CN108962549A - Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer - Google Patents

Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer Download PDF

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Publication number
CN108962549A
CN108962549A CN201810678299.4A CN201810678299A CN108962549A CN 108962549 A CN108962549 A CN 108962549A CN 201810678299 A CN201810678299 A CN 201810678299A CN 108962549 A CN108962549 A CN 108962549A
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CN
China
Prior art keywords
winding
primary
stay
vice
phase
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Pending
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CN201810678299.4A
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Chinese (zh)
Inventor
刘艳
邓小池
周杰
饶勇
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Suzhou Inovance Technology Co Ltd
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Suzhou Inovance Technology Co Ltd
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Priority to CN201810678299.4A priority Critical patent/CN108962549A/en
Publication of CN108962549A publication Critical patent/CN108962549A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/2876Cooling
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/08Cooling; Ventilating
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/30Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
    • H01F27/306Fastening or mounting coils or windings on core, casing or other support
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/322Insulating of coils, windings, or parts thereof the insulation forming channels for circulation of the fluid
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00Details of transformers or inductances, in general
    • H01F27/28Coils; Windings; Conductive connections
    • H01F27/32Insulating of coils, windings, or parts thereof
    • H01F27/324Insulation between coil and core, between different winding sections, around the coil; Other insulation structures
    • H01F27/325Coil bobbins

Abstract

The present invention provides a kind of phase-shifting rectifier transformer and power unit cascade type high voltage frequency changers, the phase-shifting rectifier transformer includes iron core, first sleeve, primary side winding and vice-side winding, and the first sleeve is placed on outside iron core, the primary side winding is wound around the outside of the first sleeve, the vice-side winding is wound around on the outside of the primary side winding;Insulation withstanding voltage between the primary side winding and the iron core is greater than the insulation withstanding voltage between the primary side winding and the vice-side winding.The present invention can be improved the power density of phase-shifting rectifier transformer, reduce the dosage of raw material, reduce cost by reducing the insulation withstanding voltage between primary side winding and vice-side winding.

