WO1993014508A1 - Transformateur monte sur vehicule - Google Patents

Transformateur monte sur vehicule Download PDF

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Publication number
WO1993014508A1
WO1993014508A1 PCT/JP1992/000557 JP9200557W WO9314508A1 WO 1993014508 A1 WO1993014508 A1 WO 1993014508A1 JP 9200557 W JP9200557 W JP 9200557W WO 9314508 A1 WO9314508 A1 WO 9314508A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic
insulator
iron core
transformer
magnetic body
Prior art date
Application number
PCT/JP1992/000557
Other languages
English (en)
Japanese (ja)
Inventor
Katsumi Konii
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to KR1019920702731A priority Critical patent/KR970000106B1/ko
Priority to TW081103441A priority patent/TW256923B/zh
Publication of WO1993014508A1 publication Critical patent/WO1993014508A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/08—High-leakage transformers or inductances

Definitions

  • the present invention relates to a transformer mounted on a vehicle, and is used particularly in a vehicle driving electric system, Itoda, which performs power and regenerative control by a power converter such as a pulse width modulation control converter. It relates to transformers for vehicles.
  • a power converter such as a pulse width modulation control converter.
  • FIG. 9 shows an example of a conventional shell-type vehicle mounted transformer 4 described in Japanese Patent Application Laid-Open Nos. 11-313311 and 2-184007.
  • the on-vehicle transformer 4 is arranged in a magnetic induction relationship with a core 5 of a shell type, an input winding 6 wound on the core 5, and the core 5 and the input winding 6.
  • the on-vehicle transformer 4 is further provided between the input-side winding 6 and the output-side winding 7, and includes a plurality of magnetic elements 1 arranged via a gap in a space surrounded by the iron core 5.
  • a magnetic body assembly 17 having an insulator 14 that insulates and supports .7. Since the magnetic element 13 is insulated and supported by a gap formed by the insulator 14, the magnetic element 13 as a whole constitutes a magnetic body with a gap.
  • FIG. 10 is a circuit diagram partially showing a vehicle driving electric system using the vehicle-mounted transformer 4 of FIG. 9 in a block diagram.
  • the electric power is obtained from the trolley line 1 by the phantom graph 2, and the input side winding wound around the core 5 of the transformer 4 mounted on the vehicle via the circuit breaker 3. Supplied to line 6.
  • the four output windings 7 of the on-vehicle transformer 4 are associated with the magnetic body 13 and are each directly connected to the input of a pulse width modulation (PWM) converter 9.
  • PWM pulse width modulation
  • the output of the PWM converter 9 is connected via a capacitor 10 to the input of the VVVF inverter 11.
  • the output of the VVVF inverter 11 is connected to a three-phase induction motor 12 that drives the wheels of an electric car.
  • the leakage magnetic flux generated during the load operation of the on-vehicle transformer 4 increases due to the provision of the magnetic body assembly 17 which is a magnetic body having a gap, and as a result, the leakage impedance increases.
  • the conventional on-vehicle transformer having such a configuration is capable of obtaining a necessary reactive voltage while having a lightweight and compact configuration. It is excellent.
  • the output side winding 7 is divided into two windings due to load control and other factors. Despite the fact that loose coupling is required, it has conventionally been difficult to realize a winding arrangement that satisfies this requirement for loose coupling between output windings.
  • the multi-phase PWM converter control that is, the control in which the output windings of the transformer are controlled in different phases, respectively.
  • the circuit system to which the member unit is connected is adopted.
  • the output winding of the transformer is divided into four parts, each of which is connected to a converter tunable, and each of which has a different phase. Gate control is performed.
  • the magnetic coupling between the output windings of the transformer used for the PWM converter control is poor, that is, the transformer is subject to the load condition of a certain output winding. Loosely coupled characteristics are required so that other output windings do not receive magnetic interference. .
  • an object of the present invention is to provide a vehicle-mounted transformer capable of stably obtaining the magnetically loosely coupled characteristics between the output-side windings.
  • a vehicle-mounted transformer includes a core having an outer core shape, an input-side winding wound on the iron core, and a magnetic induction relationship with the input-side winding wound on the iron core.
  • a plurality of output-side windings arranged in a space, and a magnetic material with no air gap provided in a space surrounded by an iron core, which is provided between adjacent output-side windings among the output-side windings
  • a loosely coupled magnetic body assembly having the following.
  • it may be provided between the input winding and the output winding. It is also possible to provide a reactor magnet assembly with a void.
  • the required stable mutual coupling between the output-side windings can be obtained by the gapless magnetic material inserted between the output-side windings.
  • FIG. 1 is a schematic side sectional view showing a vehicle-mounted transformer according to one embodiment of the present invention
  • FIG. 2 is a front cross-sectional view of the vehicle-mounted transformer along the line I I-I I of FIG. 1,
  • FIG. 3 is a perspective view showing a reactor magnetic body assembly of the transformer mounted on a vehicle in FIG. 1,
