.e. MOS switch is external), the application And be not intended to be limited in any, it will be shown below by different embodiments.

As shown in Figure 3 c, be the preferred embodiment of the utility model the 3rd LED daylight lamp circuit diagram.LED daylight Lamp 500 is included：Rectification unit 510, LED module 530, delay switch circuit 1590 (being referred to as controlling circuit).

(in other examples, pin A can by pin A, the pin B of the electric connection of rectification unit 510 LED daylight lamp It is split as pin 501/502；Pin B is split as pin 503/504), to the ballast by pin A or pin B is coupled AC rectification into direct current.The ballast can be inductance type ballast or electronic ballast.

LED module 530 is electrically connected with the rectification unit 510, and corresponds to the direct current filtered and light.

In the present embodiment, LED module 530 includes electric capacity 633.The electric capacity 633 and the branch road of the formation of LED component 632.Rise To voltage stabilizing and the effect of filtering.Filter for by the DC signal after rectification, and filter out the radio-frequency component in the DC signal.

Delay switch circuit 1590, comprising：One MOS switch 1591, drive the MOS switch 1591 work IC modules and should The supplementary module of IC modules.The supplementary module comprises at least the chip power supply branch road for providing IC module working powers and sampling is single Member.The branch routing resistance 1594 and the series connection of electric capacity 1595 for providing IC module working powers are formed, in resistance 1594 and electric capacity 1595 Tie point be electrically coupled to the chip power supply ports (also referred to as VCC ends) of IC modules.Sampling unit has the (first resistor of resistance 1592 1592) and 1593 (second resistances 1593) series connection is formed, there is in IC modules power detecting end (OVP) port, pass through the port The magnitude of voltage (voltage over the ground) of the tie point of sampling resistor 1592 and 1593, according to magnitude of voltage IC module drive MOS switches 1591 actions (conduction and cut-off).The IC modules control MOS switch 1591 to turn on when the magnitude of voltage reaches predetermined threshold, So that the LED module 530 is luminous.

Parameter declaration：IC modules are connected in series the magnitude of voltage (electricity over the ground at point D ends by sampling resistor 1592 and 1593 Pressure).Scope 0.7V~1.25V of the magnitude of voltage (i.e. predetermined interval is 0.7V~1.25V).Preferably choose 1.0V.At this moment IC moulds Block sends instruction, and MOS switch 1591 is turned on.Resistance 200K () ohms of resistance 1592~500K ohm；Preferably choose, 300K ohm~400K ohm；360K ohm are chosen in the present embodiment；The resistance 0.5K of resistance 1593~4K ohm, preferably Choose 1.0K ohm~3K ohm；1K ohm are chosen in the present embodiment.

In the LED daylight lamp of sampling this programme, connect the end points C formed for sampling resistor 1593 and 1593：Apply During electric ballast occasion, LED daylight lamp switches on power initial stage (time is less than in 100ms, in the usual 20~30ms) electricity of C-terminal Pressure is between 200V~300V, as electric ballast smoothly works, the voltage rise of C-terminal, and then the voltage at D ends also rises therewith Height, when the voltage at D ends reaches the threshold value of design, IC modules send instruction (signal), MOS switch conducting (LED daylight lamp work Make), MOS switch maintains conducting state afterwards；Apply in Inductive ballast occasion, run " zero passage " using Inductive ballast Characteristic, by taking civil power 120V as an example, when the initial stage that LED daylight lamp is powered is (when the voltage of IC module samples to D ends is less than 0.2V (this programme uses 0.1V), IC modules send instruction, MOS switch conducting, the conducting state of MOS switch maintenance afterwards.

By above-mentioned design, LED daylight lamp can be applied to the occasion of electric ballast and Inductive ballast.

In such scheme, IC modules are packaged into an IC module with MOS switch, i.e., by built in MOS switch.

As the deformation of such scheme, the power frequency that IC modules are exported by rectification unit of sampling, control MOS switch Act (conduction and cut-off).When being typically used in the occasion of Inductive ballast, the frequency of detection is no more than 400Hz (i.e. frequency thresholds It is worth for 400HZ)；And apply in the occasion of electric ballast, it is high-frequency signal.By the threshold value of setpoint frequency, it can also realize LED fluorescent lamps are applied to Inductive ballast and electric ballast.That is, described IC modules reach frequency threshold in the frequency values When control MOS switch conducting so that the LED module is luminous.

In the present embodiment, rectification unit 510, the ballast capacitor in LED module 530 and delay switch circuit 1590 are generally set Be placed in lamp circuit module 5 in (i.e. on circuit board), LED module 530 LED component (sometimes referred to as light source 202, composition In branch road setting and lamp plate 2).

As shown in Figure 3 d, be the preferred embodiment of the utility model the 4th LED daylight lamp circuit diagram.LED daylight Lamp 500 is included：Rectification unit 510, LED module 530, delay switch circuit 1590 (being referred to as controlling circuit).

The pin 501/502 and pin 503/504 of the LED daylight lamp is electrically connected in rectification unit 510, to by coupling The AC rectification of pin ballast output is connect into direct current.The ballast is electronic ballast (or inductance type town Flow device).

In the present embodiment, LED module 530 includes electric capacity 633.The branch road that the electric capacity 633 is formed with LED component 632 is simultaneously Connection.LED module 530 also includes inductance 635, and the inductance 635 is connected with the branch road of LED component 632.