Description

Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer
Technical field
The present invention relates to frequency converter fields, more specifically to a kind of phase-shifting rectifier transformer and power unit cascade Type high-voltage frequency converter.
Background technique
High pressure with the development of the development of electric drive technology, especially variable-frequency control technique, as large capacity transmission Variable-frequency control technique is also widely used.Stepless speed regulation may be implemented using high-voltage frequency converter in high-voltage motor, meets life The requirement that production. art process controls electric machine speed regulation while improving the yield and quality of product, and can significantly save energy Source reduces production cost.Currently, high-voltage high-power frequency transformator be widely used in large-scale mining industry factory, petrochemical industry, The various blowers of the industries such as municipal water supply, iron and steel metallurgy, electric power energy, water pump, compressor, rolling mill etc..
Phase-shifting rectifier transformer is the important component of high-voltage frequency converter.Phase shift used in existing high-voltage frequency converter Insulation mode between the primary side winding and vice-side winding of rectifier transformer and the insulation mode phase between primary side winding and iron core Together, i.e., using including primary side winding, the structure of vice-side winding outside, insulating sleeve is used between primary side winding and vice-side winding Air distance is cooperated to realize insulation.
In above-mentioned phase-shifting rectifier transformer, since primary side winding and vice-side winding are divided into two parts by sleeve, so that The complicated integral structure of phase-shifting rectifier transformer, and the air duct for heat dissipation mainly relies on hanging down for phase-shifting rectifier transformer itself Matched design is carried out in straight wind-guiding direction, and heat-sinking capability is limited, cannot well take the heat inside phase-shifting rectifier transformer out of. For this purpose, above-mentioned phase-shifting rectifier transformer needs to avoid phase-shifting rectifier transformer there are biggish surplus when electromagnetic parameter designs The temperature rise of winding and iron core is excessively high, causes materials'use efficiency not high.
Summary of the invention
The technical problem to be solved in the present invention is that for above-mentioned phase-shifting rectifier transformer, structure is complicated, materials'use rate Not high problem provides a kind of phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer.
The technical solution that the present invention solves above-mentioned technical problem is to provide a kind of phase-shifting rectifier transformer, including iron core, the One sleeve, primary side winding and vice-side winding, and the first sleeve is placed on that iron core is outer, the primary side winding is wound around described the The outside of one sleeve, the vice-side winding are wound around on the outside of the primary side winding;Between the primary side winding and the iron core The withstanding voltage that insulate is greater than the insulation withstanding voltage between the primary side winding and the vice-side winding.
In phase-shifting rectifier transformer of the present invention, pass through first between the primary side winding and the vice-side winding Air gap is separated by.
In phase-shifting rectifier transformer of the present invention, the width of first air gap is less than default width of air gap;
Wherein, the default width of air gap is to pass through second sleeve between the primary side winding and the vice-side winding Interval, and the insulation withstanding voltage between the primary side winding and the vice-side winding is equal to the primary side winding and the iron core Between insulation withstanding voltage when, the width of air gap between the primary side winding and the vice-side winding.
In phase-shifting rectifier transformer of the present invention, pass through second between the primary side winding and the vice-side winding Air gap is separated by with second sleeve, and the width of the interstice is less than default width of air gap;
Wherein, the default width of air gap is to pass through second sleeve between the primary side winding and the vice-side winding Interval, and the insulation withstanding voltage between the primary side winding and the vice-side winding is equal to the primary side winding and the iron core Between insulation withstanding voltage when, the width of air gap between the primary side winding and the vice-side winding.
In phase-shifting rectifier transformer of the present invention, the phase-shifting rectifier transformer further includes auxiliary winding, described Auxiliary winding is wound around the outside of the vice-side winding, and the insulation between the vice-side winding and the auxiliary winding is resistant to electricity Pressure is greater than the insulation withstanding voltage between the primary side winding and the vice-side winding.
In phase-shifting rectifier transformer of the present invention, the phase-shifting rectifier transformer further includes around the first set The multiple coil stays and multiple strips of cylinder setting;The primary side winding and vice-side winding are wound around the coil stay respectively On, the multiple strip is arranged along the axial direction of the iron core, and the multiple strip is located at the primary side winding and secondary side Between winding.
In phase-shifting rectifier transformer of the present invention, each coil stay includes girder and multiple stays Tooth, the multiple stay tooth are respectively perpendicular the first side for being connected to the girder, and second side of the girder is towards described One sleeve;On each strip have multiple bayonets, and multiple bayonets of each strip connect and fix respectively it is same Multiple stay teeth of coil stay;The primary side winding is wound around between the girder and strip, and the vice-side winding is wound around On the outside of the strip.
In phase-shifting rectifier transformer of the present invention, the phase-shifting rectifier transformer further includes around the first set Multiple first stays and multiple second stays of cylinder setting, second stay are located at the outside of first stay;It is described Primary side winding is wound around on first stay, and the vice-side winding is wound around on second stay.
