WO2018047327A1 - 車両用変圧器 - Google Patents

車両用変圧器 Download PDF

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Publication number
WO2018047327A1
WO2018047327A1 PCT/JP2016/076776 JP2016076776W WO2018047327A1 WO 2018047327 A1 WO2018047327 A1 WO 2018047327A1 JP 2016076776 W JP2016076776 W JP 2016076776W WO 2018047327 A1 WO2018047327 A1 WO 2018047327A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle
transformer
cooling pipes
tank
cooling
Prior art date
Application number
PCT/JP2016/076776
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
加藤　直
孝基 新庄
賜基 速水
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to EP16915745.0A priority Critical patent/EP3511961B1/de
Priority to CN201680088882.9A priority patent/CN109643601A/zh
Priority to PCT/JP2016/076776 priority patent/WO2018047327A1/ja
Priority to CN202211197475.5A priority patent/CN115424825A/zh
Priority to JP2016574291A priority patent/JP6143983B1/ja
Publication of WO2018047327A1 publication Critical patent/WO2018047327A1/ja

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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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/10—Liquid cooling
    • H01F27/12—Oil cooling
    • H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
    • 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
    • H01F27/02—Casings
    • H01F27/025—Constructional details relating to cooling
    • 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
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • 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
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air

Definitions

  • the present invention relates to a transformer for a vehicle.
  • Patent Document 1 Japanese Patent No. 5805354 (Patent Document 1) is a prior document disclosing the configuration of a vehicle transformer.
  • the transformer main part and the cooler are arranged along with the direction of movement of vehicles on the roof of vehicles.
  • Patent Document 2 JP-A-2006-269694
  • the radiator is arranged above the main body container.
  • a conservator In a transformer in which insulating oil is circulated as a refrigerant, a conservator is usually disposed above the transformer body. Therefore, the transformer main body and the cooler are arranged side by side along the traveling direction of the vehicle.
  • the electric power device described in Patent Document 2 is configured to condense the refrigerant evaporated in the evaporator in the radiator, and is not configured to include a conservator.
  • the present invention has been made in view of the above-described problems, and an object of the present invention is to provide a vehicular transformer that can increase the cooling efficiency of the refrigerant by the traveling wind accompanying the traveling of the vehicle.
  • the vehicle transformer according to the present invention is a vehicle transformer mounted on the roof of a vehicle.
  • the vehicle transformer includes a tank, a plurality of cooling pipes, and a conservator.
  • the tank contains a transformer body and is filled with a refrigerant.
  • the plurality of cooling pipes are disposed above the tank and cool the refrigerant by heat exchange between the refrigerant and the outside air.
  • the conservator is disposed on the side of the tank so as to be aligned with the tank along the traveling direction of the vehicle, and communicates with the tank.
  • FIG. 1 It is a perspective view which shows the external appearance of the transformer for vehicles which concerns on Embodiment 1 of this invention. It is the top view which looked at the transformer for vehicles of Drawing 1 from the direction of arrow II. It is the front view which looked at the transformer for vehicles of Drawing 1 from arrow III. It is the left view which looked at the transformer for vehicles of Drawing 1 from arrow IV direction. It is the right view which looked at the transformer for vehicles of Drawing 1 from arrow V direction. It is a perspective view which shows the external appearance of the transformer for vehicles which concerns on Embodiment 2 of this invention. It is a front view which shows the external appearance of the transformer for vehicles which concerns on the 1st modification of Embodiment 2 of this invention.
  • FIG. 11 is a cross-sectional view of a part of the plurality of cooling pipes shown in FIG. It is a perspective view which shows the external appearance of the transformer for vehicles which concerns on Embodiment 3 of this invention.
  • FIG. 1 is a perspective view showing an appearance of a vehicle transformer according to Embodiment 1 of the present invention.
  • FIG. 2 is a plan view of the vehicle transformer of FIG. 1 viewed from the direction of arrow II.
  • FIG. 3 is a front view of the vehicle transformer of FIG. 1 viewed from the direction of arrow III.
  • FIG. 4 is a left side view of the vehicular transformer of FIG. 1 viewed from the direction of arrow IV.
  • FIG. 5 is a right side view of the vehicle transformer of FIG.
  • the vehicle transformer 100 according to Embodiment 1 of the present invention is a vehicle transformer mounted on the roof of a vehicle. As shown in FIGS. 1 to 5, the vehicle transformer 100 according to the first embodiment of the present invention includes a tank 110, a plurality of cooling pipes 120, and a conservator 140.
  • the tank 110 houses a transformer body (not shown) and is filled with insulating oil as a refrigerant.
  • the transformer body includes an iron core and a winding wound around the iron core.
  • the iron core and the winding are housed in the tank 110 while being immersed in insulating oil.