In other embodiments of the present utility model, be also parallel with above-mentioned electric capacity 633 release can resistance (it is not shown, be used for Prevent LED component from flashing).

In other embodiments of the present utility model, be also parallel with above-mentioned inductance 635 diode 634 (diode Polarity and the opposite polarity (as shown in Figure 3 d) of the branch road of the formation of LED component 632.The diode 634 plays afterflow to inductance 635 Effect.

As the deformation of embodiment of the present utility model, inductance 635 may be provided at rectification unit 510 and LED module 530 it Between (at this moment, can be not provided with LED module 530 inductance and its parallel connection diode).It can also be provided at pin and rectification unit Between 510 (and before rectification).At this moment, can also parallel diode on the inductance (to inductance progress afterflow).

As the deformation of above-described embodiment scheme, between the output end of side rectification unit 510 provided with clamp diode with Protect LED fluorescent lamps 500.Threshold value 600V~800V of the usual clamp diode, in this programme, the threshold of clamp diode It is worth for 700V.

Delay switch circuit 1590, comprising：One MOS switch 1591, drive the MOS switch 1591 work IC modules and should The supplementary module of IC modules.The supplementary module, including at least there is provided the branch road of IC module working powers, and sampling unit.There is provided Branch routing resistance 1594 and electric capacity 1595 series connection of IC module working powers are formed, in resistance 1594 (the 8th resistance) and electric capacity The tie point of 1595 (the 3rd electric capacity) is electrically coupled to the power drives port (VCC) of IC modules.Sampling unit have resistance 1592 and 1593 series connection are formed, and are had OVP ports in IC modules, are passed through the magnitude of voltage of the tie point of the port sampling resistor 1592 and 1593 (voltage over the ground), is acted (conduction and cut-off) according to magnitude of voltage IC module drives MOS switch 1591.

Parameter declaration：IC modules are connected in series the magnitude of voltage (electricity over the ground at point D ends by sampling resistor 1592 and 1593 Pressure).Magnitude of voltage 0.9V~1.25V.Preferably choose 1.0V.At this moment IC modules send instruction, and MOS switch 1591 is turned on.Resistance 200K ohm~500K ohm of 1592 resistance；Preferably choose, 300K ohm~400K ohm；360K is chosen in the present embodiment Ohm；The resistance 0.5K of resistance 1593~4K ohm, preferably chooses 1.0K ohm~3K ohm；1K is chosen in the present embodiment Ohm.Wherein, resistance 1592 and resistance 1593 can be single resistance, can also be formed by multiple small (son) resistant series, As long as its resistance is equivalent to the resistance size of resistance 1592 and resistance 1593.

In the LED daylight lamp of sampling this programme, connect the end points C formed for sampling resistor 1592 and 1593：Apply During electric ballast occasion, LED daylight lamp switches on power initial stage (time is less than in 100ms, in the usual 20~30ms) electricity of C-terminal Pressure is between 200V~300V, as electric ballast smoothly works, the voltage rise of C-terminal, and then the voltage at D ends also rises therewith Height, when the voltage at D ends reaches the threshold value of design, IC modules send instruction (signal), MOS switch conducting (LED daylight lamp work Make), MOS switch maintains conducting state afterwards；Apply in Inductive ballast occasion, run " zero passage " using Inductive ballast Characteristic, by taking civil power 120V as an example, when the initial stage that LED daylight lamp is powered is (when the voltage of IC module samples to D ends is less than 0.2V (this programme uses 0.1V), IC modules send instruction, MOS switch conducting, the conducting state of MOS switch maintenance afterwards.

The inductance set up chooses 1~10mH.Preferably choose 1~5mH.2mH is chosen in above-described embodiment.

In such scheme, IC modules can be packaged into an IC module with MOS switch.

As the deformation of such scheme, IC modules control MOS switch by sampling, the power frequency of rectification unit output Action (conduction and cut-off).When being typically used in the occasion of Inductive ballast, the frequency of detection is no more than 400Hz；And apply It is high-frequency signal during the occasion of electric ballast.By the threshold value of setpoint frequency, it can also realize that LED daylight lamp is applied to inductance Ballast and electric ballast.

In the present embodiment, rectification unit 510, the ballast capacitor in LED module 530 and delay switch circuit 1590 are generally set The LED component being placed in lamp circuit module 5 in (i.e. on circuit board), LED module 530 (is sometimes referred to as light source 202, LED groups Part, the branch road of composition) set with lamp plate 2 on.

As shown in Figure 3 e, be the preferred embodiment of the utility model the 5th LED daylight lamp circuit diagram.With Fig. 3 d's Difference is that embodiment adds two simulation heater chains 570, the two of the two simulations each self-contained series connection of heater chain 570 Resistance 573 and 574, and the electric capacity 571 and 572 connected, and the tie point of two resistance 573 and 574 couples two electric capacity 571 and 572 tie point.When light-emitting diode lamp tube is installed on the tube face with preheating function (for example：With electronics town Flow the tube face of device), in warm, the electric current of AC signal can flow through the resistance 573 of the two simulations heater chain 570 And the 574, electric capacity 571 and 572, and reach the effect of simulation filament.In this way, electric ballast can normally be spent on startup The filament pre-heating stage, and ensure electric ballast and normally start.

