WO2015083204A1 - Machine électrique rotative - Google Patents

Machine électrique rotative Download PDF

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Publication number
WO2015083204A1
WO2015083204A1 PCT/JP2013/007177 JP2013007177W WO2015083204A1 WO 2015083204 A1 WO2015083204 A1 WO 2015083204A1 JP 2013007177 W JP2013007177 W JP 2013007177W WO 2015083204 A1 WO2015083204 A1 WO 2015083204A1
Authority
WO
WIPO (PCT)
Prior art keywords
side bracket
frame
load
stator
load side
Prior art date
Application number
PCT/JP2013/007177
Other languages
English (en)
Japanese (ja)
Inventor
友貴 糸谷
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 JP2015551268A priority Critical patent/JP6000474B2/ja
Priority to PCT/JP2013/007177 priority patent/WO2015083204A1/fr
Priority to TW103102608A priority patent/TWI528687B/zh
Publication of WO2015083204A1 publication Critical patent/WO2015083204A1/fr

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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
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/22—Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
    • H02K9/227—Heat sinks

Definitions

  • the present invention relates to a cooling structure for a rotating electrical machine.
  • Conventional electric rotating machines such as electric motors and generators have a cooling fan on the back, and a frame fitted with the stator is provided with a groove for passing cooling air. By rotating the cooling air generated by driving the fan through the groove, the rotating electrical machine is forcibly cooled (for example, see Patent Document 1).
  • the present invention has been made to solve the above-described problems, and an object thereof is to provide a rotating electrical machine with improved cooling performance.
  • the load side bracket and the anti-load side bracket that respectively support the rotating shaft load side and the anti-load side of the rotor, and the stator is fitted and held therein, and the load-side bracket and the anti-load side It has a cylindrical frame that connects the bracket and a cooling fan attached to the rear side of the anti-load side bracket, and an air passage along the axial direction is formed on the outer periphery of the frame and the anti-load side bracket.
  • One or more pins are inserted axially into the mating surfaces of the frame and the stator, the pins penetrate the anti-load side bracket, the end surfaces of the penetrated pins are connected to the members, and the through portions of the pins and the members are cooled. It is located in the air path of the cooling air induced by driving the fan.
  • the end of the pin heated by the heat generated from the stator is exposed to the cooling path, so that the cooling air hits the pin and the cooling capacity is improved. it can.
  • Example 1 is a cross-sectional view of a rotating electrical machine showing Embodiment 1 of the present invention
  • FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1 showing Embodiment 1 of the present invention
  • FIG. 3 is an embodiment of the present invention.
  • FIG. 6 is an enlarged view of the periphery of the anti-load side bracket of the rotating electrical machine showing Example 1;
  • FIG. 4 is a rear view of the rotating electric machine with the cooling fan unit shown in Embodiment 1 of the present invention removed, and shows the shape of an annular member that is a component of the present invention.
  • reference numeral 1 denotes a frame of a rotating electric machine, 2 a stator, 3 a pin installed on a fitting surface between the frame 1 and the stator 2, and 4 an annular member connected to the pin 3.
  • Reference numeral 5 denotes an anti-load side bracket fitted to the frame 1
  • 6 denotes a load side bracket fitted to the frame 1
  • 7 denotes a cooling fan unit provided on the anti-load side bracket side for cooling heat generated from the rotating electrical machine.
  • . 8 is an air passage
  • 9 is a cooling air inlet that is sucked by the cooling fan unit 7
  • 10 is a cooling air outlet that is discharged by the cooling fan unit 7
  • 11 is provided on the outer periphery of the frame 11, along the axial direction.
  • Reference numeral 12 denotes a rotor, and a load is connected to the load side bracket 6 side.
  • pins 3 having a rectangular cross section perpendicular to the axial direction and having high thermal conductivity are press-fitted into the fitting surface of the frame 1 and the stator 2.
  • one end face penetrates the anti-load side bracket 5 to expose the air passage 8 and the exposed portion of the pin 3 penetrating the anti-load side bracket 5 is an annular member 4 having high thermal conductivity. It is connected to the structure.
  • the other end surface in the axial direction of the pin 3 is not in contact with the load side bracket 6 of the stator 2, and the insertion of the pin 3 is stopped up to the end surface of the stator 2.
  • cooling air is generated.
  • This cooling air is provided on the load-side bracket 6 side because the cooling fan unit 7 is provided on the anti-load side bracket 5 side.
  • the cooling air flows from 9 and then cools the frame 1 from the load side bracket 6 toward the anti-load side bracket 5 through a plurality of air passages 11 provided on the outer periphery of the frame 1. Then, the air is discharged from the cooling air outlet 10.
  • the fitting surface of the frame 1 and the stator 2 has the same number of recesses along the axial direction to press-fit the four pins 3, and the stator 2 is attached to the frame 1.
  • the positions of the recesses are aligned so that the gap formed by the recesses of the frame 1 and the stator 2 is rectangular.
  • the dimension of the pin 3 is a dimension that is press-fitted into the gap, and by reducing the surface roughness of the pin 3, the contact area between the frame 1 and the stator 2 is improved, and the thermal resistance is reduced.
  • the cooling air cools the frame 1 and at the same time the pin 3 also has a shaft. It will cool along the direction.
  • the annular member 4 is connected to the end face of the pin 3 on the side opposite to the load 5 and is made of a material having high thermal conductivity. Since the cooling air passes through the air passage 8, the surface of the annular member 4 is also cooled. Then, the cooling air is discharged from the cooling air discharge port 10 through the air passage 8.
  • the heat generated in the stator 2 as the rotor 12 rotates is conducted to the frame 1, the anti-load side bracket 5, and the load side bracket 6, and eventually the end surfaces of the pin 3 and the pin 3 on the anti-load side bracket 5 side.
  • the pin 3 and the annular member 4 can be cooled by the cooling air generated by the cooling fan unit 7 by adopting the structure shown in the first embodiment of the present invention.
  • the heat generation of the stator 2 can be cooled.
  • the heat conducted from the stator 2 to the frame 1 is forcibly cooled by the cooling air flowing into the air passage 11 provided in the frame 1.
  • the cooling air hits the pin 3 and the cooling capacity is further improved. High efficiency of the rotating electrical machine can be realized.
  • the end surface of the pin 3 exposed to the air passage 8 by passing through the anti-load side bracket 5 is connected to the annular member 4, so that the surface area corresponding to the cooling air is increased.
  • the cooling capacity is improved and the efficiency of the rotating electrical machine can be increased.
  • the contact area between the stator 2 and the pin 3 is increased, the thermal resistance is reduced, and the cooling capacity is further improved. Can be expected.
  • the pin 3 is inserted into the fitting surface of the frame 1 and the stator 2 and penetrates the anti-load side bracket 5.
  • the rotation of the stator 2 can be stopped without using the pins inserted from the outer circumferential direction.
  • the pin 3 is shaped to be exposed to the air passage 8 by penetrating the anti-load side bracket 5, so that the stator 2 and the frame 1 are fitted.
  • the pin 3 serves as a guide at the time of mounting, and the effect of improving the assembly accuracy can be expected.
  • the temperature rise of the side bracket 6 can be suppressed, and deterioration of the processing accuracy of the machine tool can be suppressed.
  • the insertion portion of the pin 3 is selected at a location where the air passage 11 is not formed in the frame 1, and the frame 1 at the outer peripheral portion of the stator 2.
  • the case where four places are provided so that the square gap is displaced by 90 degrees with respect to the axis center when the stator 2 is shrink-fitted to the stator 2 is not limited to this, but at least the outer circumference of the stator 2 It is sufficient if there is at least one place on the top.
  • the cross section perpendicular to the axial direction of the pin 3 is rectangular has been described.
  • the present invention is not limited to this, and may be circular, elliptical, or the like.