  • a tank (not shown) for circulating insulating oil is connected to the tank 110.
  • the plurality of cooling pipes 120 are disposed above the tank 110.
  • each of the plurality of cooling pipes 120 extends along the vehicle width direction 2 orthogonal to the vehicle travel direction 1.
  • Each of the cooling pipes 120 has a cylindrical outer shape.
  • Each of the cooling pipes 120 is made of a metal having high thermal conductivity such as stainless steel, copper, or aluminum.
  • the plurality of cooling pipes 120 are arranged side by side in the height direction, and are arranged in the horizontal direction at each height. In the present embodiment, the plurality of cooling pipes 120 are arranged side by side in the traveling direction 1 of the vehicle at each height. In the plurality of cooling pipes 120, the number arranged in the horizontal direction at each height is larger than the number arranged in the height direction. For example, in the plurality of cooling pipes 120, when the number of lines arranged in the horizontal direction at each height is 15, and the number of lines arranged in the height direction is four, a total of 60 cooling pipes 120 are provided. Has been placed.
  • each of the plurality of cooling pipes 120 is connected to the first header 130.
  • the other end of each of the plurality of cooling pipes 120 is connected to the second header 131.
  • Each of the plurality of cooling pipes 120 communicates with each of the first header 130 and the second header 131.
  • the first header 130 and the second header 131 are spaced from each other in the width direction 2 of the vehicle and extend along the traveling direction 1 of the vehicle.
  • Each of the first header 130 and the second header 131 is connected to the upper surface of the tank 110 through a pipe and communicates with the tank 110.
  • the insulating oil in the tank 110 passes through the first header 130, the plurality of cooling pipes 120, and the second header 131, and circulates back to the tank 110 again.
  • the insulating oil is cooled by exchanging heat with the outside air when passing through the plurality of cooling pipes 120.
  • the conservator 140 is arranged on the side of the tank 110 so as to be aligned with the tank 110 along the traveling direction 1 of the vehicle. When viewed from the traveling direction 1 of the vehicle, the conservator 140 and the plurality of cooling pipes 120 do not overlap.
  • the conservator 140 communicates with the tank 110.
  • the conservator 140 is provided to cope with a volume change due to the temperature of the insulating oil. Specifically, when the insulating oil in the tank 110 becomes hot and expands, the insulating oil flows from the tank 110 into the conservator 140, and when the insulating oil in the tank 110 becomes low and contracts. The insulating oil flows into the tank 110 from the conservator 140.
  • the vehicle transformer 100 further includes an inclined portion that inclines so as to rise as it approaches the transformer main body and extends toward the plurality of cooling pipes 120.
  • the vehicle transformer 100 includes a first inclined portion 150, a second inclined portion 151, a third inclined portion 152, and a fourth inclined portion 153.
  • the first inclined portion 150 is provided on the left side surface side of the tank 110.
  • the second inclined portion 151 is provided on the right side surface side of the tank 110.
  • the third inclined portion 152 is provided on the front side of the tank 110.
  • the fourth inclined portion 153 is provided on the back side of the tank 110.
  • Each of the first inclined portion 150, the second inclined portion 151, the third inclined portion 152, and the fourth inclined portion 153 may be configured by a part of the outer wall of the tank 110, or separate from the tank 110. You may be comprised with the member.
  • Each of the first inclined portion 150, the second inclined portion 151, the third inclined portion 152, and the fourth inclined portion 153 guides the wind blown toward the vehicle transformer 100 so as to hit the plurality of cooling pipes 120.
  • the first inclined portion 150 and the second inclined portion 151 guide the wind so that the wind blown in the traveling direction 1 of the vehicle hits the plurality of cooling pipes 120.
  • the third inclined portion 152 and the fourth inclined portion 153 guide the wind so that the wind blowing in the width direction 2 of the vehicle hits the plurality of cooling pipes 120.
  • the plurality of cooling pipes 120 are arranged above the tank 110, so that the traveling wind accompanying the traveling of the vehicle easily hits the plurality of cooling pipes 120.
  • the refrigerant passing through the plurality of cooling pipes 120 can be efficiently cooled.
  • the number of the cooling pipes 120 arranged in the horizontal direction at each height is larger than the number of the cooling pipes 120 arranged in the height direction. 100 can be reduced in height.
  • the vehicular transformer 100 Since the vehicular transformer 100 has an inclined portion that guides the wind blown toward the vehicular transformer 100 to hit the plurality of cooling pipes 120, the refrigerant passing through the plurality of cooling pipes 120 is more efficient. Can cool well.
  • the vehicular transformer according to the second embodiment of the present invention mainly includes the shape of each of the plurality of cooling pipes and the connection form between the header and the tank, and the vehicular transformer according to the first embodiment of the present invention. Since it is different from 100, description is not repeated about the structure similar to the transformer 100 for vehicles which concerns on Embodiment 1 of this invention.
