CN100501909C - Electromagnetic induction lamp and lamp tube - Google Patents

Electromagnetic induction lamp and lamp tube Download PDF

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Publication number
CN100501909C
CN100501909C CNB2005100276173A CN200510027617A CN100501909C CN 100501909 C CN100501909 C CN 100501909C CN B2005100276173 A CNB2005100276173 A CN B2005100276173A CN 200510027617 A CN200510027617 A CN 200510027617A CN 100501909 C CN100501909 C CN 100501909C
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CN
China
Prior art keywords
fluorescent tube
electromagnetic induction
amalgam
magnet ring
induction lamp
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CNB2005100276173A
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CN1892977A (en
Inventor
李维德
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Jiangsu Lide Lighting Industry Co., Ltd.
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Shanghai Hongyuan Lighting & Electric Equipment Co Ltd
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Priority to CNB2005100276173A priority Critical patent/CN100501909C/en
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Publication of CN100501909C publication Critical patent/CN100501909C/en
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Abstract

The electromagnetic induction lamp includes following parts and structures: lamp holder installed on lamp base, case connected to the lamp holder, control circuit placed inside the case; luminous tube connected to the control circuit, fluorescent dye layer coated to inner wall of luminous tube, gas and amalgam contained inside cavity of the luminous tube; encircling a section of luminous tube, anchor ear of magnetic ring is sheathed on luminous tube; magnetic loop inside the anchor ear, winding wrapped on magnetic ring, winding connected to the control circuit. Gases inside luminous tube are gas mixture of argon and krypton. Gas pressure is 0.3 torr, and pressure of amalgam is 5 micro torr. There are one or two pieces of magnetic cores inside magnetic ring. Number of winding is larger than or equal to 14. Features are: high luminous quantity, compact structure of outline, and working frequency from 150 to 300KHz.

Description

Electromagnetic induction lamp and fluorescent tube thereof
Technical field
The present invention relates to electromagnetic induction lamp, relate in particular to a kind of electromagnetic induction lamp and fluorescent tube thereof of fluorescent tube parameter.
Background technology
Electromagnetic induction lamp can be widely used in family, factory building, office space, road, engineering construction building site etc. because it belongs to the new-generation energy-saving product of no filament, high light efficiency, Gao Guangtong, long-life, high power factor.
In 1991, the electrodeless lamp of Everlight has been invented by MAT, GE produced the Genura lamp in 1994, PHILIPS Co. was developed into the electrodeless lamp of QL in 1997, and their principle all is to utilize electromagnetic induction to convert electric energy to magnetic energy, converted luminous energy to by magnetic energy again and luminous, therefore they all belong to electromagnetic induction lamp, their profile and structure are also roughly the same, and as shown in Figure 1, this lamp 100 comprises:
Lamp holder 102 can be connected in lamp socket.Shell 104 links to each other with lamp holder 102, in a cavity is arranged.Electromagnetic inductive lamp circuit is placed in the cavity of shell 104.Fluorescent tube 106, spherical in shape, be fixed on the shell 104, there is the krypton gas and the amalgam 108 of the discharge kept inside.In the glass chamber 110 that installs coil, be fixed on the shell 104, stretch into the inside of fluorescent tube 106, an end has a steam vent 112.The conducting glass material 114 that is connected with the RF grounded part connects fluorescent tube 106 and RF grounded part.Fluorescent coating 116 covers the inboard of fluorescent tube 106, the outside in glass chamber 110 and the part that fluorescent tube 106 links to each other with conducting glass material 114.Titanium dioxide reflectance coating 118 covers the outside in glass chamber 110 and the part that fluorescent tube 106 links to each other with conducting glass material 114.Conductive coating 120 covers the outside of fluorescent tube 106.The coil that this kind lamp is placed in the glass chamber 110 when work will produce magnetic field, and the gas ionization discharge in the field drives fluorescent tube produces light, although this type of light fixture has been equipped with the advantage of electrodeless lamp, also realized miniaturization, can directly replace incandescent lamp, but its cost is higher, and complex process is made difficulty.And only be confined to small-power electrodeless lamp.
The coil that is placed in the glass chamber 110 during lamp work will produce magnetic field, and the gas ionization discharge in the field drives fluorescent tube produces light, although this type of light fixture has been equipped with the advantage of electrodeless lamp, also realized miniaturization, can directly replace incandescent lamp, but its cost is higher, and complex process is made difficulty.And only be confined to small-power electrodeless lamp.
Summary of the invention
The purpose of this invention is to provide a kind of novel electromagnetic induction lamp, it has improved the parameter of fluorescent tube and the structure of fluorescent tube.
According to an aspect of the present invention, provide a kind of electromagnetic induction lamp fluorescent tube, be applicable to electromagnetic induction lamp, wherein be filled with gas and amalgam, the gas in the described fluorescent tube is argon krypton gaseous mixture, and air pressure is 0.3 holder, and the air pressure of amalgam is 5 microtorrs.
According to embodiments of the invention, the blast pipe of described fluorescent tube is built-in, is placed on the inside of fluorescent tube, is placed with amalgam and indium net in the described blast pipe, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams; Perhaps, the blast pipe of described fluorescent tube is an external, is placed on the outside of fluorescent tube, is placed with amalgam and indium net inside the Pass the described exhaust, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams.