In phase-shifting rectifier transformer of the present invention, each first stay includes the first girder, multiple first Stay tooth and at least one second stay tooth, the first stay tooth and the second stay tooth are respectively perpendicular and are connected to described first First side of girder, and the length of the second stay tooth is greater than the length of the first stay tooth;Each second stay Including the second girder and multiple third stay teeth, the third stay tooth is vertically connected on the first side of second girder, And second side of second girder has at least one card slot;Second side of first girder towards the first sleeve, And second stay is installed in such a way that the second stay tooth of the card slot of the second girder and first stay is engaged by clamping First stay.
The present invention also provides a kind of power unit cascade type high voltage frequency changers, including phase-shifting commutation transformation as described above Device.
Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer of the invention, by by primary side winding and secondary side Insulation withstanding voltage between winding reduces, and the power density of phase-shifting rectifier transformer can be improved, reduce the dosage of raw material, drops Low cost.The present invention, which also passes through, changes phase-shifting rectifier transformer winding construction, can increase the heat dissipation area of primary side winding, thus into The power density of one step raising phase-shifting rectifier transformer.
Detailed description of the invention
Fig. 1 is the schematic diagram of phase-shifting rectifier transformer embodiment of the present invention;
Fig. 2 is the schematic diagram of phase-shifting rectifier transformer primary side winding and vice-side winding constructive embodiment of the present invention;
Fig. 3 is the schematic diagram of another embodiment of phase-shifting rectifier transformer primary side winding and vice-side winding structure of the present invention;
Fig. 4 is the radiator structure schematic diagram of phase-shifting rectifier transformer embodiment of the present invention;
Fig. 5 is the schematic diagram of another embodiment of phase-shifting rectifier transformer of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.
As shown in Figure 1, being the schematic diagram of phase-shifting rectifier transformer embodiment of the present invention, which can be applied Multiple low-voltage ACs are converted in high-voltage high-power frequency transformator, and by the High Level AC Voltage of input.Phase shift in the present embodiment Rectifier transformer includes iron core 11, first sleeve (being made of insulating material), primary side winding 12 and vice-side winding 13, and above-mentioned One sleeve is placed on outside iron core 11, primary side winding 12 is wound around the outside of first sleeve, vice-side winding 13 is wound around primary side winding 12 Outside;And the insulation withstanding voltage between primary side winding 12 and iron core 11 is greater than between primary side winding 12 and vice-side winding 13 Insulation withstanding voltage.
With insulation withstanding voltage, primary side winding and the secondary side in existing phase-shifting rectifier transformer between primary side winding and iron core The equal scheme of insulation withstanding voltage between winding is different, and above-mentioned phase-shifting rectifier transformer breaks conventional structure, by primary side around Group reduces the insulation withstanding voltage of vice-side winding, improves insulation withstanding voltage of the primary side winding to iron core, can simplify phase shift The structure of rectifier transformer.
As shown in Fig. 2, can cancel since the insulation withstanding voltage between primary side winding 12 and vice-side winding 13 reduces Insulating sleeve (i.e. second sleeve) between primary side winding 12 and vice-side winding 13, i.e., between primary side winding 12 and vice-side winding 13 Directly it is separated by by the first air gap.
Such as in conventional phase-shifting rectifier transformer product, voltage rating is that the former of the phase-shifting rectifier transformer of 10kV becomes Insulation withstanding voltage between winding and vice-side winding requires to be 28kV, to meet above-mentioned requirements, primary side winding and vice-side winding Between insulation distance about 35mm, insulating sleeve thickness about 3mm, vice-side winding to iron core without lightning impulse requirement;Using this reality After the structure for applying example, for the phase-shifting rectifier transformer product of 10kV, the insulation that original becomes between winding 12 and vice-side winding 13 is resistance to It can be reduced to 18kV by voltage, so as to while cancelling insulating sleeve, make former become between winding 12 and vice-side winding 13 Insulation distance remains about 35mm.
Similarly, use the voltage rating of existing structure for the phase-shifting rectifier transformer product of 6kV, primary side winding and secondary side Insulation withstanding voltage between winding requires to be 20kV, and to meet above-mentioned requirements, original becomes the insulation between winding and vice-side winding Distance about 25mm, insulating sleeve thickness about 3mm;The voltage rating of the structure of the present embodiment is used to produce for the phase-shifting transformer of 6kV Product, the insulation withstanding voltage between primary side winding and vice-side winding require that 15kV can be reduced to, so as to cancel insulating sleeve Meanwhile the insulation distance of primary side winding and vice-side winding being made to remain as about 25mm.
Specifically, the first air gap between above-mentioned primary side winding 12 and vice-side winding 13 may be accomplished by: move Commutating phase transformer further includes multiple coil stays 15 and multiple strips 16, and plurality of coil stay 15 is around first sleeve Setting, primary side winding 12 and vice-side winding 13 are wound around on coil stay 15 that (vice-side winding 13 is wound around primary side winding 12 respectively Outside), multiple strips 16 are along the radially uniform distribution of iron core 11, and multiple strip 16 is located at primary side winding 12 and pair Between side winding 13.