  • FIG. 6 is a perspective view showing an external appearance of the vehicle transformer according to the second embodiment of the present invention.
  • the vehicle transformer 200 according to the second embodiment of the present invention includes a tank 110, a plurality of cooling pipes 220, and a conservator 140.
  • each of the plurality of cooling pipes 220 is arranged above the tank 110.
  • each of the plurality of cooling pipes 220 includes a first leg portion 221 and a second leg portion 223 that extend in the height direction, and a horizontal direction that extends along the width direction 2 of the vehicle. Part 222.
  • One end of the horizontal portion 222 is connected to the other end of the first leg portion 221, and the other end of the horizontal portion 222 is connected to the other end of the second leg portion 223.
  • each first leg portion 221 of each of the plurality of cooling pipes 220 is connected to the first header 230.
  • One end of the second leg portion 223 of each of the plurality of cooling pipes 220 is connected to the second header 231.
  • Each of the plurality of cooling pipes 220 communicates with each of the first header 230 and the second header 231.
  • the first header 230 and the second header 231 are spaced from each other in the width direction 2 of the vehicle and extend along the traveling direction 1 of the vehicle.
  • Each of the first header 230 and the second header 231 is integrally formed on the upper portion of the tank 110.
  • the plurality of cooling pipes 220, the first header 230, and the second header 231 also serve as a reinforcing member for the tank 110.
  • the tank 110 can be reduced in thickness and size.
  • the transformer 200 for vehicles can be reduced in size and weight.
  • FIG. 7 is a front view showing an external appearance of the vehicle transformer according to the first modification of the second embodiment of the present invention.
  • the heights of the first leg 221 and the second leg 223 of the plurality of cooling pipes 220 are the same. As the vehicle goes to one side in the running direction 1 of the vehicle, it becomes higher.
  • the wind blows toward one side of the traveling direction 1 of the vehicle passes through the plurality of cooling pipes 220, it sequentially comes into contact with the cooling pipes 220 having a high height.
  • the wind blown toward one side in the traveling direction 1 of the vehicle efficiently hits the plurality of cooling pipes 220, so that the cooling efficiency of the refrigerant can be increased.
  • FIG. 8 is a front view showing an appearance of a vehicle transformer according to a second modification of the second embodiment of the present invention.
  • the heights of the first leg portions 221 and the second leg portions 223 of the plurality of cooling pipes 220 are set. After going down to one side of the running direction 1 of the vehicle, it gets lower and then goes back to its original height.
  • the wind blown toward one side of the traveling direction 1 of the vehicle first comes into contact with the cooling pipe located on the other side of the traveling direction 1 of the vehicle.
  • a vortex is formed around the cooling pipe in contact with the wind. Due to this vortex, the wind that is in contact with the cooling pipe located on the most other side, while receiving a downward force, is directed to one side in the traveling direction 1 of the vehicle and comes into contact with the second cooling pipe from the other side.
  • a vortex is also formed around the second cooling pipe from the other side, and the wind that has contacted the second cooling pipe from the other side due to this vortex receives a downward force and is on one side in the traveling direction 1 of the vehicle. In contact with the third cooling pipe from the other side.
  • the wind blown toward one side of the traveling direction 1 of the vehicle forms a vortex around each cooling pipe, and as shown by the dotted line in FIG. 8, along the cooling pipe.
  • the plurality of cooling pipes 220 are blown through while inclining.
  • the wind that blows toward the other side of the traveling direction 1 of the vehicle first comes into contact with the cooling pipe located on the most side of the traveling direction 1 of the vehicle.
  • a vortex is formed around the cooling pipe in contact with the wind. Due to this vortex, the wind coming into contact with the cooling pipe located on the most side is directed to the other side in the traveling direction 1 of the vehicle while receiving a downward force, and comes into contact with the second cooling pipe from the one side.
  • a vortex is also formed around the second cooling pipe from the one side, and the wind contacting the second cooling pipe from the one side is subjected to a downward force by the vortex, and the other side in the traveling direction 1 of the vehicle. In contact with the third cooling pipe from one side.
  • the wind blowing toward the other side of the traveling direction 1 of the vehicle forms a vortex around each cooling pipe, and thus, along the cooling pipe as shown by the dotted line in FIG.
  • the plurality of cooling pipes 220 are blown through while inclining.
  • the wind blown in any direction of the traveling direction 1 of the vehicle efficiently hits the plurality of cooling pipes 220, so that the cooling efficiency of the refrigerant can be increased.
