CN206386705U - A kind of LED straight lamps - Google Patents

A kind of LED straight lamps Download PDF

Info

Publication number
CN206386705U
CN206386705U CN201621344288.5U CN201621344288U CN206386705U CN 206386705 U CN206386705 U CN 206386705U CN 201621344288 U CN201621344288 U CN 201621344288U CN 206386705 U CN206386705 U CN 206386705U
Authority
CN
China
Prior art keywords
circuit
led
signal
module
power supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201621344288.5U
Other languages
Chinese (zh)
Inventor
熊爱明
刘新通
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Super Lighting Electric Appliance Co Ltd
Original Assignee
Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN201621470749.3U priority Critical patent/CN206908890U/en
Priority to CN201720031416.9U priority patent/CN207011031U/en
Priority to CN201720871663.XU priority patent/CN208107667U/en
Priority to CN201720300371.0U priority patent/CN207122778U/en
Priority to CN201720491686.8U priority patent/CN207124784U/en
Priority to CN201720873163.XU priority patent/CN207460540U/en
Priority to CN201720344510.XU priority patent/CN207005797U/en
Priority to CN201720873817.9U priority patent/CN207369353U/en
Application filed by Jiaxing Super Lighting Electric Appliance Co Ltd filed Critical Jiaxing Super Lighting Electric Appliance Co Ltd
Priority to CN201720188642.8U priority patent/CN206904652U/en
Priority to CN201720032880.XU priority patent/CN206908891U/en
Application granted granted Critical
Publication of CN206386705U publication Critical patent/CN206386705U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

The utility model discloses a kind of LED straight lamps, light source pad is provided with comprising being provided with the lamp plate of LED/light source and being provided with the power supply circuit board of power supply, the lamp plate, hole is provided with the light source pad；It is provided with the power supply circuit board on power pad, the power pad and is provided with hole；The light source pad is docked and welded together with the power pad.According to the technical solution of the utility model, lamp plate and power supply circuit board are connected using the mode of welding, it is more solid and reliable compared to the mode that wire is connected；Further, on lamp plate and hole on pad, the pad of power supply circuit board is set respectively on power supply circuit board, so that scolding tin can penetrate into hole to form more firm connection in welding.Automation line is can apply to simultaneously carries out large-scale production.