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

Abstract

La présente invention a pour but de résoudre la détérioration de l'efficacité de refroidissement, ce qui s'est avéré problématique dans des machines électriques rotatives classiques. Une machine électrique rotative possède un cadre cylindrique (1) et une unité de ventilateur de refroidissement (7), et est pourvue d'un trajet de vent (11) : le cadre cylindrique (1) se règle à un stator (2) et le retient à l'intérieur et relie un support côté charge (6) et un support côté charge opposé (5) ; l'unité de ventilateur de refroidissement (7) est fixée sur le côté arrière du support côté charge opposé (5) ; le trajet de vent (11) est formé sur les circonférences externes du cadre (1) et du support côté charge opposé (5) le long d'une direction d'arbre. Dans la machine électrique rotative, une ou plusieurs broches (3) sont insérées dans une direction d'arbre dans la surface de réglage entre le cadre (1) et le stator (2). Les broches (3) pénètrent dans le support côté charge opposé (5), et les surfaces d'extrémité des broches pénétrées (3) sont assemblées à un élément circulaire (4). Les parties pénétrées des broches (3) et l'élément circulaire (4) sont positionnés dans un trajet de vent (8) de refroidissement, généré par l'entraînement de l'unité de ventilateur de refroidissement (7).
PCT/JP2013/007177 2013-12-06 2013-12-06 Machine électrique rotative WO2015083204A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2015551268A JP6000474B2 (ja) 2013-12-06 2013-12-06 回転電機
PCT/JP2013/007177 WO2015083204A1 (fr) 2013-12-06 2013-12-06 Machine électrique rotative
TW103102608A TWI528687B (zh) 2013-12-06 2014-01-24 旋轉電機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2013/007177 WO2015083204A1 (fr) 2013-12-06 2013-12-06 Machine électrique rotative

Publications (1)

Publication Number Publication Date
WO2015083204A1 true WO2015083204A1 (fr) 2015-06-11

Family

ID=53273002

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/007177 WO2015083204A1 (fr) 2013-12-06 2013-12-06 Machine électrique rotative

Country Status (3)

Country Link
JP (1) JP6000474B2 (fr)
TW (1) TWI528687B (fr)
WO (1) WO2015083204A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI609564B (zh) * 2016-06-03 2017-12-21 Drain cover for gas inlet and outlet

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100050U (fr) * 1979-12-27 1981-08-06
JP2002165410A (ja) * 2000-11-21 2002-06-07 Nissan Motor Co Ltd モータまたは発電機
WO2010100756A1 (fr) * 2009-03-06 2010-09-10 三菱電機株式会社 Moteur doté d'un ventilateur de refroidissement

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100050U (fr) * 1979-12-27 1981-08-06
JP2002165410A (ja) * 2000-11-21 2002-06-07 Nissan Motor Co Ltd モータまたは発電機
WO2010100756A1 (fr) * 2009-03-06 2010-09-10 三菱電機株式会社 Moteur doté d'un ventilateur de refroidissement

Also Published As

Publication number Publication date
JPWO2015083204A1 (ja) 2017-03-16
TWI528687B (zh) 2016-04-01
JP6000474B2 (ja) 2016-09-28
TW201524090A (zh) 2015-06-16

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