Particularly, above-mentioned each coil stay 15 includes girder 151 and multiple stay teeth 152, and multiple stay teeth 152 divide It is not vertically connected on the first side of girder 151, and second side of girder 151 (such as can be affixed on first set towards first sleeve 14 On cylinder 14).There are multiple bayonets, and multiple bayonets of each strip 16 connect and fix same coil respectively on each strip 16 Multiple stay teeth 152 of stay 15.Primary side winding 12 is wound around between girder 151 and strip 16, and vice-side winding 13 is then wound around 16 outside of strip.Certainly, in practical applications, above-mentioned each strip 16 can be replaced (on each fixture block with multiple independent fixture blocks A bayonet is respectively set).
In addition, when primary side winding 12 and vice-side winding 13 around be set to same group of coil stay 15 when, by primary side winding 12 After being set to above-mentioned coil stay 15, strip 16 (no setting is required on strip 16 at this time bayonet) can also be directly adhesively fixed to original The outside of side winding 12, then again by vice-side winding 13 around being set to above-mentioned coil stay 15.
As shown in figure 3, the first air gap between above-mentioned primary side winding 12 and vice-side winding 13 can pass through multiple first stays 25 and multiple second stays 26 realize that above-mentioned multiple first stays 25 and multiple second stays 26 are set around first sleeve 14 respectively It sets, and the second stay 26 is located at the outside of the first stay 25.Primary side winding 12 is wound around on the first stay 25, and vice-side winding 13 is then It is wound around on second stay 26.
Specifically, above-mentioned first stay 25 include the first girder 251, multiple first stay teeth 252 and at least one the Two stay teeth 253, the first stay tooth 252 and the second stay tooth 253 are respectively perpendicular the first side for being connected to the first girder 251, and The length of second stay tooth 253 is greater than the length of the first stay tooth 252;Every one second stay 26 include the second girder 261 and Multiple third stay teeth 262, above-mentioned third stay tooth 262 are vertically connected on the first side of the second girder 261, and the second girder 261 second side has at least one card slot.Second side of above-mentioned first girder 251 is installed towards first sleeve 14 and is fixed, and Coiling primary side winding 12;After the completion of 12 coiling of primary side winding, the second stay 26 is with the card slot and the first stay of the second girder 261 The mode that 25 the second stay tooth 253 is engaged by clamping is installed to the first stay 25, then further around vice-side winding 13 processed.
As shown in figure 4, being the radiator structure schematic diagram of phase-shifting rectifier transformer embodiment of the present invention.Can by secondary side around Sleeve 4 is set outside group 13, and opposite air inlet 41 and air outlet 42 are set on sleeve 4, and above-mentioned air inlet 41 and outlet air Mouth 42 is axially arranged on sleeve 4 respectively, to form lateral air duct in sleeve 4 (i.e. perpendicular to the axial direction of iron core 11 Air duct).It, can be fast by the air that air inlet 41 flows into due to there is no insulating sleeve between primary side winding 12 and vice-side winding 13 The fast gap across the adjacent lines cake of primary side winding 12 and the gap between the adjacent lines cake of vice-side winding 13, and take away original The heat that side winding 12 and vice-side winding 13 distribute when working.
In the present invention, can also by way of reducing the first air gap between primary side winding 12 and vice-side winding 13 come into One step reduces the insulation withstanding voltage between primary side winding 12 and the vice-side winding 13, i.e., the width of above-mentioned first air gap is less than The width of default air gap.The width of above-mentioned default air gap is primary side winding and pair in the phase-shifting rectifier transformer of existing equivalent specifications The width of air gap between the winding of side passes through second that is, between the primary side winding of phase-shifting rectifier transformer 12 and vice-side winding 13 When sleeve and default air gap are separated by, insulation withstanding voltage between primary side winding 12 and vice-side winding 13 be equal to primary side winding 12 with Insulation withstanding voltage between iron core 11.
In addition, can also retain above-mentioned second other than cancelling the second sleeve between primary side winding 12 and vice-side winding 13 Sleeve, and by way of reducing the air gap between primary side winding 12 and vice-side winding 13 reduce primary side winding 12 and secondary side around Insulation withstanding voltage between group 13.Specifically, pass through interstice and second set between primary side winding 12 and vice-side winding 13 Cylinder is separated by, and the width of interstice is less than the width of default air gap.The width of above-mentioned default air gap is existing equivalent specifications The width of air gap in phase-shifting rectifier transformer between primary side winding and vice-side winding, i.e., in primary side winding 12 and vice-side winding 13 Between when being separated by by second sleeve and default air gap, the insulation withstanding voltage between primary side winding 12 and vice-side winding 13 is equal to Insulation withstanding voltage between primary side winding 12 and iron core 11.
As shown in figure 5, in another embodiment of phase-shifting rectifier transformer of the invention, in addition to including iron core 51, first Sleeve (being made of insulating material), primary side winding 52 and vice-side winding 53 are outer, and (above-mentioned first sleeve is placed on that iron core 51 is outer, primary side Winding 52 is wound around the outside of first sleeve, vice-side winding 53 is wound around the outside of primary side winding 52), it may also include auxiliary winding 54, which is wound around the outside of vice-side winding 53, and the insulation tolerance between vice-side winding 53 and auxiliary winding 54 Voltage is greater than the insulation withstanding voltage between primary side winding 52 and vice-side winding 53.Specifically, vice-side winding 53 and auxiliary winding Insulation withstanding voltage between 54 can by the air gap or vice-side winding 53 of vice-side winding 53 and auxiliary winding 54 and auxiliary around The air gap of group 54+sleeve is realized.
The present invention also provides a kind of power unit cascade type high voltage frequency changers, including phase-shifting commutation transformation as described above Device, the power unit cascade type high voltage frequency changer can be used for heavy-duty motor operation control.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art, It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with scope of protection of the claims Subject to.