Description

A kind of LED straight lamps
Technical field
The utility model is related to field of lighting appliances, and in particular to a kind of LED straight lamps.
Background technology
LED illumination technology is positive fast-developing and instead of traditional incandescent lamp and fluorescent lamp.Compared to being filled with indifferent gas For the fluorescent lamp of body and mercury, LED straight lamps need not filling mercury.Therefore, various by seeming traditional fluorescent bulbs and lamp In family expenses or the illuminator of workplace that the illumination option such as pipe is dominated, LED straight lamps are it is hardly surprising that be increasingly becoming people Height expect illumination option.The advantage of LED straight lamps is comprising the durability and life-span lifted and compared with low power consuming.Therefore, Consider after all factors, LED straight lamps will be increasingly widely applied.
Known LED straight lamps generally comprise fluorescent tube, in fluorescent tube and the circuit board with light source, and located at fluorescent tube two Power supply is provided with the lamp holder at end, lamp holder, is electrically connected between light source and power supply by circuit board.However, existing LED is straight Spot has a few class problems to need solution in making and application, for example
1：Circuit board is generally rigid plate, after fluorescent tube ruptures, especially when partial fracture, whole LED straight lamp The state of straight tube is remained in, user, which can be mistakenly considered fluorescent tube, to be used, so as to go voluntarily to install, be easily caused and leak electricity And electric shock accidents.Applicant is in previous case, such as CN105465640, it is proposed that corresponding structural improvement mode.
2：Light source is arranged on lamp plate, and lamp plate needs physically to be connected with power supply, such power supply could stablize for light source Driving electric power is provided.Need to consider during connection connection fastness, the convenience of manufacture processing and the yield of product and Quality stability.Lamp plate uses bendable circuit soft board, and the soft board generally utilizes polyimide layer (Polyimide, PI), as Basic unit, the basic unit has the effect of protection circuit, but it is difficult heat conduction, and such as applicant is in previous case CN105472836A In disclose the scheme that a kind of bendable circuit soft board is placed on power supply circuit board upper weld, (weld is from upper for power supply circuit board Bendable circuit soft board, power supply circuit board are followed successively by under secondary) welding when, bendable circuit soft board rides over the predetermined of power supply circuit board Weld while craft or bonding machine are carried out at pad, when this mode is deployed on the production line of the mechanical hand of automation, encounter Bottleneck on a little yields.
3：Generally according to the application type of LED straight lamps, it is divided into two classes, a class is：Town road device replaceability is direct replaces The incandescent lamp and fluorescent lamp of existing connection ballast, a class is ballast bypass type, and it is straight to save ballast, i.e. LED on circuit Spot is electrically connected at civil power.Drive signal needed for being worked because of LED straight lamps is direct current signal, but the offer of fluorescent lamp is driven Signal electric power source is moved for low frequency, the civil power of low-voltage ac signal or high frequency, the electric ballast of high-voltage AC signal, and, LED Straight lamp is used for Emergency Light simultaneously, and the electric power source of Emergency Light is battery, or the emergency ballast with energy-storage units Voltage, frequency range drop between the such different driving signal of occasion is big, and not simple progress rectification is compatible.
4：LED straight lamps are ballast bypass type, and sampling both-end enters electricity, and (i.e. power supply is electrically connected at the two of LED straight lamps End) the mode of connection when, if one of both-end of LED straight lamps has inserted lamp socket and other end when not yet inserting lamp socket, If user touches the metal for being not inserted into lamp socket end of LED straight lamps or conductive part, it is possible to occur the wind of electric shock Danger.In previous case, such as CN 205424492, corresponding scheme is proposed to this problem by applicant.
5：When LED straight lamps using both-end enter electricity when (such as 8 Foot 42W can both-end enter electricity LED straight lamps), its two ends lamp A wire must be laid along the lamp plate (such as bendable circuit soft board) in fluorescent tube between head (at least each pin) (to be referred to as Line or Neutral) it is used to receive external drive voltage.This wire Line is different from fluorescent tube the positive and negative of (1) and LED unit The LED+ lines and LED- lines and (2) ground wire (Ground) of pole connection.But because this wire Line passes by lamp plate, and and The close parasitic capacitance (such as about 200PF) for causing to exist between this both threads that LED+ lines are leaned on, so wire Line holds It is also easy to produce or by electromagnetic interference (EMI) influence, causing the conduction of power supply becomes very poor.
In view of above mentioned problem, the utility model set forth below and embodiment.
The content of the invention
Many embodiments of the summary description herein on " the utility model ".But the vocabulary " the utility model " is only For some embodiments (in spite of in claim) for describing to disclose in this description, rather than it is possible to Embodiment complete description.Some embodiments of each feature or aspect for being described below as " the utility model " can not It is independent or merge to form a LED straight lamps or a portion with mode.
To solve the above problems, and continue the improvement CN106015996 that submits a little earlier of applicant, the utility model proposes with Lower technical scheme：
A kind of LED straight lamps, the lamp plate of LED/light source and the power supply circuit board of power supply, the lamp are provided with comprising being provided with Light source pad is provided with plate；It is provided with the power supply circuit board on power pad, the power pad and is provided with hole；It is described Light source pad is with the power pad by being welded to connect；The power pad of the power supply circuit board is located at the light source of the lamp plate The top of pad, by welding the power supply circuit board and the lamp plate electrical communication.
Alternatively, the lamp plate is made up of sandwich circuit layer and one dielectric layer, and the Surface coating of the line layer has One layer has the ink material of welding resistance and the function of increase reflection as protective layer, and the protective layer is provided with opening, makes described LED/light source can be electrically connected with the line layer.
Alternatively, the dielectric layer also has one layer of cladding to have the ink material of welding resistance and the function of increase reflection as guarantor Sheath.
Alternatively, there is no opening on the protective layer of cladding dielectric layer.
Alternatively, the thickness for the tin that the power pad is set is 0.3~0.5mm.
Alternatively, the pad being provided with the lamp plate is provided with reach through hole, the break-through bore dia between 1~ 2mm。
Alternatively, the described hole that each power pad of power supply circuit board described in side is set is multiple.
Alternatively, described hole is 2,3,5,7 or 9.
Alternatively, it is in zigzag in LED straight lamps after the lamp plate is connected with the power supply circuit board.
Alternatively, the first relative face of the power supply circuit board is respectively formed with the power supply corresponded to each other with the second face and welded Disk, and the power supply circuit board is located at lamp plate top.
Alternatively, the light source pad is 2, and the lamp plate between the light source pad has breach；The power supply circuit board The first relative face and the second face be respectively formed with the power pad corresponded to each other, per simultaneously there is 2 pads, 2 pads Between power supply circuit board there is breach；The power supply circuit board is located above the lamp plate, and two breach overlap So as to form the through hole of lamp plate described in insertion and the power supply circuit board.
A kind of rectification circuit in LED straight lamps, the LED straight lamps have first to fourth pin, the rectified current Road includes：The bridge rectifier being made up of 4 commutation diodes is complete for being carried out to the rectification circuit received signal Ripple rectification；The the first rectification input and the second rectification input of the bridge rectifier respectively with the LED straight lamps First pin and the coupling of the second pin；5th commutation diode and the 6th commutation diode；Wherein the 5th commutation diode is just Pole couples the second rectification output end of the bridge rectifier, and negative pole couples the 3rd pin of the LED straight lamps；6th is whole The 3rd pin that diode cathode couples the LED straight lamps is flowed, the first rectification that negative pole couples the bridge rectifier is defeated Go out end.
Alternatively, in addition to the first fuse and the second fuse；First fuse is connected on the LED straight lamps The first pin and the bridge rectifier the first rectification input between；Second fuse is connected on the LED Between second pin of straight lamp and the second rectification input of the bridge rectifier.
Alternatively, the bridge rectifier includes the first commutation diode, the second commutation diode, the pole of the 3rd rectification two Pipe and the 4th commutation diode, wherein：First commutation diode positive pole couples second rectification output end, negative pole coupling Second pin；Second commutation diode positive pole couples second rectification output end, and negative pole couples first pin；The Three commutation diode positive poles couple second pin, and negative pole couples first rectification output end；4th commutation diode is just Pole couples first pin, and negative pole couples first rectification output end.
A kind of LED straight lamps that the utility model is provided include the rectification circuit in above-mentioned LED straight lamps, and：Institute State and connect conductive material between the 3rd pin of LED straight lamps and the 4th pin, connect in the 3rd pin with the 4th pin mistake Enter it is single-ended enter electricity lamp socket when, the conductive material can fuse.
Alternatively, the conductive material is thin wire.
A kind of circuit for installing detecting module, is configured in a LED straight lamps, for detecting the LED straight lamps and lamp socket Installment state, the circuit of the installation detecting module includes a pulse generation auxiliary circuit, an integrated control module, a switch Circuit and a detection judge auxiliary circuit, wherein：The integrated control module is used to produce control signal, and for root The installment state of the LED straight lamps and the lamp socket is judged according to sampled signal；The on-off circuit and the integrated control mould Block is connected, and for receiving the control signal, and is reacted on the control signal of enable and is turned on, makes the LED straight lamps Electric power loop conducting；The pulse generation auxiliary circuit is connected with the integrated control module, to aid in the integrated control Molding block produces the control signal；The detection judges auxiliary circuit and the on-off circuit and the integrated control module Connection, for detecting the sampled signal on the electric power loop and sending first sampled signal to described integrated Control module.
Alternatively, the integrated control module has first input end and the second input, wherein first input end and institute The output end connection of pulse generation auxiliary circuit is stated, the second input judges the sampled signal of auxiliary circuit with the detection Output end connection；The integrated control module is additionally operable to according to signal received on the first input end, at one section There is the control signal of an at least pulse briefly to turn on the on-off circuit for output in reconnaissance phase, and in this section In reconnaissance phase, detect whether the LED straight lamps are correct according to the sampled signal of second input reception Be attached in lamp socket and latch testing result, using as whether turned on after the reconnaissance phase terminates on-off circuit according to According to.
Alternatively, the integrated control module includes impulse generating unit, testing result latch units and detection list Member, wherein：The impulse generating unit is used to receive the letter that the pulse generation auxiliary circuit is provided from its first input end Number, and an at least pulse signal is produced according to this；The testing result latch units couple the impulse generating unit with it is described Detection unit, in the reconnaissance phase, regarding the pulse signal produced by the impulse generating unit as control signal There is provided to the output end of the integrated control module；And it is additionally operable to the testing result signal lock that the detection unit is provided Deposit, and provided after the reconnaissance phase to the output end of the integrated control module, used according to the LED straight lamps Whether installment state correctly decides whether to turn on the on-off circuit；The detection unit couples testing result latch units, Judge the signal that auxiliary circuit is provided for receiving the detection from second input, and it is described to produce instruction according to this The testing result signal whether LED straight lamps are properly installed, and the testing result signal is supplied to the testing result Latch units.
Alternatively, the impulse generating unit is schmitt trigger.
Alternatively, the testing result latch units include D flip-flop and OR gate, wherein：The D flip-flop tool There are a data input pin, a frequency input and an output end, data input pin connection driving voltage, the frequency input connects Connect the detection unit；The OR gate has first input end, the second input and an output end, and the first input end connects The impulse generating unit is connect, second input connects the output end of the D flip-flop, and the output end of the OR gate connects Connect the output end of the integrated control module.
Alternatively, the detection unit is comparator, and the comparator has first input end, the second input and defeated Go out end, the first input end connects a setting signal, and second input connects the input of the integrated control module, and should The output end of comparator connects the testing result latch units.
Alternatively, the pulse generation auxiliary circuit includes first resistor, second resistance and 3rd resistor, and wraps Containing electric capacity, transistor and Zener diode, wherein：The first resistor first end connects driving voltage；The electric capacity first End connection first resistor second end, the second end ground connection；Second resistance first end connection first resistor second end；The crystal Pipe has base terminal, collector terminal and emitter-base bandgap grading end；Collector terminal connection second resistance second end, emitter-base bandgap grading end ground connection；The 3rd resistor First end connection transistor base end, the second end is connected to the output end of the integrated control module；The Zener diode tool There are anode tap and cathode terminal, anode tap ground connection, cathode terminal connection electric capacity first end.
Alternatively, the detection judges that auxiliary circuit includes first resistor 2872, second resistance 2873 and 3rd resistor 2874th, electric capacity 2875 and diode 2876, wherein：The first end of first resistor 2872 connects the on-off circuit, second Second end of the electric power loop of the end connection LED straight lamps；The first end of second resistance 2873 connects a driving voltage end； The first end of 3rd resistor 2874 connection second resistance 2,873 second end, and it is connected to the of the integrated control module 2860 Two inputs, and the second end ground connection of 3rd resistor 2874；The electric capacity 2875 is in parallel with 3rd resistor 2874；The diode 2876 anode tap connects the first end of first resistor 2872, cathode terminal connection second resistance 2,873 second end.
Alternatively, the detection judges that auxiliary circuit is the two or more resistance of a resistance or parallel connection.
Alternatively, the on-off circuit is transistor or FET, the electric power loop for controlling the LED straight lamps First end and the detection judge auxiliary circuit between break-make.
A kind of circuit for installing detecting module, is configured in LED straight lamps, for detecting the LED straight lamps and lamp socket Installment state, the circuit of the installation detecting module include signal processing unit, signal generation unit, signal gathering unit, with And switch element, wherein：The signal processing unit is used for according to the signal generation unit and the signal gathering unit institute The signal of offer, the control signal with impulse waveform is exported in reconnaissance phase, and output maintains height after reconnaissance phase The control signal of voltage quasi position or low voltage level, to control the conducting state of the switch element；The signal generation unit For when receiving driving voltage, producing pulse signal to the signal processing unit；The signal gathering unit is used to take Electric signal on the electric power loop of sample LED straight lamps, and detect according to the signal being sampled to the installation shape of LED straight lamps State, then the testing result signal for indicating testing result is transmitted to the signal processing unit and handled；The switch element is used In the control signal provided according to the signal processing unit, decide whether to turn on the electric power loop of LED straight lamps.
Alternatively, the circuit for installing detecting module also includes internal electric source detecting unit, is produced with the signal single Member connection, the internal electric source detecting unit includes clamp circuit, generating circuit from reference voltage, voltage-regulating circuit and history Schmitt trigger, wherein：The clamp circuit is respectively coupled to the power supply of the installation detecting module with the voltage-regulating circuit End, to receive driving voltage, uses and carries out the action that voltage clamp is adjusted with voltage to the driving voltage respectively；Reference voltage is produced Raw circuit couples the voltage-regulating circuit, to produce a reference voltage to the voltage-regulating circuit；The Shi Mite is touched Hair utensil has input and output end, and its input couples the clamp circuit and the voltage-regulating circuit, output end output Driving voltage to indicate the driving voltage whether a power supply confirmation signal of regular supply.
Alternatively, the signal processing unit includes driver, OR gate and D flip-flop, wherein：The driver With input and output end, the output end connects the switch element, uses and supply control signals to the switch element； The OR gate has first input end, the second input and output end, and the first input end connects the signal generation unit, The output end couples the input of the driver；The D flip-flop has data input pin, frequency input and output End, the data input pin receives driving voltage, and the frequency input is connected to the signal gathering unit, output end coupling institute State the second input of OR gate.
Alternatively, the signal generation unit includes first resistor and second resistance, electric capacity, switch and comparator, its In：The first resistor first end is connected to the internal electric source detecting unit, use receive it is adjusted after the driving electricity Pressure；First resistor, second resistance and capacitance series are between the driving voltage and earth terminal；The switch and the electric capacity It is in parallel；The comparator has first input end, the second input and an output end, first input end coupling first resistor with Second connection end, second input receives a reference voltage, and the output end couples the control end of the switch.
Alternatively, the signal gathering unit includes OR gate and first comparator and the second comparator, wherein：It is described or Door has first input end, the second input and output end, and the output end is connected to the signal processing unit；First compares The first input end of device is connected on the electric power loop of the LED straight lamps, and the second input receives the first reference voltage, output The first input end of the end coupling OR gate；The first input end of second comparator receives the second reference voltage, the second input Couple the first input end of the first comparator, and the second input of the output end coupling OR gate of the second comparator End.
Alternatively, the switch element includes transistor, and the transistor has gate terminal, drain electrode end and source terminal；Gate End is connected to the signal processing unit, and drain electrode end and source terminal are series in the electric power loop of the LED straight lamps.
Alternatively, the circuit for installing detecting module is the switch control chip at three ends, wherein there is three pin positions It is power end, the first switch terminal and the second switch terminal respectively, wherein：The power end is used to receive driving voltage；Described One switch terminal and installation sense terminal of second switch terminal respectively as the circuit of the installation detecting module.
A kind of circuit for installing detecting module, is configured in LED straight lamps, for detecting the LED straight lamps and lamp socket Installment state, the installation detecting module includes on-off circuit, detection pulse generating module, control circuit, detection decision circuit And detection path circuit, wherein：The detection decision circuit coupling detection path circuit, to detect on detection path circuit Signal；Detection decision circuit is also coupled to control circuit, and testing result signal is sent into testing result latch cicuit；Detect arteries and veins Module couples detection path circuit occurs for punching, and produces pulse signal to notify the opportunity in detection path circuit conduction detection path Point；Control circuit according to testing result signal latch testing result, couple on-off circuit, testing result is transmitted or is reflected into On-off circuit；On-off circuit is according to testing result, and decision makes to turn between the first installation sense terminal and the second installation sense terminal Or cut-off.
Alternatively, it is described detection pulse generating module comprising the first electric capacity, the second electric capacity and the 3rd electric capacity, first resistor, Second resistance and 3rd resistor, the first buffer and the second buffer, reverser, the first diode and the first OR gate, wherein： First electric capacity and first resistor are series between a driving voltage and reference potential, and its tie point couples the input of buffer； Second resistance is coupled to the input of a driving voltage and reverser；3rd resistor is coupled to the input and one of the second buffer Between reference potential；The positive ending grounding of first diode, negative terminal is also coupled to the input of the second buffer；One end of second electric capacity And the 3rd electric capacity one end the first buffer of coupling jointly output end, the other end of the second electric capacity connects the input of reverser, And the other end of the 3rd electric capacity then couples the input of the second buffer；The output end of the output end of reverser and the second buffer Couple the input of OR gate.
Alternatively, the detection pulse generating module includes：6th resistance, one end connects a driving voltage；4th electric capacity, One end connects the other end of the 6th resistance, and the other end ground connection of the 4th electric capacity；Schmitt trigger, with an input and one Output end, the input connects the connection end of the 6th resistance and the 4th electric capacity, and the output end connects the detection path circuit；The Seven resistance, one end connects the connection end of the 6th resistance and the 4th electric capacity；Second transistor, with a base terminal, a collector terminal with One emitter-base bandgap grading end, the collector terminal connects the other end of the 7th resistance, emitter-base bandgap grading end ground connection；8th resistance, one end connects the second crystal The base terminal of pipe, and the output end of the other end connecting detection path circuit of the 8th resistance and the control circuit；The pole of Zener two Pipe, with an anode tap and a cathode terminal, anode tap ground connection, the cathode terminal connects one that the 4th electric capacity is connected with the 6th resistance End.
Alternatively, the drive circuit in the power module of the LED straight lamps be switching dc to direct current transducer, and And the on-off circuit is the power switch of DC-DC converter, and the control circuit is the correspondence power switch Controller.
Alternatively, the detection decision circuit includes comparator, and the end of oppisite phase of the comparator, which is received, refers to level signal, just Input is connected to the detection path circuit, and output end is connected to the control circuit.
Alternatively, the detection decision circuit includes：Second diode, with an anode tap and a cathode terminal, the anode End is connected to the detection path circuit；Second comparator, with first input end, the second input and output end, this first Input connects a setting signal, and second input connects the cathode terminal of the second diode, and the output end of the second comparator It is connected to control circuit；3rd comparator, with first input end, the second input and output end, first input end connection The cathode terminal of second diode, second input connects another setting signal, and the output end of the 3rd comparator is connected to control Circuit processed；Tenth resistance, one end connection driving voltage；11st resistance, one end connects the other end and the second ratio of the tenth resistance The other end compared with the second input of device, and the 11st resistance is grounded；5th electric capacity, with the 11st resistor coupled in parallel.
Alternatively, the on-off circuit include a transistor, its base terminal with it is described control circuit be connected, collector terminal with penetrate It is extreme to connect the first installation sense terminal and the second installation sense terminal respectively.
Alternatively, the detection path circuit includes transistor and the 12nd resistance and the 13rd resistance, wherein：The crystalline substance Body pipe has base stage, collector and emitter-base bandgap grading, and emitter-base bandgap grading connects the detection pulse generating module；12nd resistance concatenates the transistor Between emitter-base bandgap grading and earth terminal, the 13rd resistance is serially connected between the collector of the transistor and the first installation sense terminal.
A kind of circuit for installing detecting module, is configured in LED straight lamps, for detecting the LED straight lamps and lamp socket Installment state, the installation detecting module includes detecting pulse generating module, testing result latch cicuit, on-off circuit and inspection Decision circuit is surveyed, wherein：The detecting pulse generating module is electrically connected with the testing result latch cicuit, to produce at least One pulse signal；And the output of the testing result latch cicuit is electrically connected with, the time of control disabling pulse signal is used； The testing result latch cicuit is electrically connected with the on-off circuit, is exported to receive and export detecting pulse generating module Pulse signal；One end of LED straight lamp electric power loops and the detection decision circuit is electrically connected in the on-off circuit, To receive pulse signal that the testing result latch cicuit exported and be turned on during this pulse signal so that LED is straight Spot electric power loop is turned on；The on-off circuit, LED straight lamp electric power loops is electrically connected in the detection decision circuit The other end and the testing result latch cicuit, when on-off circuit and LED power loop are turned on, to detect electric power loop On sampled signal to judge the installment state of LED straight lamps and lamp socket.
Alternatively, the detecting pulse generating module is included：6th resistance, one end connects a driving voltage；4th electric capacity, One end connects the other end of the 6th resistance, and the other end ground connection of the 4th electric capacity；Schmitt trigger, with an input and one Output end, the input connects the connection end of the 6th resistance and the 4th electric capacity, and the output end connects the testing result and latches electricity Road；7th resistance, one end connects the connection end of the 6th resistance and the 4th electric capacity；Second transistor, with a base terminal, a collector End and an emitter-base bandgap grading end, the collector terminal connect the other end of the 7th resistance, emitter-base bandgap grading end ground connection；8th resistance, one end connection second The base terminal of transistor, the other end connects the testing result latch cicuit and on-off circuit；Zener diode, with an anode End and a cathode terminal, anode tap ground connection, cathode terminal connect one end that the 4th electric capacity is connected with the 6th resistance.
Alternatively, the testing result latch cicuit is included：Second D flip-flop, with a data input pin, a frequency Input and an output end, the data input pin connect the driving voltage, and the frequency input connects the detection decision circuit； 3rd OR gate, with a first input end, one second input and an output end, the first input end connects the Shi Mite and touched The output end of device is sent out, second input connects the output end of the second D flip-flop, and the output end connection of the 3rd OR gate is described The other end of resistance and the on-off circuit.
Alternatively, the on-off circuit includes：Third transistor, should with a base terminal, a collector terminal and an emitter-base bandgap grading end Base terminal connects the output end of the 3rd OR gate, the one end in collector terminal connection LED power loop, the emitter-base bandgap grading end connection detection Decision circuit.
Alternatively, the detection decision circuit includes：9th resistance, the emitter-base bandgap grading end of one end connection third transistor, and the The other end in the other end connection LED power loop of nine resistance；Second diode, with an anode tap and a cathode terminal, the sun One end of the 9th resistance of extreme connection；Second comparator, should with a first input end, one second input and an output end First input end connects a setting signal, and second input connects the cathode terminal of the second diode, and the second comparator is defeated Go out the frequency input of the second D flip-flop of end connection；3rd comparator, with a first input end, one second input with One output end, the cathode terminal of the first input end the second diode of connection, another setting signal of second input connection, and the The output end of three comparators connects the frequency input of the second D flip-flop；Tenth resistance, one end connection driving voltage；Tenth One resistance, one end connects the other end of the tenth resistance and the second input of the second comparator, other end ground connection；5th electric capacity, With the 11st resistor coupled in parallel.
According to the technical solution of the utility model, lamp plate and power supply circuit board are connected using the mode of welding, compared to The mode of wire connection is more solid and reliable；Further, pad, power supply electricity are set respectively on lamp plate and on power supply circuit board The pad of road plate is provided with several holes (through hole), so that lamp plate is located at the downside of power supply circuit board, heat warp in welding Conducted by power supply circuit board to lamp plate, such part scolding tin can penetrate into hole to form more firm connection.
In addition, according to the technical solution of the utility model, improve outer by way of to lamp plate and power circuit plate weld, The improvement carried out to circuit topology so that when the drive signal of LED straight lamps is low frequency, the civil power of low-voltage ac signal, both The occasion of single-ended wiring is can apply to, the occasion of both-end wiring is can also apply to.The occasion of emergency lighting can also be used for.Using With reference to the installation detecting module configured in LED straight lamps when the occasion of both-end wiring, the risk got an electric shock is reduced.
According to the technical solution of the utility model, detecting module is installed by being configured in LED straight lamps, passes through scheme Optimization reduces the volume for installing detecting module, or can be greatly enhanced the precision that detection judges, one or both has concurrently, And then reduce the risk for occurring electric shock (leakage current).
The utility model more have above-mentioned non-usual optional mode have further effect hereinafter in conjunction with Embodiment is illustrated.
Brief description of the drawings
Fig. 1 is a section plan, and the lamp plate for showing the LED straight lamps of the utility model embodiment is bendable circuit Soft board and its end gets over the transition part of fluorescent tube and is welded to connect with the output end of power supply；
Fig. 2 is a section plan, shows that the bendable circuit of the lamp plate of the utility model embodiment LED straight lamps is soft Plate has double-decker；
Fig. 3 A are a stereograms, show the bendable circuit soft board of the lamp plate of the utility model embodiment LED straight lamps The pad being welded to connect with the printed circuit board (PCB) with power supply；
Fig. 3 B are what is set according to the LED straight lamps of the utility model embodiment between its two ends lamp holder along lamp plate Wire schematic diagram；
Fig. 4 A are the lamp plate of the utility model embodiment and the welded partial schematic diagram of power supply；
Fig. 4 B to Fig. 4 D be the utility model embodiment lamp plate and power supply welding process schematic diagram；
Fig. 5 is a stereogram, show the utility model embodiment LED straight lamps lamp plate bendable circuit soft board with The printed circuit board (PCB) of power supply is combined into a circuit board assemblies；
Fig. 6 is a stereogram, shows another configuration of Fig. 5 circuit board assemblies；
Fig. 7 is a stereogram, in display the utility model embodiment, the double-deck circuit of bendable circuit soft board tool of lamp plate Layer；
Fig. 8 A are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Fig. 8 B are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Fig. 8 C are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Fig. 8 D are the circuit box schematic diagram of the LED according to the utility model embodiment；
Fig. 8 E are the circuit box schematic diagram of the LED according to the utility model embodiment；
Fig. 8 F are the circuit box schematic diagram of the LED according to the utility model embodiment；
Fig. 8 G are the circuit box schematic diagram being connected according to the LED straight lamps of a preferred embodiment with external power source；
Fig. 9 A are the circuit diagram of the rectification circuit according to the utility model embodiment；
Fig. 9 B are the circuit diagram of the rectification circuit according to the utility model embodiment；
Fig. 9 C are the circuit diagram of the rectification circuit according to the utility model embodiment；
Fig. 9 D are the circuit diagram of the rectification circuit according to the utility model embodiment；
Fig. 9 E are the circuit diagram of the rectification circuit according to the utility model embodiment；
Fig. 9 F are the circuit diagram of the rectification circuit according to the utility model embodiment；
Figure 10 A are the circuit box schematic diagram of the filter circuit according to the utility model embodiment；
Figure 10 B are the circuit diagram of the filter unit according to the utility model embodiment；
Figure 10 C are the circuit diagram of the filter unit according to the utility model embodiment；
Figure 11 A are the circuit diagram of the LED module according to the utility model embodiment；
Figure 11 B are the circuit diagram of the LED module according to the utility model embodiment；
Figure 11 C are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 D are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 E are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 F are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 G are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 H are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 I are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 11 J are the circuit diagram of the power pad according to the utility model embodiment embodiment；
Figure 11 K are the cabling schematic diagram of the LED module according to the utility model embodiment；
Figure 12 A are the application circuit block schematic diagram of the power supply module of the LED according to the utility model embodiment；
Figure 12 B are the circuit box schematic diagram of the drive circuit according to the utility model embodiment；
Figure 12 C are the circuit diagram of the drive circuit according to the utility model embodiment；
Figure 12 D are the circuit diagram of the drive circuit according to the utility model embodiment；
Figure 12 E are the circuit diagram of the drive circuit according to the utility model embodiment；
Figure 12 F are the circuit diagram of the drive circuit according to the utility model embodiment；
Figure 13 A are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 13 B are the circuit diagram of the overvoltage crowbar according to the utility model embodiment；
Figure 14 A are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 14 B are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 14 C are the circuit diagram of the auxiliary power module according to the utility model embodiment；
Figure 14 D are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 14 E are the configuration schematic diagram in LED straight lamps according to the auxiliary power module of the utility model embodiment；
Figure 14 F are the configuration schematic diagram in lamp socket according to the auxiliary power module of the utility model embodiment；
Figure 14 G are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 15 A are that the application circuit square of the power supply module of the LED straight lamps according to the utility model embodiment is illustrated Figure；
Figure 15 B are the circuit diagram of the installation detecting module according to the utility model embodiment；
Figure 15 C are the circuit diagram of the detection pulse generating module according to the utility model embodiment；
Figure 15 D are the circuit diagram of the detection decision circuit according to the utility model embodiment；
Figure 15 E are the circuit diagram of the testing result latch cicuit according to the utility model embodiment；
Figure 15 F are the circuit diagram of the on-off circuit according to the utility model embodiment；
Figure 15 G are the circuit diagram of the installation detecting module according to the utility model embodiment；
Figure 15 H are the circuit diagram of the detection pulse generating module according to the utility model embodiment；
Figure 15 I are the circuit diagram of the detection decision circuit according to the utility model embodiment；
Figure 15 J are the circuit diagram of the testing result latch cicuit according to the utility model embodiment；
Figure 15 K are the circuit diagram of the on-off circuit according to the utility model embodiment；
Figure 15 L are the circuit diagram of the installation detecting module according to the utility model embodiment；
Figure 15 M are the internal circuit blocks schematic diagram of the integrated control module according to the utility model embodiment；
Figure 15 N are the circuit diagram of the pulse generation auxiliary circuit according to the utility model embodiment；
Figure 15 O are the circuit diagram that auxiliary circuit is judged according to the detection of the utility model embodiment；
Figure 15 P are the circuit diagram of the on-off circuit according to the utility model embodiment；
Figure 15 Q are the internal circuit blocks schematic diagram of the trigistor according to the utility model embodiment；
Figure 15 R are the circuit diagram of the signal processing unit according to the utility model embodiment；
Figure 15 S are the circuit diagram of the signal generation unit according to the utility model embodiment；
Figure 15 T are the circuit diagram of the signal gathering unit according to the utility model embodiment；
Figure 15 U are the circuit diagram of the switch element according to the utility model embodiment；And
Figure 15 V are the circuit diagram of the internal electric source detecting unit according to the utility model embodiment；
Figure 15 W are the circuit diagram of the installation detecting module according to the utility model embodiment；And
Figure 15 X are the circuit diagram of the detecting path circuit according to the utility model embodiment.
Embodiment
The utility model is on the basis of glass lamp, it is proposed that a kind of new LED straight lamps, to solve in background technology The problem of mentioning and above mentioned problem.It is understandable to enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, under Face is described in detail with reference to accompanying drawing to specific embodiment of the utility model.The narration of following each embodiment of the utility model is only It is to be illustration to illustrate, is not meant as whole embodiments of the present utility model or the utility model is limited to specific reality Apply example.
It need to first illustrate in addition, be implemented herein in order to clearly state each utility model feature of this exposure with multiple The mode point of example is described as follows with regard to each embodiment.But do not mean that each embodiment is only capable of independent implementation.It is familiar with the skill of this area Art personnel can together design from be about to feasible implementation example collocation according to demand, or by not be the same as Example can band change According to design requirement, voluntarily band is changed components/modules.In other words, the embodiment that this case is taught is not limited only to described in the following example Aspect, also include in the case of feasible, the band between each embodiment/components/modules is changed and permutation and combination, in this conjunction First chat bright.
Though applicant is in previous case, for example:In CN105465640A, it is proposed that reached using flexible circuit board Into the improvement mode of reduction electric leakage accident, section Example can be combined with present application using circuit mode will more significant Effect.
Fig. 2 is refer to, includes one layer of line layer 2a with conductive effect, light as the bendable circuit soft board of lamp plate 2 Source 202 is connected on line layer 2a by line layer 2a with power sourced electric.Have the line of conductive effect in this description Road floor can be described as conductive layer again.In reference picture 2, the present embodiment, bendable circuit soft board can also include one dielectric layer 2b, with Line layer 2a is stacked, and dielectric layer 2b and line layer 2a area equation or is slightly less than dielectric layer, line layer 2a with dielectric layer Surface opposite 2b is used to set light source 202.Line layer 2a is electrically connected to power supply 5 (referring to Fig. 1) to allow DC current Pass through.Dielectric layer 2b is then adhered on the inner peripheral surface of fluorescent tube 1 on the surface opposite with line layer 2a by bonding agent 4.Wherein, line Road floor 2a can be metal level, or be furnished with the bus plane of wire (such as copper cash).
In other embodiments, line layer 2a and dielectric layer 2b outer surface can respectively coat a circuit protecting layer, described Circuit protecting layer can be a kind of ink material, the function with welding resistance and increase reflection.Or, bendable circuit soft board can be with It is a Rotating fields, i.e., is only made up of sandwich circuit layer 2a, then in line layer 2a Surface coating one layer of above-mentioned ink material Opening can be provided with circuit protecting layer, protective layer so that light source can be electrically connected with line layer.Whether a sandwich circuit layer 2a Structure or two-layer structure (sandwich circuit layer 2a and one dielectric layer 2b) can coupled circuit protective layers.Circuit protecting layer also may be used To be set in a side surface of bendable circuit soft board, for example, circuit protecting layer only is set in the side with light source 202.Need It is noted that bendable circuit soft board is a sandwich circuit Rotating fields 2a or is two-layer structure (sandwich circuit 2a and one layer of dielectric of layer Layer 2b), hence it is evident that pliability and flexibility are had more than general three layers of flexible base board (pressing from both sides one dielectric layer in two sandwich circuits layer), Therefore, can be with being arranged in pairs or groups (for example with special formed fluorescent tube 1:Non- straight lamp), and bendable circuit soft board is close to fluorescent tube 1 On tube wall.In addition, bendable circuit soft board is close to tube wall preferably to configure, and the number of plies of bendable circuit soft board is got over Few, then radiating effect is better, and material cost is lower, more environmentally friendly, and flexible effect also has an opportunity to be lifted.
Certainly, bendable circuit soft board of the present utility model is not limited in one layer or double layer circuit plate, in other implementations In example, bendable circuit soft board includes multilayer line layer 2a and multilayer dielectric layer 2b, and dielectric layer 2b can be handed over sequentially with line layer 2a Mistake is stacked and located at side opposite with light source 202 line layer 2a, and light source 202 leads to located at multilayer line layer 2a most last layer The most last layer for crossing line layer 2a is connected with power sourced electric.In other embodiments, as the bendable circuit soft board of lamp plate 2 Axis projection length is more than the length of fluorescent tube.
Fig. 7 is referred to, in one embodiment, from top to bottom sequentially includes one the as the bendable circuit soft board of lamp plate 2 One line layer 2a, a dielectric layer 2b and one second line layer 2c, the second line layer 2c thickness are more than first line layer 2a thickness Degree, the axis projection length of lamp plate 2 is more than the length of fluorescent tube 1, wherein being not provided with light source 202 in lamp plate 2 and protruding from fluorescent tube 1 In stub area, first line layer 2a and the second line layer 2c is respectively through two electrical communications of through hole 203 and 204, but pass through Perforation 203 and 204 does not connect to avoid short circuit each other.
Thereby mode, because the second line layer 2c thickness is larger, can play support first line layer 2a's and dielectric layer 2b Effect, while being not likely to produce skew when allowing lamp plate 2 to be attached on the inner tubal wall of fluorescent tube 1 or deforming, to lift fine ratio of product.This Outside, first line layer 2a and the second line layer 2c is electrically connected logical so that the circuit layout on first line layer 2a can extend To the second line layer 2c, the circuit layout allowed on lamp plate 2 is more polynary.Furthermore, the circuit location wiring of script becomes from individual layer Line layer monolayer area on bilayer, lamp plate 2, that is, the size on width, can further reduce, allow batch to be pasted The lamp plate quantity of dress light source 202 can increase, and lift productivity ratio.
Further, lamp plate 2 provided with light source 202 and protrude from the first line layer 2a in the stub area of fluorescent tube 1 and Second line layer 2c, also can directly be utilized to realize the circuit layout of power supply module, and allow the directly configuration of power supply module can Scratch and be achieved on formula circuit soft board.
If two ends of the lamp plate 2 along the axial direction of fluorescent tube 1 are not fixed on the inner peripheral surface of fluorescent tube 1, if connected using wire, It is follow-up move during, because two ends are free, easily shaken during follow-up move, thus make it possible to wire It is broken.Therefore the connected mode prioritizing selection of lamp plate 2 and power supply 5 is welding.Specifically, reference picture 1, can be directly by lamp Plate 2 is welded in the output end of power supply 5 after getting over the transition region 103 of strengthening section structure, removes the use of wire from, improves product Stability.
As shown in Figure 3A, the specific practice can be that the output end of power supply 5 is reserved into power pad a, and on power pad a Stay tin, to cause the thickness of the tin on pad to increase, convenient welding accordingly, also reserves light source pad on the end of lamp plate 2 B, and the power pad a of the output end of power supply 5 and lamp plate 2 light source pad b are welded together.By the plane definition where pad For front, then lamp plate 2 is docked with both positive pads with the connected mode of power supply 5 and consolidated the most, but is welded in welding The back side of lamp plate 2 is pressed in for pressure head typical case, comes to heat scolding tin across lamp plate 2, the problem of being easier reliability occur.Such as Fruit in certain embodiments, will output hole, then it is face-up superimposed upon into power supply 5 in the middle of the positive light source pad b of lamp plate 2 Welded on positive power pad a, then weld pressure head directly can heat melting to scolding tin, to being relatively easy on Practical Operation Realize.
As shown in Figure 3A, in above-described embodiment, fluorescent tube 1 is largely fixed on as the bendable circuit soft board of lamp plate 2 On inner peripheral surface, only it is not fixed on the inner peripheral surface of fluorescent tube 1 (referring to Fig. 7) at two ends, is not fixed on the inner peripheral surface of fluorescent tube 1 One freedom portion 21 (referring to Fig. 1 and 7) of formation of lamp plate 2, and lamp plate 2 is fixed on the inner peripheral surface of fluorescent tube 1.Freedom portion 21 has Above-mentioned pad b.In assembling, one end that freedom portion 21 and power supply 5 are welded can drive freedom portion 21 to the internal contraction of fluorescent tube 1. It is worth noting that, when there is the bendable circuit soft board as lamp plate 2 two sandwich circuits layer 2a and 2c to press from both sides a dielectric as shown in Figure 7 During layer 2b structure, foregoing lamp plate 2 is not provided with light source 202 and protrudes from the stub area of fluorescent tube 1 can be as freedom portion 21, and allows Freedom portion 21 realizes the connection of two sandwich circuits layer and the circuit layout of power supply module.
In addition, in the pin design of LED straight lamps, can be each single pin (totally two pins) of both-end, can also be The framework of each pair of pin of both-end (totally four pins).So in the situation of electricity is entered from the both-end of LED straight lamps, can use double Each at least pin in end is typically referred to as Line to receive the wire set between each pin of this both-end of external drive signal Or Neutral wires, and available for the input and transmission of signal.Fig. 3 B are in its two ends lamp according to an embodiment LED straight lamps The wire schematic diagram set between head along lamp plate (such as bendable circuit soft board).Referring to Fig. 3 B, the LED straight lamps of this exposure It may include fluorescent tube, lamp holder (being not depicted in Fig. 3 B), lamp plate 2, short circuit board 253 and inductance 526 in embodiment.The lamp Respectively there is an at least pin at pipe two ends, for receiving external drive voltage.The lamp holder is arranged on the lamp tube ends, and such as Fig. 3 B The shown short circuit board 253 (at least part electronic building brick) in fluorescent tube left end and right-hand member can be respectively in the lamp at the two ends In head.The lamp plate 2 is arranged in the fluorescent tube, and comprising LED module, and the LED module includes LED unit 632.Institute State short circuit board 253 to electrically connect with the lamp plate 2, this electrical connection can be used to connect (such as through pad) comprising first end point (L) Connect an at least pin for the lamp tube ends, second (+or LED+) and the 3rd end points (- or LED-) be respectively used to connect institute State the both positive and negative polarity of LED unit 632, and the 4th end points (GND or ground) is used to connect reference potential alternatively and typically, The reference potential is defined as the ground connection of the power module of the current potential or the 4th end points system on ground for this LED straight lamp Purpose.And the inductance 526 is that is being implemented between the 4th end points for being serially connected in the short circuit board 253 of the lamp tube ends In example, inductance 526 can include such as I-shaped inductance (choke inductor or Dual-Inline-Package inductor)。
In particular, because entering in both-end in the straight lamp design of electricity, may in the lamp holder of two ends each setting unit electricity Source circuit (e.g., from about 21W), so the wire L (being input signal cable) for being set along lamp plate and prolonging Shen is may require that, and this wire L With wire LED+ very close to therefore parasitic capacitance can be produced between the two.The parasitism can be passed through by wire LED+ High-frequency Interference Electric capacity and reflect wire L, and then produce the EMI effects that can be detected.
Therefore, in the present embodiment, gone here and there through between the 4th end points of the short circuit board 253 in the lamp tube ends The configuration of inductance 526 is connect, there can be the characteristic of high impedance in high frequency through inductance 526 to block the signal of High-frequency Interference to return Road, and then the High-frequency Interference on wire LED+ is eliminated, so as to avoid parasitic capacitance reflection to the EMI effects on wire L.Change speech It, the function of inductance 526 is elimination or reduced as aforementioned wire L (along lamp plate 2 between the first end point at two ends) is caused EMI or influenceed by EMI, therefore improve in fluorescent tube power supply signal transmission and (include by wire L, wire LED+ and lead Line LED-) and LED quality.Therefore such LED straight lamps with inductance 526 effectively reduce wire L EMI effects Furthermore, such a LED straight lamps also can comprising install detecting module (be described below and referring to Figure 15), wherein it is described installation detect Survey installment state of the module to detect the LED straight lamps and a lamp socket.
Fig. 5 and Fig. 6 are refer to, in other embodiments, lamp plate 2 and power supply 5 that above-mentioned transmission welding manner is fixed It can be replaced with the circuit board group component 25 for being equipped with power supply module 250.Circuit board group component 25 has a long He of circuit board 251 One short circuit board 253, long circuit board 251 and short circuit board 253 are fitted each other to be fixed through gluing mode, short circuit board 253 In the long adjacent peripheral edges of circuit board 251.There is power supply module 25 on short circuit board 253, power supply is monolithically fabricated.The short material of circuit board 253 The longer circuit board 251 of matter is hard, to reach the effect of Power Support module 250.
Long circuit board 251 can be above-mentioned bendable circuit soft board or flexible base board as lamp plate 2, and with Fig. 2 institutes The line layer 2a shown.The mode of line layer 2a and power supply module 250 electrical connection of lamp plate 2 can have different according to actual use situation Electric connection mode.As shown in figure 5, the circuit that will be electrically connected with power supply module 250 and long circuit board 251 with power supply module 250 Layer 2a is all located at the same side of short circuit board 253, and power supply module 250 is directly electrically connected with long circuit board 251.As shown in fig. 6, The line layer 2a systems being electrically connected with power supply module 250 are located at short circuit board respectively on power supply module 250 and long circuit board 251 253 both sides, power supply module 250 penetrates the line layer 2a electrical connections of too short circuit board 253 and lamp plate 2.
