CN101116378A - Lamp base for a high-pressure discharge lamp and corresponding high-pressure discharge lamp - Google Patents
Lamp base for a high-pressure discharge lamp and corresponding high-pressure discharge lamp Download PDFInfo
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- CN101116378A CN101116378A CN 200680004641 CN200680004641A CN101116378A CN 101116378 A CN101116378 A CN 101116378A CN 200680004641 CN200680004641 CN 200680004641 CN 200680004641 A CN200680004641 A CN 200680004641A CN 101116378 A CN101116378 A CN 101116378A
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Abstract
The invention relates to a lamp base (2) for a high-pressure discharge lamp comprising an ignition transformer (1000), which is placed in the interior (214) of the lamp base (2) and which serves to ignite the gas discharge inside the high-pressure discharge lamp. To this end, the ignition transformer (1000) comprises a core on which its windings (1001, 1002) are placed. The invention is characterized in that the core is formed by a first (1004) and by at least one second core part (1005, 1006, 1007), which are each made of a ferromagnetic or ferrimagnetic material and are separated by at least one gap (1008). The first core part (1004) has a cylindrical section on which the windings (1001, 1002) of the ignition transformer (1000) are placed, and core parts (1004, 1005, 1006, 1007) are formed in such a manner that the core, apart from the at least one gap (1008), has a closed shape.
Description
The present invention relates to a kind of lamp socket and a kind of high-pressure discharge lamp of the high-pressure discharge lamp as described in the preamble according to claim 1.
Background technology
This lamp socket is for example open in WO 97/35336.The document has been described a kind of lamp socket of high-pressure discharge lamp, and this lamp socket has the ignition transformer in the inner space that is disposed in this lamp socket, and this ignition transformer has closed core.Especially, ignition transformer is constructed to toroidal transformer.Ignition transformer with closed core has following shortcoming, if promptly high-pressure discharge lamp drives with the electric current of alternating polarity and the flow through secondary winding of ignition transformer of lamp current, the ignition transformer that then has closed core is owing to it hinders the change in polarity of lamp current at the high inductance of lamp duration of work after ignition phase finishes.In addition, state reaches capacity rapidly in this ignition transformer, so that this ignition transformer has lower energy storage capacity and occurs than higher electric current after the ignition phase of high-pressure discharge lamp finishes, this electric current makes the electronic unit overload of the operating equipment of lamp, because the choking effect of the secondary winding of this ignition transformer is lower.In addition, Transformer Winding being plated in also is complicated on the ring-shaped core.
Disclose a kind of lamp socket with the ignition transformer in the inner space that is disposed in lamp socket in WO 02/51214, this ignition transformer is constructed to bar type transformer.Ignition transformer generates the ferromagnetism stray field, and the metal of this stray field and lamp socket and high-pressure discharge lamp partly interacts and influences lamp current.Especially, stray field causes the electric current in the metal shielding, and this shielding case surrounds lamp socket in order to improve electromagnetic compatibility.The change in polarity of the current affects lamp current in the metal shielding (current zero phase place just) and can cause extinguishing of high-pressure discharge lamp.In addition, the loss the shielding case that causes owing to the electromagnetism alternating field of sending from ignition transformer during producing ignition voltage pulse of available ignition voltage is reduced.When bar type transformer was used as ignition transformer, ignition voltage pulse greatly was attenuated by metal shielding.
Summary of the invention
Task of the present invention is, a kind of lamp socket of high-pressure discharge lamp is provided, and this lamp socket has been avoided the above-mentioned shortcoming of prior art.
According to the present invention, this task solves by the described feature of claim 1.Particularly advantageous embodiment of the present invention is illustrated in the dependent claims.
Lamp socket according to high-pressure discharge lamp of the present invention has in the inner space that is disposed in lamp socket, be used for lighting the ignition transformer of the gas discharge of high-pressure discharge lamp, wherein the iron core of ignition transformer is made of first iron core part and at least one second iron core part, these iron core parts are made by ferromagnetic material or ferrimagnetic material respectively and are separated by at least one gap, wherein first iron core part has cylindrical part, on this cylindrical part, arrange the winding of ignition transformer, and these iron core parts are configured, so that at least one second iron core part is crossed over the cylindrical part of first iron core part and produced magnetic loop from first end of first iron core part to second end of first iron core part.