  • FIG. 9 is a plan view showing an external appearance of a vehicle transformer according to a third modification of the second embodiment of the present invention.
  • the positions of the plurality of cooling pipes 220 in the vehicle width direction 2 are As it goes to one side, it is shifted to one side in the width direction 2 of the vehicle.
  • the wind blown toward one side in the traveling direction 1 of the vehicle is in contact with the cooling pipes that are sequentially shifted to one side in the width direction 2 of the vehicle when passing through the plurality of cooling pipes 220.
  • the wind blows toward the other side in the traveling direction 1 of the vehicle passes through the plurality of cooling pipes 220, the wind sequentially contacts the cooling pipes that are shifted to the other side in the width direction 2 of the vehicle. .
  • the wind blown in any direction of the traveling direction 1 of the vehicle efficiently hits the plurality of cooling pipes 220, so that the cooling efficiency of the refrigerant can be increased.
  • FIG. 10 is a plan view of a tank of a vehicle transformer and a plurality of cooling pipes according to a fourth modification of the second embodiment of the present invention as viewed from above.
  • FIG. 11 is a cross-sectional view of a part of the plurality of cooling pipes shown in FIG. 10 as viewed from the direction of arrows XI-XI.
  • each of cooling tubes 220 is a flat tube.
  • the plurality of cooling pipes 220 cover the tank 110 when viewed from above the tank 110.
  • each horizontal portion 222 of the plurality of cooling tubes 220 the flat tubes are arranged such that the flat surfaces are orthogonal to the height direction.
  • the plurality of cooling pipes 220 are arranged in a staggered manner when viewed from the extending direction of the horizontal portion 222.
  • the plurality of cooling pipes 220 are arranged without gaps in the traveling direction 1 of the vehicle when viewed from above the tank 110.
  • the plurality of cooling pipes 220 cover the entire tank 110 when viewed from above the tank 110.
  • the leakage magnetic flux generated from the transformer body can be shielded by the plurality of cooling pipes 220. As a result, it is possible to reduce the leakage magnetic flux that reaches the outside of the tank 110. As a result, it is possible to arrange electronic components that are easily affected by magnetic flux around the vehicle transformer 200d.
  • Embodiment 3 the transformer for vehicles concerning Embodiment 3 of the present invention is explained with reference to figures.
  • the vehicular transformer according to the third embodiment of the present invention is mainly different from the vehicular transformer 200 according to the second embodiment of the present invention in the extending direction of the plurality of cooling pipes and the arrangement of the headers.
  • the description of the configuration similar to that of vehicle transformer 200 according to Embodiment 2 of the present invention will not be repeated.
  • FIG. 12 is a perspective view showing an external appearance of the vehicle transformer according to the third embodiment of the present invention.
  • the vehicle transformer 300 according to the third embodiment of the present invention includes a tank 110, a plurality of cooling pipes 320, and a conservator 140.
  • each of the plurality of cooling pipes 320 is arranged above the tank 110.
  • each of the plurality of cooling pipes 320 has a first leg 321 and a second leg 323 extending in the height direction, and a horizontal extending along the traveling direction 1 of the vehicle. Part 322.
  • One end of the horizontal portion 322 is connected to the other end of the first leg portion 321, and the other end of the horizontal portion 322 is connected to the other end of the second leg portion 323.
  • each first leg portion 321 of the plurality of cooling pipes 320 is connected to the first header 330.
  • One end of the second leg portion 323 of each of the cooling pipes 320 is connected to the second header 331.
  • Each of the plurality of cooling pipes 320 communicates with each of the first header 330 and the second header 331.
  • the first header 330 and the second header 331 are spaced from each other in the traveling direction 1 of the vehicle, and extend along the width direction 2 of the vehicle.
  • Each of the first header 330 and the second header 331 is configured integrally with the upper portion of the tank 110.
  • the plurality of cooling pipes 320, the first header 330, and the second header 331 also serve as a reinforcing member for the tank 110.
  • the tank 110 can be reduced in thickness and size.
  • the transformer 300 for vehicles can be reduced in size and weight.
  • each of the plurality of cooling pipes 320 extends along the traveling direction 1 of the vehicle, each of the plurality of cooling pipes 320 is subjected to substantially the same traveling wind as the vehicle travels. The refrigerant passing through the cooling pipe 320 can be efficiently cooled.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
PCT/JP2016/076776 2016-09-12 2016-09-12 車両用変圧器 WO2018047327A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP16915745.0A EP3511961B1 (de) 2016-09-12 2016-09-12 Transformator für fahrzeuge
CN201680088882.9A CN109643601A (zh) 2016-09-12 2016-09-12 车用变压器
PCT/JP2016/076776 WO2018047327A1 (ja) 2016-09-12 2016-09-12 車両用変圧器
CN202211197475.5A CN115424825A (zh) 2016-09-12 2016-09-12 车用变压器
JP2016574291A JP6143983B1 (ja) 2016-09-12 2016-09-12 車両用変圧器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/076776 WO2018047327A1 (ja) 2016-09-12 2016-09-12 車両用変圧器