Fig. 4 A to Fig. 4 D are refer to, Fig. 4 A to Fig. 4 D are connected between lamp plate 200 and the power supply circuit board 420 of power supply 400 The schematic diagram of structure and connected mode.In the present embodiment, lamp plate 200 and freedom portion are identical structure, and freedom portion is lamp plate The part for being used for connecting power supply circuit board 420 of 200 opposite end.After the part is connected with power supply circuit board 420, in LED Once " zigzag (as shown in Figure 4 A, in other examples leaf once " S " font), can so improve the freedom of lamp plate in straight lamp The risk for the stripping solder joint that portion triggers in weld, improves the stability of welding, it is to avoid produce the danger of sparking.Lamp plate 200 is Flexible circuit board, and lamp plate 200 includes the circuit layer 200a and circuit protecting layer 200c of stacking.Wherein, circuit layer 200a is remote One side from circuit protecting layer 200c is defined as the first face 2001, one side definition of the circuit protecting layer 200c away from circuit layer 200a For the second face 2002, that is to say, that the first face 2001 and the second face 2002 are two sides relative on lamp plate 200.Multiple LED/light sources 202 are located on the first face 2001 and are electrically connected with circuit layer 200a.Circuit protecting layer 200c be polyimide layer (Polyimide, PI), it is difficult heat conduction, but the effect with protection circuit.First face 2001 of lamp plate 200 has places on pad b, pad b Scolding tin g, and the welding ends of lamp plate 200 has breach f.Power supply circuit board 420 includes power circuit layer 420a, and power supply circuit board 420 definition have relative the first face 421 and the second face 422, and the second face 422, which is located at power supply circuit board 420, has power circuit layer 420a side.The pad a corresponded to each other is respectively formed with the first face 421 and the second face 422 of power supply circuit board 420, is welded Scolding tin g can be formed with disk a.Optimize in terms of as the stable optimization of further welding and automation processing, the present embodiment will Lamp plate 200 is positioned over the lower section (reference picture 4B direction) of power supply circuit board 420, that is to say, that the first face 2001 of lamp plate 200 The second face 422 of power supply circuit board 420 can be connected to.
As shown in Fig. 4 C and Fig. 4 D, when carrying out the welding of lamp plate 200 and power supply circuit board 420, first by the electricity of lamp plate 200 Being positioned in supporting table 42 of road protective layer 200C (the second face 2002 contact supporting table 42 of lamp plate 200), allows power supply circuit board The pad a in 420 the second face 422 is directly fully contacted with the pad b in the first face 2001 of lamp plate 200, then to weld pressure head 41 It is pressed on the weld of lamp plate 200 and power supply circuit board 420.Now, the heat of welding pressure head 41 can pass through power supply circuit board 420 The pad a in the first face 421 is passed directly to the pad b in the first face 2001 of lamp plate 200, and the heat of welding pressure head 41 will not be by The relatively poor circuit protecting layer 200c influences of thermal conductivity, further increase the pad a of lamp plate 200 and power supply circuit board 420 With efficiency and stability of the pad b joints in welding.Meanwhile, the pad b and power circuit in the first face 2001 of lamp plate 200 The pad a in the second face 422 of plate 420 is the welding that is in contact, and the pad in the first face 421 of power supply circuit board 420 does not connect for two The pad (also referred to as weld pad, or power pad) connect, is connected with the pad b of lamp plate respectively.As shown in Figure 4 C, power supply circuit board 420 and lamp plate 200 welded completely by scolding tin g, between dummy line M and N in figure 4 c be power supply circuit board 420, lamp Plate 200 and scolding tin g main attachment portion, be sequentially followed successively by from top to bottom the first face 421 of power supply circuit board 420 pad a, Power circuit layer 420a, the pad a in the second face 422 of power supply circuit board 420, the circuit layer 200a of lamp plate 200, lamp plate 200 Circuit protecting layer 200C.The power supply circuit board 420 and the integrated structure of lamp plate 200 sequentially formed according to this is more stable firm.
In different embodiments, can also be again provided with another layer of circuit protecting layer (PI on circuit layer 200a the first face 2001 Layer), that is, circuit layer 200a can be sandwiched between two-tier circuit protective layer so that circuit layer 200a the first face 2001 also can quilt Circuit protecting layer is protected, and only exposed portion circuit layer 200a (part for being provided with pad b) is used for the weldering with power supply circuit board 420 Disk a connects.Now, the circuit protecting layer on the bottom part meeting contact layer 200a of light source 202 the first face 2001, and Another part then can contact layer 200a.
In addition, using Fig. 4 A to Fig. 4 D design, several holes are set on the pad a of power supply circuit board 420 Hole h (preferably, hole h is multiple, and e.g., 2,3,5,7,9 etc., specifically depending on the area of pad, hole h Or other shapes of through hole) after scolding tin is placed, in automatic welding program, when welding pressure head 41 is pressed downwardly onto automatically During power supply circuit board 420, scolding tin can be pushed into hole h because of this pressure, and automation processing needs are met well.Electricity Each pad a of source circuit plate 420 all sets several holes h, depending on pad a area, hole h quantity can with identical, Can be different.In practical application, power supply circuit board 420 can be made up of two or more modules, be configured in the both sides of lamp plate.
The pad of flexible circuit board configuration is two unconnected pad b (also referred to as weld pad or light source pad), and it is distinguished Electrically connected with the both positive and negative polarity of light source, the size of weld pad is about also to have pad corresponding thereto on 3.5 × 2mm, power supply circuit board Scolding tin is reserved in a, the top of weld pad, and the thickness of scolding tin can be 0.1~0.7mm, and preferred values is that 0.3~0.5mm is more appropriate, with 0.4mm is optimal.An insulating gaps f can be set between two weld pads, it is to avoid two weld pads are during welding because of scolding tin It is welded together and causes electrical short, positioning hole d also can be set at insulating gaps f rear in addition, for allows automatic welding Board can correctly judge pad b correct position.
In other embodiments, the pad a of power supply circuit board hole h diameter can be 1~2mm, preferably 1.2~ 1.8mm, most preferably 1.5mm, too small, the tin of welding is difficult to pass through.As the pad a and flexible circuit board of power supply circuit board Pad b when welding together, the tin of welding can pass through described hole h, then be deposited in cooling above hole h solidifying Knot, forms the ball structure formed by scolding tin g with more than hole h diameters, it seems nail that this ball structure g, which can be played, Function, in addition to being fixed through the tin between pad a and pad b, more can strengthen and electrically connect because of the effect of soldered ball g structures What is connect is firm fixed.
In other embodiments, perforation (structure and pad a hole h classes also can be set in the pad b of flexible circuit board Seemingly, quantity is depending on pad b area, such as 1,2,3,4 etc.), the perforation apart from flexible circuit board Bian Yuan≤ During 1mm, the tin of welding can be deposited in hole top edges through described reach through hole, and excessive tin also can be from bendable electricity The edge of road plate flows back toward lower section, is then coagulated together with the tin on pad a, its structure is like that a rivet will be bendable Circuit board is firmly followed closely on power supply circuit board, so with reliable electricity connection function.In addition, the break-through bore dia is too small Tin can be hindered to pass through, therefore pad b reach through hole can also be changed to breach f, the tin of welding passes through described breach weldering Disk a and pad b electrical connections are fixed, and cooling has more soldered balls of the tin formation with more than break-through bore dia after condensing, this Ball structure can allow the crystallized ability of electric connection structure to strengthen.
Fig. 8 A are referred to, are the application circuit side of the power supply module of LED straight lamps according to the utility model embodiment Block schematic diagram.AC power 508 is to provide ac supply signal.AC power 508 can be civil power, voltage range 100- 277V, frequency is 50 or 60Hz.Lamp tube drive circuit 505 receives the ac supply signal of AC power 508, and is converted into exchange Drive signal is to be used as external drive signal.Lamp tube drive circuit 505 can be electric ballast, the signal of civil power to be turned Change into high frequency, the alternating current drive signal of high pressure.The species of common electronicses ballast, for example：Instantaneous starting type (Instant Start) electric ballast, preheating start-up type (Program Start) electric ballast, quick-starting direct (Rapid Start) Electric ballast etc., LED straight lamps of the present utility model are applicable.The voltage of alternating current drive signal is more than 300V, preferable voltage Scope is 400-700V；Frequency is more than 10kHz, and preferable frequency range is 20k-50kHz.LED straight lamps 500 receive external drive Signal, in the present embodiment, external drive signal are the alternating current drive signal of lamp tube drive circuit 505, and are driven to emit light. In the present embodiment, LED straight lamps 500 are the driving framework of single ended power supply, same one end lamp holder of fluorescent tube have the first pin 501, Second pin 502, to receive external drive signal.First pin 501, the second pin 502 of the present embodiment couple (that is, electric Connection or direct or indirect connection) to lamp tube drive circuit 505 to receive alternating current drive signal.
It is worth noting that, lamp tube drive circuit 505 is omissible circuit, therefore indicated in the drawings with dotted line.When When lamp tube drive circuit 505 is omitted, AC power 508 is coupled with the first pin 501, the second pin 502.Now, the first pin 501st, the second pin 502 receives the ac supply signal that AC power 508 is provided, to be used as external drive signal.
In addition to the application of above-mentioned single ended power supply, LED straight lamps 500 of the present utility model can also be applied to both-end list The circuit structure of the double pins of the circuit structure and both-end of pin.Wherein, the circuit structure of both-end list pin refers to Fig. 8 B, figure 8B is the application circuit block schematic diagram of the power supply module of the LED straight lamps according to the utility model embodiment.Compared to figure Shown in 8A, first pin 501, the second pin 502 of the present embodiment are respectively placed in the relative both-end of fluorescent tube of LED straight lamps 500 Lamp holder is to form each single pin of both-end, and the connection of remaining circuit and function are then identical with circuit shown in Fig. 8 A.The double pins of both-end Circuit structure refers to Fig. 8 C, and Fig. 8 C are the application electricity of the power module of the LED straight lamps according to the utility model embodiment Road block schematic diagram.Compared to shown in Fig. 8 A and 8B, the present embodiment also includes the 3rd pin 503 and the 4th pin 504.Fluorescent tube One end lamp holder has the first pin 501, the second pin 502, and other end lamp holder has the 3rd pin 503, the 4th pin 504.The One pin 501, the second pin 502, the 3rd pin 503 and the 4th pin 504 are coupled to lamp tube drive circuit 505 to receive jointly Alternating current drive signal, to drive the LED component (not shown) in LED straight lamps 500 to light.
Under the circuit structure of the double pins of both-end, both-end list pin enters electrically, or both-end double pins enter electricity side Formula, can realize the power supply of fluorescent tube through the configuration of adjustment power module.Wherein, under the entering electrically of both-end list pin (that is, the external drive signal of two ends lamp holder respectively to opposed polarity), in an exemplary embodiment, both-end lamp holder can have respectively One pin is that sky connects/suspension joint, and such as the second pin 502 and the 3rd pin 503 can connect/the state of suspension joint to be empty, make fluorescent tube saturating Cross the first pin 501 and the 4th pin 504 receives external drive signal, use and make the power module inside fluorescent tube carry out follow-up Rectification and filter action；In another exemplary embodiment, the pin of both-end lamp holder can distinguish short circuit together, and such as first connects Pin 501 is together with the short circuit of the second pin 502 on the lamp holder of the same side, and the 3rd pin 503 and the on the lamp holder of the same side The short circuit of four pin 504 together, so just can receive positive polarity or negative pole also with the first pin 501 and the second pin 502 Property external drive signal, and using the external drive signal of the 3rd pin 503 and the 4th pin 504 reception opposite polarity, Use the rectification for making the power module progress inside fluorescent tube follow-up and filter action.Under the entering electrically of the double pins of both-end (i.e., Two pins of the same side lamp holder give the external drive signal of opposed polarity respectively), in an exemplary embodiment, the first pin 501 and second pin 502 can receive the external drive signal of opposite polarity, and the 3rd pin 503 can connect with the 4th pin 504 The external drive signal of opposite polarity is received, the rectification for making the power module progress inside fluorescent tube follow-up and filter action is used.
Then, Fig. 8 D are referred to, are the circuit box schematic diagram according to the LED of the utility model embodiment.LED Power module mainly include the first rectification circuit 510 and filter circuit 520, the portion of LED illumination module 530 can also be included Subassembly.First rectification circuit 510 couples the first pin 501, the second pin 502, to receive external drive signal, and to outside Drive signal carries out rectification, then exports rectified signal by the first rectification output end 511, the second rectification output end 512.Herein External drive signal can be Fig. 8 A and the alternating current drive signal or ac supply signal in Fig. 8 B, be possibly even direct current Signal is without influenceing the operation of LED.Filter circuit 520 is coupled with first rectification circuit, to enter to rectified signal Row filtering；I.e. filter circuit 520 couples the first rectification output end 511, the second rectification output end 512 to receive rectified signal, And rectified signal is filtered, then output end 522 exports filtering after the filtering of output end 521, second after the first filtering Signal afterwards.LED illumination module 530 is coupled with filter circuit 520, with signal after accepting filter and is lighted；That is LED illumination module Then output end 522 drives LED to shine with signal after accepting filter after output end 521, second is filtered after 530 the first filtering of coupling LED component (not shown) in bright module 530 lights.The explanation of embodiment after this part please be referred to.
Fig. 8 E are referred to, are the circuit box schematic diagram according to the LED of the utility model embodiment.The electricity of LED Source module mainly includes the first rectification circuit 510, filter circuit 520, the rectification circuit 540 of LED illumination module 530 and second, It can apply to Fig. 8 C Double-End Source framework.First rectification circuit 510 couples the first pin 501, the second pin 502, is used to Receive the external drive signal that simultaneously rectification the first pin 501, the second pin 502 are transmitted；Second rectification circuit 540 coupling the 3rd Pin 503, the 4th pin 504, to the external drive letter received and the pin 503 of rectification the 3rd, the 4th pin 504 are transmitted Number.That is, the power supply module of LED can be common in first comprising the first rectification circuit 510 and the second rectification circuit 540 Rectification output end 511, the second rectification output end 512 output rectified signal.Filter circuit 520 couples the first rectification output end 511st, the second rectification output end 512 is to receive rectified signal, and rectified signal is filtered, then after first filters The output of output end 522 filtered signal after output end 521, second is filtered.Exported after the filtering of the coupling of LED illumination module 530 first Then output end 522 drives the LED component in LED illumination module 530 with signal after accepting filter after the filtering of end 521, second (not shown) lights.
Fig. 8 F are referred to, are the circuit box schematic diagram according to the LED of the utility model embodiment.The electricity of LED Source module mainly includes rectification circuit 510 ', filter circuit 520 and LED illumination module 530, and it is equally applicable to Fig. 8 C Double-End Source framework.The difference of the present embodiment and earlier figures 8E embodiments is that rectification circuit 510 ' can have three inputs Hold to be respectively coupled to the first pin 501, the second pin 502 and the 3rd pin 503, and can be for being connect from each pin 501~503 The signal that arrives carries out rectification, wherein the 4th pin 504 can for suspension joint or with the short circuit of the 3rd pin 503, therefore the present embodiment can be with Omit the configuration of the second rectification circuit 540.Remaining circuit running is roughly the same with Fig. 8 E, therefore does not repeat to repeat in this.
It is worth noting that, in the present embodiment, the first rectification output end 511, the second rectification output end 512 and the first filter The quantity of output end 522 is two after output end 521, second is filtered after ripple, and then according to the first rectification circuit during practical application 510th, between the increase in demand or reduction that signal is transmitted between filter circuit 520 and each circuit of LED illumination module 530, i.e., each circuit It can be one or more to couple end points.
Each embodiment of the power module of LED shown in Fig. 8 D to Fig. 8 F and the power module of following LED, except suitable Outside for the LED straight lamps shown in Fig. 8 A to Fig. 8 C, for including the illuminating circuit framework two pins to transmit electric power, example Such as：The lamp socket of a variety of illuminating lamps such as bulb lamp, PAL lamps, intubation electricity-saving lamp (PLS lamps, PLD lamps, PLT lamps, PLL lamps etc.) Specification is applicable.For bulb lamp embodiment the present embodiment can with CN105465630A or CN105465663 structures Implementation is arranged in pairs or groups use together so that protection against electric shock it is better.
When the energized structural of at least single pin of LED straight lamps 500 of the present utility model application to both-end, it could be adapted so The lamp socket comprising lamp tube drive circuit or ballast 505 (such as electric ballast or Inductive ballast) is installed on afterwards, and is applicable Change by AC power 508 (such as civil power) to power in bypass ballast 505.Fig. 8 G are referred to, are preferably to implement according to one The circuit box schematic diagram that the LED straight lamps of example are connected with external power source.Compared to shown in Fig. 8 A, handing in this embodiment Also increase by a bypass ballast module 506 between stream power supply 508 and ballast 505, the function of remaining circuit module then with figure Circuit module shown in 8B is approximate or identical.The power supply that ballast module 506 receives AC power 508 is bypassed, and as in fig. 8d Both-end the first pin 501 of connection LED straight lamps 500 and the second pin 502 (and ballast 505 can be connected with to ballast 505 specifically control), its function is to make to be output to first from the electric power bypass ballast 505 that AC power 508 is received The pin 502 of pin 501 and second bypasses ballast to be powered in miscellaneous embodiment to LED straight lamps 500 Module 506 can include the switching circuit for being used to make electric power bypass ballast 505, and this switching circuit can include for example electric or electricity The components such as sub switch or device are familiar with technical ability person in fluorescent lamp skill field and are understood that or structure bypass ballast module Furthermore 506 feasible structure and circuit, bypass ballast module 506 can be located at the conventional fluorescent with ballast 505 In lamp socket, furthermore in the power module 5 or 250 of LED straight lamps 500 can also be arranged on, if will bypass ballast module 506 It is set to stop this bypass function, then ballast 505 is still coupled to the first pin 501 and the second pin 502 as in fig. 8d, therefore Still permeable ballast 505 (receiving AC power 508) is powered to LED straight lamps 500 and so reequips (addition bypass Ballast module 506) even if making LED straight lamps 500 in the lamp socket with ballast 505, remain to be compatible with to exchange Power supply 508 carries out both end power supplying (rather than being powered by ballast 505).
Fig. 9 A are referred to, are the circuit diagram of the rectification circuit according to the utility model embodiment.Rectification circuit 610 For bridge rectifier, the first commutation diode 611, the second commutation diode 612, the 3rd commutation diode 613 and are included Four commutation diodes 614, to carry out full-wave rectification to received signal.The positive pole coupling the of first commutation diode 611 Two rectification output ends 512, negative pole couples the second pin 502.The positive pole of second commutation diode 612 couples the second rectification output end 512, negative pole couples the first pin 501.The positive pole of 3rd commutation diode 613 couples the second pin 502, and negative pole coupling first is whole Flow output end 511.The positive pole of commutation diode 614 couples the first pin 501, and negative pole couples the first rectification output end 511.
When the signal that the first pin 501, the second pin 502 are received is AC signal, the operation description of rectification circuit 610 It is as follows.When AC signal is in positive half-wave, AC signal is sequentially through the first pin 501, the rectification of commutation diode 614 and first Flow into, and sequentially flowed after the second rectification output end 512, the first commutation diode 611 and the second pin 502 after output end 511 Go out.When AC signal is in negative half-wave, AC signal is sequentially whole through the second pin 502, the 3rd commutation diode 613 and first Flow and flowed into after output end 511, and sequentially flowed out after the second rectification output end 512, the second commutation diode 612 and pin 501. Therefore, no matter AC signal is in positive half-wave or negative half-wave, it is whole that the positive pole of the rectified signal of rectification circuit 610 is respectively positioned on first Output end 511 is flowed, negative pole is respectively positioned on the second rectification output end 512.According to aforesaid operations explanation, it is whole that rectification circuit 610 is exported Signal is full wave rectified signal after stream.
When the first pin 501, the second pin 502 coupling dc source and when receiving direct current signal, the behaviour of rectification circuit 610 It is described as follows.When the first pin 501 couples the anode of dc source and the second pin 502 couples the negative terminal of dc source, Direct current signal is sequentially flowed into after the first pin 501, the rectification output end 511 of commutation diode 614 and first, and sequentially through second Flowed out after rectification output end 512, the first commutation diode 611 and the second pin 502.When the first pin 501 couples dc source Negative terminal and the second pin 502 couple dc source anode when, AC signal is sequentially through the second pin 502, the 3rd rectification two Flowed into after the rectification output end 511 of pole pipe 613 and first, and sequentially through the second rectification output end 512, the second commutation diode 612 Flowed out with after the first pin 501.Similarly, it is whole no matter how direct current signal inputs through the first pin 501, the second pin 502 The positive pole of the rectified signal of current circuit 610 is respectively positioned on the first rectification output end 511, and negative pole is respectively positioned on the second rectification output end 512。
Therefore, though the present embodiment the received signal of rectification circuit 610 be AC signal or direct current signal, Correct output rectified signal.
Fig. 9 B are referred to, are the circuit diagram of the rectification circuit according to the utility model embodiment.Rectification circuit 710 Comprising the first commutation diode 711 and the second commutation diode 712, to carry out halfwave rectifier to received signal.First The positive pole of commutation diode 711 couples the second pin 502, and negative pole couples the first rectification output end 511.Second commutation diode 712 positive pole couples the first rectification output end 511, and negative pole couples the first pin 501.Second rectification output end 512 regards actual answer With and can omit or be grounded.
Then illustrate that the operation of rectification circuit 710 is as follows.
When AC signal is in positive half-wave, AC signal is higher than second in the signal level that the first pin 501 is inputted The signal level that pin 502 is inputted.Now, the first commutation diode 711 and the second commutation diode 712 are in inverse inclined cut Only state, rectification circuit 710 stops output rectified signal.When AC signal is in negative half-wave, AC signal connects first The signal level that pin 501 is inputted is less than the signal level inputted in the second pin 502.Now, the first commutation diode 711 and Two commutation diodes 712 are in along inclined conducting state, and AC signal is defeated via the first commutation diode 711, the first rectification Go out end 511 and flow into, and flowed out by the second rectification output end 512 or another circuit or earth terminal of LED.According to aforesaid operations Illustrate, the rectified signal that rectification circuit 710 is exported is half wave rectified signal.
Wherein, the first pin 501 and the second pin 502 of the rectification circuit shown in Fig. 9 A and Fig. 9 B are changed to the 3rd pin 503 and during four pins 504, you can be used as the second rectification circuit 540 shown in Fig. 8 E.In particular, implement in an example In example, the full-wave rectifying circuit 610 shown in Fig. 9 A is applied in the fluorescent tube of Fig. 8 E double-width grinding, the first rectification circuit 510 Configuration with the second rectification circuit 540 can be as shown in Figure 9 C.Fig. 9 C are referred to, Fig. 9 C are according to the utility model embodiment The circuit diagram of rectification circuit.
The framework of rectification circuit 640 is identical with the framework of rectification circuit 610, is all bridge rectifier.Rectification circuit 610 Including first to fourth commutation diode 611-614, it is configured as described in earlier figures 9A embodiments.Rectification circuit 640 includes the Five commutation diodes 641, the 6th commutation diode 642, the 7th commutation diode 643 and the 8th commutation diode 644, to right Received signal carries out full-wave rectification.The positive pole of 5th commutation diode 641 couples the second rectification output end 512, negative pole coupling Connect the 4th pin 504.The positive pole of 6th commutation diode 642 couples the second rectification output end 512, and negative pole couples the 3rd pin 503.The positive pole of 3rd commutation diode 613 couples the second pin 502, and negative pole couples the first rectification output end 511.The pole of rectification two The positive pole of pipe 614 couples the 3rd pin 503, and negative pole couples the first rectification output end 511.
In the present embodiment, rectification circuit 640 is corresponding configuration with 610, and both differences are only that rectification circuit 610 The input of (can compare the first rectification circuit 510 for Fig. 8 E herein) is coupled to the first pin 501 and the second pin 502, and The input of rectification circuit 640 (can compare the second rectification circuit 540 for Fig. 8 E herein) is coupled to the 3rd pin 503 and the 4th Pin 504.In other words, the present embodiment is the circuit knot that the double pins of both-end are realized using the framework of two full-wave rectifying circuits Structure.
Further, in the rectification circuit of Fig. 9 C embodiments, although realized with the configuration of the double pins of both-end, But in addition to the double pins of both-end enter the power supply mode of electricity, either it is single-ended enter electricity or entering for both-end list pin electrically can LED straight lamps are powered through the circuit structure of the present embodiment.Specific running is described as follows：
It is single-ended enter electricity in the case of, external drive signal can be put on the first pin 501 and the second pin 502, or It is applied on the 3rd pin 503 and the 4th pin 504.The first pin 501 and the second pin are put in outside drive signal When on 502, rectification circuit 610 can carry out full-wave rectification according to the function mode described in Fig. 9 A embodiments to outside drive signal, And rectification circuit 640 will not then be operated.On the contrary, being put in outside drive signal on the 3rd pin 503 and the 4th pin 504 When, rectification circuit 640 can carry out full-wave rectification according to the function mode described in Fig. 9 A embodiments to outside drive signal, and rectification Circuit 610 will not then be operated.
In the case where both-end list pin enters electricity, external drive signal can put on the first pin 501 and the 4th pin 504, or put on the second pin 502 and the 3rd pin 503.The first pin 501 and the 4th is put in outside drive signal Pin 504, and external drive signal be AC signal when, AC signal be in positive half-wave during, AC signal is sequentially passed through Flowed into after first pin 501, the 4th commutation diode 614 and the first rectification output end 511, and sequentially through the second rectification output end 512nd, flowed out after the 5th commutation diode 641 and the 4th pin 504.During AC signal is in negative half-wave, AC signal Sequentially flowed into after the 4th pin 504, the 7th commutation diode 643 and the first rectification output end 511, and sequentially through the second rectification Flowed out after output end 512, the second commutation diode 612 and the first pin 501.Therefore, though AC signal be in positive half-wave or Negative half-wave, the positive pole of rectified signal is respectively positioned on the first rectification output end 511, and negative pole is respectively positioned on the second rectification output end 512.According to Illustrate according to aforesaid operations, the second commutation diode 612 and the 4th commutation diode 614 collocation rectified current in rectification circuit 610 The 5th commutation diode 641 and the 7th commutation diode 643 in road 640 carry out full-wave rectification to AC signal, and export Rectified signal be full wave rectified signal.
On the other hand, the second pin 502 and the 3rd pin 503, and external drive signal are put in outside drive signal During for AC signal, during AC signal is in positive half-wave, AC signal is sequentially through the 3rd pin 503, the 8th rectification two Flowed into after the rectification output end 511 of pole pipe 644 and first, and sequentially through the second rectification output end 512, the first commutation diode 611 Flowed out with after the second pin 502.During AC signal is in negative half-wave, AC signal is sequentially through the second pin the 502, the 3rd Flowed into after the rectification output end 511 of commutation diode 613 and first, and sequentially through the second rectification output end 512, the pole of the 6th rectification two Flowed out after the pin 503 of pipe 642 and the 3rd.Therefore, no matter AC signal is in positive half-wave or negative half-wave, the positive pole of rectified signal The first rectification output end 511 is respectively positioned on, negative pole is respectively positioned on the second rectification output end 512.According to aforesaid operations explanation, rectification circuit The 6th commutation diode in the first commutation diode 611 and the 3rd commutation diode 613 collocation rectification circuit 640 in 610 642 and the 8th commutation diode 644 to AC signal carry out full-wave rectification, and export rectified signal for full-wave rectification letter Number.
In the case where the double pins of both-end enter electricity, rectification circuit 610 and 640 other runnings can refer to above-mentioned Fig. 9 A and implement The explanation of example, is repeated no more in this.Wherein, signal can be exported in the first rectification after the rectification produced by rectification circuit 610 and 640 End 511 exports the circuit to rear end after being superimposed with the second rectification output end 512.
In an exemplary embodiment, the configuration of rectification circuit 510 ' can be as shown in fig. 9d.According to referring to Fig. 9 D, Fig. 9 D The circuit diagram of the rectification circuit of the utility model embodiment.Rectification circuit 910 includes first to fourth commutation diode 911-914, it is configured as described in earlier figures 9A embodiments.In the present embodiment, rectification circuit 910 also includes the pole of the 5th rectification two The commutation diode 916 of pipe 915 and the 6th.The positive pole of 5th commutation diode 915 couples the second rectification output end 512, negative pole coupling Connect the 3rd pin 503.The positive pole of 6th commutation diode 916 couples the 3rd pin 503, and negative pole couples the first rectification output end 511.4th pin 504 is floating in this.
In particular, the rectification circuit 510 ' of the present embodiment, which can be considered, the whole of three groups of bridge arms (bridge arm) unit Current circuit, every group of bridge arm unit can provide an input signal receiving terminal.For example, the first commutation diode 911 and the 3rd Commutation diode 913 constitutes the first bridge arm unit, and its correspondence receives the signal on the second pin 502；Second commutation diode 912 The second bridge arm unit is constituted with the 4th commutation diode 914, its correspondence receives the signal on the first pin 501；And the 5th is whole Flow the commutation diode 916 of diode 915 and the 6th and constitute the 3rd bridge arm unit, its correspondence receives the signal on the 3rd pin 503. Wherein, as long as three groups of bridge arm unit two of which, which receive opposite polarity AC signal, can be carried out full-wave rectification.Base this, Under the configuration of the rectification circuit of Fig. 9 E embodiments, it is same it is compatible it is single-ended enter electricity, both-end list pin enter electricity and both-end is double connects Pin enters the power supply mode of electricity.Specific running is described as follows：
It is single-ended enter electricity in the case of, external drive signal is put on the first pin 501 and the second pin 502, now First to fourth commutation diode 911-914 running is as described in earlier figures 9A embodiments, and the 5th commutation diode 915 and Six commutation diodes 916 are inoperative.
In the case where both-end list pin enters electricity, external drive signal can put on the first pin 501 and the 3rd pin 503, or put on the second pin 502 and the 3rd pin 503.The first pin 501 and the 3rd is put in outside drive signal Pin 503, and external drive signal be AC signal when, AC signal be in positive half-wave during, AC signal is sequentially passed through Flowed into after first pin 501, the 4th commutation diode 914 and the first rectification output end 511, and sequentially through the second rectification output end 512nd, flowed out after the 5th commutation diode 915 and the 3rd pin 503.During AC signal is in negative half-wave, AC signal Sequentially flowed into after the 3rd pin 503, the 6th commutation diode 916 and the first rectification output end 511, and sequentially through the second rectification Flowed out after output end 512, the second commutation diode 912 and the first pin 501.Therefore, though AC signal be in positive half-wave or Negative half-wave, the positive pole of rectified signal is respectively positioned on the first rectification output end 511, and negative pole is respectively positioned on the second rectification output end 512.According to Illustrate according to aforesaid operations, the second commutation diode 912 in rectification circuit 910, the 4th commutation diode 914, the 5th rectification two The commutation diode 916 of pole pipe 915 and the 6th carries out full-wave rectification to AC signal, and the rectified signal exported is whole for all-wave Flow signal.
On the other hand, the second pin 502 and the 3rd pin 503, and external drive signal are put in outside drive signal During for AC signal, during AC signal is in positive half-wave, AC signal is sequentially through the 3rd pin 503, the 6th rectification two Flowed into after the rectification output end 511 of pole pipe 916 and first, and sequentially through the second rectification output end 512, the first commutation diode 911 Flowed out with after the second pin 502.During AC signal is in negative half-wave, AC signal is sequentially through the second pin the 502, the 3rd Flowed into after the rectification output end 511 of commutation diode 913 and first, and sequentially through the second rectification output end 512, the pole of the 5th rectification two Flowed out after the pin 503 of pipe 915 and the 3rd.Therefore, no matter AC signal is in positive half-wave or negative half-wave, the positive pole of rectified signal The first rectification output end 511 is respectively positioned on, negative pole is respectively positioned on the second rectification output end 512.According to aforesaid operations explanation, rectification circuit The first commutation diode 911, the 3rd commutation diode 913, the 5th commutation diode 915 and the 6th commutation diode in 910 916 pairs of AC signals carry out full-wave rectification, and the rectified signal exported is full wave rectified signal.
In the case where the double pins of both-end enter electricity, the running of first to fourth commutation diode 911~914 can refer to above-mentioned The explanation of Fig. 9 A embodiments, is repeated no more in this.If in addition, the signal polarity of the 3rd pin 503 is identical with the first pin 501, Then the running of the 5th commutation diode 915 and the 6th commutation diode 916 is similar to the second commutation diode 912 and the 4th rectification Diode 914 (that is, the first bridge arm unit).On the other hand, if the signal polarity of the 3rd pin 503 is identical with the second pin 502, Then the running of the 5th commutation diode 915 and the 6th commutation diode 916 is similar to the first commutation diode 911 and the 3rd rectification Diode 913 (that is, the second bridge arm unit).
Fig. 9 E are referred to, Fig. 9 E are the circuit diagram of the rectification circuit according to the utility model embodiment.Fig. 9 E with Fig. 9 D are roughly the same, and both differences are that the input of Fig. 9 E the first rectification circuit 610 more couples end points change-over circuit 941. Wherein, the end points change-over circuit 941 of the present embodiment includes fuse 947 and 948.The one end of fuse 947 couples the first pin 501, the other end is coupled to conode (that is, the first bridge arm unit of the second commutation diode 912 and the 4th commutation diode 914 Input).The one end of fuse 948 couples the second pin 502, and the other end is coupled to the first commutation diode 911 and the 3rd whole Flow the conode (that is, the input of the second bridge arm unit) of diode 913.Thereby, when the first pin 501 and the second pin 502 When any electric current flowed through is higher than the rated current of fuse 947 and 948, fuse 947 and 948 will accordingly fuse and open Road, thereby reaches the function of overcurrent protection.In addition, in the case of fuse 947 and 948 only one of them fusing (such as excessively stream situation only occur that of short duration time eliminates), if entering the power supply mode of electricity to drive lamp using the double pins of both-end Pipe, then the rectification circuit of the present embodiment can also be after the elimination of excessively stream situation, the powering mode based on both-end list pin and lasting fortune Make.
Fig. 9 F are referred to, Fig. 9 F are the circuit diagram of the rectification circuit according to the utility model embodiment.Fig. 9 F with Fig. 9 D are roughly the same, and both differences are that Fig. 9 F two pins 503 and 504 are connected to one by thin (e.g., copper) wire 917 Rise.For earlier figures 9D or 9E embodiment, when entering electricity using both-end list pin, no matter external drive signal is to apply In the 3rd pin 503 or the 4th pin 504, the rectification circuit of the present embodiment all can normal operation.In addition, when the 3rd pin 503 With the mistake access of the 4th pin 504 it is single-ended enter electricity lamp socket when, thin (copper) wire 917 of the present embodiment can reliably fuse, Therefore when fluorescent tube turns back to correct lamp socket, remain to maintain normal rectification to work using the straight lamp of this rectification circuit.
From the foregoing, the rectification circuit of Fig. 9 C to Fig. 9 F embodiments can it is compatible it is single-ended enter electricity, both-end list pin enter electricity And the double pins of both-end enter the situation of electricity, and then improve the application environment compatibility of integral LED straight lamp.In addition, it is considered to To from the point of view of actual circuit layout situation, the circuit configuration of Fig. 9 D to 9F embodiment inside fluorescent tube only needs to set three pads (mode combination Fig. 4 A-4D of welding form) is connected to corresponding lamp holder pin, and the lifting for overall process yield has Significant contribution.
Figure 10 A are referred to, are the circuit box schematic diagram according to the filter circuit of the utility model embodiment.Painted in figure Go out the first rectification circuit 510 only to represent annexation, not filter circuit 520 includes the first rectification circuit 510.Filtered electrical Road 520 includes filter unit 523, the first rectification output end 511 of coupling and the second rectification output end 512, to receive rectification circuit The rectified signal exported, and filtered signal is exported after filtering out the ripple in rectified signal.Therefore, filtered signal Waveform is smoother compared with the waveform of rectified signal.Filter circuit 520 also can also include filter unit 524, be coupled to rectification circuit And between corresponding pin, for example：First rectification circuit 510 and the first pin 501, the first rectification circuit 510 and the second pin 502nd, the second rectification circuit 540 and the 3rd pin 503 and the second rectification circuit 540 and the 4th pin 504, to specific frequency It is filtered, to filter out the specific frequency of external drive signal.In the present embodiment, filter unit 524 is coupled to the first pin 501 Between the first rectification circuit 510.Filter circuit 520 also can also include filter unit 525, be coupled to the first pin 501 and Two pins 502 one of them between the diode of one of the first rectification circuit 510 or the 3rd pin 503 and the 4th pin 504 one of them and the second rectification circuit 540 diodes of one of them, to reduce or filter out electromagnetic interference (EMI).At this Embodiment, filter unit 525 is coupled to the first pin 501 (schemes not with the diode of one of them with the first rectification circuit 510 Show) between.Because the visual practical situations of filter unit 524 and 525 are added or omitted, Gu Tuzhong is represented by dotted lines it.
Figure 10 B are referred to, are the circuit diagram of the filter unit according to the utility model embodiment.Filter unit 623 include an electric capacity 625.One end of electric capacity 625 couples the first rectification output end 511 and the first filtering output end 521, the other end The second rectification output end 512 and the second filtering output end 522 are coupled, with to defeated by the first rectification output end 511 and the second rectification The rectified signal for going out 512 outputs carries out LPF, is formed after filtering and believed with filtering out the radio-frequency component in rectified signal Number, then exported by the first filtering output end 521 and the second filtering output end 522.
Figure 10 C are referred to, are the circuit diagram of the filter unit according to the utility model embodiment.Filter unit 723 be π type filter circuits, includes electric capacity 725, inductance 726 and electric capacity 727.One end of electric capacity 725 couples the first rectification output End 511 simultaneously couples the first filtering output end 521 by inductance 726 simultaneously, and the other end couples the second rectification output end 512 and second Filtering output end 522.Inductance 726 is coupled between the first rectification output end 511 and the first filtering output end 521.Electric capacity 727 One end is by first rectification output end 511 of the coupling of inductance 726 and couples the first filtering output end 521 simultaneously, other end coupling the Two rectification output ends 512 and the second filtering output end 522.
From the point of view of on equivalent, filter unit 723 inductance 726 and electric capacity 727 compared with the filter unit more than 623 shown in Figure 10 B.And And inductance 726 and electric capacity 727 are also with as electric capacity 725, with LPF effect.Therefore, the filter unit 723 of the present embodiment is compared In the filter unit 623 shown in Figure 10 B, ability is filtered out with more preferably high frequency, the waveform of the filtered signal exported is more Smoothly.
The inductance value of inductance 726 in above-described embodiment is preferably the scope selected from 10nH~10mH.Electric capacity 625,725,727 Capacitance be preferably selected from 100pF~1uF scope.
Figure 11 A are referred to, are the circuit diagram of the LED module according to the utility model embodiment.LED module 630 Anode couple the first filtering output end 521, negative terminal couple the second filtering output end 522.LED module 630 includes at least one Light source in LED unit 632, i.e. previous embodiment.LED unit 632 is connected in parallel to each other when being two or more.Each LED unit Anode couple LED module 630 anode, to couple the first filtering output end 521；The negative terminal coupling LED of each LED unit The negative terminal of module 630, to couple the second filtering output end 522.LED unit 632 includes at least one LED component 631.Work as LED When component 631 is plural number, LED component 631 is connected into a string, LED unit 632 belonging to the anode coupling of first LED component 631 Anode, the negative terminal of first LED component 631 couples next (second) LED component 631.And last LED component 631 anode couples the negative terminal of previous LED component 631, LED unit belonging to the negative terminal coupling of last LED component 631 632 negative terminal.
It is worth noting that, LED module 630 can produce current sense signal S531, represent LED module 630 flows through electricity Size is flowed, to be used as detecting, control LED module 630.
Figure 11 B are referred to, are the circuit diagram of the LED module according to the utility model embodiment.LED module 630 Anode couple the first filtering output end 521, negative terminal couple the second filtering output end 522.LED module 630 includes at least two LED unit 732, and the anode of the anode coupling LED module 630 of each LED unit 732, and negative terminal coupling LED module 630 negative terminal.LED unit 732 includes at least two LED components 731, the LED component 731 in affiliated LED unit 732 Connected mode is as described by Figure 11 A, and the negative pole of LED component 731 and the positive pole of next LED component 731 are coupled, and first The positive pole of LED unit 732 belonging to the positive pole coupling of individual LED component 731, and the negative pole of last LED component 731 couple institute Belong to the negative pole of LED unit 732.Furthermore, also it is connected to each other between the LED unit 732 in the present embodiment.Each LED unit 732 The positive pole of n-th of LED component 731 be connected to each other, negative pole is also connected to each other.Therefore, the LED of the LED module 630 of the present embodiment The connection of inter-module is netted connection.
Compared to Figure 12 A to Figure 12 F embodiment, the LED illumination module 530 of above-described embodiment comprising LED module 630 but Drive circuit is not included.
Similarly, the LED module 630 of the present embodiment can produce current sense signal S531, represent the stream of LED module 630 Through size of current, to be used as detecting, control LED module 630.
In addition, in practical application, the quantity for the LED component 731 that LED unit 732 is included is preferably 15-25, more preferably For 18-22.
Figure 11 C are referred to, are the cabling schematic diagram according to the LED module of the utility model embodiment.The present embodiment The annexation of LED component 831 is illustrated by taking three LED units as an example herein with shown in Figure 11 B.Positive wire 834 is with bearing Polar conductor 835 receives drive signal, to provide electrical power to each LED component 831, for example：Positive wire 834 couples foregoing filter First filtering output end 521 of wave circuit 520, cathode conductor 835 couples the second filtering output end of foregoing filter circuit 520 522, with signal after accepting filter.For convenience of description, n-th in each LED unit is divided into same LED groups in figure 833。
First LED component 831 in the connection LED unit of the leftmost side three of positive wire 834, the i.e. leftmost side as shown in the figure (left side) positive pole of three LED components in LED groups 833, and cathode conductor 835 connects last in three LED units LED component 831, i.e., (right side) negative pole of three LED components as shown in the figure in rightmost side LED groups 833.Each LED unit First LED component 831 negative pole, the positive pole of the positive pole of last LED component 831 and other LED components 831 and negative Pole is then connected through connecting wire 839.
In other words, the positive pole of three LED components 831 of leftmost side LED groups 833 is connected to each other through positive wire 834, Its negative pole is connected to each other through leftmost side connecting wire 839.The positive pole of three LED components 831 of the second from left LED groups 833 is through most Left side connecting wire 839 is connected to each other, and its negative pole is connected to each other through the connecting wire 839 of the second from left.Due to leftmost side LED groups The negative pole of 833 three LED components 831 and the positive pole of three LED components 831 of the second from left LED groups 833 are connected through the leftmost side Wire 839 is connected to each other, therefore the negative pole of the first of each LED unit LED component and the positive pole of second LED component are each other Connection.The rest may be inferred so as to form netted connection as shown in Figure 11 B.
It is worth noting that, be less than in connecting wire 839 with the width 836 of the positive pole coupling part of LED component 831 with The width 837 of the negative polarity connecting portion of LED component 831.The area of negative polarity connecting portion is set to be more than the area of positive pole coupling part. In addition, width 837 is less than the positive pole that connects one of them in neighbouring two LED components 831 in connecting wire 839 simultaneously and another Negative pole part width 838, make to be more than the area only with negative polarity connecting portion with the area of positive pole and cathode portion simultaneously And the area of positive pole coupling part.Therefore, such cabling framework contributes to the radiating of LED component.
In addition, positive wire 834 can also include positive wire 834a, cathode conductor 835 can also include negative wire 835a, makes the two ends of LED module be respectively provided with positive pole and negative pole tie point.Such cabling framework can make the power supply module of LED Other circuits, for example：Filter circuit 520, the first rectification circuit 510 and the second rectification circuit 540 are two by either end or simultaneously The positive pole and negative pole tie point at end are couple to LED module, the elasticity of the configuration arrangement of increase actual circuit.
Figure 11 D are referred to, are the cabling schematic diagram according to the LED module of the utility model embodiment.The present embodiment The annexation of LED component 931 is with shown in Figure 11 A, herein with three LED units and each LED unit includes 7 LED components Exemplified by illustrate.Positive wire 934 receives drive signal with cathode conductor 935, to provide electrical power to each LED component 931, lifts For example：Positive wire 934 couples the first filtering output end 521 of foregoing filter circuit 520, and cathode conductor 935 couples foregoing Second filtering output end 522 of filter circuit 520, with signal after accepting filter.For convenience of description, it is in figure that each LED is mono- Seven LED components are divided into same LED groups 932 in member.
Positive wire 934 connects (left side) positive pole of first (leftmost side) LED component 931 in every LED groups 932.It is negative Polar conductor 935 connects (right side) negative pole of last (rightmost side) LED component 931 in every LED groups 932.In every LED groups In 932, the negative pole of the LED component 931 of left connects right LED groups through connecting wire 939 in neighbouring two LED components 931 The positive pole of part 931.Thereby, the LED component of LED groups 932 is connected into a string.
It is worth noting that, connecting wire 939 to connect one of two adjacent LEDs component 931 negative pole and Another positive pole.The negative pole of the LED component 931 of last (rightmost side) of the cathode conductor 935 to connect each LED groups.Just The positive pole of the LED component 931 of first (leftmost side) of the polar conductor 934 to connect each LED groups.Therefore, its width and LED is supplied The area of dissipation of component according to said sequence from large to small.That is, the width 938 of connecting wire 939 is maximum, cathode conductor The width 937 of the 935 connection negative poles of LED component 931 takes second place, and the width 936 of the connection positive pole of LED component 931 of positive wire 934 is most It is small.Therefore, such cabling framework contributes to the radiating of LED component.
In addition, positive wire 934 can also include positive wire 934a, cathode conductor 935 can also include negative wire 935a, makes the two ends of LED module be respectively provided with positive pole and negative pole tie point.Such cabling framework can make the power supply module of LED Other circuits, for example：Filter circuit 520, the first rectification circuit 510 and the second rectification circuit 540 are two by either end or simultaneously The positive pole and negative pole tie point at end are couple to LED module, the elasticity of the configuration arrangement of increase actual circuit.
Furthermore, the cabling shown in Figure 11 C and 11D can be realized with flexible circuit board.For example, bendable circuit Plate has individual layer line layer, the positive wire 834 that is formed with etching mode in Figure 11 C, positive wire 834a, cathode conductor 835, Negative wire 835a and positive wire 934 in connecting wire 839, and Figure 11 D, positive wire 934a, cathode conductor 935, Negative wire 935a and connecting wire 939.