According to embodiments of the invention, described fluorescent tube also has one or more ports that are placed with the indium net.
According to embodiments of the invention, the weight of described amalgam is defined as according to watt level:
15W—40mg、23W—60mg、40W—90mg、80W—135mg、120W—180mg、150W—225mg、200W—270mg。
According to embodiments of the invention, described fluorescent tube is closed three-dimensional contouring.
According to embodiments of the invention, described fluorescent tube is an annular, and described magnet ring support and magnet ring are enclosed within on the described fluorescent tube, surround a cross section of described fluorescent tube; Perhaps, described fluorescent tube is double-U-shaped, has two bridge joints between two U type fluorescent tubes and links to each other, and described magnet ring support and magnet ring are enclosed within on the described bridge joint, surround a cross section of described bridge joint.
According to embodiments of the invention, the positive column zone of described fluorescent tube bottom has the sectional area of expansion.
According to embodiments of the invention, described fluorescent tube is " U " type, and a bridge joint is arranged in the opening of " U " type, and described magnet ring anchor ear and magnet ring are enclosed within on the described bridge joint, and the expansion of the bottom of described fluorescent tube is mushroom-shaped; Perhaps, described fluorescent tube is " ∏ " type, and bottom expansion is mushroom-shaped.
According to embodiments of the invention, the inwall of described fluorescent tube scribbles the protective layer of aluminium oxide, also scribbles rare-earth trichromatic fluorescent powder on protective layer.
According to a further aspect in the invention, provide a kind of electromagnetic induction lamp, comprise lamp holder, lamp holder can be installed on the lamp socket; The control circuit shell is connected in described lamp holder, and described lamp sleeve is placed with control circuit in the described control circuit shell on described control circuit shell; Fluorescent tube is connected in described control circuit shell, and the inwall of described fluorescent tube scribbles phosphor powder layer, and the chamber of fluorescent tube contains gas and amalgam; The magnet ring anchor ear is enclosed within on the described fluorescent tube, surrounds a certain cross section of described fluorescent tube; Magnet ring is positioned in the described magnet ring anchor ear, and described magnet ring also surrounds the described cross section of described fluorescent tube; Coil on described magnet ring, links to each other with described control circuit, provides magnetic field to light electromagnetic induction lamp; Wherein, the gas in the described fluorescent tube is argon krypton gaseous mixture, and air pressure is 0.3 holder, and the air pressure of amalgam is 5 microtorrs; The quantity of described magnet ring inner magnetic core is 1-2; The quantity of described coil is 〉=14.
According to one embodiment of the invention,, determine that the parameters of described electromagnetic induction lamp is according to the size of power:
Magnetic core quantity: 15W-1,23W-1,40W-1,40W/80W/120W150W/200W-2;
The quantity of coil: 15W-14 circle, 23W-15 circle, 40W-15 circle, 80W-18 circle, 120W-18 circle, 150W-18 circle, 200W-18 circle.
The iron oxide weight of using in the magnet ring: 15W-40g, 23W-74g, 40W-135g, 80W-180g, 120W-180g, 150W-180g, 200W-235g;
Discharging current: 15W-2.2A, 23W-3A, 40W-4.2A, 80W-5A, 120W-6A, 150W-6.5A, 200W-9A.
According to embodiments of the invention, the blast pipe of described fluorescent tube is built-in, is placed on the inside of fluorescent tube, is placed with amalgam and indium net in the described blast pipe, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams; Perhaps, the blast pipe of described fluorescent tube is an external, is placed on the outside of fluorescent tube, is placed with amalgam and indium net inside the Pass the described exhaust, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams.
According to embodiments of the invention, described fluorescent tube also has one or more ports that are placed with the indium net.
According to embodiments of the invention, the weight of described amalgam is defined as according to watt level:
15W—40mg、23W—60mg、40W—90mg、80W—135mg、120W—180mg、150W—225mg、200W—270mg。
According to embodiments of the invention, described fluorescent tube is closed three-dimensional contouring.
According to embodiments of the invention, described fluorescent tube is an annular, and described magnet ring support and magnet ring are enclosed within on the described fluorescent tube, surround a cross section of described fluorescent tube; Perhaps, described fluorescent tube is double-U-shaped, has two bridge joints between two U type fluorescent tubes and links to each other, and described magnet ring support and magnet ring are enclosed within on the described bridge joint, surround a cross section of described bridge joint.
According to embodiments of the invention, the positive column zone of described fluorescent tube bottom has the sectional area of expansion.
According to embodiments of the invention, described fluorescent tube is " U " type, and a bridge joint is arranged in the opening of " U " type, and described magnet ring anchor ear and magnet ring are enclosed within on the described bridge joint, and the expansion of the bottom of described fluorescent tube is mushroom-shaped; Perhaps, described fluorescent tube is " ∏ " type, and bottom expansion is mushroom-shaped.
According to embodiments of the invention, the inwall of described fluorescent tube scribbles the protective layer of aluminium oxide, also scribbles rare-earth trichromatic fluorescent powder on protective layer.