Publications (1)

Publication Number Publication Date
WO2018047327A1 true WO2018047327A1 (ja) 2018-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/076776 WO2018047327A1 (ja) 2016-09-12 2016-09-12 車両用変圧器

Country Status (4)

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EP (1) EP3511961B1 (de)
JP (1) JP6143983B1 (de)
CN (2) CN115424825A (de)
WO (1) WO2018047327A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6548859B1 (ja) * 2018-11-15 2019-07-24 三菱電機株式会社 車両用変圧器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110517856A (zh) * 2019-09-12 2019-11-29 中车株洲电机有限公司 一种变压器及具有该变压器的机车车辆

Citations (5)

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JPS585354B2 (ja) 1974-11-06 1983-01-31 ベイカ−ドリル.Inc 衝撃式穿孔装置
JP2006269694A (ja) 2005-03-23 2006-10-05 Nissin Electric Co Ltd 電力機器
JP2007273777A (ja) * 2006-03-31 2007-10-18 Toshiba Corp 車両用変圧器の冷却装置
JP2013178018A (ja) * 2012-02-28 2013-09-09 Sumitomo Precision Prod Co Ltd 熱交換器
JP5805354B1 (ja) * 2014-12-26 2015-11-04 三菱電機株式会社 車両用変圧器

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CN101473389B (zh) * 2006-07-10 2011-12-14 三菱电机株式会社 车用变压器
CN201538317U (zh) * 2009-10-31 2010-08-04 中国北车集团大连机车研究所有限公司 顶置式冷却装置
CN201773670U (zh) * 2010-08-28 2011-03-23 中国北车集团大连机车车辆有限公司 全密封油浸牵引变压器
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JP6494384B2 (ja) * 2015-04-09 2019-04-03 三菱電機株式会社 車両用変圧器

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JPS585354B2 (ja) 1974-11-06 1983-01-31 ベイカ−ドリル.Inc 衝撃式穿孔装置
JP2006269694A (ja) 2005-03-23 2006-10-05 Nissin Electric Co Ltd 電力機器
JP2007273777A (ja) * 2006-03-31 2007-10-18 Toshiba Corp 車両用変圧器の冷却装置
JP2013178018A (ja) * 2012-02-28 2013-09-09 Sumitomo Precision Prod Co Ltd 熱交換器
JP5805354B1 (ja) * 2014-12-26 2015-11-04 三菱電機株式会社 車両用変圧器

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Title
See also references of EP3511961A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6548859B1 (ja) * 2018-11-15 2019-07-24 三菱電機株式会社 車両用変圧器
EP3882935A4 (de) * 2018-11-15 2021-12-08 Mitsubishi Electric Corporation Transformator für fahrzeuge

Also Published As

Publication number Publication date
EP3511961B1 (de) 2021-11-03
CN115424825A (zh) 2022-12-02
JPWO2018047327A1 (ja) 2018-09-06
JP6143983B1 (ja) 2017-06-07
EP3511961A1 (de) 2019-07-17
CN109643601A (zh) 2019-04-16
EP3511961A4 (de) 2019-09-04

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