Figure 11 E are referred to, Figure 11 E are the cabling schematic diagram of the LED module according to the utility model embodiment.This implementation The annexation of the LED component 1031 of example is with shown in Figure 11 B.Wherein, the present embodiment is related to positive wire and cathode conductor (not Illustrate) configuration and annexation with other circuits it is roughly the same with earlier figures 11D, difference between the two is the present embodiment By with landscape configuration LED component 831, (that is, each LED component 831 is to extend its positive pole and negative pole along wire shown in Figure 11 C Direction is arranged) it is changed to configure LED component 1031 (that is, the positive pole of each LED component 1031 and the line direction of negative pole with longitudinal direction It is vertical with wire bearing of trend), and the configuration direction based on LED component 1031 and correspondence adjust matching somebody with somebody for connecting wire 1039 Put.
In particular, illustrate by taking connecting wire 1039_2 as an example, it is narrower that connecting wire 1039_2 includes width 1037 The second wider long leg of first long leg, width 1038 and the turning point for connecting two long legs.Connecting wire 1039_2 can To be set to the shape of right angle Z-shaped, that is, the junction of each long leg and turning point is rectangular.Wherein, connecting wire 1039_2 the first long leg can configuration corresponding with adjacent connecting wire 1039_3 the second long leg；Similarly, connection is led Line 1039_2 the second long leg can configuration corresponding with adjacent connecting wire 1039_1 the first long leg.Can by above-mentioned configuration Know, connecting wire 1039 can extend the bearing of trend arrangement of edge, and the first long leg of each connecting wire 1039 can be with The second long leg correspondence of adjacent connecting wire 1039 is configured；Similarly, the second long leg meeting of each connecting wire 1039 Configuration corresponding with the first long leg of adjacent connecting wire 1039, and then each connecting wire 1039 is integrally formed with one The configuration of broadening degree.The configuration of other connecting wires 1039 can refer to above-mentioned connecting wire 1039_2 explanation.
For the relative configuration of LED component 1031 and connecting wire 1039, equally illustrated with connecting wire 1039_2, In the present embodiment, the positive pole of the LED component 1031 (such as four LED components 1031 in right side) of part is to be connected to connecting wire 1039_2 the first long leg, and be interconnected with one another by the first long leg；And the negative pole of this part LED component 1031 is then It is the second long leg for being connected to adjacent connecting wire 1039_3, and connected each other by the second long leg.The opposing party Face, the positive pole of the LED component 1031 (such as four LED components 1031 in left side) of another part is to be connected to connecting wire 1039_1 The first long leg, and negative pole is the second long leg for being connected to connecting wire 1039_2.
In other words, the positive pole of four LED components 1031 in left side is connected to each other through connecting wire 1039_1, and its negative pole is saturating Connecting wire 1039_2 is crossed to be connected to each other.The positive pole of four LED components 831 in right side is connected to each other through connecting wire 1039_2, Its negative pole is connected to each other through connecting wire 1039_3.Because the negative pole of four LED components 1031 in left side passes through connecting wire 1039_2 is connected with the positive pole of four LED components 1031 in right side, and four, left side LED component 1031 can be modeled as LED module wherein First LED component of four LED units, and four, right side LED component 1031 can simulate LED for LED module wherein four Second LED component of LED unit, the rest may be inferred so as to form netted connection as shown in Figure 11 B.
It is worth noting that, from the point of view of compared to Figure 11 C, LED component 1031 is changed to longitudinal configuration by the present embodiment, it can increase Plus the gap between LED component 1031, and cause the cabling broadening of connecting wire, and then avoid the circuit when fluorescent tube is rebuild from holding The risk being easily punctured, and when can avoid 1031 numbers of LED component more simultaneously and need close-packed arrays, copper foil is covered between lamp bead Area is not enough and makes the problem of tin sweat(ing) causes short circuit.
On the other hand, it is less than and negative polarity connecting portion through the width 1036 for the first long leg for making positive pole coupling part The configuration of the width 1037 of second long leg, can make LED component 1031 be connected in the area of negative polarity connecting portion more than positive pole Partial area.Therefore, such cabling framework contributes to the radiating of LED component.
Figure 11 F are referred to, Figure 11 F are the cabling schematic diagram of the LED module according to the utility model embodiment.This implementation Example is roughly the same with earlier figures 11E embodiments, and both differences are only that the connecting wire 1139 of the present embodiment is the Z with on-right angle Type cabling is implemented.In other words, in the present embodiment, turning point forms oblique cabling so that each length of connecting wire 1139 The junction of edge and turning point is on-right angle., can be real except longitudinal direction configuration LED component 1131 under the configuration of the present embodiment The now gap between increase LED component 1031, and causing outside the effect of cabling broadening of connecting wire, the present embodiment is oblique Because pad injustice causes LED component displacement, skew etc. to be asked when the mode of configuration connecting wire can avoid the LED component from mounting Topic.
Specifically, in the case where using application of the flexible circuit board as lamp plate, (such as Figure 11 C's to 11E matches somebody with somebody vertical cabling Put) regular white oil depressed area can be produced in wire turning point so that and Xi Chu is relative on the LED component pad in connecting wire In raised position.Due to upper Xi Chu and non-planar surface, therefore it may make when LED component is mounted because of surface irregularity LED component can not be pasted on predetermined position.Therefore, the present embodiment passes through vertical cabling being adjusted to matching somebody with somebody for oblique cabling Put, the copper foil even intensity that cabling can be made overall, without there is raised or uneven situation, Jin Erling in ad-hoc location LED component 1131 can be easier to be attached on wire, improve reliability when fluorescent tube is equipped with.In addition, due to this implementation Each LED unit only can walk an oblique line substrate on lamp plate in example, therefore the intensity of overall lamp plate can be caused significantly to carry Height, so as to prevent lamp plate from bending, can also shorten lamp plate length.
In addition, in an exemplary embodiment, the pad peripheral that can also be passed through in LED component 1131 covers copper foil, uses Offset offset when LED component 1131 is mounted, it is to avoid produce the situation that tin sweat(ing) causes short circuit.
Figure 11 G are referred to, Figure 11 G are the cabling schematic diagram of the LED module according to the utility model embodiment.This implementation Example is roughly the same with Figure 11 C, and the connecting wire 1239 and connecting wire of the present embodiment are essentially consisted in place of difference between the two Corresponding position (at the pad of non-LED component 1231) cabling between 1239 is changed to oblique cabling.Wherein, embodiment is passed through vertically Cabling is adjusted to the configuration of oblique cabling, the copper foil even intensity of online entirety can be made away, without occurring in ad-hoc location Raised or uneven situation, and then make LED component 1131 to be easier to be attached on wire, improve fluorescent tube it is equipped when can By degree.
In addition, under the configuration of the present embodiment, it can also unify color temperature point CTP being arranged between LED component 1231, As shown in figure 11H, Figure 11 H are the cabling schematic diagram of the LED module according to the utility model embodiment.Through unified by colour temperature Point CTP is arranged on the configuration of LED component so that after wire is spliced to form LED module, the colour temperature of correspondence position on each wire Point CTP can be online in same.Consequently, it is possible in upper tin, whole LED module can only with several adhesive tapes (as illustrated, If every wire sets 3 color temperature points, 3 adhesive tapes are only needed) all color temperature points on LED module can be sheltered from, use and carry The smooth degree of high assemble flow, and save installation time.
Figure 11 I are referred to, Figure 11 I are the lamp plate pad schematic diagram according to the utility model preferred embodiment, wherein, figure 11I is the configuration for illustrating lamp plate end pad.In the present embodiment, the pad b1 on lamp plate and b2 is suitable to and power supply circuit board Power pad welds together.Wherein, the pad configuration of the present embodiment is applicable to entering electrically for both-end list pin, Yi Jitong The pad of side can receive the external drive signal of identical polar.
Specifically, the pad b1 and b2 of the present embodiment can link together through the fuse FS of S types, wherein fuse FS can be for example with thin wire to be constituted, and its impedance is at a fairly low, therefore can be considered as pad b1 together with b2 short circuits.Correct Application situation under, pad b1 and b2 can the corresponding external drive signals for receiving identical polar.And by the configuration, even if weldering Disk b1 and b2 misconnection to opposite polarity external drive signal, fuse FS can also react on by high current and fuse, from And avoid fluorescent tube from damaging.In addition, after fuse FS fusing, can form that pad b2 skies connect and pad b1 is still connected to lamp plate Configure, therefore lamp plate remains to receive external drive signal through pad b1 and be continuing with.
On the other hand, in an exemplary embodiment, the thickness of pad b1 and b2 cabling and pad body is at least up to 0.4mm, the understanding that actual (real) thickness can be according to those skilled in the art is more than 0.4mm's under enforceable situation from thickness Any thickness.After empirical tests, it is at least up in pad b1 and b2 cabling and the thickness of pad body under 0.4mm configuration, When lamp plate is docked through pad b1 with b2 and power supply circuit board to be placed into fluorescent tube, even if the copper foil at pad b1 and b2 is rolled over Disconnected, the copper foil of many affixs in its periphery can also connect the circuit of lamp plate and power supply circuit board so that fluorescent tube can be normal Work.
In addition, in another exemplary embodiment, pad b1 could be arranged to and lamp plate with positions of the b2 on lamp plate Edge have one interval.Through the interval configuration, power supply circuit board can be made to have larger position in welding with lamp plate Fault tolerant workspace.
Figure 11 J are referred to, are the cabling schematic diagram according to the LED module of the utility model embodiment.The present embodiment system The cabling of Figure 11 C LED module is changed to double-deck line layer by individual layer line layer, mainly drawn positive wire 834a and negative pole Line 835a is changed to second layer line layer.It is described as follows.
Please referring also to Fig. 7, flexible circuit board has double-deck line layer, including a first line layer 2a, dielectric layer 2b And the second line layer 2c.Electrically isolated between first line layer 2a and the second line layer 2c with dielectric layer 2b.Bendable circuit Positive wire 834, cathode conductor 835 and connecting wire 839 that the first line layer 2a of plate is formed in Figure 11 J with etching mode, To electrically connect the multiple LED component 831, for example：Electrically connect the multiple LED component and reticulate connection, the second line layer 2c With etching mode positive wire 834a, negative wire 835a, to electrically connect the filter circuit (filtering output end).And The first line layer 2a of flexible circuit board positive wire 834, cathode conductor 835 has layer tie point 834b and 835b.The Positive wire 834a, the negative wire 835a of two line layers 2 have layer tie point 834c and 835c.Layer tie point 834b and 835b It is relative with layer tie point 834c and 835c positions, positive wire 834 and positive wire 834a are for electrically connecting to, and negative pole is led Line 835 and negative wire 835a.Preferably do the genealogy of law by layer the tie point 834b and 835b of first layer line layer position with , to layer tie point a 834c and 835c is exposed, then welded with scolding tin by electric layer formation opening, make positive wire 834 and just in side Pole lead 834a, and cathode conductor 835 and negative wire 835a are electrically connected to each other.
Similarly, positive wire 934a and negative wire 935a can also be changed to by the cabling of the LED module shown in Figure 11 D Second layer line layer, and form the Wiring structure of double-deck line layer.
Because perforation hp causes the contact area between scolding tin and power pad a1, a2 and a3 to increase, therefore power pad Power of pasting between a1, a2 and a3 and light source pad is further enhanced.In addition, perforation hp setting can also improve radiating Area so that the thermal characteristics of fluorescent tube can be with elevated.In the present embodiment, perforation hp number can according to pad a1, a2 and A3 size and select as 7 or 9.If selecting to implement with 7 perforation hp configuration, perforation hp arrangement can be wherein 6 perforation hp are arranged on a circumference, surplus next, are configured on the center of circle.If selecting to implement with 9 perforation hp configuration, The array that the perforation hp can adopt 3x3 is arranged.Above-mentioned configuration selection can preferably increase contact area and improve Radiating effect.
It is worth noting that, with bilayer conductive layer or line layer flexible circuit board the second conductive layer thickness compared with Good is the thickness thickness compared to the first conductive layer, can thereby reduce the line loss (pressure drop) on positive wire and negative wire. Furthermore, flexible circuit board of the flexible circuit board compared to single conductive layer with bilayer conductive layer, due to by two ends Positive wire, negative wire move to the second layer, can reduce the width of flexible circuit board.It is narrower on identical tool The discharge quantity of substrate is more than wider substrate, therefore can improve the production efficiency of LED module.And with bilayer conductive layer Flexible circuit board relatively on be relatively easy to maintain shape, to increase the reliability of production, for example：During the welding of LED component The accuracy of welding position.Certain pad structure can be applied to the flexible circuit board with single conductive layer or line layer. Occasion of the quantity of LED component regarding application (depending on the power of LED straight lamps).
Figure 12 A are referred to, are to be shown according to the application circuit square of the power supply module of the LED of the utility model embodiment It is intended to.Compared to shown in Fig. 8 C, the power supply module of the LED of the present embodiment comprising the first rectification circuit 510, filter circuit 520, Drive circuit 1530, wherein drive circuit 1530 and LED module 630 composition LED illumination module 530.Drive circuit 1530 is straight Circulate DC converting circuit, the first filtering output end 521 of coupling and the second filtering output end 522, with signal after accepting filter, and Electrical power conversion is carried out to export in the first drive output 1521 and the second driving so that filtered signal is converted into drive signal End 1522 is exported.LED module 630 couples the first drive output 1521 and the second drive output 1522, to receive driving letter Number and light, the electric current of preferably LED module 630 is stable at a setting electric current value.LED module 630 can be found in Figure 11 A to figure 11D explanation.
Figure 12 B are referred to, are the circuit box schematic diagram according to the drive circuit of the utility model embodiment.Driving electricity Road includes controller 1531 and change-over circuit 1532, and electrical power conversion is carried out with the pattern of current source, to drive LED module to light. Change-over circuit 1532 includes on-off circuit 1535 and accumulator 1538.Change-over circuit 1532 couples the first filtering output end 521 and second filtering output end 522, signal after accepting filter, and according to the control of controller 1531, be converted into drive signal and Exported by the first drive output 1521 and the second drive output 1522, to drive LED module.In the control of controller 1531 Under, the drive signal that change-over circuit 1532 is exported is stabling current, and makes LED module stabilized illumination.
Figure 12 C are referred to, are the circuit diagram of the drive circuit according to the utility model embodiment.In this implementation Example, drive circuit 1630 is decompression DC to-DC switching circuit, comprising controller 1631 and change-over circuit, and change-over circuit bag Containing inductance 1632, fly-wheel diode 1633, electric capacity 1634 and switching switch 1635.The filtering of the coupling of drive circuit 1,630 first is defeated Go out end 521 and second filtering output end 522, the filtered signal of reception is converted into drive signal, the is coupled in drive LED module between one drive output 1521 and the second drive output 1522.
In the present embodiment, switching switch 1635 is metal-oxide half field effect transistor, with control end, first end and second End.The first end of switching switch 1635 couples the positive pole of fly-wheel diode 1633, and the second end couples the second filtering output end 522, Control end, which couples control of the controller 1631 to receive controller 1631, to be made between first end and the second end on or off.The One drive output 1521 couples the first filtering output end 521, and the second drive output 1522 couples one end of inductance 1632, and The first end of the other end coupling switching switch 1635 of inductance 1632.Electric capacity 1634 be coupled to the first drive output 1521 and Between second drive output 1522, to stablize the voltage between the first drive output 1521 and the second drive output 1522 Difference.The negative terminal of fly-wheel diode 1633 couples the first drive output 1521.
Next the running of explanation drive circuit 1630.
When controller 1631 determines the conducting and cut-off of switching switch 1635 according to current sense signal S535 and/or S531 Between, that is, control the dutycycle (Duty Cycle) of switching switch 1635 to adjust the size of drive signal.Current sense is believed Number S535 systems represent the size of current for flowing through switching switch 1635.The representative of current sense signal S531 systems, which is flowed through, is coupled to the first drive The size of current of LED module between the dynamic drive output 1522 of output end 1521 and second.According to current sense signal S531 And S535 any, controller 1631 can obtain the information for the electric power size that change-over circuit is changed.When switching switch 1635 During conducting, the electric current of filtered signal is flowed into by the first filtering output end 521, and passes through the drive output of electric capacity 1634 and first 1521 to LED module, inductance 1632, switching switch 1635 after flowed out by the second filtering output end 522.Now, electric capacity 1634 and Inductance 1632 carries out energy storage.When switching switch 1635 ends, inductance 1632 and electric capacity 1634 discharge stored energy, electric current Make LED module still continuous illumination to the first drive output 1521 through the afterflow of fly-wheel diode 1633.
It is worth noting that, the inessential component of electric capacity 1634 and can omit, therefore be represented by dotted lines in figure.Should at some With environment, the effect of stable LED module electric current can be reached by the characteristic of the change of inductance meeting resistive and electricity is omitted Hold 1634.
Again from the point of view of another angle, drive circuit 1630 passes through LED module electric current and remained unchanged, therefore for part For LED module (for example:The LED module such as white, red, blueness, green), the situation that colour temperature changes with size of current is i.e. It can improve, that is, LED module can maintain colour temperature constant under different brightness.And the inductance 1632 for playing the part of accumulator is being cut Release stored energy when switch 1635 ends is changed, on the one hand causes LED module to keep continuous illumination, on the other hand also causes Current Voltage on LED module will not rapid drawdown to minimum, and when switching switch 1635 is turned on again, Current Voltage is just not required to Come and gone from minimum to maximum, thereby, it is to avoid LED module discontinuously lights and improves the overall brightness of LED module and reduce most Low turn-on cycle and raising driving frequency.
Figure 12 D are referred to, are the circuit diagram of the drive circuit according to the utility model embodiment.In this implementation Example, drive circuit 1730 is voltage boosting dc to-DC switching circuit, comprising controller 1731 and change-over circuit, and change-over circuit bag Containing inductance 1732, fly-wheel diode 1733, electric capacity 1734 and switching switch 1735.Drive circuit 1730 will be defeated by the first filtering Go out the filtered signal that is received of filtering output end 522 of end 521 and second and be converted into drive signal, the first drive is coupled in drive LED module between the dynamic drive output 1522 of output end 1521 and second.
One end of inductance 1732 couples the first filtering output end 521, the positive pole of other end coupling filter stream diode 1733 and The first end of switching switch 1735.The second end coupling the second filtering output end 522 of switching switch 1735 and the second driving output End 1522.The negative pole of fly-wheel diode 1733 couples the first drive output 1521.Electric capacity 1734 is coupled to the first driving output Between the drive output 1522 of end 1521 and second.
The control end of the coupling switching of controller 1731 switch 1735, according to current sense signal S531 and/or current sense Signal S535 come control switching switch 1735 conducting and cut-off.When switching switch 1735 is turned on, electric current is defeated by the first filtering Go out end 521 to flow into, and flow through inductance 1732, switching and flowed out after switching 1735 by the second filtering output end 522.Now, electricity is flowed through The electric current of sense 1732 increases with the time, and inductance 1732 is in energy storage state.Meanwhile, electric capacity 1734 is in de-energized state, to continue LED module is driven to light.When switching switch 1735 ends, inductance 1732 is in de-energized state, and the electric current of inductance 1732 is at any time Between reduce.The electric current of inductance 1732 flows to electric capacity 1734 and LED module through the afterflow of fly-wheel diode 1733.Now, electric capacity 1734 are in energy storage state.
It is worth noting that, electric capacity 1734 is omissible component, it is represented by dotted lines.Situation about being omitted in electric capacity 1734, When switching switch 1735 is turned on, the electric current of inductance 1732 is not passed through LED module and LED module is not lighted；Switching switch 1735 During cut-off, the electric current of inductance 1732 flows through LED module through fly-wheel diode 1733 and LED module is lighted.By control LED moulds The fluorescent lifetime of block and the size of current flowed through, can reach that the mean flow rate of LED module is stable in setting value, and reach phase The effect of same stabilized illumination.
Again from the point of view of another angle, drive circuit 1730 passes through LED module electric current and remained unchanged, therefore for part For LED module (for example:The LED module such as white, red, blueness, green), the situation that colour temperature changes with size of current is i.e. It can improve, that is, LED module can maintain colour temperature constant under different brightness.And the inductance 1732 for playing the part of accumulator is being cut Release stored energy when switch 1735 ends is changed, on the one hand causes LED module continuous illumination, on the other hand also causes LED Current Voltage in module will not rapid drawdown to minimum, and when switching switch 1735 is turned on again, Current Voltage be just not required to from Minimum comes and goes maximum, thereby, it is to avoid LED module discontinuously lights and improves the overall brightness of LED module and reduce minimum Turn-on cycle and raising driving frequency.
Figure 12 E are referred to, are the circuit diagram of the drive circuit according to the utility model embodiment.In this implementation Example, drive circuit 1830 is decompression DC to-DC switching circuit, comprising controller 1831 and change-over circuit, and change-over circuit bag Containing inductance 1832, fly-wheel diode 1833, electric capacity 1834 and switching switch 1835.The filtering of the coupling of drive circuit 1,830 first is defeated Go out end 521 and second filtering output end 522, the filtered signal of reception is converted into drive signal, the is coupled in drive LED module between one drive output 1521 and the second drive output 1522.
The first end of switching switch 1835 couples the first filtering output end 521, the second end coupling fly-wheel diode 1833 Negative pole, and control end coupling controller 1831 is made between first end and the second end with receiving the control signal of controller 1831 State is on or off.The positive pole of fly-wheel diode 1833 couples the second filtering output end 522.One end of inductance 1832 is with cutting The second end coupling of switch 1835 is changed, the other end couples the first drive output 1521.The coupling of second drive output 1522 is continuous Flow the positive pole of diode 1833.Electric capacity 1834 is coupled between the first drive output 1521 and the second drive output 1522, To stablize the voltage between the first drive output 1521 and the second drive output 1522.
Controller 1831 controls switching switch 1835 according to current sense signal S531 and/or current sense signal S535 Conducting and cut-off.When switching switch 1835 turn on when, electric current is flowed into by the first filtering output end 521, through switching switch 1835, Inductance 1832 and after the drive output 1521 of electric capacity 1834 and first, LED module and the second drive output 1522 by Two filtering output ends 522 flow out.Now, the voltage of the electric current and electric capacity 1834 that flow through inductance 1832 increases with the time, inductance 1832 and electric capacity 1834 be in energy storage state.When switching switch 1835 ends, inductance 1832 is in de-energized state, inductance 1832 Electric current reduced with the time.Now, the electric current of inductance 1832 is defeated through the first drive output 1521, LED module and the second driving Go out end 1522, fly-wheel diode 1833 to return inductance 1832 and form afterflow.
It is worth noting that, electric capacity 1834 is represented by dotted lines for that can omit in component, schema.When electric capacity 1834 is omitted, No matter switching switch 1835 is on or off, the electric current of inductance 1832 can flow through the first drive output 1521 and second Drive output 1522 is to drive LED module continuous illumination.
Again from the point of view of another angle, drive circuit 1830 passes through LED module electric current and remained unchanged, therefore for part For LED module (for example:The LED module such as white, red, blueness, green), the situation that colour temperature changes with size of current is i.e. It can improve, that is, LED module can maintain colour temperature constant under different brightness.And the inductance 1832 for playing the part of accumulator is being cut Release stored energy when switch 1835 ends is changed, on the one hand causes LED module to keep continuous illumination, on the other hand also causes Current Voltage on LED module will not rapid drawdown to minimum, and when switching switch 1835 is turned on again, Current Voltage is just not required to Come and gone from minimum to maximum, thereby, it is to avoid LED module discontinuously lights and improves the overall brightness of LED module and reduce most Low turn-on cycle and raising driving frequency.
Figure 12 F are referred to, are the circuit diagram of the drive circuit according to the utility model embodiment.In this implementation Example, drive circuit 1930 is decompression DC to-DC switching circuit, comprising controller 1931 and change-over circuit, and change-over circuit bag Containing inductance 1932, fly-wheel diode 1933, electric capacity 1934 and switching switch 1935.The filtering of the coupling of drive circuit 1,930 first is defeated Go out end 521 and second filtering output end 522, the filtered signal of reception is converted into drive signal, the is coupled in drive LED module between one drive output 1521 and the second drive output 1522.
One end of inductance 1932 couples the first filtering output end 521 and the second drive output 1522, and other end coupling is cut Change the first end of switch 1935.Second end of switching switch 1935 couples the second filtering output end 522, and control end coupling is controlled Device 1931 is on or off with the control signal according to controller 1931.The positive pole coupling inductance of fly-wheel diode 1933 1932 switch 1935 tie point with switching, and negative pole couples the first drive output 1521.The driving of the coupling of electric capacity 1,934 first is defeated Go out the drive output 1522 of end 1521 and second, the first drive output 1521 and the second drive output are coupled to stable The driving of LED module between 1522.
Controller 1931 controls switching switch 1935 according to current sense signal S531 and/or current sense signal S535 Conducting and cut-off.When switching switch 1935 turn on when, electric current is flowed into by the first filtering output end 521, and flow through inductance 1932, Flowed out after switching switch 1935 by the second filtering output end 522.Now, flow through the electric current of inductance 1932 increases with the time, inductance 1932 are in energy storage state；The voltage of electric capacity 1934 is reduced with the time, and electric capacity 1934 is in de-energized state, to maintain LED module It is luminous.When switching switch 1935 ends, inductance 1932 is in de-energized state, and the electric current of inductance 1932 is reduced with the time.Now, The electric current of inductance 1932 is through fly-wheel diode 1933, the first drive output 1521, LED module and the second drive output 1522 Return inductance 1932 and form afterflow.Now, electric capacity 1934 is in energy storage state, and the voltage of electric capacity 1934 increases with the time.
It is worth noting that, electric capacity 1934 is represented by dotted lines for that can omit in component, schema.When electric capacity 1934 is omitted, When switching switch 1935 is turned on, the electric current of inductance 1932 is not flow through the first drive output 1521 and the second drive output 1522 and LED module is not lighted.When switching switch 1935 ends, the electric current of inductance 1932 is flowed through through fly-wheel diode 1933 LED module and make LED module light.By the size of current for controlling the fluorescent lifetime of LED module and flowing through, LED can be reached The mean flow rate of module is stable in setting value, and reaches the effect of identical stabilized illumination.
Again from the point of view of another angle, drive circuit 1930 passes through LED module electric current and remained unchanged, therefore for part For LED module (for example:The LED module such as white, red, blueness, green), the situation that colour temperature changes with size of current is i.e. It can improve, that is, LED module can maintain colour temperature constant under different brightness.And the inductance 1932 for playing the part of accumulator is being cut Release stored energy when switch 1935 ends is changed, on the one hand causes LED module continuous illumination, on the other hand also causes LED Current Voltage in module will not rapid drawdown to minimum, and when switching switch 1935 is turned on again, Current Voltage be just not required to from Minimum comes and goes maximum, thereby, it is to avoid LED module discontinuously lights and improves the overall brightness of LED module and reduce minimum Turn-on cycle and raising driving frequency.
Coordinate Fig. 5 and Fig. 6, short circuit board 253 be distinguished into the first short circuit board for being connected with the long two ends of circuit board 251 and Second short circuit board, and the first short circuit board of short circuit board 253 that electronic building brick in power supply module is respectively set at And second on short circuit board.The length dimension of first short circuit board and the second short circuit board be able to can also be differed with rough consistent Cause.Typically, the first short circuit board (left side circuit of the right-hand circuit board of Fig. 5 short circuit board 253 and Fig. 6 short circuit board 253 Plate) length dimension for the second short circuit board length dimension 30%~80%.The length ruler of more preferably first short circuit board The 1/3~2/3 of the very little length dimension for being the second short circuit board.In this embodiment, the length dimension of the first short circuit board is substantially The half of the size of second short circuit board.The size of second short circuit board between 15mm~65mm (specifically regard application scenario and It is fixed).First short circuit board is arranged in the lamp holder of one end of LED straight lamps, and to be arranged at LED straight for the second short circuit board In the lamp holder of the relative other end of spot.
For example, the electric capacity of drive circuit is (for example：Electric capacity 1634 in Figure 12 C to Figure 12 F, 1734,1834,1934) Can be that two or more electric capacity is formed in parallel in practical application.The electric capacity of drive circuit is at least partly or complete in power supply module Portion is arranged on the first short circuit board of short circuit board 253.That is, rectification circuit, filter circuit, the inductance of drive circuit, control Device, switching switch, diode etc. may be contained within the second short circuit board of short circuit board 253.And inductance, controller, switching are opened Pass etc. is the higher component of temperature in electronic building brick, is arranged at from part or all of electric capacity on different circuit boards, can make electric capacity (especially electrochemical capacitor) is avoided because the higher component of temperature is impacted to the life-span of electric capacity, improves electric capacity reliability.Enter one Step, can also be spatially separated from rectification circuit and filter circuit because of electric capacity, solve the problems, such as EMI.
As described above, the electronic building brick of power supply module may be provided on the circuit board on lamp plate or in lamp holder.In order to increase The advantage of power supply module, some of which electric capacity can use patch capacitor (such as ceramic paster electric capacity) in embodiment, and it is set Put on the circuit board on lamp plate or in lamp holder.But the patch capacitor being set as is in use because piezo-electric effect can be sent Obvious noise, comfortableness when influence client uses.In order to solve this problem, in the LED straight lamps of this exposure, it can lead to Cross immediately below patch capacitor and suitable hole or groove are set, this circuit board that can change patch capacitor and carrying patch capacitor exists The vibrational system constituted under piezo-electric effect is so that substantially reduce sent noise.The shape at the edge or periphery of this hole or groove Can be approximately for example circular, in ellipse or rectangle, and the conductive layer in lamp plate or the circuit board in lamp holder, and in paster The lower section of electric capacity.
Figure 13 A are referred to, are the application circuit side of the power supply module of LED straight lamps according to the utility model embodiment Block schematic diagram.Compared to Fig. 8 C illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510, filter circuit 520 and LED illumination module 530, and also increase overvoltage crowbar 1570.The coupling of overvoltage crowbar 1,570 first filtering output The filtering output end 522 of end 521 and second, to detect filtered signal, and is higher than setting overpressure value in the level of filtered signal When, the level of strangulation filtered signal.Therefore, overvoltage crowbar 1570 can protect the component of LED illumination module 530 not because Cross high pressure and damage.
Figure 13 B are referred to, are the circuit diagram of the overvoltage crowbar according to the utility model embodiment.Overvoltage is protected Protection circuit 1670 includes voltage-regulator diode 1671, for example：Zener diode (Zener Diode), couples the first filtering output end 521 and second filtering output end 522.Voltage-regulator diode 1671 is in the first filtering output end 521 and the second filtering output end 522 Voltage difference (that is, the level of filtered signal) is turned on when reaching breakdown voltage, makes voltage difference strangulation on breakdown voltage.Collapse electricity Pressure is preferably in the range of 40-100V, more preferably 55-75V scope.
Figure 14 A are referred to, are the application circuit side of the power module of LED straight lamps according to the utility model embodiment Block schematic diagram.Compared to Fig. 8 C illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510 and filtered electrical Road 520, and also increase auxiliary power module 2510, the wherein power module of LED straight lamps can also include LED illumination module 530 members.Auxiliary power module 2510 is coupled between the first filtering output end 521 and the second filtering output end 522. Filtered signal on the first filtering output end 521 of detecting of auxiliary power module 2510 and the second filtering output end 522, and according to Detecting result decides whether to provide auxiliary power to the first filtering output end 521 and the second filtering output end 522.Believe after filtering Number stop providing or when exchange level is not enough, i.e., when the driving voltage of LED module is less than a boost voltage, auxiliary power module 2510 provide auxiliary power, make LED illumination module 530 can be with continuous illumination.Boost voltage is auxiliary according to the one of auxiliary power module Help supply voltage and determine.
Figure 14 B are referred to, are the application circuit side of the power supply module of LED straight lamps according to the utility model embodiment Block schematic diagram.Compared to Figure 14 A illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510, filtered electrical Road 520 and auxiliary power module 2510, and LED illumination module 530 also includes drive circuit 1530 and LED module 630.Auxiliary electricity Source module 2510 is coupled between the first drive output 1521 and the second drive output 1522.Auxiliary power module 2510 is detected The drive signal of first drive output 1521 and the second drive output 1522, and decide whether that offer is auxiliary according to detecting result Electric power is helped to the first drive output 1521 and the second drive output 1522.When drive signal stops providing or exchanges level not When sufficient, auxiliary power module 2510 provides auxiliary power, makes LED module 630 can be with continuous illumination.
In another exemplary embodiment, LED illumination module 530 or LED module 630 can only receive auxiliary power module 2510 accessory power supplys provided are as working power, and external drive signal is then used as auxiliary power module 2510 and filled Electricity is used.LED illumination module is lighted by the present embodiment is the auxiliary power that is provided only with auxiliary power module 2810 530, no matter that is, external drive signal provided by civil power or provided by ballast, be all first to auxiliary power module 2810 energy-storage units are charged, then unify to power to rear end by energy-storage units.Thereby, using the power module of the present embodiment The LED straight lamps of framework can the external drive signal that is provided of compatible civil power or ballast.
From the perspective of structure, because above-mentioned auxiliary power module 2510 is the output that is connected to filter circuit 520 Hold output end (the first drive output of (the first filtering output end 521 and the second filtering output end 522) or drive circuit 1530 1521 and second drive output 1522) between, therefore in an exemplary embodiment, its circuit can be placed in fluorescent tube (example The position of LED illumination module 530 or LED module 630 is adjacent in this way), use and avoid long cabling from causing power delivery to damage Consumption.In another exemplary embodiment, the circuit of auxiliary power module 2510 can also be located in lamp holder so that accessory power supply The heat energy produced in discharge and recharge of module 2510 is less susceptible to influence running and the luminous efficacy of LED module.Figure 14 C are referred to, For the circuit diagram of the auxiliary power module according to the utility model embodiment.The auxiliary power module 2610 of the present embodiment In the configuration that can be applied to above-mentioned auxiliary power module 2510.Auxiliary power module 2610 includes energy-storage units 2613 and voltage Circuit for detecting 2614.Auxiliary power module 2610 simultaneously has accessory power supply anode 2611 and accessory power supply negative terminal 2612 with coupling respectively Connect the first filtering output end 521 and the second filtering output end 522 or the first drive output 1521 and the second drive output 1522.The level of signal on the detecting accessory power supply of voltage detection circuit 2614 anode 2611 and accessory power supply negative terminal 2612, with certainly It is fixed whether outwards to discharge the electric power of energy-storage units 2613 through accessory power supply anode 2611 and accessory power supply negative terminal 2612.
In the present embodiment, energy-storage units 2613 are battery or super capacitor.Voltage detection circuit 2614 is more in auxiliary electricity When the level of the signal of source anode 2611 and accessory power supply negative terminal 2612 is higher than the voltage of energy-storage units 2613, with accessory power supply just Signal on end 2611 and accessory power supply negative terminal 2612 charges to energy-storage units 2613.When accessory power supply anode 2611 and auxiliary electricity When the signal level of source negative terminal 2612 is less than the voltage of energy-storage units 2613, energy-storage units 2613 through accessory power supply anode 2611 and Accessory power supply negative terminal 2612 is to external discharge.
Voltage detection circuit 2614 includes diode 2615, bipolar junction transistors 2616 and resistance 2617.Diode 2615 positive pole couples the positive pole of energy-storage units 2613, negative pole coupling accessory power supply anode 2611.The negative pole of energy-storage units 2613 Couple accessory power supply negative terminal 2612.The collector coupling accessory power supply anode 2611 of bipolar junction transistors 2616, emitter-base bandgap grading coupling The positive pole of energy-storage units 2613.The one end of resistance 2617 coupling accessory power supply anode 2611, other end coupling bipolar junction crystal The base stage of pipe 2616.Resistance 2617 makes double when the collector of bipolar junction transistors 2616 is higher than one conducting voltage of emitter-base bandgap grading Carrier junction transistor 2616 is turned on.When the power supply of driving LED straight lamps is normal, filtered signal is through the first filtering output end 521 charge with the second filtering output end 522 and the bipolar junction transistors 2616 turned on to energy-storage units 2613, or driving letter Number through the first drive output 1521 and the second drive output 1522 and conducting bipolar junction transistors 2616 to energy storage Unit 2613 charges, untill the difference of collector-shooting of bipolar junction transistors 2616 is equal to or less than conducting voltage.When When filtered signal or drive signal stop providing or level declines suddenly, energy-storage units 2613 provide electricity by diode 2615 Power is to LED illumination module 530 or LED module 630 to remain luminous.
It is worth noting that, ceiling voltage stored during the charging of energy-storage units 2613 will be electric at least below auxiliary is put on The conducting voltage of source anode 2611 and one bipolar junction transistors 2616 of voltage of accessory power supply negative terminal 2612.Energy-storage units The voltage exported during 2613 electric discharge by accessory power supply anode 2611 and accessory power supply negative terminal 2612 is less than the electricity of energy-storage units 2613 Press the threshold voltage of a diode 2615.Therefore, when auxiliary power module starts power supply, the voltage provided will be relatively low (summation for being approximately equal to the threshold voltage of diode 2615 and the conducting voltage of bipolar junction transistors 2616).In Figure 14 B institutes In the embodiment shown, voltage reduction can be decreased obviously the brightness of LED module 630 when auxiliary power module is powered.In this way, when auxiliary When helping power module applied to emergency lighting system or normal bright illuminator, user is known that key lighting power supply, for example：City Electricity, it is abnormal, and the necessary precautionary measures can be carried out.
Figure 14 A to Figure 14 C embodiments configuration in addition to it can be applicable to the emergency power supply of single fluorescent tube and supply, it can be with Apply under the light fixture framework of many fluorescent tubes.It is real in an example by taking the light fixture of the LED straight lamp arranged in parallel with 4 as an example Apply in example, 4 LED straight lamps can be that one of them includes auxiliary power module.When external drive abnormal signal, Including the LED straight lamps of auxiliary power module can persistently be lit, and other LED straight lamps can extinguish.In view of illumination Uniformity, the centre position of light fixture can be disposed on by being provided with the LED straight lamps of auxiliary power module.
In another exemplary embodiment, 4 LED straight lamps can plurality of include auxiliary power module. When external drive abnormal signal, the LED straight lamps for including auxiliary power module can be all while be lighted by auxiliary power. Consequently, it is possible to which in the case of emergent, light fixture integrally stills provide certain brightness.In view of the uniformity of illumination, if Be exemplified by setting 2 LED straight lamps to include auxiliary power module, this two LED straight lamps can be be not provided with it is auxiliary The LED straight lamps of power module are helped to be staggered configuration.
In another exemplary embodiment, 4 LED straight lamps can plurality of include auxiliary power module. When external drive abnormal signal, which part LED straight lamps can be lighted first by auxiliary power, and through after a period of time (being, for example), another part LED straight lamps are lighted by auxiliary power again.Consequently, it is possible to which the present embodiment can pass through and other fluorescent tubes Coordinate the mode of offer auxiliary power order so that lighting hours of the LED straight lamps under emergency rating is extended.
Wherein, the embodiment for coordinating to provide auxiliary power order from other fluorescent tubes can be passed through in the different fluorescent tubes of setting Auxiliary power module the startup time, or set the mode of controller to link up auxiliary power module through in each fluorescent tube Between operating state, the utility model is any limitation as not to this.
Figure 14 D are referred to, Figure 14 D are the application of the power supply module of the LED straight lamps according to the utility model embodiment Circuit box schematic diagram.The LED straight lamps of the present embodiment include the first rectification circuit 510, filter circuit 520, LED illumination module 530 and auxiliary power module 2710.The LED illumination module 530 of the present embodiment can only include LED module or including drive circuit With LED module, the utility model is not limited.Compared to Figure 14 B illustrated embodiments, the auxiliary power module of the present embodiment 2710 are connected between the first pin 501 and the second pin 502, use reception external drive signal, and based on outside drive Dynamic signal carries out the action of discharge and recharge.Wherein, auxiliary power module 2710 includes energy-storage units and voltage detection circuit, electricity Pressure circuit for detecting can detect the external drive signal on the first pin 501 and the second pin 502, and be according to detecting result decision It is no to make energy-storage units provide input of the auxiliary power to rectification circuit 510.When external drive signal stops providing or exchange standard When position is not enough, the energy-storage units of auxiliary power module 2710 provide auxiliary power, LED illumination module 530 is based on auxiliary Auxiliary power that energy-storage units are provided and continuous illumination.In actual applications, the energy storage list to provide auxiliary power Member can be implemented using energy storage components such as battery or super capacitors, but the utility model is not limited.
In an exemplary embodiment, LED module be driven externally brightness that signal lights with by auxiliary power light it is bright Degree is different.Thereby, user can be when observing that lighting tube brightness changes, and the problem of having had found that it is likely that external power source abnormal electrical power supply is sent out It is raw, so that queueing problem as quickly as possible.In other words, the auxiliary power module 2710 of the present embodiment can occur by outside drive signal Used when abnormal there is provided the power auxiliary power different from external drive signal to LED module, so as to make LED module have not With brightness, using as external drive signal whether the instruction of normal supply.For example, in the present embodiment, LED module is worked as It is that when being lighted according to external drive signal, its brightness may be, for example, 1600-2000 lumens；When LED module is according to accessory power supply When the auxiliary power that module 2710 is provided is lighted, its brightness may be, for example, 200-250 lumens.From auxiliary power module 2710 From the point of view of angle, in order to allow LED module that there is the brightness of 200-250 lumens, the output work of auxiliary power module 2710 when lighting Rate can be, for example, 1 watt to 5 watts, but the utility model is not limited.In addition, the energy storage component in auxiliary power module 2710 Capacitance may be, for example, 1.5 watts of hours to 7.5 watts more than hour, using makes LED module can be based on auxiliary power in brightness Persistently lighted under 200-250 lumens more than 90 minutes, but the utility model is equally not limited.
From the perspective of structure, as shown in fig. 14e, Figure 14 E are the accessory power supply according to the utility model embodiment Configuration schematic diagram of the module in fluorescent tube.In the present embodiment, described auxiliary power module 2710 as foregoing except that can implement Outside example configuration in the lamp vessel 1, it can also be configured in lamp holder 3.Under this configuration, auxiliary power module 2710 can be from Lamp holder 3 is connected internally to corresponding first pin position 501 and crus secunda position 502, uses reception and provides to the first pin position 501 and second External drive signal on pin position 502.It is placed in compared to by auxiliary power module 2710 for the configuration in fluorescent tube 1, due to this The auxiliary power module 2710 of embodiment is disposed in the lamp holder 3 of the both sides of fluorescent tube 1, therefore can be apart from the LED module in fluorescent tube 1 Farther out so that the heat energy produced in discharge and recharge of auxiliary power module 2710 is less susceptible to influence the running of LED module with lighting Efficiency.
In another embodiment, the auxiliary power module 2710 also may be provided at the lamp socket corresponding with LED straight lamps In, as shown in fig. 14f, Figure 14 F are to be illustrated according to configuration of the auxiliary power module of the utility model embodiment in lamp socket Figure.Lamp socket 1_LH includes being equipped with power circuit in pedestal 101_LH and connection socket 102_LH, wherein pedestal 101_LH, and And suitable for it is sealed/conform on the fixed object such as metope or ceiling.Connect on socket 102_LH have with LED straight lamps The corresponding slot of pin (such as the first pin 501 and the second pin 502), wherein slot can be mutually electric with corresponding power circuit Property connection.In the present embodiment, connection socket 102_LH can be integrally formed with pedestal 101_LH, or removably install To pedestal 101_LH, the utility model is not limited.
When LED straight lamps load onto lamp socket 1_LH, the pin on two ends lamp holder 3 can be plugged to corresponding connection socket respectively In 102_LH slot, use and be electrically connected with corresponding power circuit, it is corresponding to make external drive signal may be provided to On pin.In the present embodiment, auxiliary power module 2710 is provided in connection socket 102_LH, and connects power circuit To receive external drive signal.By taking the configuration of left side lamp holder 3 as an example, when the first pin 501 and the second pin 502 are plugged to left side When connecting socket 102_LH slot, auxiliary power module 2710 can be electrically connected with the first pin 501 by slot and be connect with second Pin 502, and then realize that the connection such as Figure 14 D is configured.
It is placed in compared to by auxiliary power module 2710 for the embodiment in lamp holder 3, because connection socket 102_LH can Dismountable configuration is designed as, therefore in an exemplary embodiment, connection socket 102_LH and auxiliary power module 2710 can be with A modular configuration is integrated into, so as to when auxiliary power module 2710 breaks down or the life-span uses up, through replacing Modular connection socket 102_LH is to take on new auxiliary power module 2710 to be continuing with, whole without replacing LED straight lamps.In other words, the configuration of the present embodiment is except with can reduce the heat energy pair produced by auxiliary power module 2710 Outside the advantage of LED module influence, more through modular design the replacing of auxiliary power module 2710 can be made more simple Just, without being to change whole branch LED straight lamps because of the generation problem of auxiliary power module 2710, put forward the durability of LED straight lamps It is high.
The configuration of Figure 14 D to Figure 14 F embodiments is in addition to it can be applicable to the emergency power supply of single fluorescent tube and supply, and its is same It can apply under many fluorescent tubes framework in parallel to provide emergent auxiliary power.Specifically, in multiple LED straight lamps simultaneously Under the framework of connection, the corresponding pin of each LED straight lamps can be connected with each other, uses reception identical external drive signal.Citing comes Say, the first pin 501 of each LED straight lamps can be connected with each other, and the second pin of each LED straight lamps can be connected with each other, with This analogizes.Under configuring herein, auxiliary power module 2710 can be equivalent to be connected to the pin of every LED straight lamps of parallel connection On.Therefore, as long as the power output of auxiliary power module 2710 lights all LED straight lamps in parallel enough, you can in outside (that is, external drive signal can not regular supply) be straight to light all LED in parallel there is provided auxiliary power when power supply occurs abnormal Spot is used as emergency lighting.In actual applications, if by taking 4 LED straight lamps framework in parallel as an example, auxiliary power module 2710 may be designed as with capacitance being 1.5 watts of hours to the energy-storage units that 7.5 watts of hours and power output are 1 watt to 5 watts. Under this specification, when auxiliary power module 2710 provides auxiliary power to light LED module, light fixture integrally can at least have The brightness of 200-250 lumens, and sustainable light 90 minutes.