Because the ignition transformer iron core is implemented on two parts ground at least, have at least one gap and so do not have an above-mentioned shortcoming according to the toroidal transformer of above-cited prior art so guaranteed transformer core.Especially, be disposed in according to the secondary winding of the ignition transformer in the lamp socket of the present invention thereby directly guarantee fully the restriction lamp current after the gas discharge in lighting high-pressure discharge lamp and prevent that lamp current from not expecting that the highland raises.In addition, the cylindrical part of first iron core part can also be realized directly accurately implementing on first iron core part or on bobbin and arranging Transformer Winding, and this bobbin surrounds the cylindrical part of first iron core part.Construct at least two iron core parts, so that at least one second iron core part is crossed over part first iron core part, that be equipped with winding and is produced magnetic loop from first end of first iron core part to second end (1004) of first iron core part, this structure has greatly reduced the stray field of ignition transformer, is distributed in fully by in the iron core part of being made by ferromagnetic material and ferrimagnetic material because the magnetic line of force is approximate.Thereby, ignition transformer induces inappreciable electric current in the metal shielding of lamp socket, this shielding case is used to improve electromagnetic compatibility, and thereby, ignition transformer does not have the shortcoming according to lamp socket above-cited prior art, that be equipped with bar type transformer.
Preferably, be arranged or form the iron core part U font of transformer core a framework, this framework only interrupts by at least one gap.Just, under latter instance, the iron core part of transformer along closure, preferably be distributed in a space curve in the plane and arrange.
At least one second iron core part is crossed over the cylindrical part of first iron core part, so that produces the magnetic loop from first end of first iron core part to second end of first iron core part.That is to say, bring out the magnetic line of force overwhelming majority of coming from first of first iron core part and drawn second end of getting back to first iron core part by at least one second iron core part.
At least one gap is constructed to air gap in an advantageous manner, perhaps arrange relative permeability in the gap of at least one between iron core part than the low material of relative permeability ferromagnetic or ferrimagnetic iron core part material, so that the effect of the above-mentioned restriction electric current of the secondary winding of enough energy storage capacity of assurance ignition transformer and guarantee point thermoelectricity depressor.The material that above-mentioned relative permeability is littler preferably is used to connect the adhesive of at least two iron core parts.Thus, do not need extra clamper, so that these iron core parts are fixed in desired position and the orientation for iron core part.Replacedly, replace adhesive also can use the filler of electric insulation, this filler is filled the iron core part of ignition transformer and at least one gap between the lamp socket chamber, is furnished with ignition transformer in the lamp socket chamber.Ferrite (for example nickel-zinc-ferrite) with high resistivity preferably is used as the material of iron core part.Thus can be to first iron core part with the direct coiling of Transformer Winding (for example secondary winding).
At least one gap between the iron core part of ignition transformer advantageously has the width that is less than or equal to 4mm, so that keep the stray field of transformer little.
In order to realize the simple manufacturing of ignition transformer, and in order to utilize spatially the separately connection of the direct high pressure of secondary winding to realize the simple contact of Transformer Winding, secondary winding and elementary winding be arranged superposed preferably, and wherein secondary winding is positioned at inner and elementary winding is positioned at externally and arranges.Preferably, secondary winding directly by coiling to the cylindrical part of first iron core part or by coiling to bobbin, this bobbin surrounds the above-mentioned part of first iron core part.Elementary winding preferably is disposed in the secondary winding top dividually by electric insulation.
In lamp socket according to the present invention, preferably lay the complete pulse ignition device of high-pressure discharge lamp.Except ignition transformer, pulse ignition device also comprises gap or threshold element, and by this threshold element, ignition capacitor discharges when surpassing puncture voltage.The puncture voltage of gap or threshold element advantageously at 400V in the scope of 1500V, and the turn ratio of Transformer Winding is advantageously in 10 to 80 scope.Guaranteed thus,, and, after ignition phase, excessive loss power in the secondary winding that lamp current is flowed through, do not occurred on the other hand at the lamp duration of work on the one hand by the sufficiently high ignition voltage pulse of pulse ignition device generation until 30kV.Preferably, the secondary winding of ignition transformer additionally is configured for this purpose, so that the D.C. resistance of this secondary winding is less than 1 ohm.
According to embodiments of the invention, ignition transformer has the bobbin of the cylindrical part that surrounds first iron core part, arrange at least one in the Transformer Winding on this bobbin, wherein this bobbin is equipped with the clamping device that is used at least one second iron core part.Replacedly, this clamping device can be constructed to the part of the housing of ignition transformer, arranges for example first iron core part and one or two windings of transformer and the bobbin of arranging Transformer Winding in case of necessity in this housing.