As the deformation of such scheme, in other embodiments of the present utility model, in the pin (501 of LED daylight lamp And/or 502；503 and/or 504) on string set a protection device.The preferable protection device is Thermal Cutoffs, to prevent LED days (the mechanism of sparking of striking sparks occurs in hot line job for light lamp：High pressure can be exported during electric ballast stable operation (is usually 600Vrms), in charged for replacement LED daylight lamp fluorescent tube, if LED daylight lamp fluorescent tube one end has connected, one end is not in contact with (there is a certain distance in the conductive copper sheet of conductive pin and lamp socket i.e. on the lamp holder of LED daylight lamp).In this case, due to leading There is high pressure between acusector and conductive copper sheet, can puncture can produce substantial amounts of heat at air formation arcing, electric arc, cause conductive pin And neighbouring working of plastics (lamp holder) is the problems such as melt.), burn the lamp holder of LED daylight lamp.Generally, the temperature of Thermal Cutoffs is chosen Threshold range is spent between 130 degree~150 degree.Preferably, the temperature threshold scope of Thermal Cutoffs is between 130 degree~140 degree. In above-described embodiment, the temperature threshold scope of Thermal Cutoffs chooses 140 degree.When the lamp holder of the LED daylight lamp is struck sparks, Fuse the Thermal Cutoffs.

Simulation heater chain can also be using the scheme for being only NTC (negative temperature coefficient resister).Now the resistance of the NTC does not surpass Cross 15 ohm.Preferably, resistance is between 2 ohm~10 ohm.Generally choose 4~5 ohm.

As illustrated in figure 3f, be the preferred embodiment of the utility model the 6th LED daylight lamp circuit diagram.

LED daylight lamp 500 is included：Rectification unit 510, LED module 530, control circuit 2590.

The pin 501/502 and pin 503/504 of the LED daylight lamp is electrically connected in rectification unit 510, to by coupling The AC rectification of ballast output of the pin is connect into direct current.The ballast is electronic ballast (or inductance type Ballast).

In the present embodiment, LED module 530 includes electric capacity 633.The branch road that the electric capacity 633 is formed with LED component 632 is simultaneously Connection, plays a part of current stabilization and filtering.

LED module 530 also includes inductance 635, and the inductance 635 is connected with the branch road of LED component 632.The present embodiment is in inductance A triggers circuit is set up at 635.The base stage of triode 638 is connected respectively to the two ends (triode 638 of inductance 635 with colelctor electrode Colelctor electrode be connected to the cathode terminal of LED component 632), in base stage and inter-collector and base stage and the transmitting interpolar of triode 638 Resistance 636, resistance 637 are respectively equipped with, the emitter stage of triode 638 is connected to the DRN ends of IC modules 2591.Usual LED component The electric current of 632 outflows is through inductance 635 and the formation of resistance 637 loop, the formation pressure drop of current flowing resistance 637, when the pressure drop reaches The conducting voltage (being usually 0.7V) of triode 638, triode 638 is turned on, and at this moment portion of electrical current is shunted through triode.This implementation In example, resistance 637 chooses 1.7 ohm.But it can also be adjusted according to the size of current of setting and (flow through the resistance and electricity of the resistance The product of stream is the conduction threshold of triode).Resistance 636 generally chooses 0.5~2K.1K ohm are chosen in the present embodiment.

As the deformation of such scheme, triode 638 also can use MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) pipe replacement.

In other embodiments of the present utility model, be also parallel with above-mentioned electric capacity 633 for release can resistance (it is not shown, For preventing that LED daylight lamp flashes during shut-off).

Circuit 2590 is controlled, comprising：IC modules 2591；The IC modules are included

Chip power supply (VCC) end of IC modules 2591, earth terminal (GND ends, reference ground), the whole triggering (CS) of current adjustment End, MOSFET drain electrodes (DRN) end built in two and constant current mode triggering (STP) end；One end of resistance 2598 and rectification unit 510 An output end be connected, other end connection and one end of electric capacity 2599, the other end ground connection of electric capacity 2599.Built in described two MOSFET drain electrode ends (tie point A) are coupled with the LED module.Resistance 2598 (the 8th resistance) and (the 3rd electricity of electric capacity 2599 Hold) junction be electrically connected to VCC ends, being powered to IC modules 2591, (VCC voltage is usually 10~30V, preferably, 20 ~30V, the present embodiment chooses 28V)；

Resistance 2594 is connected the electrical output end for being connected to rectification unit 510 in branch road two ends formed with resistance 2595, The junction of resistance 2594 and resistance 2595 is electrically connected to the CS ends of IC modules 2591 through resistance 2596 (the 7th resistance)； Electric capacity 2597 (the first electric capacity) is provided between CS ends and B points (output end of rectification unit)；

Sampling unit has resistance 2592 (3rd resistor) and 2593 (the 4th resistance) series connection to be formed, and IC modules 2591 have STP (i.e. OVP) port, passes through magnitude of voltage (voltage over the ground, at the tie point D ends of the port sampling resistor 2592 and 2593 One magnitude of voltage), according to the magnitude of voltage, IC modules 2591 drive the MOS conduction and cut-offs built in it.