Under the light fixture framework of many fluorescent tubes, similar to described in Figure 14 A to Figure 14 C embodiments, the present embodiment can be in lamp Auxiliary power module is set in wherein one fluorescent tube of tool, or auxiliary power module is set in many fluorescent tubes of light fixture, its In for optical uniformity consider fluorescent tube configuration mode be equally applicable in the present embodiment.The present embodiment and earlier figures 14A to figure Even if 14C embodiments apply the Main Differences under the light fixture framework of many fluorescent tubes to be that the only single fluorescent tube of the present embodiment is provided with Auxiliary power module, it still can pass through auxiliary power module to other lamp tube power supplies.
It should be noted herein that although explanation herein is illustrated by taking 4 LED straight lamp parallel configurations as an example, this Art personnel are after above-mentioned explanation is considered in light of actual conditions, it should be appreciated that how LED straight lamps at 2,3 or more than 4 are in parallel Under framework, implemented from suitable energy-storage units, as long as therefore auxiliary power module 2710 can supply electricity to branched parallel connection simultaneously One of LED straight lamps or multiple, to make corresponding LED straight lamps to react on auxiliary power with certain luminance Implementation aspect, come under the scope described by the present embodiment.
In another exemplary embodiment, Figure 14 D to 14F auxiliary power module 2510,2610,2710 can be according further to Some modulating signals use to decide whether to provide auxiliary power to LED straight lamps.Specifically, described modulating signal can be anti- Answer an indication signal of lamp switch switching state.For example, the level of described modulating signal can be according to the switching of lamp switch It (is, for example, that low logic is accurate to be adjusted to the first level (being, for example, high logic level) or second level different from the first level Position).When lamp switch is switched to the position lighted by user, described modulating signal can be adjusted to the first level；Work as user When lamp switch to be switched to the position of closing, described modulating signal can be adjusted to the second level.In other words, when a modulating signal is During the first level, i.e., indicator light switch is switched to the position lighted；When a modulating signal is the second level, i.e. indicator light switch It is switched to the position of closing.Wherein, producing for point modulating signal can come real by the circuit of a detecting lamp switch switching state It is existing.
In another exemplary embodiment, auxiliary power module 2510,2610,2710 can also include a lighting decision circuitry, It is used to receiving point modulating signal, and level and the detecting result of voltage detection circuit according to a modulating signal decide whether order Energy-storage units supply electricity to rear end and used.Specifically, the detecting result of level and voltage detection circuit based on a modulating signal can There can be following three state：(1) point modulating signal is the first level and external drive signal is normally provided；(2) point modulating signal is the One level and external drive signal stopping offer or exchange level are not enough；And (3) point modulating signal is the second level and outside drive Dynamic signal stops providing.Wherein, state (1) is that user opens lamp switch and external power source and powered normal situation, state (2) Lamp switch is opened for user but externally fed generation exception, state (3) are that user's closing lamp switch causes external power source quilt Stop providing.
In this exemplary embodiment, state (1) and state (3) come under normal state, i.e., when user turns on light outside External power source stops providing when power supply is normally provided and user turns off the light.Therefore, under state (1) and state (3), auxiliary Power module will not provide auxiliary power to rear end.In particular, lighting decision circuitry can be according to state (1) and state (3) Judged result, make energy-storage units not powered to rear end.Wherein, under state (1) it is directly inputted into by external drive signal Rectification circuit 510, and external drive signal is to energy-storage units charging；It is that external drive signal stops offer under state (3), Therefore energy-storage units are not charged.
Under state (2), its represent user when turning on light external power source not normal power supply to LED straight lamps, so when Lighting decision circuitry can make energy-storage units power rear end so that the base of LED illumination module 530 according to the judged results of state (2) The auxiliary power provided in energy-storage units lights.
Base this, under the application of the lighting decision circuitry, LED illumination module 530 can have three sections of different brightness Change.When first paragraph is external power source normal power supply, LED illumination module 530 has the first brightness, and (such as 1600-2200 flows It is bright), when second segment is that the non-normal power supply of external power source and changing is powered with auxiliary power, LED illumination module 530 has the second brightness (such as 200-250 lumens), the 3rd section is that user voluntarily closes power supply so that external power source is not provided with to LED straight lamps, Now LED illumination module 530 has the 3rd brightness (not lighting LED module).
In particular, from the point of view of collocation Figure 15 C embodiments, the lighting decision circuitry may be, for example, to be serially connected in accessory power supply On-off circuit (not illustrating) between anode 2611 and accessory power supply negative terminal 2612, the control end of the on-off circuit receives lighting Signal.Wherein, when a modulating signal is the first level, the on-off circuit can react on a modulating signal and turn on, and then outside During portion's drive signal regular supply, energy-storage units 2613 are charged with accessory power supply negative terminal 2612 through accessory power supply anode 2611 (state 1)；Or when outside drive signal stops providing or exchange level is not enough, make energy-storage units 2613 through accessory power supply just End 2611 provides auxiliary power with accessory power supply negative terminal 2612 and uses (shape to the LED illumination module 530 or LED module 630 of rear end State 2).On the other hand, when a modulating signal is the second level, the on-off circuit can react on a modulating signal and end, now Even if external drive signal stops providing or exchange level is not enough, energy-storage units 2613 also will not provide auxiliary power to rear end.
Figure 14 G are referred to, Figure 14 G are the application of the power supply module of the LED straight lamps according to the utility model embodiment Circuit box schematic diagram.The LED straight lamps of the present embodiment include rectification circuit 510 ', filter circuit 520, LED illumination module 530 And auxiliary power module 2810.The LED illumination module 530 of the present embodiment can only include LED module or including drive circuit with LED module, the utility model is not limited.Rectification circuit 510 ' can be for example as shown in fig. 9d there is the whole of three bridge arms Current circuit 910, wherein rectification circuit 510 ' have three input signal receiving terminals P1, P2 and P3.Input signal receiving terminal P1 connects The first pin 501 is connected to, input signal receiving terminal P2 is connected to the second pin 502 and auxiliary power module 2810, and inputs Signal receiving end P3 is connected to auxiliary power module 2810.The auxiliary power module 2810 of the present embodiment may, for example, be one should Anxious ballast.
In the present embodiment, input signal receiving terminal P2 is the shared of external drive signal and auxiliary power module 2810 End, wherein external drive signal can be supplied to rectification circuit 510 ' by input signal receiving terminal P1 and P2, and accessory power supply Module 2810 then can be supplied to rectification circuit 510 ' by signal receiving end P3 and P2.According to the configuration of the present embodiment, in outside Drive signal can normal power supply when, rectification circuit 510 ' can pass through signal receiving end P1 with corresponding to P2 bridge arm progress all-wave it is whole Stream, uses supplying electricity to LED illumination module 530 and use.When outside drive signal is abnormal, rectification circuit 510 ' can pass through signal and connect Receiving end P3 and P2 receive accessory power supply, use supplying electricity to LED illumination module 530 and use.Wherein, the diode of rectification circuit 510 ' One-way conduction characteristic can isolate external drive signal with the input of accessory power supply so that both will not interact, and equally It can reach the effect that accessory power supply is provided when outside drive signal occurs abnormal.In addition, in actual applications, rectification circuit 510 ' can be implemented from fast recovery diode, use the high frequency characteristics in response to emergency ballast output current.
It should further be appreciated that the auxiliary power module 2810 of the present embodiment can also reference picture 14E in hardware configuration With 14F configuration, and identical beneficial effect can be obtained.
Figure 15 A are referred to, are the application circuit side of the power supply module of LED straight lamps according to the utility model embodiment Block schematic diagram.Compared to Fig. 8 C illustrated embodiments, the LED straight lamps of the present embodiment include the first rectification circuit 510, filter circuit 520 and detecting module 2520 is installed in also increase, wherein power module can also include the members of LED illumination module 530.Peace Fill detecting module 2520 and the first rectification circuit 510 of coupling of sense terminal 2521 is installed through first, and sense terminal is installed through second 2522 coupling filter circuits 520.The detecting of detecting module 2520 is installed and flows through the first installation sense terminal 2521 and the second installation detecting The signal at end 2522, and decide whether that cut-off external drive signal flows through LED straight lamps according to detecting result.When LED straight lamps When being not yet formally installed on lamp socket, install that detecting module 2520 can detect less current signal and to judge that signal flows through too high Impedance, now installing the cut-off of detecting module 2520 stops operation LED straight lamps.If it is not, installing detecting module 2520 judges LED Straight lamp is correctly installed on lamp socket, is installed detecting module 2520 and is maintained conducting to make LED straight lamp normal operatings.That is, when flowing through Described first installs sense terminal and described second installs an electric current of sense terminal greater than or equal to a set-mounted electric current (or one Current value) when, detecting module is installed and judges that LED straight lamps are correctly installed on lamp socket and turned on, LED straight lamps is operated in one Conducting state；When the electric current for flowing through the first installation sense terminal and the second installation sense terminal is set less than the installation When determining electric current (or current value), detecting module is installed and judges that LED straight lamps are not installed on lamp socket correctly and ended, makes LED straight Spot enters a not on-state.In other words, impedance of the detecting module 2520 based on detecting is installed and judges on or off, make LED straight lamps operate in conducting or enter not on-state.Thereby, user can be avoided not yet correctly to pacify in LED straight lamps The problem of being got an electric shock during loaded on lamp socket because of false touch LED straight lamp current-carrying parts.
In another exemplary embodiment, because when human contact's fluorescent tube, the impedance of human body can cause on electric power loop Equiva lent impedance changes, and installing detecting module 2520 can judge whether user contacts by the voltage change on detecting electric power loop Fluorescent tube, it can equally realize above-mentioned electroshock-proof function.In other words, in the utility model embodiment, detecting module is installed 2520 can judge whether fluorescent tube is properly installed and whether is user through detecting electric signal (including voltage or electric current) The current-carrying part of false touch fluorescent tube in the case where fluorescent tube is not installed correctly.
Figure 15 B are referred to, are the circuit diagram of the installation detecting module according to the utility model embodiment.Installation is detectd Survey module and occur module 2540, testing result latch cicuit 2560 and inspection comprising on-off circuit 2580, detection pulse (pulse) Survey decision circuit 2570.Detect that decision circuit 2570 (through switch coupling end 2581 and on-off circuit 2580) coupling first is installed Sense terminal 2522 is installed in sense terminal 2521 and coupling second, and detecting is installed to detect the first installation sense terminal 2521 and second Signal between end 2522.Detect that result end 2571 couples testing result latch cicuit to decision circuit 2570 after testing simultaneously 2560, by testing result signal, result end 2571 is sent to testing result latch cicuit 2560 after testing.Detect pulse generation Module 2540 couples testing result latch cicuit 2560 by pulse signal output end 2541.Testing result latch cicuit 2560 Testing result is latched according to testing result signal (or testing result signal and pulse signal), result latches end 2561 and coupled after testing On-off circuit 2580, on-off circuit 2580 is transmitted or is reflected into by testing result.On-off circuit 2580 is according to testing result, certainly Surely make the first installation sense terminal 2521 and second that on or off between sense terminal 2522 is installed.
Figure 15 C are referred to, are the circuit diagram of the detection pulse generating module according to the utility model embodiment.Inspection Survey pulse generating module 2640 comprising electric capacity 2642 (or first capacitor), 2645 (or second capacitors) and 2646 (or Claim the 3rd capacitor), resistance 2643 (or first resistor device), 2647 (or second resistance devices) and 2648 (or the 3rd electricity Hinder device), buffer (buffer) 2644 (or first buffer) and 2651 (or second buffers), reverser 2650, two Pole pipe 2649 (or being the first diode) and OR gate (OR gate) 2652 (or being the first OR gate).Using or operating In, electric capacity 2642 and resistance 2643 are series at a driving voltage (be for example referred to as VCC, and often ordered as a high levle) and reference Between current potential (herein using the current potential on ground as embodiment), its tie point couples the input of buffer 2644.The coupling of resistance 2647 It is connected to the input of a driving voltage (can be described as VCC) and reverser 2650.Resistance 2648 is coupled to the input of buffer 2651 Between end and a reference potential (herein using the current potential on ground as embodiment).The positive ending grounding of diode, negative terminal is also coupled to buffering The input of device 2651.One end of electric capacity 2645 and 2646 one end couple the output end of buffer 2644, electric capacity 2645 jointly The other end connect the input of reverser 2650, and the other end of electric capacity 2646 then couples the input of buffer 2651.Instead The output end of output end and buffer 2651 to device 2650 couples the input of OR gate 2652.It is noted that this case this In specification, current potential its " high levle " is relative to for another current potential in circuit or certain reference potential with " low level " (can be described as " high level " and " low level " sometimes), and again can be respectively as " logic high levle " and " logic low level ".
When one end lamp holder of LED straight lamps inserts pair of lamp socket and other end lamp holder human body in electrical contact or LED straight lamps When end lamp holder inserts lamp socket, LED straight lamps are powered.Now, detecting module is installed and enters detection-phase.Electric capacity 2642 and resistance 2643 tie point level is at the beginning high (being equal to driving voltage VCC), is gradually reduced after with the time, is finally down to zero.It is slow The input coupling capacitance 2642 of device 2644 and the tie point of resistance 2643 are rushed, therefore exports high levle signal at the beginning, and When the tie point level of electric capacity 2642 and resistance 2643 is down to low logic and judges level, low level signal is changed into.It is, slow Rush device 2644 and produce an input pulse signal, low level (stopping the output input pulse signal) is persistently maintained afterwards.It is described The pulse width of input pulse signal is equal to (initial setting) time cycle, and the time cycle is by the appearance of electric capacity 2642 Value and the resistance of resistance 2643 are determined.
Then illustrate that buffer 2644 produces the operation in the setting time cycle of pulse signal.Due to electric capacity 2645 and resistance 2647 one end is equal to driving voltage VCC, therefore the connection end of electric capacity 2645 and resistance 2647 is also high levle.In addition, electric One end ground connection of resistance 2648, one end of electric capacity 2646 receives the pulse signal of buffer 2644.So electric capacity 2646 and resistance 2648 connection end in high levle at the beginning, then with the time gradually on be down to zero and (store and be equal or close to time electric capacity Driving voltage VCC voltage).Therefore, the output of reverser 2650 low level signal, and buffer 2651 then exports high levle letter Number, and make OR gate 2652 in the output high levle signal of pulse signal output end 2541 (the first pulse signal).Now, testing result Latch cicuit 2560 latches testing result for the first time according to testing result signal and pulse signal.When electric capacity 2646 and resistance 2648 The level of connection end when being down to low logic and judging level, buffer 2651 switchs to export low level signal, and makes OR gate 2652 In the output low level of pulse signal output end 2541 signal (stopping the first pulse signal of output).The pulse that OR gate 2652 is exported The pulsewidth of signal is determined by the capacitance of electric capacity 2646 and the resistance of resistance 2648.
Then the operation after the stopping output pulse signal of buffer 2644, the i.e. operation into the operational phase are illustrated in. Because electric capacity 2646 stores the voltage close to driving voltage VCC, thus in buffer 2644 output switched to by high levle it is low The moment of level, electric capacity 2646 and the level of the connection end of resistance 2648 can be less than zero, and fast to electric capacity via diode 2649 Speed charges and the level of connection end is retracted zero.Therefore, buffer 2651 still maintains to export low level signal.
On the other hand, moment of low level is switched to by high levle in the output of buffer 2644, one end of electric capacity 2645 Level reduces by zero by driving voltage VCC moments, and the connection end for making electric capacity 2645 and resistance 2647 is low level.Reverser 2650 Output signal switchs to high levle, and OR gate is exported high levle (the second pulse signal).Now, testing result latch cicuit 2560 Testing result is latched according to testing result signal and pulse signal for the second time.Then, resistance 2647 charges to electric capacity 2645, makes electricity The level for holding the connection end of 2645 and resistance 2647 is gradually increasing with the time and arrived equal to driving voltage VCC.When appearance 2645 and electricity When the level of the connection end of resistance 2647 rises paramount logic judgment level, reverser 2650 exports low level once again, and makes OR gate 2652 stop the second pulse signal of output.The pulsewidth of second pulse signal is by the capacitance of electric capacity 2645 and the resistance institute of resistance 2647 Determine.
As described above, detection pulse generating module 2640 can produce the pulse signal-the of two high levles in detection-phase One pulse signal and the second pulse signal, are exported by pulse signal output end 2541, and the first pulse signal and the second pulse A setting time interval, the main capacitance and the resistance of resistance 2643 by electric capacity 2642 in setting time interval are spaced between signal To determine.
And in entering the operational phase after detection-phase, detection pulse generating module 2640 no longer produces pulse signal, and tie up Pulse signal output end 2541 is held for low level.
Figure 15 D are referred to, are the circuit diagram of the detection decision circuit according to the utility model embodiment.Detection is sentenced Determine circuit 2670 and include comparator 2671 (or first comparator) and resistance 2672 (or the 5th resistor).Comparator 2671 end of oppisite phase, which is received, refers to level signal Vref, and non-oppisite phase end is through the ground connection of resistance 2672 and couples switch coupling end simultaneously 2581.Please referring also to Figure 15 A, the signal for flowing into on-off circuit 2580 by the first installation sense terminal 2521 can be coupled via switch End 2581 exports and flows through resistance 2672.When the electric current for flowing through resistance 2672 it is excessive (that is, greater than or equal to set-mounted electric current, For example：Current value 2A) and the level on resistance 2672 (is may correspond to described two when being higher than the level with reference to level signal Vref Lamp holder is correctly inserted into the lamp socket), comparator 2671 produces the testing result signal of high levle and defeated by testing result end 2571 Go out.For example, when LED straight lamps are correctly installed on lamp socket, comparator 2671 can export high levle in testing result end 2571 Testing result signal.When the electric current deficiency for flowing through resistance 2672 makes the level on resistance 2672 be higher than with reference to level signal Vref Level when (may correspond to only one of which lamp holder and be correctly inserted into the lamp socket), comparator 2671 produce low level detection Consequential signal is simultaneously exported by testing result end 2571.For example, when LED straight lamps are not correctly installed on lamp socket, or one end peace When loaded on lamp socket, the other end is through human body grounding, electric current makes comparator 2671 export low standard in testing result end 2571 by too small The testing result signal of position.
Figure 15 E are referred to, are the circuit diagram of the testing result latch cicuit according to the utility model embodiment.Inspection Survey result latch cicuit 2660 and include D flip-flop (D Flip-flop) 2661 (or first D flip-flop), resistance 2662 (or the 4th resistor) and OR gate 2663 (or second OR gate).Clock input (CLK) coupling of D flip-flop 2661 Testing result end 2571, input D coupling driving voltages VCC.When testing result end 2571 exports the testing result letter of low level Number when, D flip-flop 2661 in output end Q export low level signal；When testing result end 2571 exports the detection knot of high levle During fruit signal, D flip-flop 2661 exports high levle signal in output end Q.Resistance 2662 is coupled to the defeated of D flip-flop 2661 Go out to hold between Q and reference potential (such as current potential).When the first of the output of the return pulse signal output end 2541 of OR gate 2663 Pulse signal or the second pulse signal, or D flip-flop 2661 is when the high levle signal that output end Q is exported, in testing result Latch the testing result latch signal that end 2561 exports high levle.Because detection pulse generating module 2640 is defeated only in detection-phase When going out the first pulse signal or the second pulse signal, the leading output of OR gate 2663 high levle testing result latch signal, and remaining Time (include detection-phase after operational phase) by D flip-flop 2661 dominate testing result latch signal for high levle or Low level.Therefore, when testing result end 2571 did not occurred the testing result signal of high levle, D flip-flop 2661 is in defeated Go out to hold Q to maintain low level signal, and testing result is latched end 2561 and also maintain the testing result of low level to lock in the operational phase Deposit signal.Conversely, when testing result end 2571 was when there is the testing result signal of high levle, the meeting of D flip-flop 2661 Latch and maintain high levle signal in output end Q.In this way, testing result, which is latched when end 2561 enters the operational phase, also maintains Gao Zhun The testing result latch signal of position.
Figure 15 F are referred to, are the circuit diagram of the on-off circuit according to the utility model embodiment.On-off circuit 2680 can include a transistor (transistor), such as bipolar junction transistors 2681 (or the first transistor) conduct One power transistor (power transistor).Power transistor can handle high current and power, be particularly used to switch electricity Lu Zhong.Sense terminal 2521 is installed in the collector coupling first of bipolar junction transistors 2681, and base stage coupling testing result latches end 2561, and emitter-base bandgap grading switch coupling end 2581.When detection pulse generating module 2640 produces the first pulse signal or the second pulse letter Number when, of short duration conducting is detected detection decision circuit 2670 by bipolar junction transistors 2681, to determine testing result Latch signal is high levle or low level.High levle is exported when testing result latch cicuit 2660 latches end 2561 in testing result Testing result latch signal when, bipolar junction transistors 2681 make conducting the first installation sense terminal 2521 and second Conducting between sense terminal 2522 is installed.Low level is exported when testing result latch cicuit 2660 latches end 2561 in testing result During testing result latch signal, bipolar junction transistors 2681 make cut-off the first installation sense terminal 2521 and the second peace Fill cut-off between sense terminal 2522.
Because external drive signal is AC signal, when being detected in order to avoid detection decision circuit 2670, external drive letter Number level just zero crossings cause detect mistake.Therefore, detection pulse generating module 2640 produces the first pulse letter Number and the second pulse signal so that detection decision circuit 2670 detect twice, the standard of external drive signal during avoiding single from detecting Position is just the problem of zero crossings.Preferably, the generation time difference of the first pulse signal and the second pulse signal is not institute And the 180 degree phase difference of external drive signal described in non-corresponding the integer multiple of the cycle half of external drive signal is stated, i.e., Integer multiple.In this way, during the generation of one of the first pulse signal and the second pulse signal, if unfortunate external drive signal is zero Near point, external drive signal can be avoided during another generation also in zero crossings.
The generation time of above-mentioned first pulse signal and the second pulse signal is poor, i.e., setting time interval can be with formula table Show as follows：
Setting time interval=(X+Y) (T/2)
Wherein, T is the cycle of external drive signal, and X is the integer more than or equal to zero, 0<Y<1.
Y preferably scopes are between 0.05-0.95, between more preferably 0.15-0.85.
Furthermore, when entering detection-phase in order to avoid installing detecting module, driving voltage VCC level is too low to cause peace The circuit logic misjudgment of dress detecting module is begun to ramp up.Driving voltage is may be set in the generation of the first pulse signal VCC is reached or produced during higher than a predetermined level, is reached driving voltage VCC and is detected decision circuit 2670 just after enough levels Carry out, to avoid the circuit logic misjudgment that detecting module is installed caused by level is not enough.
Understand according to the above description, when LED straight lamps one end lamp holder insertion lamp socket and other end lamp holder is suspension joint or electricity Property contact human body when, detection decision circuit is exported the testing result signal of low level because impedance is big.Testing result latches electricity The detection of low level is latched into the testing result signal of low level according to the pulse signal of detection pulse generating module in road As a result latch signal, and also maintain testing result when the operational phase.In this way, on-off circuit can be made to maintain cut-off and avoid continuing It is powered.It so can also avoid human electric shock possible, so as to meet the requirement of safety.And when the two ends lamp of LED straight lamps Head is when being correctly inserted into lamp socket, makes the detection that detection decision circuit exports high levle because the impedance of LED straight lamps circuits itself is small Consequential signal.Testing result latch cicuit is according to testing result signal of the pulse signal to high levle for detecting pulse generating module The testing result latch signal of high levle is latched into, and testing result is also maintained when the operational phase.In this way, switch can be made Circuit maintains conducting and is persistently powered, and makes the normal operating when operational phase of LED straight lamps.
In other words, in certain embodiments, when the lamp holder insertion lamp socket described in one end of the LED straight lamps is another When lamp holder described in one end is suspension joint or human body in electrical contact, the testing result letter of the detection decision circuit input low level Number arrive the testing result latch cicuit, then it is described detection pulse generating module export a low level signal to it is described detection tie Fruit latch cicuit, makes a testing result latch signal of the testing result latch cicuit output low level so that the switch is electric Road is ended, and is ended wherein the cut-off of the on-off circuit makes described first to install between sense terminal and the second installation sense terminal, Even if also the LED straight lamps enter a not on-state.
And in certain embodiments, when two lamp holder of the LED straight lamps is correctly inserted into the lamp socket, the inspection The testing result signal of decision circuit input high levle is surveyed to the testing result latch cicuit, the testing result is locked A testing result latch signal of circuit output high levle is deposited so that the on-off circuit is turned on, wherein the on-off circuit is led It is logical to make described first conducting between sense terminal and the second installation sense terminal is installed, even if also the LED straight lamps operate in one Conducting state.
It is worth noting that, the pulsewidth for the pulse signal that detection pulse generating module is produced in 10us between 1ms, it is made With only when LED straight lamps are powered moment, making on-off circuit turn on of short duration time using this pulse signal.It can so produce A raw pulse current, flows through detection decision circuit and carries out detection judgement.Because generation be the short time pulse and for a long time lead It is logical non-, Danger Electric shock risk can't be triggered.Furthermore, testing result latch cicuit also maintains testing result when the operational phase, no longer Because circuit state changes and changes the testing result previously latched, and avoid the problem of testing result changes and caused.And install Detecting module (i.e. on-off circuit, detection pulse generating module, testing result latch cicuit and detection decision circuit) can collect It into chip, can so be embedded into circuit, the circuit cost and volume for installing detecting module can be saved.
Though applicant is in previous case, for example:In CN106015996A, it is proposed that using detecting pulse generating module The first pulse signal and the second pulse signal are produced so that detection decision circuit carries out detection judgement, applicant is when implementing to this The embodiment of scheme has carried out further improvement, it is intended to reduces the volume of detecting module and further improves what detection judged Precision.The following detailed improved embodiment of description.
Figure 15 G are referred to, are the circuit diagram of the installation detecting module according to the utility model embodiment.Installation is detectd Survey module and include a detecting pulse generating module 2740, a testing result latch cicuit 2760, an on-off circuit 2780 and one Detect decision circuit 2770.Wherein, detecting pulse generating module 2740 is electrically connected with testing result latch cicuit 2760, to produce A raw at least pulse signal.Testing result latch cicuit 2760 is electrically connected with on-off circuit 2780, to receive and export detecting The pulse signal that pulse generating module 2740 is exported.LED straight lamp electric power loops are electrically connected in on-off circuit 2780 One end and detection decision circuit 2770, to receive pulse signal that testing result latch cicuit 2760 exported and in this pulse Turned on during signal so that LED straight lamps electric power loop is turned on.On-off circuit is electrically connected in detection decision circuit 2770 2780th, the other end of LED straight lamps electric power loop and testing result latch cicuit 2760, to on-off circuit 2780 with When LED power loop is turned on, detect the sampled signal on electric power loop to judge the installment state of LED straight lamps and lamp socket.
In other words, the electric power loop of the present embodiment is used as installing the detection path of detecting module.Wherein, detection judges Testing result more is sent to testing result latch cicuit 2760 to carry out further control by circuit 2770；In addition, detecting pulse Occur the output that module 2740 is also electrically connected with testing result latch cicuit 2760, use the time of control disabling pulse signal. Priority is described in down by its thin portion circuit framework and the explanation of integrated circuit running.
In certain embodiments, detecting pulse generating module 2740 produces a pulse via testing result latch cicuit 2760 Signal (i.e. burst pulse), so that on-off circuit 2780 is operated in conducting state during pulse.Meanwhile, LED straight lamps are located at peace Electric power loop between dress sense terminal 2521 and 2522 can also be simultaneously turned on.Detection decision circuit 2770 is detected on electric power loop A sampled signal, and the signal detected based on sampled signal feeds back to testing result latch cicuit 2760.For example, Detection decision circuit 2770 can be for example the circuit of the output level that can produce to control latch circuit, wherein latch circuit Output level can be mutually corresponding with the conduction and cut-off state of LED straight lamps.Testing result latch cicuit 2760 is according to testing result Signal (or testing result signal and pulse signal) stores testing result, and transmits or provide on-off circuit by testing result 2780.On-off circuit 2780 is received after the testing result transmitted by testing result latch cicuit 2760, i.e., can be according to detection As a result come control install sense terminal 2521 and 2522 between conducting state.It is, when reaching the threshold value of setting, testing result The lock-in detection result of latch cicuit 2760, and by testing result transmit or provide on-off circuit 2780, install sense terminal 2521 with Turned between 2522.Before not turned between installing sense terminal 2521 and 2522, that detects pulse generating module interval sends arteries and veins Rush signal.
Figure 15 H are referred to, are the detecting pulse generating module schematic diagram according to the utility model embodiment.Detect pulse Generation module 2740 is included：One resistance 2742 (the 6th resistance), one end connects a driving voltage；(the 4th electricity of one electric capacity 2743 Hold), one end connects the other end of resistance 2742, and the other end ground connection of electric capacity 2743；One schmitt trigger 2744, with one Input and an output end, input connection resistance 2742 and the connection end of electric capacity 2743, the output end connecting detection result Latch cicuit 2760；One resistance 2745 (the 7th resistance), the connection end of one end connection resistance 2742 and electric capacity 2743；One transistor 2746 (second transistors), with a base terminal, a collector terminal and an emitter-base bandgap grading end, the collector terminal connects the another of resistance 2745 End, emitter-base bandgap grading end ground connection；And a resistance 2747 (the 8th resistance), one end connects the base terminal of transistor 2746, and resistance 2747 other end connecting detection result latch cicuit 2760 and on-off circuit 2780.Detecting pulse generating module 2740 is also included Zener diode 2748, with an anode tap and a cathode terminal, the other end ground connection of anode tap connection electric capacity 2743, the moon One end that extreme connection electric capacity 2743 is connected with resistance 2742.
Figure 15 I are referred to, are the testing result latch cicuit schematic diagram according to the utility model embodiment.Testing result Latch cicuit 2760 is included：One D flip-flop 2762 (the second D flip-flop), with a data input pin, a frequency input With an output end, the data input pin connects the driving voltage, the frequency input connecting detection decision circuit 2770；And one OR gate 2763 (the 3rd OR gate), with a first input end, one second input and an output end, first input end connection history The output end of schmitt trigger 2744, second input connects the output end of D flip-flop 2762, and the output of OR gate 2763 The other end and on-off circuit 2780 of end connection resistance 2747.
Figure 15 J are referred to, are the on-off circuit schematic diagram according to the utility model embodiment.On-off circuit 2780 is wrapped Include：One transistor 2782 (third transistor), with a base terminal, a collector terminal and an emitter-base bandgap grading end, base terminal connection OR gate 2763 output end, the one end in collector terminal connection LED power loop is (for example：First installs sense terminal 2521), the emitter-base bandgap grading end Connecting detection decision circuit 2770.Wherein, the also replaceable equivalent elements into other electronic switch of transistor 2782, for example： MOSFET etc..
Figure 15 K are referred to, are the detection decision circuit schematic diagram according to the utility model embodiment.Detect decision circuit 2770 include：One resistance 2774 (the 9th resistance), one end connects the emitter-base bandgap grading end of transistor 2782, and the other end of resistance 2774 connects Connect the other end in LED power loop (for example：Second installs sense terminal 2522)；One diode 2775 (the second diode), has One anode tap and a cathode terminal, the anode tap connect one end of resistance 2744；One comparator 2772 (the second comparator), with one First input end, one second input and an output end, the first input end connect a setting signal (for example：Reference voltage Vref, is 1.3V, right not limited to this in the present embodiment), second input connects the cathode terminal of diode 2775, and comparator 2772 output end connects the frequency input of D flip-flop 2762；One comparator 2773 (the 3rd comparator), with one first Input, one second input and an output end, the first input end connect the cathode terminal of diode 2775, second input Connect another setting signal (for example：Another reference voltage Vref, is 0.3V, right not limited to this in the present embodiment), and comparator Output end connect D flip-flop 2762 frequency input；One resistance 2776 (the tenth resistance), one end connects driving electricity Pressure；One resistance 2777 (the 11st resistance), the second input of the other end and comparator 2772 of one end connection resistance 2776, and The other end ground connection of resistance 2777；And an electric capacity 2778 (the 5th electric capacity), it is in parallel with resistance 2777.In certain embodiments, Above-mentioned diode 2775, comparator 2773, resistance 2776, resistance 2777 and electric capacity 2778 can be omitted, and work as diode 2775 when being omitted, and the second input of comparator 2772 is just directly connected to one end of resistance 2774.In certain embodiments, base Consider that resistance 2774 can be two resistor coupled in parallel, and its equivalent resistance is between 0.1 ohm~5 ohm in power factor (PF).
It is worth noting that, the partial circuit of above-mentioned installation detecting module, which can accumulate body, is melted into an integrated circuit, Jin Erjie Save the circuit cost and volume for installing detecting module.For example：Integrate the schmitt trigger of detecting pulse generating module 2740 2744th, testing result latch cicuit 2760 and detect decision circuit 2770 two comparators 2772,2773 in an integrated circuit, Right the utility model not limited to this.
Next the integrated circuit running for just installing detecting module is illustrated.First it is noted that this programme is utilized The principle that capacitance voltage will not undergo mutation；Electric capacity in LED straight lamp electric power loops is before electric power loop conducting, its two ends electricity Pressure is zero and short-circuit condition is presented in transient response；And when electric power loop is correctly installed on lamp socket in LED straight lamps, its transient state Response current-limiting resistance is smaller and peak value of response electric current is larger, when electric power loop is not correctly installed on lamp socket in LED straight lamps, its Transient response current-limiting resistance is larger and peak value of response electric current is smaller etc., and principle is carried out, and makes the leakage current of LED straight lamps Less than 5MIU.Below will be with regard to LED straight lamps in normal work (LED straight lamps two ends lamp holder is correctly installed in lamp socket) Electricity with changing during lamp test (i.e. LED straight lamps one end lamp holder is installed in lamp socket and other end lamp holder contacts a human body) embodiment Flow-rate ratio compared with：
Wherein, in denominator part, Rfuse is the fuse resistance (10 ohm) of LED straight lamps, and 500 ohm are simulation Resistance of the conductive characteristic of human body in transient response；And in molecular moiety, take rms voltage 90V~305V maximum voltage It is worth (305*1.414) and minimum voltage difference 50V.If from above example it is known that LED straight lamps two ends lamp holder just Really it is installed in lamp socket, minimum transient current during its normal work is 5A；But when LED straight lamps one end lamp holder is installed on lamp socket When interior and other end lamp holder contacts human body, its maximum transient current but only has 845mA.Therefore, the utility model utilization can pass through Transient response flows through electric capacity in LED power loop (for example：The filter capacitor of filter circuit) electric current to detect LED straight lamps With the installment state of lamp socket, that is, whether detection LED straight lamps are correctly installed in lamp socket, and in LED straight lamps not yet just Really when being installed in lamp socket, a protection mechanism is more provided got an electric shock with avoiding user because of false touch LED straight lamp current-carrying parts Problem.The above embodiments only and are not used to limit implementation of the present utility model to illustrate the utility model.
Then, referring again to Figure 15 G, when LED straight lamps change the outfit in lamp socket, detecting pulse generating module 2740 is one The section time (this time determines the pulse period), its output rises to one first high levle voltage from one first low level voltage, And this first high levle voltage is exported to testing result latch cicuit 2760 via a path 2741.Testing result latch cicuit 2760 are received after this first high levle voltage, and one second high levle voltage is exported simultaneously to on-off circuit via a path 2761 2780 with detecting pulse generating module 2740.After on-off circuit 2780 receives this second high levle voltage, on-off circuit 2780 Conducting causes an electric power loop of LED straight lamps (at least to install sense terminal 2521, on-off circuit 2780, path including first 2781st, detection decision circuit 2770 and second installs sense terminal 2522) conducting；And at the same time, detect pulse generating module 2740 a period of time after the second high levle voltage returned by testing result latch cicuit 2760 is received, (this time determined Determine pulse width), its export from the first high levle voltage drop back to the first low level voltage (the first low level voltage of first time, First high levle voltage constitutes one first pulse signal with secondary first low level voltage).And detect decision circuit 2770 In the electric power loop conducting of LED straight lamps, detect one first sampled signal on its loop (for example：Voltage signal), when this First sampled signal is more than and/or equal to a setting signal (for example：One reference voltage) when, it is former according to the application of above-mentioned this programme Reason, represents that LED straight lamps are correctly installed in lamp socket, therefore detection decision circuit 2770 exports one the 3rd via a path 2771 High levle voltage (the first high levle signal) is to testing result latch cicuit 2760.Testing result latch cicuit 2760 receive this Three high levle voltages and then export and maintain one second high levle voltage (the second high levle signal) to on-off circuit 2780, switch Circuit 2780 receives this second high levle voltage and then maintains to turn on so that the electric power loop of LED straight lamps maintains conducting, therebetween Detecting pulse generating module 2740 no longer produces pulse output.
When this first sampled signal is less than this setting signal, according to above-mentioned application principle of the present utility model, LED is represented Straight lamp is not yet correctly installed in lamp socket, therefore detection decision circuit 2770 exports one the 3rd low level voltage (the first low standard Position signal) to testing result latch cicuit 2760.Testing result latch cicuit 2760 receives this 3rd low level voltage and then defeated Go out and maintain the second low level voltage (the second low level signal) to on-off circuit 2780, it is second low that on-off circuit 2780 receives this Level voltage and then maintenance cut-off are so that the electric power loop of LED straight lamps maintains open circuit.In the case, it is to avoid user exists The problem of LED straight lamps are not yet correctly installed on lamp socket Nei Shiyin false touches LED straight lamps current-carrying part and got an electric shock.
After the electric power loop of above-mentioned LED straight lamps maintains open circuit a period of time (i.e. PRT), pulse is detected The output for occurring module 2740 rises to the first high levle voltage from the first low level voltage again, and is exported via path 2741 To testing result latch cicuit 2760.Testing result latch cicuit 2760 is received after this first high levle voltage, via path 2761 export one second high levle voltage to on-off circuit 2780 and detecting pulse generating module 2740 simultaneously.Work as on-off circuit 2780 receive after this second high levle voltage, and on-off circuit 2780 is turned on again causes the electric power loop of LED straight lamps (at least to wrap Include the first installation sense terminal 2521, on-off circuit 2780, path 2781, the detection installation sense terminal of decision circuit 2770 and second 2522) also turn on again；At the same time, detecting pulse generating module 2740 is returned in reception by testing result latch cicuit 2760 A period of time (this time determines pulse width) after the second high levle voltage passed, it is exported from the first high levle voltage drop Return one first low level voltage (the first low level voltage of third time, the of secondary first high levle voltage and the 4th time One low level voltage constitutes one second pulse signal).And detect decision circuit 2770 and led again in the electric power loop of LED straight lamps When logical, also detect one second sampled signal on its loop (for example again：Voltage signal), when this second sampled signal is more than And/or equal to setting signal (for example：One reference voltage) when, according to above-mentioned application principle of the present utility model, represent LED straight tubes Lamp is correctly installed in lamp socket, therefore detection decision circuit 2770 exports one the 3rd high levle voltage (first via path 2771 High levle signal) to testing result latch cicuit 2760.Testing result latch cicuit 2760 receives this 3rd high levle voltage and entered And export and maintain one second high levle voltage (the second high levle signal) to on-off circuit 2780, on-off circuit 2780 receives this Second high levle voltage and then maintenance conducting are so that the electric power loop maintenance conducting of LED straight lamps, detects pulse generation mould therebetween Block 2740 no longer produces pulse wave output.
When this second sampled signal is less than this setting signal, according to above-mentioned application principle of the present utility model, LED is represented Straight lamp is not installed in lamp socket correctly yet, therefore detection decision circuit 2770 exports one the 3rd low level voltage (the first low standard Position signal) to testing result latch cicuit 2760.Testing result latch cicuit 2760 receives this 3rd low level voltage and then defeated Go out and maintain one second low level voltage (the second low level signal) to on-off circuit 2780, on-off circuit 2780 receive this second Low level voltage and then maintenance cut-off are so that the electric power loop of LED straight lamps maintains open circuit.
Then, please referring also to Figure 15 H to Figure 15 K, when LED straight lamps change the outfit in lamp socket, a driving voltage is via electricity 2742 pairs of electric capacity 2743 of resistance charge, and when the voltage of electric capacity 2743 rises to and is enough to trigger schmitt trigger 2744, Schmitt trigger 2744 becomes one first high levle voltage output to OR gate 2763 from one first initial low level voltage One input.OR gate 2763 is after the first high levle voltage exported from schmitt trigger 2744 is received, OR gate 2763 One second high levle voltage is exported to the base terminal and resistance 2747 of transistor 2782.When the base terminal of transistor 2782 is received After the second high levle voltage exported from OR gate 2763, collector terminal and the emitter-base bandgap grading end of transistor 2782 are turned on, and then are caused The electric power loop of LED straight lamps (at least installs sense terminal 2521, transistor 2782, resistance 2774 and second to install including first Sense terminal 2522) conducting；And at the same time, the base terminal of transistor 2746 receives what OR gate 2763 was exported via resistance 2747 After second high levle voltage, the collector terminal of transistor 2746 is turned on emitter-base bandgap grading end to be grounded so that the voltage of electric capacity 2743 is via electricity Resistance 2745 is discharged over the ground, when the undertension of electric capacity 2743 is to trigger schmitt trigger 2744, schmitt trigger 2744 Output drop back to the first low level voltage (the first low level voltage of first time, the first high levle electricity from the first high levle voltage Pressure constitutes one first pulse signal with secondary first low level voltage).And when the electric power loop conducting of LED straight lamps, Electric capacity in LED power loop is flowed through (for example by transient response：The filter capacitor of filter circuit) electric current flow through transistor 2782 with resistance 2774, and form on resistance 2774 voltage signal, this voltage signal is via the reference of comparator 2772 and one Voltage (being 1.3V, right not limited to this in the present embodiment) is compared, when this voltage signal is more than and/or equal to this reference voltage When, comparator 2772 exports one the 3rd high levle voltage to the frequency input CLK of D flip-flop 2762, simultaneously because D types are touched The data input pin D connection driving voltages of device 2762 are sent out, therefore the output end Q of D flip-flop 2762 exports a high levle voltage To another input of OR gate 2763 so that OR gate 2763 exports and maintains the second high levle voltage to the base stage of transistor 2782 End, and then cause the electric power loop of transistor 2782 and LED straight lamps to maintain conducting.Because OR gate 2763 is exported and maintains Two high levle voltages, therefore transistor 2746 also maintains conducting to be grounded, and then cause the voltage of electric capacity 2743 can not rise to foot To trigger schmitt trigger 2744.
And when the voltage signal on resistance 2774 is less than reference voltage, comparator 2772 exports one the 3rd low level voltage To the frequency input CLK of D flip-flop 2762, simultaneously because the initial output value of D flip-flop 2762 is zero, therefore D types The output end Q of trigger 2762 exports a low level voltage to another input of OR gate 2763, and due to OR gate 2763 The schmitt trigger 2744 that one end is connected also recovers to export the first low level voltage, therefore OR gate 2763 exports and maintains the Two low level voltages to transistor 2782 base terminal, and then cause transistor 2782 maintain cut-off and LED straight lamps electricity Resource loop maintains open circuit.However, because OR gate 2763 is exported and maintains the second low level voltage, therefore transistor 2746 is also maintained In cut-off state, voltage to be driven is charged via resistance 2742 to electric capacity 2743 again to be detectd with repeating (pulse) next time Survey.
It is worth noting that, the pulse period is determined by the resistance value and the capacitance of electric capacity 2743 of resistance 2742, In some embodiments, the time interval of pulse signal is 3ms~500ms, further, and the time interval of pulse signal is 20ms ~50ms；Pulse width is determined by the resistance value and the capacitance of electric capacity 2743 of resistance 2745, in certain embodiments, arteries and veins Rushing the width of signal includes 1us~100us, further, and the width of pulse signal includes 10us~20us；Zener diode 2748 are provided protection against, but it can be omitted；Resistance 2774 is considered based on power factor (PF), can be two resistor coupled in parallel, its is equivalent Resistance value includes 0.1 ohm~5 ohm；Resistance 2776 and 2777, which provides partial pressure, ensures that input voltage is higher than the ginseng of comparator 2773 Examine voltage (being 0.3V, right not limited to this in the present embodiment)；Electric capacity 2778 provides voltage stabilizing and filter function；Diode 2775 ensures The one-way of signal transmission.In addition, at this point it is to be emphasized that, the installation detecting module disclosed by the utility model is applicable to it His both-end enters the LED illumination device of electricity, for example：LED with Double-End Source construction for electricity and comprising directly utilizing civil power Or the signal exported by the use of ballast is as LED of external drive voltage etc., the utility model is not intended to limit installation detecting The application of module.
Figure 15 L are referred to, Figure 15 L are the circuit diagram of the installation detecting module according to the utility model embodiment. A pulse generation auxiliary circuit 2840, an integrated control module 2860, an on-off circuit can be included by installing detecting module 2520 2880 and one detection judge auxiliary circuit 2870.Wherein, integrated control module 2860 at least include two input IN1, IN2 with And three pin positions such as output end OT.Pulse generation auxiliary circuit 2840 is electrically connected with the input IN1 of integrated control module 2860 With output end OT, to aid in integrated control module 2860 produce a control signal.Detection judges that auxiliary circuit 2870 electrically connects The input IN2 and on-off circuit 2880 of integrated control module 2860 are met, it can be used to return in on-off circuit 2880 and LED power When road is turned on, passback is associated with the sampled signal on electric power loop to the input IN2 of integrated control module 2860 so that integrated Control module 2860 can judge the installment state of LED straight lamps and lamp socket based on this sampled signal.On-off circuit 2880 is distinguished The one end and detection for being electrically connected with LED straight lamp electric power loops judge auxiliary circuit 2870, to receive integrated control module 2860 control signals exported, and the interior conducting during the enable of control signal so that LED straight lamps electric power loop is turned on.