The above-mentioned clamping device that is used at least one second iron core part preferably includes wink actuation mechanism (Schnappmechanism) or blocking mechanism.At least one second iron core part can be fixed on respect in first iron core part position and orientation given in advance in simple mode thus.
According to a second embodiment of the present invention, in the cavity of lamp socket, arrange at least one second iron core part of ignition transformer, so that therefore the single parts of ignition transformer just are installed when inserting lamp socket.Preferably, the above-mentioned cavity that is used at least one second iron core part is positioned at one or more wall of lamp socket, and these walls constitute the chamber of ignition transformer or have the chamber of first iron core part of the ignition transformer that is furnished with winding on it.Therefore, at least one of transformer second iron core part is constructed to the part of lamp socket or locular wall, and so the locular wall of structure is inserting first iron core part magnetic stray field of being responsible for limiting best ignition transformer in the chamber afterwards.Replacedly, at least one second iron core part is fixed in the above-mentioned chamber by the clamping device that is placed on the lamp socket.This clamping device preferably includes wink actuation mechanism or blocking mechanism.
Description of drawings
The a plurality of preferred embodiments of following reference are further set forth the present invention.Wherein:
Fig. 1 shows the schematic side elevation that has according to the high-pressure discharge lamp of lamp socket of the present invention,
Fig. 2 shows the vertical view of inner space of the lamp socket of the high-pressure discharge lamp shown in Fig. 1,
Fig. 3 shows the circuit sketch of the pulse ignition device that is placed in the lamp socket,
Fig. 4 shows the schematic diagram very little according to the mark of two views of the ignition transformer of the first embodiment of the present invention,
Fig. 5 shows the very little schematic diagram of mark of two views of ignition transformer according to a second embodiment of the present invention,
Fig. 6 shows the schematic diagram of mark cun of two views of the ignition transformer of a third embodiment in accordance with the invention,
Fig. 7 shows the schematic diagram of mark cun of two views of the ignition transformer of a fourth embodiment in accordance with the invention,
Fig. 8 shows the schematic diagram of three views of the lamp socket with ignition transformer according to a sixth embodiment of the invention,
Fig. 9 shows the schematic diagram of the lamp socket with ignition transformer according to a seventh embodiment of the invention,
Figure 10 shows the schematic diagram of two views of ignition transformer according to a fifth embodiment of the invention,
Figure 11 shows the very little schematic diagram of mark of two views of ignition transformer according to a sixth embodiment of the invention.
Preferred embodiment described in Fig. 1, high-pressure discharge lamp is a halogen metal steam high-pressure discharge lamp, is preferably the no mercury halogen metal steam high-pressure discharge lamp that is used for vehicle head lamp.
High-pressure discharge lamp has the discharge vessel 11 that is surrounded by vitreous outer bulb 12, and this discharge vessel 11 is made by quartz glass and had the electrode 13,14 that is disposed in wherein, is used to produce gas discharge.Electrode 13,14 links to each other with the power line 15 or 16 of drawing from discharge vessel 11 respectively, supplies electric energy by these power lines to electrode.The combiner of being made up of discharge vessel 11 and outer bulb 12 1 is fixed in the lamp socket 2.Lamp socket 2 comprises the lid 22 of the chamber of outer part 21 of lamp socket and the outside branch 21 of sealing lamp socket, and comprises the gang socket 40 that is used for to the high-pressure discharge lamp power supply.Outer part 21 of lamp socket and lid 22 and socket shell 40 are surrounded by two-part metal-back (not shown).This metal-back has the disc opening at lamp socket top 211.