Sampling unit has resistance 2594 (the 5th resistance) and 2595 (the 6th resistance) series connection to be formed, what IC modules 2591 had CS ports, pass through magnitude of voltage (voltage over the ground, second voltage at the tie point E ends of the port sampling resistor 2594 and 2595 Value), according to the magnitude of voltage, IC modules 2591 drive the MOS switch conduction and cut-off built in it.

For IC modules 2591, with 2 kinds of functional modes, under the first pattern, IC modules 2591 are by being attached thereto MOS switch (this programme uses MOS switch built in IC modules), with function (referred to as, the electricity for flowing into the regulation electric current of LED module 530 Flow adjustment modes)；In another mode, i.e., IC modules 2591 by the MOS switch that is attached thereto, (this programme uses IC modules Built-in MOS switch) trigger the MOS switch, then maintain to flow into function (referred to as, the constant current mould of the regulation loop current of LED module 530 Formula).

Next the action of the IC modules of detailed description this embodiment scheme, after LED daylight lamp is powered, passes through electricity of sampling Resistance 2592 and resistance 2593 between end points D information of voltage, and the end points E between sampling resistor 2594 and resistance 2595 electricity Pressure information judges that IC modules work in which kind of pattern (i.e. current regulation mode or constant current mode；The information of voltage of E points collection is (right The voltage on ground) correspond to IC modules work when with regulation electric current function, and D points collection information of voltage (voltage over the ground) Function without regulation electric current when being worked corresponding to IC modules).That is, described IC modules 2591 are located at first in the first voltage value The LED module is controlled to be worked under constant current mode during predetermined interval；It is located at the second predetermined interval control in the second voltage value The LED module is made to work under current adjustment section pattern.

IC modules work in constant current mode in this programme, that is, trigger STP ends, and its turn-on condition is：When the voltage at sampling D ends Vd≤X1V (usual 0V<X1<0.5V, it is preferred that 0V<X1<0.3V, this case uses 0.1V) or Vd >=X2V (X2 >=1.0V, this case Using 1.2V) when IC modules 2591 built in switch conduction.It can also be expected that the first predetermined interval is to be less than 0.5 more than 0 volt Volt or more than or equal to 1 volt.

IC modules work in current regulation mode in this programme, that is, trigger CS ends, and its turn-on condition is：When sampling E ends Voltage X4V≤Vd≤X3V (usual 0.5V<X4<0.85V, it is preferred that 0.7V<X1<0.8V, this case uses 0.75V.Generally 0.85V<X3<1.0V, it is preferred that 0.9V<X3<0.98V, this case uses 0.95V).Trigger behind CS ends, pass through resistance 2596 and electricity Hold 2597 periodic discharge and recharges to realize the ON/OFF of MOS switch (by adjusting the ON/OFF of MOS switch, i.e., similar dutycycle is real Existing electric current regulation.It can also be expected that the second predetermined interval is to be less than 1 volt more than 0.5 volt.Resistance 2596 and electric capacity 2597 Parameter depending on need to design regulation electric current number depending on).In in the present embodiment, the resistance 0.5K of resistance 2596~4K ohm, compared with 1.0K ohm~3K ohm of good selection；This case chooses 1K ohm.

1~500nF of capacitance of electric capacity 2597, preferably chooses 20~30nF, and 4.7nF is chosen in this case.In others implementation In example, impulse generator (similar PWM controls) also can use to realize replacement.

In such scheme, when IC modules work in constant current mode, now there is IC modules latch function (to pin current work Make the function of state, realize constant current mode).The latch function state is maintained until shut-off external power source.During restarting via The sampled result of sample circuit judges which kind of pattern worked in.

When this embodiment scheme can be applicable to electric ballast occasion, LED daylight lamp switches on power initial stage, and (time is less than In 100ms, in usual 20~30ms) voltage of C-terminal is between 200V~300V, as electric ballast smoothly works, C-terminal Voltage rise, and then the voltage at D ends also increases, and when the voltage at D ends reaches the threshold value of design, IC modules send instruction (signal), MOS switch conducting (LED daylight lamp work), the conducting state of MOS switch maintenance afterwards；The resistance of resistance 2592 is The resistance of 540K ohm and resistance 2593 is 1K ohm, and the conducting voltage of IC modules 2591 is：1.2V (also can according to the algorithm, Default others threshold value).At this moment the size for flowing through the electric current of LED module is unadjustable.

When this embodiment scheme can be applicable to electric ballast occasion, LED daylight lamp switches on power initial stage, and (time is less than In 100ms, in usual 20~30ms) voltage of C-terminal is between 200V~300V, as electric ballast smoothly works, C-terminal Voltage rise, and then the voltage at D and E ends also increases, and when the voltage at E ends reaches the threshold value of design, triggers IC modules CS ends, the IC modules send instruction (signal), MOS switch conducting (LED daylight lamp work), and MOS switch is according to design afterwards Frequency conduction and cut-off (realize electric current adjust).The resistance of resistance 2594 is that the resistance of 420K ohm and resistance 2593 is 1K Europe Nurse.At this moment the size for flowing through the electric current of LED module can adjust.