In particular, integrated control module 2860 can be used to according to signal received on input IN1, at one section Export the control signal with an at least pulse briefly to turn on on-off circuit 2880 by output end OT in reconnaissance phase.Herein In section reconnaissance phase, whether integrated control module 2860 can correctly be pacified according to the signal detection LED straight lamps on input IN2 It is filled in lamp socket and latches testing result, is used as the foundation that on-off circuit 2880 whether is turned on after reconnaissance phase terminates (that is, deciding whether normal power supply to LED module).What the thin portion circuit framework and integrated circuit of the 3rd preferred embodiment were operated says It is bright to be described in down priority.
Figure 15 M are referred to, are to be illustrated according to the internal circuit blocks of the integrated control module of the utility model embodiment Figure.Integrated control module 2860 includes impulse generating unit 2862, testing result latch units 2863 and detection unit 2864. Impulse generating unit 2862 can receive the signal that pulse generation auxiliary circuit 2840 is provided from input IN1, and produce according to this A raw at least pulse signal, and the pulse signal produced can be provided to testing result latch units 2863.In the present embodiment, Impulse generating unit 2862 for example can be come with schmitt trigger (not illustrating, refer to Figure 15 H schmitt trigger 2744) Implement, its input couples the input IN1 of integrated control module 2860, and its output end couples integrated control module 2860 Output end OT.But impulse generating unit 2862 of the present utility model is not limited only to come real using the circuit framework of schmitt trigger Apply.It is any to realize that the analog/digital circuit framework for producing an at least pulse signal function all can be applied to this.
Testing result latch units 2863 couple impulse generating unit 2862 and detection unit 2864.In reconnaissance phase, Testing result latch units 2863 can be provided the pulse signal produced by impulse generating unit 2862 as control signal to defeated Go out to hold OT.On the other hand, the testing result signal lock that testing result latch units 2863 can also be provided detection unit 2864 Deposit, and provided after reconnaissance phase to output end OT, used according to whether the installment states of LED straight lamps correctly determines to be No conducting on-off circuit 2880.In the present embodiment, testing result latch units 2863 can be for example with D flip-flop collocation OR gate Circuit framework (not illustrating, refer to Figure 15 I D flip-flop 2762 and OR gate 2763) implement.Wherein, D flip-flop With a data input pin, a frequency input and an output end.The data input pin connects driving voltage VCC, and the frequency is defeated Enter to hold connecting detection unit 2864.OR gate has a first input end, one second input and an output end, the first input end Impulse generating unit 2862 is connected, second input connects the output end of D flip-flop, and the output end connection output of OR gate Hold OT.But testing result latch units 2863 of the present utility model are not limited only to the circuit framework using D flip-flop and OR gate To implement.It is any to realize the analog/digital for latching the simultaneously function that output control signal is switched with controlling switch circuit 2880 Circuit framework all can be applied to this.
The coupling testing result of detection unit 2864 latch units 2863.Detection unit 2864 can be received from input IN2 and examined The signal for judging that the lock of auxiliary circuit 2870 is provided is surveyed, and produces the detection whether indication LED straight lamp is properly installed according to this Consequential signal, and the testing result signal produced can be provided to testing result latch units 2863.In the present embodiment, detect Unit 2864 for example can be implemented with comparator (not illustrating, refer to Figure 15 K comparator 2772).Wherein, comparator has One first input end, one second input and an output end, the first input end connect a setting signal, and second input connects Connect input IN2, and the output end connecting detection result latch units 2863 of comparator 2772.But detection of the present utility model is single Member 2864 is not limited only to implement using the circuit framework of comparator.Any can realize is sentenced according to the signal on input IN2 The analog/digital circuit framework whether disconnected LED straight lamps are properly installed all can be applied to this.
Figure 15 N are referred to, Figure 15 N are to illustrate according to the circuit of the pulse generation auxiliary circuit of the utility model embodiment Figure.Pulse generation auxiliary circuit 2840 includes resistance 2842,2844 and 2846, electric capacity 2843 and transistor 2845.Resistance 2842 one end connects a driving voltage (such as VCC).The other end of one end resistance 2842 of electric capacity 2843, and electric capacity 2843 is another One end is grounded.The connection end of one end connection resistance 2842 and electric capacity 2843 of resistance 2844.Transistor 2845 have a base terminal, One collector terminal and an emitter-base bandgap grading end.The collector terminal connects the other end of resistance 2844, and the emitter-base bandgap grading end is grounded.The one of resistance 2846 The base terminal of end connection transistor 2845, and the other end of resistance 2846 is connected to integrated control module 2840 via path 2841 Output end OT and on-off circuit 2880 control end.Pulse generation auxiliary circuit 2840 also includes Zener diode 2847, It has an anode tap and a cathode terminal, the other end of anode tap connection electric capacity 2843 and ground connection, cathode terminal connection electricity Hold 2863 one end being connected with resistance 2842.
Figure 15 O are referred to, Figure 15 O are to judge that the circuit of auxiliary circuit is illustrated according to the detection of the utility model embodiment Figure.Detection judges that auxiliary circuit 2870 includes resistance 2872,2873 and 2875, electric capacity 2874 and diode 2876.Resistance One end of 2872 one end connecting valve circuit 2880, and the other end (example in the other end connection LED power loop of resistance 2872 Such as：Second installs sense terminal 2522).One end of resistance 2873 connects the driving voltage (such as VCC).One end connection of resistance 2874 The other end of resistance 2873, and it is connected to via path 2871 the input IN2 of integrated control module 2860, and resistance 2874 The other end is grounded.Electric capacity 2875 is in parallel with resistance 2874.Diode 2876 has an anode tap and a cathode terminal, and the anode tap connects One end of connecting resistance 2872, and the cathode terminal connects the connection end of resistance 2873 and 2874.In certain embodiments, above-mentioned resistance 2873rd, resistance 2874, electric capacity 2875 and diode 2876 can be omitted, when diode 2876 is omitted, resistance 2872 One end the input IN2 of integrated control module 2860 is directly connected to via path 2871.In certain embodiments, based on work( Rate factor considers that resistance 2872 can be two resistor coupled in parallel, and its equivalent resistance includes 0.1 ohm~5 ohm.
Figure 15 P are referred to, Figure 15 P are the circuit diagram of the on-off circuit according to the utility model embodiment.Switch Circuit 2880 includes transistor 2882, and it has a base terminal, a collector terminal and an emitter-base bandgap grading end.The base terminal warp of transistor 2882 The output end OT of integrated control module 2860, the collector terminal connection LED power loop of transistor 2882 are connected to by path 2861 One end (for example：First installs sense terminal 2521), and the emitter-base bandgap grading end connecting detection of transistor 2882 judges auxiliary circuit 2870.Wherein, the also replaceable equivalent elements into other electronic switch of transistor 2882, for example：MOSFET etc..
It is intended to first illustrate herein, the installation detecting principle that the installation detecting module of the present embodiment is utilized is and foregoing the Two preferred embodiments are identical, are all based on the electric capacity in the principle that capacitance voltage will not undergo mutation, LED straight lamp electric power loops Before electric power loop conducting, its both end voltage is zero and short-circuit condition is presented in transient response；And when electric power loop is in LED straight tubes When lamp is correctly installed on lamp socket, its transient response current-limiting resistance is smaller and peak value of response electric current is larger, when electric power loop is straight in LED When spot is not correctly installed on lamp socket, its transient response current-limiting resistance is larger and peak value of response electric current is smaller etc., and principle is subject to reality Apply, and the leakage current of LED straight lamps is less than 5MIU.In other words, exactly sentence through the mode of detecting peak value of response electric current Whether disconnected LED straight lamps are correctly installed in lamp socket.Therefore in normal work and the transient current portion changed under lamp test Divide the explanation that can refer to previous embodiment, it is no longer repeated in this.It is beneath to transport the integrated circuit for only just installing detecting module It is illustrated.
Referring again to Figure 15 L, when LED straight lamps change the outfit in lamp socket, LED straight lamps are in the case where there is one end to enter electricity Driving voltage VCC can be caused to be provided to the modules/circuits installed in detecting module 2520.The meeting of pulse generation auxiliary circuit 2840 React on driving voltage VCC and carry out charging action.Over time (this section time determine pulse period), its output voltage (claiming the first output voltage in this) from one first low level voltage be increased over one forward threshold voltage (magnitude of voltage can be according to electricity Design and define in road), and exported via a path 2841 to the input IN1 of integrated control module 2860.Integrated control module 2860 receive after the first output voltage from input IN1, and the control signal that an enable is exported via a path 2861 (is, for example, one High levle voltage) to on-off circuit 2880 and pulse generation auxiliary circuit 2840.When on-off circuit 2880 receives the control of this enable After signal processed, on-off circuit 2880, which is turned on, causes an electric power loop of LED straight lamps (at least to install sense terminal including first 2521st, on-off circuit 2880, path 2881, detection judge that auxiliary circuit 2870 and second installs sense terminal 2522) conducting；And This simultaneously, pulse generation auxiliary circuit 2840 can react on the control signal of enable and to turn on discharge path dynamic to carry out electric discharge Make, and a period of time after the control signal of the enable returned by integrated control module 2860 is received, (this time determined Determine pulse width), the first output voltage gradually drops back to the first low level voltage from the voltage quasi position more than forward threshold voltage.Its In, it is integrated when the first output voltage is decreased below reverse threshold voltage (magnitude of voltage can be defined according to circuit design) Control module 2860 can react on the first output voltage and the control signal of enable is pulled down into forbidden energy level and (that is, exports forbidden energy Control signal, the control signal of wherein forbidden energy is, for example, a low level voltage) so that control signal has impulse form Signal waveform (that is, by the low level voltage of the first time in control signal, high levle voltage and secondary low level voltage Constitute one first pulse signal).And detect and judge that auxiliary circuit 2870, in the electric power loop conducting of LED straight lamps, detects it One first sampled signal on loop is (for example：Voltage signal), and the first sampled signal is supplied to collection via input IN2 Into control module 2960.When integrated control module 2960 judges that this first sampled signal is more than or equal to a setting signal (for example： One reference voltage) when, according to above-mentioned application principle of the present utility model, represent that LED straight lamps are correctly installed in lamp socket, therefore Integrated control module 2860 can be exported and maintain the control signal of enable to on-off circuit 2880, and on-off circuit 2880 is received with greetings Can control signal so that maintain to turn on so that the electric power loop of LED straight lamps maintains conducting, therebetween integrated control module 2860 No longer produce pulse output.
On the contrary, when integral control circuit 2860 judges that this first sampled signal is less than this setting signal, according to above-mentioned Application principle of the present utility model, represents that LED straight lamps are not yet correctly installed in lamp socket, therefore integral control circuit can be exported And the control signal of forbidden energy is maintained to on-off circuit 2880, on-off circuit 2880 receives the control signal of this forbidden energy and then maintains to cut Only so that the electric power loop of LED straight lamps maintains open circuit.
Because the discharge path of pulse generation auxiliary circuit 2840 is cut off so that pulse generation auxiliary circuit 2840 is again Carry out charging action.Therefore, when the electric power loop of above-mentioned LED straight lamps is maintained after open circuit a period of time (i.e. during the pulse period Between), the first output voltage of pulse generation auxiliary circuit 2840 is increased over forward threshold value from the first low level voltage again Voltage, and exported via path 2841 to the input IN1 of integrated control module 2860.Integrated control module 2860 is from input IN1 is received after the first output voltage, control signal can be pulled into enable level from forbidden energy level again and (that is, be exported enable Control signal), and the control signal of enable is provided to on-off circuit 2880 and pulse generation auxiliary circuit 2840.Work as switch Circuit 2880 is received after the control signal of this enable, and on-off circuit 2880, which is turned on, causes the electric power loop of LED straight lamps (at least to wrap Include the first installation sense terminal 2521, on-off circuit 2880, path 2881, the detection judgement installation detecting of auxiliary circuit 2870 and second 2522) end also turns on again.At the same time, pulse generation auxiliary circuit 2840 can react on the control signal of enable again and lead Logical discharge path simultaneously carries out discharging action, and after the control signal of the enable returned by integrated control module 2860 is received A period of time (this section time determine pulse width), the first output voltage from the voltage quasi position more than forward threshold voltage again Gradually drop back to the first low level voltage.Wherein, when the first output voltage is decreased below reverse threshold voltage, integrated control mould Block 2860 can react on the first output voltage and the control signal of enable is pulled down into forbidden energy level, so that control signal has Have impulse form signal waveform (that is, by the low level voltage of the third time in control signal, secondary high levle voltage with The low level voltage of the 4th time constitutes one second pulse signal).And detect the power supply for judging auxiliary circuit 2870 in LED straight lamps When loop is turned on again, also detect one second sampled signal on its loop (for example again：Voltage signal), and second is taken Sample signal is supplied to integrated control module 2960 via input IN2.When this second sampled signal is more than and/or equal to setting letter Number (for example：One reference voltage) when, according to above-mentioned application principle of the present utility model, represent that LED straight lamps are correctly installed on lamp In seat, therefore integrated control module 2860 can export and maintain the control signal of enable to on-off circuit 2880, on-off circuit 2880 receive the control signal of this enable and then maintain to turn on the electric power loop maintenance conducting so that LED straight lamps, integrated therebetween Control module 2860 no longer produces pulse wave output.
It is new according to above-mentioned practicality when integral control circuit 2860 judges that this second sampled signal is less than this setting signal The application principle of type, represents that LED straight lamps are not installed in lamp socket correctly yet, therefore integral control circuit can export and maintain to prohibit Can control signal to on-off circuit 2880, on-off circuit 2880 receive the control signal of this forbidden energy so that maintain to end so that The electric power loop of LED straight lamps maintains open circuit.In the case, it is to avoid user is not yet correctly installed on lamp in LED straight lamps Seat Nei Shiyin false touches LED straight lamps current-carrying part and the problem of get an electric shock.
Internal circuit/module running of the beneath installation detecting module for being more particularly described the present embodiment.Please referring also to scheme 15M to Figure 15 P, when LED straight lamps change the outfit in lamp socket, a driving voltage VCC fills via resistance 2742 to electric capacity 2743 Electricity, and when the voltage of electric capacity 2843 rise to be enough trigger pulse generation unit 2862 when (that is, more than forward threshold voltage), arteries and veins One first high levle voltage output can be become to detection from one first initial low level voltage by rushing the output of generation unit 2862 As a result latch units 2863.Testing result latch units 2863 receive from impulse generating unit 2862 exported it is first high After level voltage, testing result latch units 2863 can export one second high levle voltage to transistor 2882 via output end OT Base terminal and resistance 2846.When the base terminal of transistor 2882 receives what is exported from testing result latch units 2863 After second high levle voltage, collector terminal and the emitter-base bandgap grading end of transistor 2882 are turned on, and then cause the electric power loop of LED straight lamps (at least install sense terminal 2521, transistor 2882, resistance 2872 and second including first and install sense terminal 2522) conducting.
And at the same time, the base terminal of transistor 2845 receives the second high levle electricity on output end OT via resistance 2846 After pressure, the collector terminal of transistor 2845 is turned on emitter-base bandgap grading end to be grounded so that the voltage of electric capacity 2843 is put over the ground via resistance 2844 Electricity, when the undertension of electric capacity 2843 is with trigger pulse generation unit 2862, the output of impulse generating unit 2862 is from first High levle voltage drop back to the first low level voltage (the first low level voltage of first time, the first high levle voltage with it is secondary First low level voltage constitutes one first pulse signal).And when the electric power loop conducting of LED straight lamps, pass through transient response Flow through electric capacity in LED power loop (for example：The filter capacitor of filter circuit) electric current flow through transistor 2882 and resistance 2872, and a voltage signal is formed on resistance 2872, this voltage signal is provided to input IN2 so that detection unit 2864 can be compared this voltage signal with a reference voltage.
When detection unit 2864 judges that this voltage signal is more than or equal to this reference voltage, the output of detection unit 2,864 one 3rd high levle voltage is to testing result latch units 2863.And when detection unit 2864 judges the voltage signal on resistance 2872 During less than reference voltage, detection unit 2864 exports one the 3rd low level voltage to testing result latch units 2863.
Wherein, testing result latch units 2863 can latch the 3rd high levle voltage/that detection unit 2864 is provided Three low level voltages, then the signal that the signal of latch and impulse generating unit 2862 are provided are carried out or logical operation, and According to or logical operation result determine output control signal be the second high levle voltage or the second low level voltage.
More specifically, when the voltage signal that detection unit 2864 is judged on resistance 2872 is more than or equal to reference voltage When, testing result latch units 2863 can latch the 3rd high levle voltage that detection unit 2864 is exported, and use maintenance output Second high levle voltage and then causes the electric power loop of transistor 2882 and LED straight lamps to the base terminal of transistor 2882 Maintain conducting.Because testing result latch units 2863 can be exported and maintain the second high levle voltage, therefore transistor 2845 is also Conducting ground connection is maintained, and then causes the voltage of electric capacity 2843 can not rise to be enough trigger pulse generation unit 2862.Work as detection When unit 2864 judges that the voltage signal on resistance 2872 is less than reference voltage, detection unit 2864 and impulse generating unit 2862 What is provided is all low level voltage, thus by or logical operation after, testing result latch units 2863 can be exported and maintained The second low level voltage and then causes transistor 2882 to maintain cut-off and LED straight lamps to the base terminal of transistor 2882 Electric power loop maintains open circuit.However, because the control signal on output end OT is now maintained at the second low level voltage, therefore Transistor 2845 also maintains cut-off state, and voltage VCC to be driven is charged with weight via resistance 2842 to electric capacity 2843 again It is multiple to carry out (pulse) next time detecting.
One, which is attached, in this is mentioned that can be defined as driving voltage VCC in the reconnaissance phase described in the present embodiment is carried Installation detection module 2520 is supplied to, but detection unit 2864 not yet judges that the voltage signal on resistance 2872 is more than or equal to reference During voltage.In in reconnaissance phase, by the control signal that testing result latch units 2863 are exported can repeatedly make crystalline substance Body pipe 2845 is turned on and cut-off so that discharge path is periodically switched on and cut-off.Electric capacity 2843 can react on transistor 2845 conduction and cut-off, and periodically charge and discharge.Therefore, testing result latch units 2863 can be in reconnaissance phase Control signal of the output with recurrent pulses waveform.And when detection unit 2864 judges that the voltage signal on resistance 2872 is more than Or when equal to reference voltage, or driving voltage VCC being stopped offer, can be considered reconnaissance phase terminate (have determined that correct installation, Or LED lamp tube is pulled out).Now testing result latch units 2863, which can be exported, maintains the second high levle voltage or second The control signal of low level voltage.
On the other hand, from the point of view of comparison chart 15G, for the second preferred embodiment, the integrated control mould of the present embodiment Block 2860 can be by detecting pulse generating module 2740, testing result latch cicuit 2760 and detection decision circuit 2770 Partial circuit component is integrated to be constituted, and the circuit unit for not being integrated then respectively constitute the present embodiment pulse generation it is auxiliary Circuit 2840 is helped to judge auxiliary circuit 2870 with detection.In other words, the impulse generating unit 2862 in integrated control module 2860 Function/circuit framework of collocation pulse generation auxiliary circuit 2840 can be equal to the detecting pulse generation mould of the second preferred embodiment Function/circuit framework of testing result latch units 2863 in block 2740, integrated control module 2860 can be equal to second compared with The testing result latch module 2760 of good embodiment, and in integrated control module 2860 detection unit 2864 collocation detection sentence Detection decision circuit 2770 can be equal to by determining function/circuit framework of auxiliary circuit 2870.
Figure 15 Q are referred to, Figure 15 Q are the internal circuit blocks of the trigistor according to the utility model embodiment Schematic diagram.The installation detecting module of the present embodiment may be, for example, to include power end VP1, the first switch terminal SP1 and second to cut Change an end SP2 trigistor 2920.Wherein, the power end VP1 of trigistor 2920 is suitable to receive driving voltage VCC, the first switch terminal SP1 are adapted to the first installation sense terminal 2521 and second and install one of sense terminal 2522 (in figure Formula is depicted as connection first and installs sense terminal 2521, but is not limited only to this), and the second switch terminal SP2 is adapted to first Sense terminal 2521 is installed and the second installation sense terminal 2522 is wherein another (is depicted as being connected second in schema and installs sense terminal 2522, but it is not limited only to this).
Trigistor 2920 includes signal processing unit 2930, signal generation unit 2940, signal gathering unit 2950 and switch element 2960.In addition, trigistor 2920 can also include internal electric source detecting unit 2970.At signal The signal that reason unit 2930 can be provided according to signal generation unit 2940 and signal gathering unit 2950, and it is defeated in reconnaissance phase Go out the control signal with impulse waveform, and output maintains the control of high voltage level or low voltage level after reconnaissance phase Signal processed, with the conducting state of controlling switch unit 2960, uses the electric power loop for deciding whether to turn on LED straight lamps.Signal Generation unit 2940 can produce pulse signal to signal processing unit 2930 when receiving driving voltage VCC.Wherein, signal Produced by pulse signal produced by generation unit 2940 can be a reference signal of the basis from external reception, or by it Body is independently produced, and the utility model is any limitation as not to this.＂ is relative to signal generation unit 2940 outside the ＂ described in this For, as long as that is, right and wrong as the reference signal produced by signal generation unit 2940, either in trigistor 2920 Produced by other circuits, or as produced by the external circuit of trigistor 2920, come under described herein from outside The reference signal of reception.Signal gathering unit 2950 can be used to sample the electric signal on the electric power loop of LED straight lamps, and root The installment state of LED straight lamps is detected according to the signal being sampled to, then the testing result signal for indicating testing result is transmitted to letter Number processing unit 2930 is handled.
In an exemplary embodiment, the trigistor 2920 can be realized using integrated circuit, that is, described three End switch device can be the switch control chip at three ends, and it can be applicable to the LED straight tubes that any kind of both-end enters electricity In lamp, the function that electrocution-proof protection is provided is used.It should further be appreciated that the trigistor 2920 can not be limited and only wrapped Containing three pin position/connection ends, but wherein there are three pin positions to be arranged as described above in multiple pin position, come under this reality Apply the scope to be protected of example.
In an exemplary embodiment, signal processing unit 2930, signal generation unit 2940, signal gathering unit 2950, Switch element 2960 and internal electric source detecting unit 2970 can be realized (but not with Figure 15 R to Figure 15 V circuit framework respectively It is only limitted to this).Beneath point illustrates with regard to each unit.
Figure 15 R are referred to, Figure 15 R are the circuit diagram of the signal processing unit according to the utility model embodiment. Signal processing unit 2930 includes driver 2932, OR gate 2933 and D flip-flop 2934.Driver 2932 has input With output end, the output end of driver 2932 is through the connecting valve unit 2960 of path 2931, to use and provide control signal To switch element 2960.OR gate 2933 has first input end, the second input and output end.First input of OR gate 2933 End connects signal generation unit 2940, and the input of the output end coupling drivers 2932 of OR gate 2933 through path 2941.D D-flip flop 2934 has data input pin (D), frequency input (CK) and output end (Q).The data of D flip-flop 2934 are defeated Enter end and receive driving voltage VCC, the frequency input of D flip-flop 2934 is connected to signal gathering unit through path 2951 2950, and the second input of the output end coupling OR gate 2933 of D flip-flop.
Figure 15 S are referred to, Figure 15 S are the circuit diagram of the signal generation unit according to the utility model embodiment. Signal generation unit 2940 includes resistance 2942 and 2943, electric capacity 2944, switch 2945 and comparator 2946.Resistance 2942 One end receives driving voltage VCC, and resistance 2942, resistance 2943 and electric capacity 2944 are serially connected with driving voltage VCC and ground connection Between end.Switch 2945 is in parallel with electric capacity 2944.Comparator 2946 has first input end, the second input and output end. The connection end of the first input end coupling resistance 2942 and 2943 of comparator 2946, the second input of comparator 2946 receives one Reference voltage Vref, and the control end of the output end coupling switch 2945 of comparator 2946.
15T is referred to, Figure 15 T are the circuit diagram of the signal gathering unit according to the utility model embodiment.Letter Number collecting unit 2950 includes OR gate 2952 and comparator 2953 and 2954.OR gate 2952 has first input end, second defeated Enter end and output end, the output end of OR gate 2952 is connected to signal processing unit 2930 via path 2951.Comparator 2953 First input end be connected to one end of switch element 2960 (that is, on the electric power loop of LED straight lamps) via path 2962, than The second input compared with device 2953 receives one first reference voltage (such as 1.25V, but be not restricted to this), and comparator 2953 Output end couples the first input end of OR gate 2952.The first input end of comparator 2954 receives one second reference voltage (such as 0.15V, but it is not restricted to this), the second input of comparator 2954 couples the first input end of comparator 2953, and compares The output end of device 2954 couples the second input of OR gate 2952.
15U is referred to, Figure 15 U are the circuit diagram of the switch element according to the utility model embodiment.Switch is single Member 2960 includes transistor 2963, and it has gate terminal, drain end and source terminal.The gate terminal of transistor 2963 is via path 2931 are connected to signal processing unit 2930, and the drain end of transistor 2963 is connected to the first switch terminal SP1 via path 2961, And the source terminal of transistor 2973 is connected to the first input end of the second switch terminal SP2, comparator 2953 via path 2962 And the second input of comparator 2954.
15V is referred to, Figure 15 V are to illustrate according to the circuit of the internal electric source detecting unit of the utility model embodiment Figure.Internal electric source detecting unit 2970 includes clamp circuit 2972, generating circuit from reference voltage 2973, voltage-regulating circuit 2974 And schmitt trigger 2975.Clamp circuit 2972 is respectively coupled to power end VP1 with voltage-regulating circuit 2974, to receive drive Dynamic voltage VCC, uses and carries out the action that voltage clamp is adjusted with voltage to driving voltage VCC respectively.Generating circuit from reference voltage 2973 coupling voltage-regulating circuits, to produce a reference voltage to voltage-regulating circuit 2974.Schmitt trigger 2975 has There are input and output end, its input coupling clamp circuit 2972 and voltage-regulating circuit 2974, and the output drive of its output end Dynamic voltage to indicate driving voltage VCC whether a power supply confirmation signal of regular supply.Wherein, if driving voltage VCC is in The state of regular supply, schmitt trigger 2975 can export enable (such as high levle) power supply confirmation signal so that driving Voltage VCC is provided to each components/circuits in trigistor 2920.If on the contrary, driving voltage VCC is in exception State, schmitt trigger 2975 can export forbidden energy (such as low level) power supply confirmation signal, use and avoid three-terminal switch device Each component/circuit because in part 2920 is operated under abnormal driving voltage VCC and damaged.
Referring to Figure 15 Q to Figure 15 V, in the running of the present embodiment physical circuit, when LED straight lamps change the outfit in lamp socket When, driving voltage VCC can be provided to trigistor 2920 via power end VP1.Now, driving voltage VCC can be via Resistance 2942 charges with 2943 pairs of electric capacity 2944.And when capacitance voltage is increased over reference voltage Vref, comparator 2946 The control end of the first input end and switch 2945 that export high levle voltage to OR gate 2933 can be switched to.Wherein, 2945 are switched This high levle voltage can be reacted on and turned on so that electric capacity 2944 starts to discharge over the ground.Through the process of this discharge and recharge, comparator 2946 can export the output signal with impulse form.
On the other hand, during the output high levle voltage of comparator 2946, OR gate 2952 can corresponding output high levle Voltage turns on transistor 2962 so that electric current circulates on the electric power loop of LED straight lamps.Wherein, when having electric current in power supply When loop is circulated, the voltage signal of corresponding current size can be set up on path 2972.Comparator 2953 can sample this voltage letter Number and be compared with the first reference voltage (such as 1.25V).
When the voltage signal being sampled to is more than the first reference voltage (such as 1.25V), comparator 2953 can export high levle Voltage.OR gate 2952 can react on the high levle voltage that comparator 2953 exported and produce another high levle voltage to D types and touch Send out the frequency input of device 2934.D flip-flop 2934 understands the output based on OR gate 2952 and maintains to export high levle voltage.Drive High levle voltage that dynamic device 2932 can be reacted on input and the control signal of enable is produced to turn on transistor 2963.This When, even if electric capacity 2944 has been discharged to capacitance voltage less than reference voltage Vref, and it is pulled down to the output of comparator 2946 Low level voltage, because D flip-flop 2934 can maintain to export high levle voltage, therefore transistor 2963 can be maintained at conducting State.
When the voltage signal being sampled to is less than the first reference voltage (such as 1.25V), comparator 2953 can export low level Voltage.OR gate 2952 can react on the low level voltage that comparator 2953 exported and produce another low level voltage to D types and touch Send out the frequency input of device 2934.D flip-flop 2934 understands the output based on OR gate 2952 and maintains to export low level voltage.This When, once electric capacity 2944 is discharged to capacitance voltage less than reference voltage Vref, and the output of comparator 2946 is pulled down to low standard Position voltage (that is, at the end of during pulse), because two inputs of OR gate 2952 are all maintained at low level voltage so that output End also exports low level voltage, therefore driver 2932 can react on the control signal that the low level voltage received produces forbidden energy Carry out "off" transistor 2963 so that the electric power loop of LED straight lamps is turned off.
As shown in the above description, the running of the signal processing unit 2930 of the present embodiment is similar to foregoing second and preferably implemented The testing result latch cicuit 2760 of example, the running of signal generation unit 2940 is similar to the detecting of foregoing second preferred embodiment Pulse generating module 2740, the running of signal gathering unit 2950 is similar to the detection decision circuit of foregoing second preferred embodiment 2770, and switch element 2960 running similar to foregoing second preferred embodiment on-off circuit 2780.
Figure 15 W are referred to, are the circuit diagram of the installation detecting module according to the utility model embodiment.Installation is detectd Survey module comprising on-off circuit 3080, detection pulse generating module 3040, control circuit 3060, detection decision circuit 3070 and Detect path circuit 3090.Decision circuit 3070 is detected through the coupling of path 3081 detection path circuit 3090, to detect detection road Signal on footpath circuit 3090.Detect that through the coupling connection control circuit 3060 of path 3071, detection is tied simultaneously for decision circuit 3070 Fruit signal is sent to control circuit 3060 through path 3071.Detect the passage path 3041 of pulse generating module 3040 coupling detection road Footpath circuit 3090, and produce pulse signal to notify the opportunity point in detection path circuit 3090 conduction detection path.Control circuit 3060, according to testing result signal latch testing result, couple on-off circuit 3080 through path 3061, testing result are transmitted Or it is reflected into on-off circuit 3080.On-off circuit 3080 is according to testing result, and decision makes the first installation sense terminal 2521 and the Two install on or off between sense terminal 2522.
In the present embodiment, the configuration of detection pulse generating module 3040 may be referred to Figure 15 C detection pulse generation mould The detection pulse generating module 2740 of block 2640 or Figure 15 H.Figure 15 C are refer to, in application detection pulse generating module 2640 When framework is as detection pulse generating module 3040, the path 3041 of the present embodiment can be compared as path 2541, that is, OR gate 2652, which can pass through path 3041, is connected to detection path circuit 3090.Figure 15 H are refer to, pulse generating module is detected in application When 2740 framework is as detection pulse generating module 3040, the path 3041 of the present embodiment can be compared as path 2741.In addition, Detection pulse generating module 3040 can also passage path 3061 be connected to the output end of control circuit 3060, therefore the present embodiment Path 3061 can be compared as path 2761.
Control circuit 3060 can be implemented using control chip or any circuit with signal operation disposal ability.When When control circuit 3060 judges user not in contact with fluorescent tube according to testing result signal, control circuit 3060 can controlling switch circuit 3080 switching state, to make external power source to be normally provided to rear end when fluorescent tube is properly attached on lamp socket LED module.Now, control circuit 3060 can end detection path.On the contrary, when control circuit 3060 is according to testing result signal When judging that user contacts fluorescent tube, because user has the risk of electric shock, therefore control circuit 3060 can be by on-off circuit 3080 Maintain the state of cut-off.
In an exemplary embodiment, control circuit 3060 and the drive circuit that on-off circuit 3080 can be in power module A part.For example, if drive circuit be switching dc to direct current transducer, on-off circuit 3080 can be direct current To the power switch of direct current transducer, and circuit 3060 is controlled to be that the controller for corresponding to the power switch (is, for example, PWM controller).
The detection of detection decision circuit 2670 or Figure 15 K that the configuration of detection decision circuit 3070 may be referred to Figure 15 D is sentenced Determine circuit 2770.Figure 15 D are refer to, when the framework of application detection decision circuit 2670 is as detection decision circuit 3070, electricity Resistance 2672 can be omitted.The path 3081 of the present embodiment can be compared as path 2581, that is, the positive input terminal of comparator 2671 Detection path circuit 3090 can be connected to.The path 3071 of the present embodiment can be compared as path 2571, that is, comparator 2671 Output end can be connected to control circuit 3060.Figure 15 K are refer to, detection is used as in the framework of application detection decision circuit 2770 During decision circuit 3070, resistance 2774 can be omitted.The path 3081 of the present embodiment can be compared as path 2781, that is, two poles The anode of pipe 2775 can be connected to detection path circuit 3090.The path 3071 of the present embodiment can be compared as path 2771, also That is the output end of comparator 2772 and 2773 can be connected to control circuit 3060.
The configuration of on-off circuit 3080 may be referred to Figure 15 F on-off circuit 2680 or Figure 15 J on-off circuit 2780.By It is similar in the framework of two on-off circuits, explanation is represented with Figure 15 F on-off circuit 2680.Figure 15 F are refer to, in application switch electricity When the framework on road 2680 is as on-off circuit 3080, the path 3061 of the present embodiment can be compared as path 2561, and path 2581 will not be connected to detection decision circuit 2570, and be connected directly to the second installation sense terminal 2522.
The configuration of path circuit 3090 is detected as shown in Figure 15 X, Figure 15 X are the detection according to the utility model embodiment The circuit diagram of path circuit.Detect that path circuit 3090 includes transistor 3092 and resistance 3093 and 3094.Transistor 3092 have base stage, collector and emitter-base bandgap grading, and emitter-base bandgap grading is via the connecting detection pulse generating module 3040 of path 3041.Resistance 3092 is concatenated Between the emitter-base bandgap grading and earth terminal of transistor 3092, resistance 3093 is serially connected in the collector of transistor 3092 and first and installs sense terminal Between 2521.
In the present embodiment, when transistor 3092 receives the pulse signal that detection pulse generating module 3040 is provided When, it interior during pulse can be turned on.In the case that at least one end is attached to lamp socket in fluorescent tube, sense terminal 2521 is installed from first A detection path (by resistance 3094, transistor 3092 and resistance 3093) to earth terminal can react on the transistor of conducting 3092 and turn on therewith, and detection path nodes X on set up a voltage signal.When user is not in contact with fluorescent tube, The level of the voltage signal be according to resistance 3093 with 3094 partial pressure and determine.When user contacts fluorescent tube, human body Equivalent resistance can be equivalent to be serially connected between nodes X and earth terminal, that is, in parallel with resistance 3092.The now voltage signal Level is determined according to the equivalent resistance of resistance 3093,3094 and human body.Thereby, there is suitable resistance value through setting Resistance 3093 and 3094, you can allow the voltage signal in nodes X to reflect the state whether user touches fluorescent tube so that Detect that decision circuit can produce corresponding testing result signal according to the voltage signal in nodes X.
In summary, the present embodiment can pass through conduction detection path and detect the voltage signal on detection path to judge Whether user has electric shock risk.In addition, for compared to previous embodiment, the detection path of the present embodiment is extra foundation, and Non- is to be used as detection path by the use of electric power loop.Because the electronic building brick detected on path additionally set up is less than on electric power loop Electronic building brick, therefore voltage signal on the detection path additionally set up more can accurately reflect the touching of user State.
Furthermore, similar to described in previous embodiment, the circuits/modules described in the present embodiment all or part of can also collect Configuration as chip, as shown in earlier figures 15L to Figure 15 V, therefore is repeated no more in this.
In addition, from the point of view of comprehensive second to the 4th preferred embodiment, those skilled in the art should can consider in light of actual conditions herein and recognize Installation detecting module disclosed in the preferred embodiment of this case second not only can serve as distributed circuit design in LED straight lamps In, can also be by partial circuit component integration into an integrated circuit (such as the 3rd preferred embodiment), or by whole circuit groups Part is integrated into an integrated circuit (such as the 4th preferred embodiment), uses and saves the circuit cost and volume of installing detecting module. In addition, installing detecting module through modularization/integrated setting, it may be such that installation detecting module can be easier to collocation in difference In the LED straight lamps design of type, and then improve design compatibility.On the other hand, integrated installation detecting module is straight in LED Under the application of spot, because the circuit area inside fluorescent tube is reduced significantly therefore may be such that the lighting area of LED straight lamps is bright Lifted aobviously, and then improve the photocurrent versus light intensity performance of LED straight lamps.Furthermore, because integrated design can make what is be integrated The operating current of component reduces (reduction about 50%), and improves circuit operating efficiency, therefore the power saved can be used to It is supplied to LED module is luminous to use so that the luminous efficiency of LED straight lamps can be lifted further.
The installation detecting module teaching of Figure 15 B, 15G, 15L and 15Q embodiments, which installs detecting module, to be included for example detecting arteries and veins Module 2540 and 2740, pulses generation auxiliary circuit 2840 and signal generation unit 2940 etc. occur for punching to produce pulse letter Number pulses generation mechanism, but the utility model is not limited only to this.In an exemplary embodiment, installing detecting module can utilize The existing frequency signal of power module replaces the function of the pulses generation mechanism of previous embodiment.For example, drive circuit (such as DC-DC converter) itself just has a reference frequency for PWM to be produced (PWM) signal.And The function of the pulses generation mechanism can be implemented using the reference frequency with reference to pwm signal so that detecting pulse generation mould The hardware circuits such as block 2540 and 2740, pulses generation auxiliary circuit 2840 and signal generation unit 2940 can be omitted.Change Yan Zhi, circuit framework can be shared with the other parts in power module by installing detecting module, so as to realize generation pulse signal Function.
One is attached in addition to be mentioned that, in the description of this case, although for the name of the functional property of each modules/circuits, but Those skilled in the art is it should be appreciated that according to different circuit designs, same circuit unit, which can be considered, different functions, also I.e. different modules/circuits can may share same circuit unit to realize its other circuit function.Therefore the work(of this case Energy life name is not limited to specific circuit unit and is only capable of including in specific modules/circuits, first chats bright in this conjunction.
In summary, above-mentioned Figure 15 A have taught anti-tactile to realize with the mode of detecting using Electronic Control to 15X embodiments Electric protection.For technology compared to the action using mechanical structure to carry out protection against electric shock, due to the control and detecting of electronic type The problem of method will not be with the presence of mechanical fatigue, also helps modularization, the design of miniaturization.Therefore carried out using electronic signal The electrocution-proof protection of fluorescent tube can have preferably reliability and service life.
In such scheme, it is single-ended enter the pin that refers to from one end lamp holder of LED straight lamps of electricity be electrically connected to external drive Signal, both-end enters the electric pin referred to from the two ends lamp holder of LED straight lamps and is electrically connected to external drive signal.
In power supply module design, in some embodiments, it is contemplated that the power of power supply module and the size of lamp holder, by certain One power power-supply module is fabricated to power supply module (it is cumulative and is predetermined power) 2 small, is separately positioned on LED straight lamps two In the lamp holder of side.
In power supply module design, described external drive signal can be low-frequency ac signal (for example：Civil power is carried For), high frequency ac signal (for example：Electric ballast is provided) or direct current signal is (by accessory power supply mould such as：Battery is provided.
Described external drive signal be low-frequency ac signal (for example：Civil power is provided) or direct current signal is (for example：Battery There is provided) LED straight lamps can be applied to both-end enter electricity (wiring) mode, can also support wherein one end using as it is single-ended enter electricity (wiring) mode of (power supply) is that at this moment LED straight lamps support single-ended or both-end to enter electricity, while LED straight lamps apply also for answering The occasion of anxious illumination, at this moment LED straight lamps need to connect auxiliary power module.
In the auxiliary power module design of power supply module, energy-storage units can be battery or super capacitor, with LED module It is in parallel.Auxiliary power module is suitable for inclusion in the design of the LED illumination module of drive circuit.
When LED straight lamps enter (wiring) mode of electricity applied to both-end, installation detecting module is configured with LED straight lamps, To reduce the risk of leakage current.
In addition, " above " that above-described embodiment is referred to refers to the light direction of light source, namely the face on lamp plate where light source is Above, and back to light source lamp plate for " below "." above " and " following " are merely to clearly illustrate this with reference to accompanying drawing Utility model, is not to limitation of the present utility model, such as pad to be provided with above described lamp plate, is not to say that lamp plate can only Pad is provided with above, it is understood that the wherein at least one side of lamp plate is provided with pad.It is " soft board " described in the utility model and " hard Plate " is also that comparatively, i.e. hardboard is not necessarily referring to the hard plate of material with respect to being hardboard for soft board.
When direct current signal is as external drive signal, the power supply module of LED straight lamps can omit rectification circuit.
In the rectification circuit design of power supply module, the first rectification unit and the second rectification unit point in double rectification circuits Not with configuring the pin coupling in the two ends lamp holder of LED straight lamps.Double rectification units are applied to the driving framework of Double-End Source.And And when being configured with an at least rectification unit, go for the driving of low-frequency ac signal, high frequency ac signal or direct current signal Environment.
Double rectification units can be double half-wave rectification circuit, double-full-bridge rectifier circuit or half-wave rectifying circuit and full-bridge rectification The combination of circuit each one.
Can be each single pin (totally two pins) of both-end, each pair of pin of both-end in the pin design of LED straight lamps The framework of (totally four pins).Under the framework of each single pin of both-end, the rectification circuit design of single rectification circuit is applicable to. Under the framework of each pair of pin of both-end, the rectification circuit design of double rectification circuits is applicable to, and uses each any pin of both-end Or any single-ended double pins receive external drive signal.
In the filter circuit design of power supply module, can have Single Capacitance or π type filter circuits, to filter out after rectification Radio-frequency component in signal, and the direct current signal for providing low ripple is filtered signal.Filter circuit can also include LC filtering Circuit, so that high impedance is presented to specific frequency.Furthermore, filter circuit can also include the filter being coupled between pin and rectification circuit Ripple unit, to reduce the electromagnetic interference caused by the circuit of LED.When direct current signal is as external drive signal, LED straight tubes The power supply module of lamp can omit filter circuit.
In the LED illumination module design of power supply module, comprising LED module or LED module and driving only can be included Circuit.To ensure that the voltage in LED illumination module is unlikely overvoltage can also be occurred for mu balanced circuit and LED illumination wired in parallel. Mu balanced circuit can be voltage clamping circuit, for example：Zener diode, bi-directional voltage stabilizing pipe etc..When rectification circuit includes condenser network, An electric capacity can be connected two-by-two between in a pin at each end of both-end and a pin of the other end, to be carried out with condenser network Partial pressure acts on and is used as mu balanced circuit.
In the design of LED module is only included, when high frequency ac signal is as external drive signal, an at least rectified current Road includes condenser network (that is, comprising more than one electric capacity), connects, makes with the full-bridge or half-wave rectifying circuit in rectification circuit Condenser network is equivalent to impedance as current regulating circuit and to adjust the electric current of LED module under high frequency ac signal.Thereby, When different electric ballasts provides the high frequency ac signal of different voltages, the electric current of LED module can be adjusted in default The unlikely situation for occurring excessively stream in current range.Furthermore it is possible to energy circuit is released in extra increase, and it is in parallel with LED module, in outside Drive signal stops after providing, auxiliary by filter circuit release can, with caused by reducing filter circuit or other circuits Resonance causes the situation of LED module flashing.In comprising LED module and drive circuit, drive circuit can be that direct current turns DC boosting change-over circuit, DC-DC decompression converting circuit or DC-DC lifting voltage conversion circuit.Drive circuit system To the electric current of LED module is stable in setting electric current value, it can also be heightened according to the high or low of external drive signal come correspondence Or turn down setting electric current value.Furthermore it is possible to which additionally increase mode selector switch makes electric current between LED module and drive circuit LED module is directly inputted by filter circuit or LED module is inputted after overdrive circuit.
Furthermore it is possible to additionally increase protection circuit to protect LED module.Protection circuit can detect the electric current of LED module And/or voltage starts corresponding excessively stream or overvoltage protection to correspond to.
In the LED module design of power supply module, LED module can be (that is, single comprising the multi-string LED component being connected in parallel to each other One LED chip, or multiple LED modules with different colors chips composition LED groups) string, the LED component in each LED component string can be each other Connect and form netted connection.
That is, features described above can be made to arbitrary permutation and combination, and for the improvement of LED straight lamps, to continue Improve applicant previously proposed CN 105465640, CN 205424492, CN 106015996, CN 105472836 it is single or There is provided safer for its deficiency combined, it is easier to manufacture and/or characteristic more preferably LED straight lamps.