The outer part 21 of lamp socket has and is essentially foursquare cross section.Inner space shown in Fig. 2, the outer part 21 of lamp socket is divided into the chamber 214,215 of two different sizes by dividing plate 213.Transformer 1000 is installed in the first less Room 214, and this transformer 1000 is as the ignition transformer that is installed in pulse ignition device in the lamp socket 2, high-pressure discharge lamp.In the second bigger Room 215, arrange other parts 61,62 of pulse ignition device.Outside lamp socket, embed electric contacts in the part 21.This electric contacts is made by stainless steel and is constituted a combiner with the outer part 21 of lamp socket.The end 31,32 of this electric contacts has smooth contact-making surface.First end 31 of electric contacts extends in first Room 214 and welds together with the ignition voltage output of the direct high pressure of ignition transformer 1000 after ignition transformer 1000 is installed.Second end 32 of electric contacts extends in second Room 215, and this second end is equipped with the through hole that passes 33 of the internal power cord 15 that is used for high-pressure discharge lamp.Be provided with groove 2171 outside lamp socket in the part 21, this groove 2171 is determined the boundary line by hollow cylinder pivoted arm (Steg) 217.Second end 32 of contact element constitutes the part of trench bottom.After second end 32 with internal power cord 15 and contact element welds together, electricity consumption insulating packing filling slot 2171, so that the welding position between two lamp parts 15,32 is embedded in the filler.The end that draws back external power cord 16 in the lamp socket 2, that go out from the distal process away from lamp socket of discharge vessel 11 extends to the hollow cylinder pivoted arm 218, and this pivoted arm 218 is integrally formed on the outer part 21 of lamp socket equally.Other hollow cylinder pivoted arm 219 is used for fixing and covers 22 and be used for fixing gang socket 40, and this gang socket 40 constitutes the electric connection terminal of high-pressure discharge lamps.The end of pivoted arm 218 is equipped with the bearing-surface 2181 that is used for the mounting panel (not shown), and the shape of this bearing-surface 2181 is suitable for coupling ground (passgerecht) and cooperates with the cross section of second Room 215.Mounting panel is sealing chamber 215 after it is installed.The parts (such as the gap 62 of ignition capacitor 61 and pulse ignition device) that are arranged on the mounting panel are projected in second Room 215.In the sidewall 2151,213 of first Room 214, arrange a plurality of grooves 2142,2131 or be used for the guiding pivoted arm of ignition transformer 1000.Groove 2142,2131 or guiding pivoted arm cooperate with the housing of ignition transformer 1000, so that the position of ignition transformer 1000 in first Room 214 determined thus.In addition, peg 2144 is arranged in the base plate 2143 of chamber 214, and this peg 2144 is with first end 31 and the fitting depth that is installed in the definite ignition transformer 1000 of ignition voltage output on this first end, transformer 1000 of contact element.The ignition voltage output of ignition transformer welds together with end 31.The end of elementary winding links to each other with the printed conductor of mounting panel respectively.Ignition transformer 1000 is installed on the peg 2144 as spacer.Intermediate space between the sidewall 2151,213 of the ignition transformer 1000 and first Room 214 is filled with the filler of electric insulation.Lid 22 covers mounting panel and outside 21 two chambers 214,215 of dividing of sealing lamp socket.
The circuit sketch of schematically illustrated pulse ignition device in Fig. 3, the parts 61,62,1000 of this pulse ignition device are disposed in the lamp socket 2.Pulse ignition device is by voltage transformer supply direct voltage U
DC, this direct voltage U
DCIgnition capacitor 61 is charged to the puncture voltage of the gap 62 in parallel by Ohmic resistance 60 with ignition capacitor 61.The puncture voltage of gap 62 is 800V.Reaching under the situation of puncture voltage, ignition capacitor 61 is by elementary winding 1001 discharges of ignition transformer 1000.Thus, induce high-voltage pulse in the secondary winding 1002 of ignition transformer 1000, this high-voltage pulse causes lighting the gas discharge among the high-pressure discharge lamp La.High-pressure discharge lamp La generates the alternating voltage U that is used to drive high-pressure discharge lamp by voltage transformer from the onboard power system voltage of vehicle
ACBecause secondary winding 1002 connects with the discharge path of high-pressure discharge lamp, so after the ignition phase of end high-pressure discharge lamp La, the lamp current secondary winding 1002 of flowing through.
The different embodiment that is disposed in the ignition transformer in the part 21 outside lamp socket 2 or the lamp socket has been shown at Fig. 4 to 7 in 10.