According to embodiments of the invention, described control circuit comprises: anti-emi filter links to each other with AC power; The bridge rectifier module links to each other with anti-emi filter; Active power factor corrector links to each other with the bridge rectifier module; The closed loop light adjusting controller links to each other with active power factor corrector; Semi-bridge inversion oscillating circuit module links to each other with the closed loop light adjusting controller; Central processing unit links to each other with semi-bridge inversion oscillation power module; Power take off links to each other with central processing unit with semi-bridge inversion oscillation power module; Electromagnetic inductor links to each other with the start-up control device with power take off; The dim signal compensator links to each other with central processing unit with the closed loop light adjusting controller; The start-up control device links to each other with AC power; Protective circuit links to each other with central processing unit with power take off, detects output signal and feeds back to central processing unit.
According to embodiments of the invention, described central processing unit is a HY4501 chip.
Adopted technical scheme of the present invention, electromagnetic induction lamp of the present invention make fluorescent tube have higher luminous quantity and compact appearance structure, and its electromagnetic inductive lamp circuit can make operating frequency at 150~300KHz by improving the parameter and the structure of fluorescent tube.
Description of drawings
The above and other features of the present invention, character and advantage will be by becoming obviously to further describing of embodiment below in conjunction with accompanying drawing, and identical in the accompanying drawings Reference numeral is represented identical feature all the time, wherein:
Fig. 1 is the structure chart of existing electromagnetic induction modulated structure and fluorescent tube;
Fig. 2 A and 2B are the structure charts according to the electromagnetic induction lamp of embodiments of the invention;
Fig. 3 A and 3B are the lamp tube structure figure according to the electromagnetic induction lamp of embodiments of the invention;
Fig. 4 A and 4B are the structure charts with the electromagnetic induction lamp that expands machining area according to embodiments of the invention.
Fig. 5 is the control circuit structured flowchart of an embodiment of compact electromagnetic induction lamp of the present invention;
Fig. 6 is the control circuit figure of an embodiment of compact electromagnetic induction lamp of the present invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with accompanying drawing.
Fig. 2 A and 2B are the structure charts according to one embodiment of the present of invention, and 2A and 2B are respectively the views of two different directions.As shown in Figure 2, the electromagnetic induction lamp 200 of this embodiment comprises following structure:
Lamp holder 202, lamp holder 202 can be installed on the lamp socket.The structure of this lamp holder 202 is the same with lamp holder in the conventional art, and the structure of lamp socket also is identical.Control circuit shell 204 is connected in lamp holder 202, and lamp holder 202 is enclosed within on the control circuit shell 204, is placed with control circuit 206 in the control circuit shell 204.Fluorescent tube 208, inwall scribbles phosphor powder layer, and the chamber of fluorescent tube contains gas and amalgam.Magnet ring anchor ear 210 is enclosed within on the fluorescent tube 208, surrounds a certain cross section of fluorescent tube 208.Magnet ring 212 is arranged in magnet ring anchor ear 210, and magnet ring 212 also surrounds the above-mentioned cross section of fluorescent tube 208.With reference to embodiment shown in Figure 2, " U " type that is shaped as of fluorescent tube has a bridge joint in the opening of " U " type herein.Magnet ring anchor ear 210 is located in this bridge joint place, surrounds a cross section on the bridge joint.Be wound with coil 214 on the magnet ring 212, coil 214 is connected to control circuit 206, provides magnetic field to light electromagnetic induction lamp 200.An improvement of the present invention promptly is the quantity of magnet ring anchor ear 210, according to technical scheme of the present invention, it adopts a magnet ring anchor ear 210, and as shown in Figure 2, when adopting this " U " type fluorescent tube that has a bridge joint, the position of this magnet ring anchor ear 210 is to be arranged in the middle empty crotch of fluorescent tube, does not need to take up room extraly, therefore can reduce the overall volume of fluorescent tube.Also include clamping plate 216 in this enforcement profit, like this, fluorescent tube 208 and magnet ring anchor ear 210 just are not directly connected on the control circuit shell 204, but are connected on the clamping plate 216, and clamping plate 216 are connected in control circuit shell 204.Some has drawn being connected of fluorescent tube 208 and magnet ring anchor ear 210 and clamping plate 216 in the mode of analysing and observe among Fig. 2 B, is to use screw to connect among this embodiment.