The also compatible ballast of the scheme of the present embodiment is inductive type ballast.(utilize inductive ballast " zero passage " Characteristic, that is, sample Vd<0.25v (or 0.2V).That is, the first predetermined interval is less than 0.25 volt, with compatible inductive type ballast. Apply in inductive type ballast occasion, the characteristic of " zero passage " is run using Inductive ballast, by taking civil power 120V as an example, works as LED The initial stage that fluorescent lamp is powered (when the voltage of IC module samples to D ends is less than 0.2V (this programme uses 0.1V), triggers IC modules 2591 STP ends, the IC modules send instruction, built-in MOS switch conducting, the conducting state of MOS switch maintenance afterwards.At this moment flow The size for crossing the electric current of LED module is unadjustable.

As the improvement of such scheme, in order to maintain the stabilization at STP ends, can be connected in parallel with a capacitor at resistance 2593 (the Two electric capacity).The electric capacity 100~500nF of value, preferably chooses 200~300nF, and the present embodiment chooses 220nF.

Such scheme is that description combines the information of voltage of sampling and designed, and in actual applications, can also pass through letter sometimes Single deformation, the work of IC modules is felt by sample rate current information in what mode.

The form of MOS switch built in IC modules is used in such scheme, can also be added in some occasions using IC modules external The form of MOS switches.

In other embodiments, STP function can be triggered without the voltage Vd≤X1V at D ends of sampling, at this moment only need to be in electricity (non-resistive 2593 is close to D sides) sets a diode (to note, the negative electrode of the diode is connected between hindering 2593 and equivalent point B Imitate point B), this function is evaded using pressure drop during diode current flow.Sometimes also just with two Diode series (connection ibid, this When shunt capacitance is distinguished on two diodes, this two electric capacity is connected in series.

Parameter declaration：

200K ohm~600K ohm of the resistance of resistance 2592；Preferably choose, 270K ohm~600K ohm；This implementation 540K ohm are chosen in example；The resistance 0.5K of resistance 2593~4K ohm, preferably chooses 1.0K ohm~3K ohm；This implementation 1K ohm are chosen in example.200K ohm~500K ohm of the resistance of resistance 2594；Preferably choose, 300K ohm~500K Europe Nurse；420K ohm are chosen in the present embodiment；The resistance 0.5K of resistance 2595~4K ohm, preferably chooses 1.0K ohm~3K Europe Nurse；1K ohm are chosen in the present embodiment.Wherein, resistance 2592 and resistance 2593, resistance 2594 and resistance 2595 can be single Individual resistance, can also be formed by multiple small (son) resistant series, as long as its resistance is equivalent to resistance 2592 and resistance 2593, resistance 2594 and the resistance size of resistance 2595.

The inductance set up chooses 1~10mH.Preferably choose 1~8mH.6mH is chosen in above-described embodiment.

To increase the resistance to pressure of IC modules 2591, at A ends (tie point of MOSFET drain electrode ends and LED module built in two) A bilateral diode or discharge tube are set up between ground connection.300~600V of voltage threshold of bilateral diode or discharge tube is (on pressure-resistant Limit is identical with the pressure-resistant upper limit of IC modules).Preferably, choosing 400~500V.Threshold value is chosen for 400V in the present embodiment.

The mentality of designing (current regulation mode or constant current mode) of above-mentioned design IC module schemes may be used on such as Fig. 3 c, In scheme shown in d, e, parameter makees appropriate adjustment (not repeating herein) depending on application scenarios.

As shown in figure 3g, be the preferred embodiment of the utility model the 7th LED daylight lamp circuit diagram.With Fig. 3 f's Difference is that embodiment adds two simulation heater chains 570, the two of the two simulations each self-contained series connection of heater chain 570 Resistance 573 (the tenth resistance) and 574 (the 11st resistance), and the electric capacity 571 (the 4th electric capacity) of series connection and 572 (the 5th electricity Hold), and the tie point of two resistance 573 and 574 couples the tie point of two electric capacity 571 and 572.I.e. LED daylight lamp can be applied In the occasion of PS type ballasts, when the LED daylight lamp is installed on the tube face with preheating function (for example：With PS types town Flow the tube face of device), in warm, the electric current of AC signal can flow through the two simulations heater chain 570 the resistance 573 and 574th, the electric capacity 571 and 572, and reach the effect of simulation filament.In this way, PS types ballast can normally spend lamp on startup Silk warm-up phase, and ensure ballast and normally start.

Parameter declaration：In scheme as described in Fig. 3 g, for simulation heater chain 570, the resistance of resistance 573 and resistance 574 Value 10K ohm~1M (million) ohm, preferably using 100K ohm~1M (million) ohm, uses 100K ohm in this programme；Electricity The capacitance of appearance 571 and 572:3nF~2pF, preferably, the capacitance of electric capacity 571 and 572:In 3nF~100nF, this programme, use 4.7nF。

In practical application, Redundancy Design can be carried out with 2 small capacitances series connection by playing current stabilization bulky capacitor 633.At this moment by In using 2 small capacitances, the small capacitances can select film-type electric capacity, can so be disposed on lamp plate, (generally using single The electric capacity is arranged in power module during bulky capacitor).Using the embodiment of this programme, power module is arranged at LED daylight lamp two In the lamp holder of side (some occasions also have the lamp holder for being provided only on side), power module is included：The simulation heater chain 570 of side (also the simulation heater chain 570 of both sides can be all arranged at power module), rectification unit, control circuit 2590 etc., LED moulds The branch road of LED component 632 in block 530 is connected on lamp plate, and remaining component (such as inductance 635) is arranged on by being reasonably laid out On power module.