Two views in Fig. 4, have been schematically shown according to the ignition transformer 1000 of first embodiment.Ignition transformer 1000 has columniform first iron core part 1004, and this iron core part has oval cross section, the secondary winding 1002 of coiling ignition transformer 1000 on this first iron core part 1004.Above secondary winding 1002, arrange the bobbin 1003 that is made of plastics, the elementary winding 1001 of coiling ignition transformer 1000 on this bobbin 1003.Bobbin 1003 surrounds first iron core part 1004 and the secondary winding 1002 that is wound on this first iron core part 1004.The iron core of ignition transformer 1000 is made of other iron core part 1005,1006,1007 of first iron core part 1004 and three, these other iron core part 1005,1006,1007 is bonded into a framework by adhesive 1008, and this framework only interrupts by the gap that is filled with adhesive 1008.Iron core part 1004 to 1007 is constructed to ferrite.The numerical value that is equipped with arrow among Fig. 4 is the size of the appropriate section of unit explanation ignition transformer 1000 with the millimeter.The gap that is filled with adhesive 1008 is determined size, so that the summation of its width is 0.1mm.Therefore, each gap on average has only 0.025mm.Secondary winding 1002 has 135 circles, and elementary winding 1001 has 3 circles.The D.C. resistance of secondary winding 1002 is 0.48 ohm.Secondary winding 1002 has the inductance of 1.4mH.But three iron core parts 1005,1006 and 1007 also can be constructed to the U font ferrite part of integral type, thus only between first iron core part 1004 and corresponding U font arm existence be filled with the gap of adhesive 1008.
Two views in Fig. 5, have been schematically shown according to the ignition transformer 2000 of second embodiment.Ignition transformer 2000 has columniform first iron core part 2004, and this first iron core part 2004 has oval cross section, the secondary winding 2002 of coiling ignition transformer 2000 on this first iron core part 2004.Above secondary winding 2002, arrange the bobbin 2003 that is made of plastics, the secondary winding 2001 of coiling ignition transformer 2000 on this bobbin 2003.Bobbin 2003 surrounds first iron core part 2004 and the secondary winding 2002 that is wound on this first iron core part 2004.The iron core of ignition transformer 2000 is made of other iron core part 2005,2006,2007 of first iron core part 2004 and three.These iron core parts 2004,2006,2007 are bonded into the U font by adhesive 2008.Iron core part 2005 constitutes the yoke of this U font and separates with this U font by one or two air gap 2009.Iron core part 2004 to 2007 constitutes a framework, and this framework only interrupts by the gap and the air gap 2009 of filling by adhesive 2008.Iron core part 2004 to 2007 is constructed to nickel-zinc-ferrite.The numerical value that is equipped with arrow among Fig. 5 is the size that unit has illustrated the appropriate section of ignition transformer 2000 with the millimeter.The gap that is filled with adhesive 2008 is determined size, so that the summation of its width is 0.05mm.Two air gaps 2009 have and respectively are the width of 0.8mm.Secondary winding 2002 has 135 circles, and elementary winding 2001 has 4 circles.The D.C. resistance of secondary winding 2002 is 0.48 ohm.Secondary winding 2002 has the inductance of 0.9mH.The bonding of transformer core is for example by the housing that surrounds whole transformer 2000 or by being placed in clamper on the bobbin 2003, yoke 2005 or guaranteeing by the filler in the chamber 214 that is disposed in lamp socket 2.In the zone of air gap 2009, the metal shielding (not shown) that surrounds lamp holder 21 preferably has perforation, so that reduce the magnetic line of force that comes out from air gap 2009 and the interaction of shielding case.
Two views in Fig. 6, have been schematically shown according to the ignition transformer 3000 of the 3rd embodiment.Ignition transformer 3000 has first iron core part 3004 that is essentially the U font.The U font arm of first iron core part 3004 has oval cross section, the secondary winding 3002 of coiling ignition transformer 3000 on this first iron core part 3004.This U font arm is constructed cylindrically.Above secondary winding 3002, arrange the bobbin 3003 that is made of plastics, the elementary winding 3001 of coiling ignition transformer 3000 on this bobbin 3003.Bobbin 3003 surrounds the above-mentioned columniform U font arm and the secondary winding 3002 that is wound on this first iron core part 3004 of first iron core part 3004.The iron core of ignition transformer 3000 is made of with second iron core part 3005 that is constructed to yoke first iron core part 3004 of U font, these iron core parts are bonded into a framework by adhesive 3008, and this framework only interrupts by two gaps that are filled with adhesive 3008. Iron core part 3004 and 3005 is constructed to ferrite.The numerical value that is equipped with arrow among Fig. 6 is the size that unit has illustrated the appropriate section of ignition transformer 3000 with the millimeter.The gap that is filled with adhesive 3008 is determined size, so that the summation of its width is 1mm.Therefore, each gap on average has only 0.5mm.Secondary winding 3002 has 135 circles, and elementary winding 3001 has 3 circles.The D.C. resistance of secondary winding 3002 is 0.48 ohm.