Claims (10)

1. a kind of phase-shifting rectifier transformer, which is characterized in that including iron core, first sleeve, primary side winding and vice-side winding, and The first sleeve is placed on outside iron core, the primary side winding is wound around the outside of the first sleeve, the vice-side winding winding On the outside of the primary side winding;Insulation withstanding voltage between the primary side winding and the iron core be greater than the primary side winding with Insulation withstanding voltage between the vice-side winding.
2. phase-shifting rectifier transformer according to claim 1, which is characterized in that the primary side winding and the vice-side winding Between be separated by by the first air gap.
3. phase-shifting rectifier transformer according to claim 2, which is characterized in that the width of first air gap is less than default Width of air gap;
Wherein, the default width of air gap is to pass through second sleeve interval between the primary side winding and the vice-side winding, And the insulation withstanding voltage between the primary side winding and the vice-side winding is equal between the primary side winding and the iron core Insulation withstanding voltage when, the width of air gap between the primary side winding and the vice-side winding.
4. phase-shifting rectifier transformer according to claim 1, which is characterized in that the primary side winding and the vice-side winding Between be separated by by interstice and second sleeve, and the width of the interstice is less than default width of air gap;
Wherein, the default width of air gap is to pass through second sleeve interval between the primary side winding and the vice-side winding, And the insulation withstanding voltage between the primary side winding and the vice-side winding is equal between the primary side winding and the iron core Insulation withstanding voltage when, the width of air gap between the primary side winding and the vice-side winding.
5. phase-shifting rectifier transformer according to claim 1, which is characterized in that the phase-shifting rectifier transformer further includes auxiliary Winding is helped, the auxiliary winding is wound around the outside of the vice-side winding, and between the vice-side winding and the auxiliary winding Insulation withstanding voltage be greater than insulation withstanding voltage between the primary side winding and the vice-side winding.
6. phase-shifting rectifier transformer according to claim 2, which is characterized in that the phase-shifting rectifier transformer further includes ring Around the multiple coil stays and multiple strips of first sleeve setting;The primary side winding and vice-side winding are wound around respectively On the coil stay, the multiple strip is arranged along the axial direction of the iron core, and the multiple strip is located at the original Between side winding and vice-side winding.
7. phase-shifting rectifier transformer according to claim 6, which is characterized in that each coil stay include girder with And multiple stay teeth, the multiple stay tooth are respectively perpendicular the first side for being connected to the girder, and second side of the girder Towards the first sleeve;There are multiple bayonets, and multiple bayonets of each strip are clamped respectively on each strip Multiple stay teeth fixed to same coil stay;The primary side winding is wound around between the girder and strip, the pair side Winding is wound around on the outside of the strip.
8. phase-shifting rectifier transformer according to claim 2, which is characterized in that the phase-shifting rectifier transformer further includes ring Around multiple first stays and multiple second stays of first sleeve setting, second stay is located at first stay Outside;The primary side winding is wound around on first stay, and the vice-side winding is wound around on second stay.
9. phase-shifting rectifier transformer according to claim 8, which is characterized in that each first stay includes first main Beam, multiple first stay teeth and at least one second stay tooth, the first stay tooth and the second stay tooth are respectively perpendicular company It connects in the first side of first girder, and the length of the second stay tooth is greater than the length of the first stay tooth;It is each Second stay includes the second girder and multiple third stay teeth, and it is main that the third stay tooth is vertically connected on described second First side of beam, and second side of second girder has at least one card slot;Second side of first girder is towards institute First sleeve is stated, and second stay is with the clamping engagement of the second stay tooth of the card slot of the second girder and first stay Mode is installed to first stay.
10. a kind of power unit cascade type high voltage frequency changer, which is characterized in that including as described in any one of claim 1-9 Phase-shifting rectifier transformer.
CN201810678299.4A 2018-06-27 2018-06-27 Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer Pending CN108962549A (en)