Claims (11)

1. a kind of LED straight lamps, comprising being provided with the lamp plate of LED/light source and being provided with the power supply circuit board of power supply, its feature exists In,
Light source pad is provided with the lamp plate；
It is provided with the power supply circuit board on power pad, the power pad and is provided with hole；
The light source pad is with the power pad by being welded to connect；
The power pad of the power supply circuit board is located at the top of the light source pad of the lamp plate, by welding the power circuit Plate and the lamp plate electrical communication.
2. LED straight lamps according to claim 1, it is characterised in that the lamp plate is by sandwich circuit layer and one layer of dielectric Layer is constituted, and the Surface coating of the line layer has one layer to have the ink material of welding resistance and the function of increase reflection as protection Layer, the protective layer is provided with opening, the LED/light source is electrically connected with the line layer.
3. LED straight lamps according to claim 2, it is characterised in that the dielectric layer also has one layer of cladding to have welding resistance Protective layer is used as with the ink material of the function of increase reflection.
4. LED straight lamps according to claim 3, it is characterised in that do not have opening on the protective layer of cladding dielectric layer.
5. LED straight lamps according to claim 1, it is characterised in that the thickness for the tin that the power pad is set is 0.3 ~0.5mm.
6. LED straight lamps according to claim 1, it is characterised in that the pad being provided with the lamp plate is set There is reach through hole, the break-through bore dia is between 1~2mm.
7. LED straight lamps according to claim 1, it is characterised in that each electricity of power supply circuit board described in side The described hole that source pad is set is multiple.
8. LED straight lamps according to claim 7, it is characterised in that described hole is 2,3,5,7 or 9 It is individual.
9. LED straight lamps according to claim 1, it is characterised in that after the lamp plate is connected with the power supply circuit board, It is in zigzag in LED straight lamps.
10. LED straight lamps according to claim 1, it is characterised in that the first relative face of the power supply circuit board with Second face is respectively formed with the power pad corresponded to each other, and the power supply circuit board is located above the lamp plate.
11. LED straight lamps according to claim 1, it is characterised in that
The light source pad is that the lamp plate between 2, the light source pad has breach；
The first relative face of the power supply circuit board is respectively formed with the power pad corresponded to each other with the second face, every simultaneously to have Power supply circuit board between 2 pads, 2 pads has breach；
The power supply circuit board is located above the lamp plate, and two breach overlap so as to formed lamp plate described in insertion and The through hole of the power supply circuit board.
CN201621344288.5U 2016-01-22 2016-12-07 A kind of LED straight lamps Active CN206386705U (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
CN201720871663.XU CN208107667U (en) 2016-01-22 2016-12-07 A kind of LED straight lamp, ballast bypass type LED straight lamp and straight tube lamp system
CN201720300371.0U CN207122778U (en) 2016-01-22 2016-12-07 Auxiliary power module and LED straight tubes lamp system and LED straight lamp groups
CN201720491686.8U CN207124784U (en) 2016-01-22 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720873163.XU CN207460540U (en) 2016-03-09 2016-12-07 A kind of installation detecting module and the circuit of power module and LED straight lamps
CN201621470749.3U CN206908890U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720873817.9U CN207369353U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720031416.9U CN207011031U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720188642.8U CN206904652U (en) 2016-01-26 2016-12-07 LED straight lamps
CN201720032880.XU CN206908891U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720344510.XU CN207005797U (en) 2016-01-22 2016-12-07 LED straight tube lamp systems