Two views in Fig. 7, have been schematically shown according to the ignition transformer 4000 of the 4th embodiment.Ignition transformer 4000 has columniform first iron core part 4004, and this first iron core part 4004 has oval cross section, the secondary winding 4002 of coiling ignition transformer 4000 on this first iron core part 4004.Above secondary winding 4002, arrange the bobbin 4003 that is made of plastics, the secondary winding 4001 of coiling ignition transformer 4000 on this bobbin 4003.Bobbin 4003 surrounds first iron core part 4004 and the secondary winding 4002 that is wound on this first iron core part 4004.The iron core of ignition transformer 4000 is made of other iron core part 4005,4006,4007 of first iron core part 4004 and three, these other iron core part 4005,4006,4007 is bonded into a framework by adhesive 4008, and this framework only interrupts by the gap that is filled with adhesive 4008.Iron core part 4004 to 4007 is constructed to ferrite.The size of appropriate section of ignition transformer 4000 that the numerical value that is equipped with arrow among Fig. 7 has been cell descriptions with the millimeter.The gap that is filled with adhesive 4008 is determined size, so that the summation of its width is 0.1mm.Therefore, each gap on average has only 0.025mm.Secondary winding 4002 has 135 circles, and elementary winding 4001 has 3 circles.The D.C. resistance of secondary winding 4002 is 0.48 ohm.Be the littler longitudinal size of ferrite 4005 and 4006 with unique difference of first embodiment.
In Figure 10, schematically show ignition transformer 5000 according to the 5th embodiment.Ignition transformer 5000 has columniform first iron core part 5004, and this first iron core part 5004 has oval cross section, the secondary winding 5002 of coiling ignition transformer 5000 on this first iron core part 5004.Above secondary winding 5002, arrange the bobbin 5003 that is made of plastics, the secondary winding 5001 of coiling ignition transformer 5000 on this bobbin 5003.Bobbin 5003 surrounds first iron core part 5004 and the secondary winding 5002 that is wound on this first iron core part 5004.The iron core of ignition transformer 5000 is made of first iron core part 5004 and another iron core part 5005 that is essentially the U font.The short U font arm of second iron core part 5005 towards first iron core part 5004 from the outstanding end of bobbin 5003, so that iron core part 5004,5005 constitutes a framework, and this framework is two air gaps, 5009 interruptions between the end of the U font arm by second iron core part 5005 and first iron core part 5004 only.Iron core part 5004 and 5005 is constructed to ferrite.The numerical value that is equipped with arrow among Fig. 7 is the size that unit has illustrated the appropriate section of ignition transformer 5000 with the millimeter.These two air gaps 5009 have the width of 2mm respectively.Secondary winding 5002 has 135 circles, and elementary winding 5001 has 4 circles.The D.C. resistance of secondary winding 5002 is 0.48 ohm.Bobbin 5003 be equipped with four elastic constructions that are used for second iron core part 5005, folder shape clamper 5010, the free end bending of these clampers.These four clampers 5010 can be realized the fixing of iron core part 5005 by the wink actuation mechanism.On clamper, peg is set at apart from the place of the hook-shaped free end certain distance of clamper 5010, this distance is corresponding to the thickness of the pedestal of U shaped iron core parts 5005, so that the pedestal of U shaped iron core parts 5005 is maintained in each clamper between its hook-shaped end and the corresponding peg.
In Fig. 8, schematically show three views of the 6th embodiment of ignition transformer 8000 and lamp socket 2 '.Ignition transformer 8000 has columniform first iron core part 8004, and this first iron core part 8004 has oval cross section, the secondary winding 8002 of coiling ignition transformer 8000 on this first iron core part 8004.Above secondary winding 8002, arrange the bobbin 8003 that is made of plastics, the elementary winding 8001 of coiling ignition transformer 8000 on this bobbin 8003.Bobbin 8003 surrounds first iron core part 8004 and the secondary winding 8002 that is wound on this first iron core part 8004.The iron core of ignition transformer 8000 is made of ferrimagnetic first iron core part 8004 and three other iron core parts 8005,8006,8007 that are constructed to ferrite-plate.Ferrite- plate 8005 and 8006 is fixed on two opposed side inwalls of the chamber 20 ' in the lamp socket by guiding bolt or gib block 8010, in chamber 20 ', be furnished with have the position thereon Transformer Winding 8001,8002 and first iron core part 8004 of bobbin 8003.The clamper 8011 (Fig. 8, the diagram that does not have first iron core part on the left side) that is used to be positioned at the ferrite-plate 8007 on this base plate is being installed on the base plate of chamber 20 '.Will have the position thereon Transformer Winding 8001,8002 and after first iron core part 8004 of bobbin 8003 inserts in the chambers 20 ', transformer 8000 (Fig. 8, the right diagram) just intactly is installed.The setting height(from bottom) of transformer 800 is determined by clamper 8011.Iron core part 8004 to 8007 constitutes a framework, and this framework only interrupts by gap narrow, that be filled with filler or air.