As illustrated in figure 3h, be the preferred embodiment of the utility model the 8th LED daylight lamp circuit diagram.

LED daylight lamp 500 is included：Rectification unit 510, LED module 530, control circuit 3590.

The pin 501/502 and pin 503/504 of the LED daylight lamp is electrically connected in rectification unit 510, to by coupling The AC rectification of pin ballast output is connect into direct current.The ballast is electronic ballast.

In the present embodiment, LED module 530 includes the electric capacity 633 for being mainly used in filtering.The electric capacity 633 and LED element 632 branch circuit parallel connections formed, play a part of voltage stabilizing and filtering.

If the electric current for flowing into LED module 530 is excessive, the electric current for flowing through MOS switch 3591 is consequently increased, e.g., stream The electric current for crossing MOS switch 3591 exceedes its rated value, and MOS switch temperature rises, when MOS switch 3591 is chronically at the state, MOS switch 3591 can be damaged or reduction of service life.And then influence the service life of LED daylight lamp.To prevent from flowing through MOS switch 3591 electric current is excessive, a triode 3592 in parallel on the MOS switch 3591, when the electric current for flowing through MOS switch 3591 exceeds During the threshold value of setting, shunted by the triode 3592.

Next, the course of work of description triode 3592.The base stage of triode 3592 is provided with resistance with transmitting interpolar 3593 (the 9th resistance).The electric current that usual LED element 632 flows out is through MOS switch 3591, the formation of resistance 3593 loop, electric current stream Resistance 3593 is crossed, pressure drop is formed on the resistance, when the pressure drop reaches the conducting voltage (being usually 0.7V) of triode 3592, three Pole pipe 3592 is turned on, and loop is formed behind the electric current interflow that at this moment portion of electrical current flows out after triode with resistance 3593.So as to reach The purpose of the electric current of MOS switch 3591 is flowed through to suppression.

In the present embodiment, resistance 3593 and the electric current corresponding relation for flowing through the resistance：

Assuming that the resistance of resistance 3593, Rx=10 Ω, the positive bias-voltage 0.7V of emitter junction of triode 3592, triode electric current Electric current in multiplication factor β=50, circuit, I is total=1A：

When reaching the positive bias-voltage 0.7V of emitter junction of triode 3592, the electric current for flowing through resistance 3593 is Ir=0.7/10 (mA) total-Ir=930 (mA) of electric current Ie=I of the emitter stage of triode 3592=70 (mA), are flowed through；At this moment triode is flowed through The electric current Ib=Ie/ (1+ β)=18.2 (mA) of 3592 base stage；

Then flow through the electric current of MOS switch 3591：Imos=Ib+Ir=88.2 (mA).

The drive signal of MOS switch 3591 is sent by IC.In the present embodiment, after MOS switch 3591 is turned on, maintain to lead always Logical state, can further reduce the switching loss of the MOS switch.In other embodiments, MOS switch 3591 can also be Frequency no more than 100KHz is switched.

It should be noted that the above-mentioned embodiment for being merely given as a reference, the field that design parameter and specification are visually applied Close and it is slightly different.

In other embodiments of the present utility model, the high-impedance resistors for releasing energy are also parallel with above-mentioned electric capacity 633 (not shown, for preventing LED element from flashing), its resistance is usually between tens K to hundreds of K ohm.Applied to it is high-power when (usual power is more than 30W), the resistance can discharge the energy of filter capacitor using cement resistor, prevent LED from flashing.

Inventor has found that such as Fig. 3 h show the LED daylight lamp of scheme in the electronics town with some brands during experiment When flowing device combination application, by the generation of noise, therefore, inventor has carried out further improvement to Fig. 3 h scheme, propose such as Scheme shown in Fig. 3 i.The program shows that the difference of scheme is with Fig. 3 h：

LED module 530 is also comprising the inductance 635 for suppressing current break, and the inductance 635 is connected with the branch road of LED element 632. The mutation of electric current in loop is suppressed by the inductance 635.And then suppress due to the changes in amplitude of electric ballast output current But at this moment and (at this moment noise caused by electric ballast output current changes in amplitude is not completely without to the noise produced The frequency human ear of current magnitude variation is insensitive to this).

Applicant also found during experiment, because inductance 635 has the function of suppressing current break, if initial flow The electric current for entering the inductance is larger (such as 1A), then the inductance is constantly in the state for flowing through larger current, because inductance has in itself Resistance, so its heating are more severe.In order to reduce the caloric value of inductance, it can come by using the form of triode bypass circuit Suppression flows into the electric current of inductance 635, while reaching the lighting requirement of LED module.

Next, detailed description triode bypass circuit.The base stage of triode 638 is connected respectively to inductance with colelctor electrode 635 two ends (colelctor electrode of triode 638 is connected to the cathode terminal of LED element 632), in the base stage and current collection of triode 638 Interpolar and base stage are respectively equipped with resistance 636, resistance 637 with emitter stage part, and the emitter stage of triode 638 is connected to MOS switch 4592 drain electrode end.The electric current that usual LED element 632 flows out opens the light 4591 formation loops through inductance 635, resistance 637 and MOS, The formation pressure drop of current flowing resistance 637, when the pressure drop reaches the conducting voltage (being usually 0.7V) of triode 638, triode 638 Conducting, at this moment portion of electrical current is shunted through triode.(realize that suppression flows into inductance so as to reach that suppression flows through the electric current of resistance 637 The excessive purpose of 635 electric current).In the present embodiment, resistance 637 chooses 1.7 ohm.But also can according to setting size of current and Adjustment (flows through the conduction threshold of the resistance of the resistance and the product of electric current for triode).The generally selection 0.5 of resistance 636~ 2K.1K ohm are chosen in the present embodiment.Resistance 636 is acted on overvoltage protection, and it is used to protect triode not to be broken down by high-voltage.

In other embodiments of the present utility model, be also parallel with above-mentioned electric capacity 633 for release can resistance (it is not shown, For preventing LED element from flashing).

In other embodiments of the present utility model, be also parallel with above-mentioned inductance 635 diode 634 (diode Polarity and the opposite polarity (as shown in Figure 3 d) of the branch road of the formation of LED element 632.The diode 634 plays afterflow to inductance 635 Effect.

Sent for the drive signal of MOS switch 3591 by IC.IC modules comprise at least a signal acquisition circuit and power supply Supply circuit (not shown).In other embodiments of the present utility model, MOS switch can be encapsulated into a module with IC modules In.

In other embodiments of the present utility model, in the scheme shown in Fig. 3 h and Fig. 3 i, two ends increase such as institute in Fig. 3 h The simulation heater chain 570 shown, two resistance 573 and 574 of each self-contained series connection of the simulation heater chain 570, and series connection Electric capacity 571 and 572, and the tie point of two resistance 573 and 574 couples the tie point of two electric capacity 571 and 572.When luminous two Pole pipe fluorescent tube when being installed on the tube face with preheating function (for example：Tube face with electric ballast), in warm, The electric current of AC signal can flow through the resistance 573 and 574, the electric capacity 571 and 572 of the two simulations heater chain 570, and reach Simulate the effect of filament.In this way, electric ballast can normally spend the filament pre-heating stage on startup, and ensure electronic ballast Device normally starts.

Lamp plate uses printed circuit board (PCB) or flexible circuit board (being FPC plates preferably from flexible circuit board), and electric Source module then uses the structure of printed circuit board (PCB).

In other embodiments, the big electricity for being used to prevent from flashing during power cutoff of electric capacity 633 will can be parallel to Resistance is also disposed on lamp plate.Inductance 635 is arranged on power module, it is also an advantage that being：The suppression electric current that this case is selected The inductance value of the inductance of mutation is 6mH, heavier, and being such as arranged at lamp plate, using flexible structure, (i.e. lamp plate compares due to lamp plate It is soft), the difficulty of making can be increased during manufacture.

It should be noted that BP patterns refer to that LED daylight lamp is applied and are directly electrically connected in no ballast in above-described embodiment Civil power is connected to, DR patterns refer to that LED daylight lamp application has ballast occasion.

As shown in figure 5, the deformation to simulate heater chain 570.It is as shown in Figure 5 a the topology of a simulation heater chain 1960 Signal, the simulation heater chain 1960 comprising resistance 1963 and series connection electric capacity 1961 and 1962, and the electric capacity 1961 and 1962 series arm is in parallel with resistance 1963.

It is as shown in Figure 5 b the topology signal of a simulation heater chain 1660, the simulation heater chain 1660 includes resistance 1665 And electric capacity 1663, and the resistance 1665 and electric capacity 1663 are in parallel.

In preferred embodiment, the printed circuit board of power module can be equipped with electronic building brick using two-sided.Rectification list Part or all of circuit in the circuits such as member 510, filter unit 520 includes dual inline type (DIP, dual inline- Pin) package assembling.These dual-inline package components are arranged on the same side in left side and/or right side printed circuit board； In addition, left side and/or right side printed circuit board may also set up the component of non-dual-inline package.Because component height is higher Dual-inline package component is arranged at the same side, can effectively reduce the printed circuit board whole height for having set component.

In another embodiment, the component height that can be arranged at printed circuit board (PCB) is classification foundation.Group on printed circuit board (PCB) Part is highly uniformly arranged at the same side higher than the component of a predetermined altitude value；And the setting of other components is not limited then, also may be used In the same side or partly or entirely in opposite side.

Because lamp holder 3 is provided with air-vent, the heat produced by can alloing these electronic building bricks in lamp holder passes through saturating Stomata carries out heat loss through convection.Preferably, the material of fluorescent tube is glass.The heat transfer of glass material is better than plastic material.LED component 202 when being affixed on tube inner wall, and the heat produced by LED component 202 works can conduct and be radiated through glass tube, even Heat produced by LED components 202 can also carry out right radiating through air-vent simultaneously.Or blown out by the heat emission hole Or the steam in sucking-off LED daylight lamp.

In the present embodiment, male plug 501, the connected mode of female plug 201 can not also be used, and can be beaten with conventional wires Line mode replaces, i.e., using a traditional plain conductor, by one end of plain conductor and power electric connection, the other end and lamp plate 2 electrically connect, but the mode of wire routing connection is possible to having in transportation in the potential risk of fracture, quality slightly Difference.