Fig. 3 A and 3B are the structure charts of the fluorescent tube of one embodiment of the present of invention, same view from both direction.As shown in Figure 3, " U " type that the is shaped to fluorescent tube of the fluorescent tube 300 among this embodiment has a bridge joint 302 in its " U " type opening, and the magnet ring anchor ear 210 among this embodiment just is enclosed within on the bridge joint 302.Need to prove that the present invention does not limit the shape of fluorescent tube, any lamp tube shapes that can constitute the sealing moulding all is operable, also is not what fix for the position of magnet ring anchor ear 210, as long as can surround a certain cross section of fluorescent tube.Expect that easily thinner part helps less magnet ring anchor ear is installed to make it have relatively when designing fluorescent tube again, and the overall volume of lamp is reduced.Though shown lamp tube shapes is a preferable selection, and do not mean that scope of the present invention just is limited to shape disclosed herein here.For fluorescent tube, the present invention also has a place to improve, and exactly blast pipe is placed into the inside of fluorescent tube.As shown in Figure 3, at an end of " U " type, it is blast pipe 304 to recessed part that a place is arranged, compared with prior art (with reference to figure 1), blast pipe 304 in the fluorescent tube of the present invention no longer protrudes in the outside of fluorescent tube, has so just reduced the possibility of the blast pipe damage of fluorescent tube widely.Need explanation, use built-in blast pipe all more favourable for the safety in utilization and the life-span of fluorescent tube, but the blast pipe that is to use external is feasible equally, because the blast pipe of external is a technology relatively more commonly used at present, therefore just no longer describe in detail here, though after the application mainly is to be described in conjunction with built-in blast pipe, those skilled in the art will appreciate that the blast pipe of external can adopt technical scheme of the present invention equally.Continue to get back to Fig. 3 A and Fig. 3 B.Simultaneously, in blast pipe 304, except placing solid mercury 306, also added indium net 308, indium net 308 can make the startup of fluorescent tube and influence that work is subjected to ambient temperature reduce, and fluorescent tube starts instantaneous nominal light flux and the full power state of reaching in back.Better for the operating state that makes lamp, one or more ports that are placed with indium net 308 can be set in fluorescent tube again, for example, in this embodiment, the other end 310 of " U " type pipe just is provided with a port that is placed with indium net 308.The inwall of fluorescent tube 300 scribbles phosphor powder layer 312, the chamber of fluorescent tube contains gas and amalgam 314, the parameter of gas and amalgam can be with reference to the description of back among the present invention, and the amalgam among the present invention can adopt single amalgam, also can adopt a main amalgam to add the mode of several Auxiliary amalgams.Fig. 3 B has illustrated the structure of fluorescent tube 300 from the side, and it illustrated with the front that is connected of magnet ring anchor ear 210, had just no longer repeated here.
In another embodiment, fluorescent tube can be adopted as double-U-shaped fluorescent tube, has bridge joint to link to each other between two U type fluorescent tubes, for example has two place's bridge joints between two U type fluorescent tubes, lays respectively on two arms of two U type fluorescent tubes.And magnet ring support and magnet ring just are enclosed within on two bridge joints, surround a cross section of bridge joint.This fluorescent tube has also adopted the mode of Multipoint Drive, also is provided with an its enable port and several assistant starting ports on the top of two U type fluorescent tubes, and its enable port and assistant starting port all have built-in blast pipe.In this embodiment, be provided with an its enable port and three assistant starting ports on four tops of two U type fluorescent tubes, in the blast pipe of its enable port, be placed with indium net and amalgam, amalgam can adopt single amalgam, also can adopt a main amalgam to add the mode of several Auxiliary amalgams and is placed with the indium net in the blast pipe of assistant starting port.Equally, this fluorescent tube also can adopt the blast pipe of external.
In also having an embodiment, fluorescent tube can adopt fairly simple annular lamp tube, and magnet ring support and magnet ring just are enclosed within on the annular lamp tube, surrounds a cross section of fluorescent tube.The mode that this fluorescent tube can adopt Multipoint Drive or single-point to drive, for the Multipoint Drive mode, can be provided with an its enable port and several assistant starting ports on annular lamp tube, its enable port and assistant starting port all have the blast pipe of built-in or external.And, a port only is set generally, and can have the exhaust outlet of built-in or external for the single-point type of drive.Be placed with indium net and amalgam in the port, amalgam can adopt single amalgam, also can adopt a main amalgam to add the mode of several Auxiliary amalgams
For the fluorescent tube that uses among the present invention, set wherein each kind of parameter especially, for example, according to an embodiment, the gas of placing in the fluorescent tube is argon krypton gaseous mixture, and its gas atmosphere is 0.3 holder, and the air pressure of amalgam (mercuryvapour) is 5 microtorrs.The present invention has also set magnetic core quantity, coil quantity, iron oxide weight, the weight of amalgam and the electric current of discharge according to the lamp of different capacity.For example:
Magnetic core quantity can be according to following standard setting: 15W-1,23W-1,40W-1,40W/80W/120W150W/200W-2.Generally, the magnetic core quantity according to electromagnetic induction lamp of the present invention is 1-2.
The quantity of coil can be according to following standard setting: 15W-14 circle, 23W-15 circle, 40W-15 circle, 80W-18 circle, 120W-18 circle, 150W-18 circle, 200W-18 circle.Usually, the coil quantity according to electromagnetic induction lamp of the present invention is 〉=14.
The iron oxide weight of using in the magnet ring can be according to following standard setting: 15W-40g, 23W-74g, 40W-135g, 80W-180g, 120W-180g, 150W-180g, 200W-235g.
The weight of employed amalgam can be according to following standard setting: 15W-40mg, 23W-60mg, 40W-90mg, 80W-135mg, 120W-180mg, 150W-225mg, 200W-270mg.These amalgam can be placed in the port, also can be placed in the different ports.
Discharging current: 15W-2.2A, 23W-3A, 40W-4.2A, 80W-5A, 120W-6A, 150W-6.5A, 200W-9A.