In Fig. 9, schematically shown ignition transformer 9000 the 7th embodiment and be used for the lamp socket of ignition transformer 9000 chamber 20 ".Ignition transformer 9000 has columniform first iron core part 9004, and this first iron core part 9004 has oval cross section, the secondary winding 9002 of coiling ignition transformer 9000 on this first iron core part 9004.Above secondary winding 9002, arrange the bobbin 9003 that is made of plastics, the secondary winding 9001 of coiling ignition transformer 9000 on this bobbin 9003.Bobbin 9003 surrounds first iron core part 9004 and the secondary winding 9002 that is wound on this first iron core part 9004.The iron core of ignition transformer 9000 is made of cavity ferrimagnetic first iron core part 8004 and U font, that be filled with ferrite powder 9005.This cavity 9005 in two opposed sidewalls and chamber 20 " the base plate top extend, " middle layout is equipped with first iron core part 9004 of Transformer Winding 9001,9002 in this chamber 20.
Two views in Figure 11, have been schematically shown according to the ignition transformer 6000 of the 6th embodiment.Ignition transformer 6000 has columniform first iron core part 6004, and this first iron core part 6004 has oval cross section, the secondary winding 6002 of coiling ignition transformer 6000 on this first iron core part 6004.Above secondary winding 6002, arrange the bobbin 6003 that is made of plastics, the elementary winding 6001 of coiling ignition transformer 6000 on this bobbin 6003.Bobbin 6003 surrounds first iron core part 6004 and the secondary winding 6002 that is wound on this first iron core part 6004.The iron core of ignition transformer 6000 is made of other iron core part 6006,6007 of first iron core part 6004 and two.These iron core parts 6004,6006,6007 are bonded into the U font by adhesive 6008.Iron core part 6004,6006,6007 is constructed to nickel-zinc-ferrite.The numerical value that is equipped with arrow among Figure 11 is the size that unit has illustrated the appropriate section of ignition transformer 6000 with the millimeter.The gap that is filled with adhesive 6008 is determined size, so that the summation of its width is 0.05mm.The free end of first iron core part 6004 is 3.2mm with air gap 6005 between the free end that is parallel to the 3rd parts 6007 unshakable in one's determination that first iron core part 6004 aims at.Secondary winding 6002 has 135 circles, and elementary winding 6001 has 4 circles.The D.C. resistance of secondary winding 6002 is 0.48 ohm.Secondary winding 6002 has the inductance of 0.9mH.
The embodiment that the invention is not restricted to elaborate above.For example replace the U shaped iron core parts 5005 among Figure 10 can use semicircular iron core part.But the iron core part of other shape and combination also is possible arbitrarily, so that realize closed as far as possible transformer core, this transformer core only interrupts by narrow relatively gap.
The present invention is particularly suitable for not having mercury halogen metal steam high-pressure discharge lamp, and this no mercury halogen metal steam high-pressure discharge lamp is used as the light source in the vehicle head lamp.But, also be used for the high-pressure discharge lamp of other type according to lamp socket of the present invention, especially also be used for mercurous halogen metal steam high-pressure discharge lamp.
Claims (18)
1. the lamp socket of a high-pressure discharge lamp, this lamp socket has the ignition transformer (1000) in the inner space (214) that is disposed in lamp socket (2), be used for lighting the gas discharge of high-pressure discharge lamp, wherein, described ignition transformer (1000) has iron core, on described iron core, arrange its winding (1001,1002), it is characterized in that, described iron core is by first iron core part (1004) and at least one second iron core part (1005,1006,1007) constitute, described iron core part is made by ferromagnetic material or ferrimagnetic material respectively and is separated by at least one gap (1008), wherein, described first iron core part (1004) has cylindrical part, the winding (1001 of the described ignition transformer of coiling (1000) on described cylindrical part, 1002), and make described iron core part (1004,1005,1006,1007) be shaped, so that described at least one second iron core part (1005,1006,1007) cross over the part that is equipped with described winding (1001,1002) of described first iron core part (1004) and produce magnetic loop from first end of described first iron core part (1004) to second end of described first iron core part (1004).