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Application Number Priority Date Filing Date Title
CN201810678299.4A CN108962549A (en) 2018-06-27 2018-06-27 Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810678299.4A CN108962549A (en) 2018-06-27 2018-06-27 Phase-shifting rectifier transformer and power unit cascade type high voltage frequency changer

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CN108962549A true CN108962549A (en) 2018-12-07

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007221040A (en) * 2006-02-20 2007-08-30 Toyo Denso Co Ltd Ignition coil unit
CN201616329U (en) * 2009-12-18 2010-10-27 中电电气集团有限公司 Transformer body
CN202076099U (en) * 2011-06-23 2011-12-14 新华都特种电气股份有限公司 Integrative high/low-voltage combined winding for dry type transformer
CN103050227A (en) * 2012-12-20 2013-04-17 中国科学院电工研究所 High-frequency high-voltage transformer structure
CN203931712U (en) * 2014-06-06 2014-11-05 合肥雷科电子科技有限公司 High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer
CN204407159U (en) * 2014-12-31 2015-06-17 金盘电气集团(上海)有限公司 A kind of dry type phase-shifting rectifier transformer
CN105390248A (en) * 2015-11-05 2016-03-09 苏州腾冉电气设备股份有限公司 Phase-shifting transformer coil

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007221040A (en) * 2006-02-20 2007-08-30 Toyo Denso Co Ltd Ignition coil unit
CN201616329U (en) * 2009-12-18 2010-10-27 中电电气集团有限公司 Transformer body
CN202076099U (en) * 2011-06-23 2011-12-14 新华都特种电气股份有限公司 Integrative high/low-voltage combined winding for dry type transformer
CN103050227A (en) * 2012-12-20 2013-04-17 中国科学院电工研究所 High-frequency high-voltage transformer structure
CN203931712U (en) * 2014-06-06 2014-11-05 合肥雷科电子科技有限公司 High-power unsteady high pressure restructural composite type high-frequency and high-voltage rectifier transformer
CN204407159U (en) * 2014-12-31 2015-06-17 金盘电气集团(上海)有限公司 A kind of dry type phase-shifting rectifier transformer
CN105390248A (en) * 2015-11-05 2016-03-09 苏州腾冉电气设备股份有限公司 Phase-shifting transformer coil

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