  • Fig. 4 is a front cross-sectional view of the on-vehicle transformer along the line I I I-I I I in Fig. 1,
  • FIG. 5 is a perspective view showing a three-dimensionally loosely coupled magnetic body assembly of the transformer mounted on a vehicle in FIG. 1,
  • FIG. 6 is a schematic diagram of a vehicle driving electric system using the on-vehicle transformer shown in FIGS. 1 to 5
  • FIG. 7 is a vector diagram showing the phase relationship of the vehicle mounted transformer of the present invention.
  • FIG. 8 is a schematic side sectional view showing a vehicle mounted transformer according to another embodiment of the present invention.
  • Fig. 9 is a schematic cross-sectional side view showing a conventional on-vehicle transformer.
  • FIG. 10 is a schematic diagram of a vehicle driving electric system using the conventional vehicle transformer shown in FIG. Example
  • FIG. 1 is a schematic diagram showing an embodiment of a shell-type vehicle-mounted transformer of the present invention.
  • the overall configuration of the iron core 5 and windings 6 and 7 of the vehicle mounted transformer 4A of the present invention is the same as the conventional vehicle mounted transformer 4 shown in FIG. . That is, the iron core 5 is composed of the main iron core 5 a having a width of 2 W, the iron core leg 5 having a width W arranged parallel to both sides of the main iron core 5 a, and the main iron core 5 a and the iron core leg 5 b. And a yoke 5 c having a width W.
  • the input core windings 6a and 6b are wound around the main core 5a in a space 5d surrounded by the core 5, and the input windings 6a and 6b are in the axial direction of the winding. And are connected in parallel.
  • Main iron core 5'a also has four output windings 7a to 7d wound inside a space 5d surrounded by the iron core 5, and the output windings 7a and 7b are The output windings 7 c and 7 d are arranged on both sides of the input winding 6 b so as to sandwich it in the axial direction. Are located.
  • the vehicle transformer 4A includes a reactor magnet assembly 17 provided in an axial space between the input side windings 6a and 6b and the output side windings 7a to 7d. Have. Further, a loosely coupled magnetic body assembly 18 provided in an axial space between the adjacent output side windings 7b and 7c is provided.
  • the reactor magnetic body assembly 17 has a substantially rectangular hole 1 ⁇ for receiving the main iron core 5 a of the iron core 5. and a substantially rectangular insulator 14 having appropriate rigidity and a magnetic material 13 with a gap in a space 5 d embedded in the insulator 14 and surrounded by the iron core 5. It comprises a plurality of magnetic elements 13 b arranged in parallel via a gap 13 a so as to constitute.
  • Each magnetic element 13b is a laminate in which elongated rectangular magnetic plates are stacked in the same direction as the direction in which rectangular plate-shaped coils are stacked (arrow A in Fig. 1). conductor Are arranged in parallel with the extending direction (arrow B in FIG. 2).
  • the insulator 14 is composed of two insulating plates 14b and 1b, which sandwich the magnetic element 13b and fix and support it with insulating pins 14a. 4 Insulators 14 d that fill the spaces at both ends of the space between the insulating plates 14 b and 14 c that are not occupied by the magnetic elements 13 b, and the magnetic elements An insulator 14 e that is inserted between 13 b and forms an air gap 13 a is provided, and the magnetic elements 13 b arranged as a whole through the air gap are connected to each other and the iron core 5. Insulation support for windings 6 and 7.
  • the loosely coupled magnetic body assembly 18 has a substantially rectangular hole 18a for receiving the main iron core 5a of the iron core 5 in the center, as shown in detail in FIGS.
  • a substantially rectangular insulator having appropriate rigidity and a void-free magnetic material embedded in the insulator 16 and placed in a space 5 d surrounded by the iron core 5 1 and 5.
  • the magnetic material without voids 15 is arranged in a direction perpendicular to the direction of extension of the coil conductor (arrow B), and is separated from each other in the direction of extension of the coil conductor by insulators 16e (see the figure). 4 in case of example) Magnetic element 15b.
  • Each magnetic element 15b is also separated from the magnetic element by an insulator 16e such as a glass epoxy similarly to the magnetic element 13b of the reactor magnetic assembly 17 as well. However, this is to minimize the eddy current loss generated in the magnetic body 15 due to the leakage magnetic flux that penetrates perpendicularly to the surface of the magnetic body 15, and the direction of the separation However, magnetically, it is considered to be a magnetic material without voids.
  • Each magnetic element 15b is a laminate in which rectangular magnetic plates are stacked in the same direction as the direction in which rectangular plate-shaped coils are stacked (arrow A).
  • the insulator 16 is made up of two insulating plates 16 b and 2 b that sandwich the magnetic element 15 b and fix and support it with insulating pins 16 a. 16c and insulators 16d that fill the spaces at both ends that are not occupied by the magnetic element 15b in the space between the insulating plates 16b and 16c. And an insulator 16 e inserted between the magnetic elements 15 b, and insulates and supports the magnetic substance 15 as a whole with respect to the iron core 5 and the windings 6 and 7.
  • the insulating pins 16a are inserted into holes formed in the magnetic element 15b and the insulating plates 16b and 16c.
  • the loosely-coupled magnetic body assembly 18 assembled in this manner is integrated by varnish impregnation.