Simultaneously, the power loss of the ferrite magnetic ring coil of electromagnetic induction lamp of the present invention is less than importing 4% of rate altogether.
On the basis of technique scheme, in conjunction with Fig. 4 another aspect of the present invention once is described, promptly how to improve the luminous efficiency of electromagnetic induction lamp.
For electromagnetic induction lamp, the relation of its discharging current and electric field is as follows, and in the positive column, the pass of discharging current and electric field is:
I = 2 πE ∫ 0 R σ e ( r ) rdr
Wherein R is the caliber of discharge, σ eBe the conductivity of positive column plasma, but approximate calculation is as follows:
σ e = - n e 3 N ( 2 e m ) 1 2 ∫ 0 ∞ ϵ Q ( ϵ ) ∂ f ∂ ϵ dϵ
The sectional area that is increased discharge loop by formula as can be known can effectively reduce electric current and conductivity.Can effectively reduce gas in the lamp like this because the Hg that high temperature takes place 2 +The compound phenomenon of decomposition:
Therefore the sectional area that suitably enlarges discharge is controlled the optimum temperature of plasma work, can effectively reduce the ionization loss of discharge.Main is to have solved the radially corona problem of mercury in the discharge, because the concentration that is decided by electronics of corona reduces electron concentration and can suppress corona discharge, makes the performance of lamp work more stable, can reduce the energy loss problem of high energy electron.
Fig. 4 A and Fig. 4 B are the structure charts according to the electromagnetic induction lamp of the light-emitting area with expansion of the present invention.As shown in Figure 4, this electromagnetic induction lamp comprises: lamp holder 402, lamp holder 402 can be installed on the lamp socket.The structure of this lamp holder 402 is the same with lamp holder in the conventional art, and the structure of lamp socket also is identical.Control circuit shell 404 is connected in lamp holder 402, and lamp holder 402 is enclosed within on the control circuit shell 404, is placed with control circuit 406 in the control circuit shell 404.The control circuit shell is connected with lampshade 405, and lampshade 405 is connected to fluorescent tube 408, and fluorescent tube 408 inwalls scribble phosphor powder layer 407, and the chamber of fluorescent tube contains gas and amalgam, and wherein gas is inert gas 409.Magnet ring anchor ear 410 is enclosed within on the fluorescent tube 408, surrounds a cross section of fluorescent tube 408, and the magnet ring anchor ear is fixed on the lampshade 405 by screw 411.Magnet ring 412 is arranged in magnet ring anchor ear 410, and magnet ring 412 also surrounds the above-mentioned cross section of fluorescent tube 408." U " type that is shaped as of fluorescent tube has a bridge joint among this embodiment in the opening of " U " type.Magnet ring anchor ear 410 is located in this bridge joint place, surrounds a cross section on the bridge joint.Be wound with coil 414 on the magnet ring 412, coil 414 is connected to control circuit 406, provides magnetic field to light electromagnetic induction lamp 400.With reference to the cut-away section structure among figure 4A and the 4B, two tops of visible fluorescent tube 408 respectively are provided with a built-in blast pipe 416, are placed with solid mercury 418 and indium net 20 in the blast pipe 416.Need explanation, the blast pipe 416 of the fluorescent tube 408 in this embodiment is placed in fluorescent tube inside, help the safe in utilization of fluorescent tube so more, be placed with solid mercury and indium net in the blast pipe, in addition, fluorescent tube 408 also has one or more other ports that are placed with the indium net, such as another port of " U " type, this port though in Fig. 4 A and 4B, analyse and observe, it will be appreciated by those skilled in the art that its structure.Maximum improvement is the shape of fluorescent tube 408 among the embodiment shown in Fig. 4 A and the 4B, is the shape of its bottom by it, though the fluorescent tube 408 among this embodiment also is to be " U " type, but its bottom expansion is mushroom-shaped, and the side-looking structure among Fig. 4 B is obvious by it.The fluorescent tube 408 of this shape has enlarged the sectional area in positive column zone, can control the optimum temperature of plasma work preferably, can effectively reduce the ionization loss of discharge.Main is to have solved the radially corona problem of mercury in the discharge, because the concentration that is decided by electronics of corona reduces electron concentration and can suppress corona discharge, makes the performance of lamp work more stable, can reduce the energy loss problem of high energy electron.
Except Fig. 4 A and the shown lamp tube shapes of 4B, fluorescent tube can also be " ∏ " type, and the bottom also enlarges and is mushroom-shaped.Perhaps, fluorescent tube can be a dome-type, and the bottom has the diameter that more strengthens.Need explanation, other shape so long as meet this criterion of sectional area that enlarges the positive column zone, all should be regarded as within the scope of the present invention.
Fluorescent tube among the embodiment described above is compared with the fluorescent tube of describing in conjunction with Fig. 3 A and 3B, only the profile (particularly bottom) at fluorescent tube goes up distinct, parameter for the set-up mode of the disposing way of wherein setting of ports mode, amalgam, exhaust outlet and various fluorescent tubes is equal identical with the above embodiments, no longer repeats herein.
According to the present invention, can coat rare-earth trichromatic fluorescent powder on the fluorescent tube among the above-mentioned various embodiment, make the electromagnetic induction lamp that can send colourama thus.