2. lamp socket according to claim 1 is characterized in that, described iron core part (6004,6006,6007) U font ground is arranged.
3. lamp socket according to claim 1 is characterized in that, described iron core part (1004,1005,1006,1007) constitutes a framework, and described framework only interrupts by at least one gap (1008).
4. lamp socket according to claim 1 is characterized in that described iron core part is constructed to nickel-zinc-ferrite.
5. lamp socket according to claim 1 is characterized in that, arranges that at least one gap (1008) relative permeability is than the ferromagnetic material of described iron core part (1004,1005,1006,1007) or the low material of relative permeability of ferrimagnetic material.
6. lamp socket according to claim 5 is characterized in that, the material that relative permeability is lower is the adhesive (1008) that is used for connecting at least two iron core parts (1004,1005,1006,1007).
7. lamp socket according to claim 5 is characterized in that, described at least one gap is constructed to air gap (2009).
8. lamp socket according to claim 3 is characterized in that, described at least one gap (1008,2009) has the width that is less than or equal to 4mm.
9. lamp socket according to claim 1, it is characterized in that, the secondary winding (1002) of described ignition transformer (100) and elementary winding (1001) arranged superposed, wherein, described secondary winding (1002) is positioned at inner and described elementary winding (1001) is positioned at externally and arranges.
10. lamp socket according to claim 1 is characterized in that described secondary winding has the D.C. resistance that is less than or equal to 1 ohm.
11. lamp socket according to claim 1 is characterized in that, described at least one second iron core part (8005-8007; 9005) be disposed in the cavity (20 ' of this lamp socket; In 20 ").
12. lamp socket according to claim 11 is characterized in that, described cavity is disposed in one or more wall of this lamp socket, and described wall is determined the (boundary line of 20 "), chamber of first iron core part (9004) of described ignition transformer (9000).
13. lamp socket according to claim 1 is characterized in that, described lamp socket has the device (8010,8011) that is used for described at least one second iron core part (8005) of clamping.
14. lamp socket according to claim 1, it is characterized in that, described ignition transformer has the bobbin (5003) of the cylindrical part that surrounds described first iron core part (5004), at least one (5001) in the winding of the last described ignition transformer of layout of described bobbin (5003) (5000), wherein, described bobbin (5003) is equipped with the device (5010) that is used for described at least one second iron core part (5005) of clamping.
15. lamp socket according to claim 1 is characterized in that, described ignition transformer has housing, arranges described at least first iron core part in described housing, and wherein, described housing is equipped with the device that is used for described at least one second iron core part of clamping.
16., it is characterized in that the described device (5010) that is used for described at least one second iron core part (5005) of clamping comprises wink actuation mechanism or blocking mechanism according to claim 13,14 or 15 described lamp sockets.
17. according to one in the claim 1 to 10 or multinomial described lamp socket, it is characterized in that, in the inner space of described lamp socket, arrange gap (62) or threshold element, described gap (62) or described threshold element are constructed to the part of pulse ignition device, wherein, in the scope of 1500V, and the turn ratio of the secondary winding (1002) of described ignition transformer (1000) and elementary winding (1001) is in 10 to 80 scope at 400V for the puncture voltage of described gap (62) or described threshold element.
18. a high-pressure discharge lamp, it has according to one in the aforesaid right requirement or multinomial described lamp socket.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005008301.3 | 2005-02-11 | ||
| DE102005008301 | 2005-02-11 | ||
| DE102005029001.9 | 2005-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101116378A true CN101116378A (en) | 2008-01-30 |
Family
ID=39023526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200680004641 Pending CN101116378A (en) | 2005-02-11 | 2006-02-06 | Lamp base for a high-pressure discharge lamp and corresponding high-pressure discharge lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101116378A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240920A (en) * | 2014-09-15 | 2014-12-24 | 广东美的厨房电器制造有限公司 | Transformer |
| CN106796836A (en) * | 2014-07-23 | 2017-05-31 | 胜美达集团有限公司 | High voltage miniature transformer with U-shaped core |
-
2006
- 2006-02-06 CN CN 200680004641 patent/CN101116378A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106796836A (en) * | 2014-07-23 | 2017-05-31 | 胜美达集团有限公司 | High voltage miniature transformer with U-shaped core |
| CN104240920A (en) * | 2014-09-15 | 2014-12-24 | 广东美的厨房电器制造有限公司 | Transformer |
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Open date: 20080130 |