  • the outer shape of the insulator 16 of the loosely coupled magnetic body assembly 18 is the same as that of the insulator 14 of the reactor magnetic body assembly 17, and the loosely coupled and reactor magnetic body Assemblies 17 and 18 are stacked between the windings 6 and 7 to form a coil group, which is supported by the iron core 5. Therefore, when the coil group is manufactured, it can be handled and stacked in the same way as the coil, and in the assembly process of the main core and the assembly process of the coil group, the same transformer as used in the past is used. Easy assembly using the container assembly method.
  • the reactor magnetic body assembly 17 configured as described above is provided between the output side winding 7a and the input side winding 6a, and the input side winding 6a. It is supported between the output winding 7b, between the output winding 7c and the input winding 6b, and between the input winding 6b and the output winding 7d. ing. Since the magnetic element 13b of each assembly 17 is embedded and supported in the rigid insulating plate 14, it is insulated from the charged part and at the same time, the iron core 5 and the windings 6 and And 7 mechanically support the iron core 5 at a predetermined position.
  • the loosely coupled magnetic body assembly 18 is supported by being sandwiched between the output side winding 7b and the adjacent output side winding 7c.
  • the magnetic body 15 of the loosely coupled magnetic body assembly 18 is also electrically insulated by the rigid insulator 16, and at the same time, at a predetermined position in the iron core 5 by the core 5 and the windings 6 and 7. Mechanically supported by
  • FIG. 6 is a circuit diagram partially showing a vehicle driving electric system using the on-vehicle transformer of the present invention shown in FIGS. 1 to 5 in a block diagram.
  • the electric power is obtained from the trolley line 1 by the phantom graph 2, and is input through the circuit breaker 3 to the core 5 of the transformer 4A mounted on the vehicle. Supplied to side winding 6.
  • the four output windings 7a to 7d of the on-vehicle transformer 4A are associated with the first and second magnetic assemblies 17 and 18 and also have direct pulse width modulation respectively.
  • PWM Connected to the input of converter 9.
  • the output of the PWM connector 9 is connected to the input of the VVVF inverter 11 via the capacitor 10.
  • the output of the V V V F inverter 11 is connected to a three-phase induction motor 12 that drives the wheels of an electric car.
  • the trolley line 1 to the pan The voltage received via the tag 2 and the circuit breaker 3 is input to the input winding 6 of the on-vehicle transformer 4 A, transformed and output, and the output winding 7 of the on-vehicle transformer 4 A is turned on. Is output to The output of the output side winding 7 is supplied to a PWM converter 9 through an AC reactor 8, where the single-phase AC is converted to DC. This DC is smoothed by a capacitor 10 and then fed to a VVVF inverter 11 where the DC is converted to a three-phase AC.
  • the three-phase alternating current drives the three-phase induction motor 12 to drive the wheels (not shown) of the vehicle.
  • the leakage magnetic flux generated during the load operation of the on-vehicle transformer 4 A is increased by the reactor magnetic body assembly 17 which is a magnetic body having an air gap, and as a result, the leakage impedance is increased.
  • the reactor magnetic body assembly 17 which is a magnetic body having an air gap, and as a result, the leakage impedance is increased.
  • Dance increases.
  • the required reactive voltage V By appropriately selecting the number and dimensions of the magnetic elements 13 b and the air gaps 13 a of the reactor magnetic body assembly 17, the required reactive voltage V,.
  • a leakage impedance Z ⁇ ⁇ ⁇ that can be obtained is obtained.
  • the vector sum of the reactive voltage V and the converter voltage Vc generated at the time of running is the input voltage V of the vehicle-mounted transformer 4 4.
  • the loosely coupled magnetic body assembly 18 which is an iron core and has no air gap disposed between the output side windings 7 b and 7 c, so that these output side windings 7 b and 7 c Since c is magnetically shielded, loose coupling suitable for pulse width modulation control can be realized.
  • Fig. 8 shows a transformer 4C for mounting on a vehicle according to still another embodiment of the present invention having six output side windings 37a to 37f and two loosely coupled magnetic body assemblies 18 provided. Is shown. As described above, in the embodiment shown in FIGS. 1 to 5, the output side winding is divided into four, but in the present invention, the output side winding is divided into four or more. It can be applied to the case in the same way and has the same excellent effect. The invention's effect
  • the magnetic material inserted between the adjacent output-side windings and supported by the insulator is provided.
  • the magnetically-coupling characteristics between the output windings required for controlling the pulse width modulation converter can be stably obtained electrically and mechanically.
  • reactor magnetic body assembly having a plurality of magnetic elements arranged between the input side winding and the output side winding and arranged with a gap in a space surrounded by the iron core.
  • Each of the loosely-coupled magnetic body assembly and the reactive magnetic body assembly has a substantially rectangular center hole for receiving an iron core, and is made of a plate-like insulator that embeds the magnetic body and supports it insulated. Supported. Therefore, these magnetic assemblies can be stacked together with the coil to form a coil group in the same manner as in the conventional assembly work, and the transformer assembling work can be performed without changing the equipment. You can do the same.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Insulating Of Coils (AREA)

Abstract

L'invention se rapporte à transformateur monté sur véhicule, qui est de petite taille et de poids faible et dans lequel on peut obtenir les tensions réactives nécessaires ainsi qu'une caractéristique stable de couplage lâche parmi ses enroulements côté sortie. Ce transformateur (4) est pourvu d'un noyau de fer du type à enveloppe (5), d'enroulements côté entrée et côté sortie (6, 7) enroulés autour du noyau de fer (5) et placés en relation d'induction magnétique, des ensembles de corps magnétiques (17) avec des entrefer entre les enroulements d'entrée et de sortie, et d'un autre ensemble de corps magnétiques (18) disposé entre les enroulements de sortie (7), pour que ceux-ci puissent être couplés entre eux de façon lâche selon une relation de magnétisme. Le second ensemble de corps magnétiques (18) est disposé dans un espace (5d) entouré par le noyau de fer (5) et se compose d'un corps magnétique (15) sans entrefer et d'une plaque isolante (16) soutenant le corps magnétique (15) et isolant celui-ci du noyau de fer et des enroulements.
PCT/JP1992/000557 1992-01-17 1992-04-28 Transformateur monte sur vehicule WO1993014508A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019920702731A KR970000106B1 (ko) 1992-01-17 1992-04-28 차량탑재용 변압기
TW081103441A TW256923B (fr) 1992-04-28 1992-04-30

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4/6410 1992-01-17
JP641092 1992-01-17

Publications (1)

Publication Number Publication Date
WO1993014508A1 true WO1993014508A1 (fr) 1993-07-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/000557 WO1993014508A1 (fr) 1992-01-17 1992-04-28 Transformateur monte sur vehicule

Country Status (4)

Country Link
EP (1) EP0551555B1 (fr)
KR (1) KR970000106B1 (fr)
DE (1) DE69212794T2 (fr)
WO (1) WO1993014508A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4523076B1 (ja) * 2009-02-13 2010-08-11 三菱電機株式会社 変圧器
JP2011139039A (ja) * 2009-12-04 2011-07-14 Mitsubishi Electric Corp 変圧装置
US8648684B2 (en) 2009-12-04 2014-02-11 Mitsubishi Electric Corporation Voltage transforming apparatus
JP2016129174A (ja) * 2015-01-09 2016-07-14 レシップホールディングス株式会社 変圧器
CN110062715A (zh) * 2019-01-11 2019-07-26 广东美信科技股份有限公司 一种新能源汽车用车载变压器及新能源汽车

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467047B1 (ko) * 2002-09-17 2005-01-24 전력품질기술주식회사 자기 차폐 공심 리액터
JP5217061B2 (ja) * 2008-03-04 2013-06-19 三菱電機株式会社 変圧装置
WO2013061220A1 (fr) 2011-10-25 2013-05-02 Brusa Elektronik Ag Composant inductif et utilisation
FR3089676A1 (fr) * 2018-12-07 2020-06-12 Commissariat A L'energie Atomique Et Aux Energies Alternatives Dispositif d’induction electromagnetique
IL296858A (en) * 2020-03-30 2022-11-01 Choi Woo Hee A direct current generator of the non-rotating type
SE545081C2 (en) * 2021-06-18 2023-03-21 Saab Ab A weight reducing transformer arrangement comprising a shell and a core with three orthogonal axes
CN115863015B (zh) * 2023-02-21 2023-04-25 深圳市斯比特技术股份有限公司 一种多线圈连绕电感

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215030B2 (fr) * 1979-10-24 1987-04-06 Hitachi Ltd
JPH02184007A (ja) * 1989-01-10 1990-07-18 Mitsubishi Electric Corp 車両用変圧器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0779064B2 (ja) * 1987-11-19 1995-08-23 三菱電機株式会社 車両用変圧器
JPH0682582B2 (ja) * 1989-07-06 1994-10-19 三菱電機株式会社 分路リアクトル共有形変圧器

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6215030B2 (fr) * 1979-10-24 1987-04-06 Hitachi Ltd
JPH02184007A (ja) * 1989-01-10 1990-07-18 Mitsubishi Electric Corp 車両用変圧器

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4523076B1 (ja) * 2009-02-13 2010-08-11 三菱電機株式会社 変圧器
WO2010092676A1 (fr) * 2009-02-13 2010-08-19 三菱電機株式会社 Transformateur
KR101195283B1 (ko) 2009-02-13 2012-10-29 미쓰비시덴키 가부시키가이샤 변압기
US8421571B2 (en) 2009-02-13 2013-04-16 Mitsubishi Electric Corporation Transformer
JP2011139039A (ja) * 2009-12-04 2011-07-14 Mitsubishi Electric Corp 変圧装置
US8648684B2 (en) 2009-12-04 2014-02-11 Mitsubishi Electric Corporation Voltage transforming apparatus
JP2016129174A (ja) * 2015-01-09 2016-07-14 レシップホールディングス株式会社 変圧器
CN110062715A (zh) * 2019-01-11 2019-07-26 广东美信科技股份有限公司 一种新能源汽车用车载变压器及新能源汽车

Also Published As

Publication number Publication date
KR930703692A (ko) 1993-11-30
DE69212794T2 (de) 1997-02-20
KR970000106B1 (ko) 1997-01-04
EP0551555B1 (fr) 1996-08-14
DE69212794D1 (de) 1996-09-19
EP0551555A1 (fr) 1993-07-21

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