Below, the control circuit of electromagnetic induction lamp of the present invention once is described again, with reference to shown in Figure 5:
Anti-emi filter 501, can be an EM1 anti-emi filter, AC power is connected to anti-emi filter 501 inputs, through its inner secondary common mode and the filtering of one-level differential mode, can disturb high order harmonic component and suppress, thereby reduce the serious electromagnetic interference phenomenon between electrical network and this circuit greatly, to reach the national standard that conductibility is disturbed;
Bridge rectifier module 502 links to each other with anti-emi filter 501, carries out starting power supply for follow-up circuit especially semi-bridge inversion oscillation power module 505 provides direct current supply after the rectification;
Active power factor corrector 503, link to each other with bridge rectifier module 502, its inside includes the voltage automatic calibration circuit, also comprise an electrochemical capacitor, can be used as the power supply of subsequent conditioning circuit after this electric capacity charging, active power factor corrector 503 can be cut down the top pulse of electrochemical capacitor charging, and the ripple amplitude of reduction direct voltage, the circuit reactive power is reduced greatly, improve circuit active power, the output power factor of circuit is reached more than 0.99, constant voltage of active power factor corrector 503 outputs, cause has automatic adjustment function, thereby load is no longer changed because of the fluctuation of line voltage.Simultaneously, this electrochemical capacitor provides the secondary filtering effect again;
Closed loop light adjusting controller 504 links to each other with active power factor corrector 503, and closed loop light adjusting controller 504 provides the light modulation operating voltage for central processing unit 506;
Semi-bridge inversion oscillating circuit module 505 links to each other with closed loop light adjusting controller 504, for subsequent conditioning circuit provides operating voltage;
Central processing unit 506 links to each other with semi-bridge inversion oscillation power module 505, the work of control entire circuit;
Power take off 507 links to each other with central processing unit 506 with semi-bridge inversion oscillation power module 505;
Dim signal compensator 509 links to each other with central processing unit 506 with closed loop light adjusting controller 504, and the light modulation compensation is provided;
Start-up control device 510 links to each other with AC power, carries out the start-up control of electromagnetic induction lamp;
Electromagnetic inductor 508 links to each other with start-up control device 510 with power take off 507, and the output of electromagnetic inductor 508 connects electromagnetic induction lamp;
Protective circuit 511 links to each other with central processing unit 506 with power take off 507, detects output signal and feeds back to central processing unit 506.
Introduce an embodiment below, further specify closed loop light adjusting controller 504, semi-bridge inversion oscillating circuit module 505, central processing unit 506, power take off 507, dim signal compensator 504, start-up control device 510, electromagnetic inductor 508 and protective circuit 511 in half utility model.Fig. 6 is the circuit diagram of above-mentioned several parts among this embodiment.
As shown in Figure 6, among this embodiment, central processing unit is the HY4501 chip, and HY4501 is an electric ballast application-specific integrated circuit (ASIC) that integrates light modulation, driving, protective circuit, and dimming scope is at 20%-100%.
R2, R3 have constituted the closed loop light adjusting controller among this embodiment, and potentiometer R1 is the dim signal compensator, and R1 links to each other with R2, R3, and its sliding end is connected to the pin 3 of central processing unit HY4501, and dim signal is provided.
The semi-bridge inversion oscillating circuit module of this embodiment comprises two inversion pipes, the first inversion pipe is metal-oxide-semiconductor Q70, be connected to the 9th pin of HY4501 chip by resistance R 31, the second inversion pipe is metal-oxide-semiconductor Q80, be connected to the 11st pin of HY4501 chip by resistance R 25, as can be seen from Fig. 3, the grid of Q70 and Q80 links to each other with Q6 with triode Q7 with D11 by diode D21 respectively, triode Q7 and Q6 have constituted the auxiliary switching circuit of this semi-bridge inversion oscillating circuit module, owing to increased this two triodes, can effectively shorten the switching time of circuit, when operating frequency was the 300KHz left and right sides, the high-frequency loss of metal-oxide-semiconductor had clear improvement.Resistance R 24 among Fig. 3, R26, R27, R82, R83, diode D13, D91 and capacitor C 53 are the auxiliary element in the semi-bridge inversion oscillating circuit module.
The power take off of this embodiment is an inductance L 4, is connected to the drain electrode of source electrode and the metal-oxide-semiconductor Q80 of metal-oxide-semiconductor Q70, the power output when providing work for subsequent conditioning circuit.
The electromagnetic inductor of this embodiment is two and half camber magnet ring LN1 and LN2, and the fluorescent tube of electromagnetic induction lamp is clipped in the middle, and is wound with coil on magnet ring LN1 and the LN2, is respectively odd number circle (such as 17 circles) and even number circle (enclosing such as 18), with as the N utmost point and the S utmost point.
The start-up control device of this embodiment is a capacitor C 41, one end links to each other with AC power, the other end links to each other with electromagnetic inductor, provides starting resistor for electromagnetic inductor when electromagnetic induction lamp starts, and electromagnetic inductor provides operating voltage by semi-bridge inversion oscillating circuit module after the operate as normal.