Applications Claiming Priority (38)

Application Number Priority Date Filing Date Title
CN2016100441484 2016-01-22
CN201610044148 2016-01-22
CN201610051691 2016-01-26
CN2016100509449 2016-01-26
CN2016100516917 2016-01-26
CN201610050944 2016-01-26
CN201610085895 2016-02-15
CN2016100858952 2016-02-15
CN2016100876274 2016-02-16
CN201610087627 2016-02-16
CN201610098424 2016-02-23
CN2016100984245 2016-02-23
CN201610132513 2016-03-09
CN2016101325137 2016-03-09
CN201610142140 2016-03-14
CN2016101421401 2016-03-14
CN201610177706 2016-03-25
CN2016101777064 2016-03-25
CN2016103278060 2016-05-18
CN201610327806 2016-05-18
CN2016104524378 2016-06-20
CN201610452437 2016-06-20
CN201610878349 2016-10-08
CN2016108783494 2016-10-08
CN2016108765937 2016-10-08
CN201610876593 2016-10-08
CN201610890527 2016-10-12
CN2016108905275 2016-10-12
CN201610955338 2016-10-27
CN201610955342 2016-10-27
CN2016109553381 2016-10-27
CN2016109553428 2016-10-27
CN201610975119 2016-11-03
CN201610975119X 2016-11-03
CN201611057357 2016-11-25
CN2016110573579 2016-11-25
CN2016111087239 2016-12-06
CN201611108723 2016-12-06

Related Child Applications (10)

Application Number Title Priority Date Filing Date
CN201720871663.XU Division CN208107667U (en) 2016-01-22 2016-12-07 A kind of LED straight lamp, ballast bypass type LED straight lamp and straight tube lamp system
CN201720873163.XU Division CN207460540U (en) 2016-03-09 2016-12-07 A kind of installation detecting module and the circuit of power module and LED straight lamps
CN201720300371.0U Division CN207122778U (en) 2016-01-22 2016-12-07 Auxiliary power module and LED straight tubes lamp system and LED straight lamp groups
CN201720031416.9U Division CN207011031U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720188642.8U Division CN206904652U (en) 2016-01-26 2016-12-07 LED straight lamps
CN201720873817.9U Division CN207369353U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720491686.8U Division CN207124784U (en) 2016-01-22 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720344510.XU Division CN207005797U (en) 2016-01-22 2016-12-07 LED straight tube lamp systems
CN201621470749.3U Division CN206908890U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module
CN201720032880.XU Division CN206908891U (en) 2016-03-09 2016-12-07 A kind of circuit and LED straight lamps for installing detecting module

Publications (1)

Publication Number Publication Date
CN206386705U true CN206386705U (en) 2017-08-08

Family

ID=59430907

Family Applications (8)

Application Number Title Priority Date Filing Date
CN202210965643.4A Pending CN115218136A (en) 2016-01-22 2016-12-07 Power module device and LED lamp of installation detection device and use
CN201621344288.5U Active CN206386705U (en) 2016-01-22 2016-12-07 A kind of LED straight lamps
CN201611116966.7A Pending CN106996514A (en) 2014-09-28 2016-12-07 A kind of LED straight lamps
CN202110068758.9A Active CN112628620B (en) 2016-01-22 2016-12-07 Installation detection device, power module device and LED lamp applying same
CN202110065675.4A Active CN112648545B (en) 2016-01-22 2016-12-07 LED straight tube lamp and power module device applied to LED lamp
CN202110069997.6A Active CN112664846B (en) 2016-01-22 2016-12-07 Installation detection device, power module device and LED lamp using same
CN201720871663.XU Active CN208107667U (en) 2016-01-22 2016-12-07 A kind of LED straight lamp, ballast bypass type LED straight lamp and straight tube lamp system
CN202110496272.5A Active CN113251325B (en) 2016-01-22 2016-12-07 LED straight tube lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN202210965643.4A Pending CN115218136A (en) 2016-01-22 2016-12-07 Power module device and LED lamp of installation detection device and use

Family Applications After (6)

Application Number Title Priority Date Filing Date
CN201611116966.7A Pending CN106996514A (en) 2014-09-28 2016-12-07 A kind of LED straight lamps
CN202110068758.9A Active CN112628620B (en) 2016-01-22 2016-12-07 Installation detection device, power module device and LED lamp applying same
CN202110065675.4A Active CN112648545B (en) 2016-01-22 2016-12-07 LED straight tube lamp and power module device applied to LED lamp
CN202110069997.6A Active CN112664846B (en) 2016-01-22 2016-12-07 Installation detection device, power module device and LED lamp using same
CN201720871663.XU Active CN208107667U (en) 2016-01-22 2016-12-07 A kind of LED straight lamp, ballast bypass type LED straight lamp and straight tube lamp system
CN202110496272.5A Active CN113251325B (en) 2016-01-22 2016-12-07 LED straight tube lamp

Country Status (1)

Country Link
CN (8) CN115218136A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11519567B2 (en) 2014-09-28 2022-12-06 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11649934B2 (en) 2014-09-28 2023-05-16 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11686457B2 (en) 2014-09-28 2023-06-27 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11906115B2 (en) 2014-12-05 2024-02-20 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9497821B2 (en) 2005-08-08 2016-11-15 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10612731B2 (en) 2014-09-28 2020-04-07 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US9689536B2 (en) 2015-03-10 2017-06-27 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10502372B2 (en) 2015-03-10 2019-12-10 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US10317017B2 (en) 2015-03-10 2019-06-11 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US9897265B2 (en) 2015-03-10 2018-02-20 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp having LED light strip
US11754232B2 (en) 2015-03-10 2023-09-12 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED lamp and power source module thereof related applications
US11028973B2 (en) 2015-03-10 2021-06-08 Jiaxing Super Lighting Electric Appliance Co., Ltd. Led tube lamp
US10070498B2 (en) 2015-04-14 2018-09-04 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp with improved compatibility with electrical ballasts
US11035526B2 (en) 2015-12-09 2021-06-15 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
US10337676B2 (en) 2015-12-09 2019-07-02 Jiaxing Super Lighting Electric Appliance Co., Ltd. LED tube lamp
WO2019033237A1 (en) * 2017-08-14 2019-02-21 深圳市豪恩光电照明股份有限公司 Electric leakage protection circuit, electric leakage protection apparatus and led apparatus
WO2019062782A1 (en) * 2017-09-27 2019-04-04 嘉兴山蒲照明电器有限公司 Light-emitting diode straight tube lamp and light-emitting diode illumination system
CN108006444A (en) * 2017-12-19 2018-05-08 上海镭芯微电子有限公司 A kind of single-ended power LED intelligent illumination lamps and lanterns and method of work
CN108488659A (en) * 2018-03-07 2018-09-04 江门市亿君鑫达光电科技有限公司 A kind of waterproof LED lamp strip with safety device
WO2020088521A1 (en) * 2018-10-30 2020-05-07 嘉兴山蒲照明电器有限公司 Led straight lamp and power supply module thereof
CN111341199B (en) * 2019-08-23 2021-04-06 Tcl科技集团股份有限公司 Light source assembly, method for reducing working current of backlight module and display device
CN110822303B (en) * 2019-10-31 2022-08-30 厦门普为光电科技有限公司 LED lamp tube compatible with electronic ballast and mains supply
CN114941810A (en) * 2022-04-29 2022-08-26 厦门普为光电科技有限公司 Light-emitting diode lamp tube with flexible plate connecting structure and manufacturing method thereof

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06141552A (en) * 1992-10-26 1994-05-20 Kasuga Denki Kk Power controller for high frequency high voltage power supply
JP3729961B2 (en) * 1997-01-14 2005-12-21 株式会社小糸製作所 Discharge lamp lighting circuit
US5869937A (en) * 1997-12-17 1999-02-09 Motorola Inc. High efficiency electronic ballast
CN100534252C (en) * 2006-08-22 2009-08-26 东南大学 Controller of LED illuminating lamp of solar energy
CN101599711B (en) * 2008-06-04 2012-03-21 国琏电子（上海）有限公司 Current converter circuit
CN101646290B (en) * 2008-08-06 2012-10-31 夏普株式会社 Led drive circuit
JP4864994B2 (en) * 2009-03-06 2012-02-01 シャープ株式会社 LED drive circuit, LED illumination lamp, LED illumination device, and LED illumination system
CN101998713A (en) * 2009-08-03 2011-03-30 东芝照明技术株式会社 Power supply device, LED lighting lamp and lighting apparatus
CN102032458A (en) * 2009-09-27 2011-04-27 晶锜科技股份有限公司 Light-emitting device and light-emitting method thereof
CN201541369U (en) * 2009-11-06 2010-08-04 林文献 Driver of 5-100 LEDs serially connected
US8294379B2 (en) * 2009-11-10 2012-10-23 Green Mark Technology Inc. Dimmable LED lamp and dimmable LED lighting apparatus
US8553439B2 (en) * 2010-02-09 2013-10-08 Power Integrations, Inc. Method and apparatus for determining zero-crossing of an AC input voltage to a power supply
JP5031865B2 (en) * 2010-03-23 2012-09-26 シャープ株式会社 LED drive circuit, LED illumination lamp, LED illumination device, and LED illumination system
CN101848580B (en) * 2010-05-17 2013-07-17 海洋王照明科技股份有限公司 Led lamp control circuit and led lamp
CN102570198B (en) * 2011-11-28 2014-05-14 湖南奥盟电器有限公司 Human body induction energy-saving electric shock preventing socket
CN102711329B (en) * 2012-05-31 2014-07-09 宁波福泰电器有限公司 Self-adaptive LED (light emitting diode) fluorescent lamp
JP6013810B2 (en) * 2012-07-05 2016-10-25 ローム株式会社 LED driver circuit and lighting device
CN104093258B (en) * 2013-06-24 2016-06-01 国网山东省电力公司高密市供电公司 Fluorescent lamp failure testing auto-power-off device
CN104467372B (en) * 2014-12-18 2017-02-22 矽力杰半导体技术(杭州)有限公司 Switch power controller and control method thereof
CN104681249B (en) * 2015-03-09 2017-10-31 南京航空航天大学 Modified non-contact transformer with secondary current phase-detection function
CN204836696U (en) * 2015-08-05 2015-12-02 肖志军 Constant -current drive circuit that LED lamp can be adjusted luminance

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11519567B2 (en) 2014-09-28 2022-12-06 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11649934B2 (en) 2014-09-28 2023-05-16 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11686457B2 (en) 2014-09-28 2023-06-27 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp
US11906115B2 (en) 2014-12-05 2024-02-20 Jiaxing Super Lighting Electric Appliance Co., Ltd LED tube lamp

Also Published As

Publication number Publication date
CN106996514A (en) 2017-08-01
CN112648545A (en) 2021-04-13
CN208107667U (en) 2018-11-16
CN115218136A (en) 2022-10-21
CN112628620B (en) 2023-08-01
CN112648545B (en) 2023-08-01
CN112664846A (en) 2021-04-16
CN113251325B (en) 2023-06-02
CN115218137A (en) 2022-10-21
CN112664846B (en) 2023-03-28
CN113251325A (en) 2021-08-13
CN112628620A (en) 2021-04-09

Similar Documents

Publication Publication Date Title
CN206386705U (en) A kind of LED straight lamps
CN207124784U (en) A kind of circuit and LED straight lamps for installing detecting module
CN206555763U (en) A kind of LED straight lamps
CN209688551U (en) LED lamp tube
US10571081B2 (en) LED tube lamp and driving method therefor
CN206908890U (en) A kind of circuit and LED straight lamps for installing detecting module
CN208572480U (en) A kind of power module and LED straight lamp
CN206559673U (en) LED straight lamps
CN212163776U (en) Detection module, power module and LED straight lamp
CN206055270U (en) LED straight lamps
CN205491290U (en) LED straight -tube lamp
CN206018331U (en) Led daylight lamp
CN209856808U (en) LED straight lamp
CN218570514U (en) LED lamp and misuse warning module
CN207005797U (en) LED straight tube lamp systems
CN209517556U (en) The auxiliary power module of LED straight lamp and its auxiliary power module, electrical equipment
CN207990255U (en) A kind of LED straight lamps
CN210112321U (en) LED straight lamp lighting system
CN206559674U (en) LED straight lamps
CN205579231U (en) LED (Light -emitting diode) straight lamp
CN206413213U (en) LED straight lamps
CN205491287U (en) LED straight -tube lamp
CN115218137B (en) Installation detection device, power module device applied by installation detection device and LED lamp
CN211481558U (en) LED straight lamp, power module, filter circuit of power module and installation detection module
US20230090839A1 (en) LED Tube lamp and a power supply module thereof

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant