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WO2020184811A1 - Moteur de type à enroulement axial - Google Patents

Moteur de type à enroulement axial Download PDF

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Publication number
WO2020184811A1
WO2020184811A1 PCT/KR2019/016521 KR2019016521W WO2020184811A1 WO 2020184811 A1 WO2020184811 A1 WO 2020184811A1 KR 2019016521 W KR2019016521 W KR 2019016521W WO 2020184811 A1 WO2020184811 A1 WO 2020184811A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
core
motor
wound
present
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2019/016521
Other languages
English (en)
Korean (ko)
Inventor
윤수한
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eflow Co Ltd
Original Assignee
Eflow Co Ltd
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 Eflow Co Ltd filed Critical Eflow Co Ltd
Publication of WO2020184811A1 publication Critical patent/WO2020184811A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • H02K9/197—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/22—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of hollow conductors

Definitions

  • the present invention relates to an axial winding type motor, and more particularly, to an axial winding type motor capable of effectively cooling heat generated from a coil.
  • a motor is composed of a stator having a core wound with a coil and a rotor with a permanent magnet having N and S poles.
  • a current is supplied to the coil, a magnetic field is generated, and the permanent magnet is generated by the generated magnetic field.
  • It is a device that converts electrical energy into mechanical energy by rotating.
  • An object of the present invention is to provide an axial winding type motor capable of directly cooling heat generated from a coil.
  • the axial winding type motor includes a rotor and a stator.
  • the stator includes a core and a coil.
  • the coil has a bar-shaped square shape with a square cross section, and is wound in one end in the width direction of the core, and is wound along the length direction of the core.
  • the coil is preferably a hollow tube so that the refrigerant flows therein.
  • the axial winding type motor includes a rotor and a stator.
  • the stator includes a core and a coil.
  • the coil is a hollow tube so that the refrigerant flows therein and is wound around the core.
  • the coil wound around the core is made of a hollow tube and a refrigerant flows inside the tube, heat generated from the coil can be directly absorbed and cooled. Therefore, it is possible to prevent damage due to heat generation of the coil, thereby improving the durability of the motor and preventing breakdown of peripheral parts.
  • the cross section of the coil wound around the core is in the shape of a square bar shape and is wound in one end in the width direction of the core, and is wound along the length direction of the core. In this case, it is possible to increase the efficiency of the motor.
  • FIG. 1 is a perspective view in which a coil of an embodiment is wound on a core of an axial winding motor according to the present invention
  • FIG. 2 is a perspective view of a core in which the coil of the embodiment shown in FIG. 1 is wound once,
  • Figure 3 is a front view of the embodiment shown in Figure 1,
  • Figure 4 is a perspective view of the coil of another embodiment winding the core of the axial winding type motor according to the present invention.
  • FIGS. 1 to 3 An embodiment of an axial winding type motor according to the present invention will be described with reference to FIGS. 1 to 3.
  • the axial winding type motor according to the present invention includes a rotor and a stator. Since the rotor is the same as that disclosed in the conventional motor, detailed description will be omitted.
  • the stator includes a core 10 and a coil 20.
  • a plurality of cores 10 are disposed at regular intervals in the circumferential direction around the motor shaft.
  • the coil 20 is made of a hollow tube in which a cooling passage 21 is formed so that the refrigerant flows therein, and is wound in one end in the width direction of the core 10 (in the direction of arrow A). It is wound around the circumference along the length direction (arrow B direction).
  • the coil 20 may be multi-stage winding in the width direction (arrow A direction), in this case, there may be a lot of friction loss when the coolant flows inside the coil 20, so in this embodiment, it is in the width direction (arrow A direction). It was made to be wound in one stage. So, if there is not much friction loss, it can be wound in multiple stages.
  • the cooling flow path 21 of the coil 20 surrounds the entire outer surface of the core 10 so as to be connected to each other in the longitudinal direction (arrow B direction). Therefore, when the refrigerant flows into one end (20a) of the coil (20), the refrigerant moves along the longitudinal direction (arrow B direction) of the core (10) to cool the heat generated in the coil (20) and It is discharged to the outside through the other end (20b). Thus, the heat generated by the coil 20 can be cooled directly over the entire core 10.
  • the cooling structure of the motor was not a method of directly cooling the coil, there was a limitation in effectively cooling the heat generated from the coil, but in this embodiment, the refrigerant flows directly into the coil 20 to cool the coil 20 Therefore, the heat generated by the motor can be effectively cooled.
  • FIG. 4 is another embodiment of an axial winding type motor according to the present invention. Another embodiment of the axial winding type motor according to the present invention will be described with reference to FIG. 4.
  • the coil 20 of the embodiment shown in FIG. 1 is formed as a hollow tube in which a cooling channel 21 is formed so that the refrigerant flows therein, but the coil 20 shown in FIG. 4 has a rectangular cross section. It is formed in a square shape. In this case, it is possible to increase the efficiency of the motor.
  • the remaining components are the same as those of the embodiment shown in FIG. 1, and thus detailed descriptions thereof will be omitted.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