The protective circuit of this embodiment comprises metal-oxide-semiconductor Q9; triode Q8; resistance R 28, R29, R36, R42, R81; capacitor C 40, C42, C51 and diode D90; from the power take off sampled output signal, and feed back to the 2nd pin of HY4501 by capacitor C 42, if output signal generation overvoltage or when entering capacitive mode; the work of HY4501 meeting halt circuit is with protective circuit.
The operation principle of this circuit is, control circuit generation high-frequency current flows to the coil on the magnet ring, magnet ring produces higher magnetic flux density, form alternating magnetic field, this alternating magnetic field in fluorescent tube, forms voltage with couple electrical energy, cause gas and amalgam ionization in the chamber, fluorescent material is hit in the ultraviolet ray that the mercury atom of ionization is launched, and hits fluorescent material so fluorescent tube is just launched ultraviolet ray, so fluorescent tube is just luminous.Adopt above-mentioned electromagnetic inductive lamp circuit can make electromagnetic induction lamp of the present invention reach following parameter:
Light efficiency〉80Lm/W;
Operating frequency〉200KHz;
Power factor〉0.99;
Life-span〉100000 hours;
Subzero 40 ° of C can start;
Harmonic content<8%.
Adopted technical scheme of the present invention, electromagnetic induction lamp of the present invention make fluorescent tube have higher luminous quantity and compact appearance structure, and its electromagnetic inductive lamp circuit can make operating frequency at 150~300KHz by improving the parameter and the structure of fluorescent tube.
The foregoing description provides to being familiar with the person in the art and realizes or use of the present invention; those skilled in the art can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.

Claims (21)

1. an electromagnetic induction lamp fluorescent tube is applicable to electromagnetic induction lamp, wherein is filled with gas and amalgam, it is characterized in that,
Gas in the described fluorescent tube is argon krypton gaseous mixture, and air pressure is 0.3 holder, and the air pressure of amalgam is 5 microtorrs.
2. electromagnetic induction lamp fluorescent tube as claimed in claim 1, it is characterized in that the blast pipe of described fluorescent tube is built-in, be placed on the inside of fluorescent tube, be placed with amalgam and indium net in the described blast pipe, described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams; Perhaps, the blast pipe of described fluorescent tube is an external, is placed on the outside of fluorescent tube, is placed with amalgam and indium net inside the Pass the described exhaust, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams.
3. electromagnetic induction lamp fluorescent tube as claimed in claim 2 is characterized in that, described fluorescent tube also has one or more ports that are placed with the indium net.
4. want 2 or 3 described electromagnetic induction lamp fluorescent tubes as right, it is characterized in that the weight of described amalgam is defined as according to watt level:
15W—40mg、23W—60mg、40W—90mg、80W—135mg、120W—180mg、150W—225mg、200W—270mg。
5. electromagnetic induction lamp fluorescent tube as claimed in claim 1 is characterized in that, described fluorescent tube is closed three-dimensional contouring.
6. electromagnetic induction lamp fluorescent tube as claimed in claim 5 is characterized in that, described fluorescent tube is an annular, and described magnet ring support and magnet ring are enclosed within on the described fluorescent tube, surround a cross section of described fluorescent tube; Perhaps, described fluorescent tube is double-U-shaped, has two bridge joints between two U type fluorescent tubes and links to each other, and described magnet ring support and magnet ring are enclosed within on the described bridge joint, surround a cross section of described bridge joint.
7. electromagnetic induction lamp fluorescent tube as claimed in claim 6 is characterized in that, the positive column zone of described fluorescent tube bottom has the sectional area of expansion.
8. electromagnetic induction lamp fluorescent tube as claimed in claim 7 is characterized in that, described fluorescent tube is " U " type, and a bridge joint is arranged in the opening of " U " type, and described magnet ring anchor ear and magnet ring are enclosed within on the described bridge joint, and the expansion of the bottom of described fluorescent tube is mushroom-shaped; Perhaps, described fluorescent tube is " Π " type, and bottom expansion is mushroom-shaped.
9. electromagnetic induction lamp fluorescent tube as claimed in claim 1 is characterized in that, the inwall of described fluorescent tube scribbles the protective layer of aluminium oxide, also scribbles rare-earth trichromatic fluorescent powder on protective layer.
10. an electromagnetic induction lamp comprises lamp holder, and lamp holder can be installed on the lamp socket; The control circuit shell is connected in described lamp holder, and described lamp sleeve is placed with control circuit in the described control circuit shell on described control circuit shell; Fluorescent tube is connected in described control circuit shell, and the inwall of described fluorescent tube scribbles phosphor powder layer, and the chamber of fluorescent tube contains gas and amalgam; The magnet ring anchor ear is enclosed within on the described fluorescent tube, surrounds a certain cross section of described fluorescent tube; Magnet ring is positioned in the described magnet ring anchor ear, and described magnet ring also surrounds the described cross section of described fluorescent tube; Coil on described magnet ring, links to each other with described control circuit, provides magnetic field to light electromagnetic induction lamp;
It is characterized in that,
Gas in the described fluorescent tube is argon krypton gaseous mixture, and air pressure is 0.3 holder, and the air pressure of amalgam is 5 microtorrs;
The quantity of described magnet ring inner magnetic core is 1-2;
The quantity of described coil is 〉=14.