As described above, the utility model complies fully with the important document of patent three：Practicality in novelty, creativeness and industry. The utility model has hereinbefore been disclosed with preferred embodiment, and so being familiar with the technology person should be understood that the embodiment is only used In description the utility model, and it is not construed as limiting scope of the present utility model.It should be noted that such as with the embodiment etc. The change and displacement of effect, all should be set to be covered by category of the present utility model.Therefore, protection domain of the present utility model when with Appended claims institute confining spectrum is defined.

Claims

1. a kind of LED daylight lamp, it is characterised in that including：

Fluorescent tube；

It is arranged at the lamp plate in the fluorescent tube；The lamp plate is used for luminous LED element provided with least one；

It is arranged at the lamp holder of the lamp tube end；Power module is provided with the lamp holder；The power module passes through the lamp plate With the LED element electrical communication；

The power module is provided with rectification unit and control circuit；The control circuit includes control module, sampling unit And chip power supply branch road；The chip power supply branch road couples the rectification unit and the control module with to the control module Power supply；The sampling unit couples the rectification unit and the control module to provide sampled signal to the control module, The control module controls the LED element to light according to the sampled signal.

2. LED daylight lamp as claimed in claim 1, it is characterised in that：The two ends of the sampling unit are respectively coupled to described whole Flow the output end of unit；The control module includes IC modules and MOS switch；The MOS switch couple the IC modules and LED module；Sampling unit and chip power supply branch road described in the IC module couples；

The voltage detecting end (OVP ends) of the IC modules connects the first resistor with the tie point of the second resistance to sample Magnitude of voltage；

IC modules control MOS switch conducting when the magnitude of voltage is located at predetermined interval, so that the LED module is sent out Light.

3. LED daylight lamp as claimed in claim 1, it is characterised in that：The control module is the IC moulds of built-in MOS switch Block, the IC modules control the LED daylight lamp to be operated in constant current mode or current adjustment section pattern according to sampled signal.

4. LED daylight lamp as claimed in claim 3, it is characterised in that：The IC modules include：Chip power supply end, ground connection End, the whole triggering end of current adjustment (CS ends) and MOSFET drain electrode ends built in two (DRN ends), constant current mode triggering end (STP End)；The chip power supply end is coupled with the chip power supply branch road, MOSFET drain electrode ends built in described two and the LED module Coupling；

The sampling unit includes the 3rd resistor (2592) and the 4th resistance (2593) of series connection, and the 5th resistance connected And the 6th resistance (2595) (2594)；

The constant current mode triggering end couples the tie point of the 3rd resistor (2592) and the 4th resistance (2593), to sample State the first voltage value of the tie point of 3rd resistor (2592) and the 4th resistance (2593)；

The tie point of 5th resistance (2594) and the 6th resistance (2595) is electrically connected with the electricity through the 7th resistance (2596) The adjustable triggering end of stream, is provided with the first electric capacity between the whole triggering end of current adjustment and the output end of the rectification unit (2597)；The whole triggering end of the current adjustment sample the 5th resistance (2594) and the 6th resistance (2595) tie point the Two magnitudes of voltage；

The IC modules control LED module work under constant current mode when the first voltage value is located at the first predetermined interval Make, control the LED module to be worked under current adjustment section pattern when the second voltage value is located at the second predetermined interval.

5. LED daylight lamp as claimed in claim 1, it is characterised in that：The branch road of at least one LED element formation is also gone here and there It is associated with the inductance (635) for suppressing current break；The inductance (635) is arranged at the power module.

6. LED daylight lamp as claimed in claim 5, it is characterised in that：The inductance (635) is parallel with diode (634)；Institute State the polarity and the opposite polarity of the branch road of at least one described LED element formation of diode (634)；The diode (634) It is arranged at the power module.

7. LED daylight lamp as claimed in claim 1, it is characterised in that：The branch road of at least one LED element formation is also simultaneously It is associated with electric capacity (633)；The electric capacity (633) is arranged at the lamp plate or the power module.

8. LED daylight lamp as claimed in claim 7, it is characterised in that：The electric capacity (633), which is also parallel with, prevents the LED The resistance of element flicker；The resistance is arranged at the lamp plate.

9. LED daylight lamp as claimed in claim 2, it is characterised in that：MOS switch (3591) triode in parallel (3592), the triode (3592) is shunted when flowing through the electric current of MOS switch (3591) beyond the threshold value of setting；It is described Triode is arranged at the power module.

10. LED daylight lamp as claimed in claim 9, it is characterised in that：The base stage of the triode (3592) and transmitting interpolar Provided with the 9th resistance (3593)；The electric current of the LED element outflow is through the MOS switch (3591), the 9th resistance (3593) shape Into loop；When the pressure drop that the electric current flows through the formation of the 9th resistance (3593) reaches the conducting voltages of the triode (3592), Triode (3592) conducting, so that what portion of electrical current flowed out after the triode (3592) with the 9th resistance (3593) Electric current forms loop behind interflow.

11. LED daylight lamp as claimed in claim 1, it is characterised in that：Also include the simulation lamp for being arranged at the power module Silk circuit (570), the simulation heater chain (570) couples the rectification circuit；The simulation heater chain (570) includes string The tenth resistance (573) and the 11st resistance (574) of connection and the 4th electric capacity (571) and the 5th electric capacity (572) of series connection, institute State the tenth resistance (573) and the 4th electric capacity (571) described in the tie point coupling of the 11st resistance (574) and the 5th electric capacity (572) Tie point.