La présente invention concerne un moteur et, plus particulièrement, un moteur capable de refroidir efficacement la chaleur générée par une bobine sans avoir un élément de refroidissement séparé. Le moteur de type à enroulement axial selon la présente invention comprend : un rotor; et un stator. Le stator comporte un noyau et une bobine. La bobine a une section transversale rectangulaire en forme de barre et à angle plat et est enroulée avec une extrémité dans la direction de la largeur du noyau, puis enroulée le long de la direction longitudinale du noyau. Selon la présente invention, la bobine enroulée autour du noyau est formée d'un tube creux, et lorsqu'un fluide frigorigène s'écoule à l'intérieur du tube, la chaleur générée par la bobine peut être directement absorbée et refroidie. Par conséquent, il est possible d'empêcher des dommages causés par la génération de chaleur de la bobine, améliorant ainsi la durabilité du moteur et empêchant une défaillance de parties périphériques. De plus, selon la présente invention, la section transversale de la bobine enroulée autour du noyau est rectangulaire en forme de barre et à angle plat et est enroulée avec une extrémité dans la direction de la largeur du noyau et enroulée le long de la direction longitudinale du noyau. Dans ce cas, l'efficacité du moteur peut être augmentée.
PCT/KR2019/016521 2019-03-08 2019-11-28 Moteur de type à enroulement axial Ceased WO2020184811A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0026919 2019-03-08
KR20190026919 2019-03-08

Publications (1)

Publication Number Publication Date
WO2020184811A1 true WO2020184811A1 (fr) 2020-09-17

Family

ID=72427577

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2019/016521 Ceased WO2020184811A1 (fr) 2019-03-08 2019-11-28 Moteur de type à enroulement axial

Country Status (1)

Country Link
WO (1) WO2020184811A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002335648A (ja) * 2001-04-20 2002-11-22 Alstom 電気機械の冷却
JP2004320974A (ja) * 2003-04-04 2004-11-11 Nissan Motor Co Ltd ステータ冷却構造
KR20090004694A (ko) * 2007-07-03 2009-01-12 제너럴 일렉트릭 캄파니 전기 기계의 영구 자석 회전자의 자화용 조립체 및 방법
JP2009033898A (ja) * 2007-07-27 2009-02-12 Nissan Motor Co Ltd 回転電機の冷却構造
KR20140005159A (ko) * 2010-10-18 2014-01-14 라펜란난 테크닐리넨 일리오피스토 전기 기계용 고정자 및 전기 기계

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002335648A (ja) * 2001-04-20 2002-11-22 Alstom 電気機械の冷却
JP2004320974A (ja) * 2003-04-04 2004-11-11 Nissan Motor Co Ltd ステータ冷却構造
KR20090004694A (ko) * 2007-07-03 2009-01-12 제너럴 일렉트릭 캄파니 전기 기계의 영구 자석 회전자의 자화용 조립체 및 방법
JP2009033898A (ja) * 2007-07-27 2009-02-12 Nissan Motor Co Ltd 回転電機の冷却構造
KR20140005159A (ko) * 2010-10-18 2014-01-14 라펜란난 테크닐리넨 일리오피스토 전기 기계용 고정자 및 전기 기계

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