11. electromagnetic induction lamp as claimed in claim 10 is characterized in that, according to the size of power, determines that the parameters of described electromagnetic induction lamp is:
Magnetic core quantity: 15W-1,23W-1,40W-1,40W/80W/120W150W/200W-2;
The quantity of coil: 15W-14 circle, 23W-15 circle, 40W-15 circle, 80W-18 circle, 120W-18 circle, 150W-18 circle, 200W-18 circle.
The iron oxide weight of using in the magnet ring: 15W-40g, 23W-74g, 40W-135g, 80W-180g, 120W-180g, 150W-180g, 200W-235g;
Discharging current: 15W-2.2A, 23W-3A, 40W-4.2A, 80W-5A, 120W-6A, 150W-6.5A, 200W-9A.
12. electromagnetic induction lamp as claimed in claim 10, it is characterized in that the blast pipe of described fluorescent tube is built-in, be placed on the inside of fluorescent tube, be placed with amalgam and indium net in the described blast pipe, described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams; Perhaps, the blast pipe of described fluorescent tube is an external, is placed on the outside of fluorescent tube, is placed with amalgam and indium net inside the Pass the described exhaust, and described amalgam is that single amalgam or a main amalgam add several Auxiliary amalgams.
13. electromagnetic induction lamp as claimed in claim 12 is characterized in that, described fluorescent tube also has one or more ports that are placed with the indium net.
14., it is characterized in that the weight of described amalgam is defined as according to watt level as claim 12 or 13 described electromagnetic induction lamps:
15W—40mg、23W—60mg、40W—90mg、80W—135mg、120W—180mg、150W—225mg、200W—270mg。
15. electromagnetic induction lamp as claimed in claim 10 is characterized in that, described fluorescent tube is closed three-dimensional contouring.
16. electromagnetic induction lamp as claimed in claim 15 is characterized in that, described fluorescent tube is an annular, and described magnet ring support and magnet ring are enclosed within on the described fluorescent tube, surround a cross section of described fluorescent tube; Perhaps, described fluorescent tube is double-U-shaped, has two bridge joints between two U type fluorescent tubes and links to each other, and described magnet ring support and magnet ring are enclosed within on the described bridge joint, surround a cross section of described bridge joint.
17. electromagnetic induction lamp as claimed in claim 15 is characterized in that, the positive column zone of described fluorescent tube bottom has the sectional area of expansion.
18. electromagnetic induction lamp as claimed in claim 17 is characterized in that, described fluorescent tube is " U " type, and a bridge joint is arranged in the opening of " U " type, and described magnet ring anchor ear and magnet ring are enclosed within on the described bridge joint, and the expansion of the bottom of described fluorescent tube is mushroom-shaped; Perhaps, described fluorescent tube is " Π " type, and bottom expansion is mushroom-shaped.
19. electromagnetic induction lamp as claimed in claim 10 is characterized in that, the inwall of described fluorescent tube scribbles the protective layer of aluminium oxide, also scribbles rare-earth trichromatic fluorescent powder on protective layer.
20. electromagnetic induction lamp as claimed in claim 10 is characterized in that, described control circuit comprises:
Anti-emi filter links to each other with AC power;
The bridge rectifier module links to each other with anti-emi filter;
Active power factor corrector links to each other with the bridge rectifier module;
The closed loop light adjusting controller links to each other with active power factor corrector;
Semi-bridge inversion oscillating circuit module links to each other with the closed loop light adjusting controller;
Central processing unit links to each other with semi-bridge inversion oscillation power module;
Power take off links to each other with central processing unit with semi-bridge inversion oscillation power module;
Electromagnetic inductor links to each other with the start-up control device with power take off;
The dim signal compensator links to each other with central processing unit with the closed loop light adjusting controller;
The start-up control device links to each other with AC power;
Protective circuit links to each other with central processing unit with power take off, detects output signal and feeds back to central processing unit.
21. electromagnetic induction lamp as claimed in claim 20 is characterized in that, described central processing unit is a HY4501 chip.
CNB2005100276173A 2005-07-08 2005-07-08 Electromagnetic induction lamp and lamp tube Expired - Fee Related CN100501909C (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
CN101958222B (en) * 2009-07-13 2012-05-23 上海宏源照明电器有限公司 Electrode-less lamp and lighting tube thereof
CN101956902B (en) * 2009-07-13 2012-12-05 上海宏源照明电器有限公司 Low-power electrode-less lamp and lamp tube thereof
TWI493593B (en) * 2014-11-25 2015-07-21

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546285A (en) * 1980-10-29 1985-10-08 U.S. Philips Corporation Low-pressure mercury vapor discharge lamp
CN2857217Y (en) * 2005-07-08 2007-01-10 上海宏源照明电器有限公司 Electromagnetic induction lamp and its tube

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546285A (en) * 1980-10-29 1985-10-08 U.S. Philips Corporation Low-pressure mercury vapor discharge lamp
CN2857217Y (en) * 2005-07-08 2007-01-10 上海宏源照明电器有限公司 Electromagnetic induction lamp and its tube

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