WO2022091227A1 - Machine tournante de type à rotor externe - Google Patents

Machine tournante de type à rotor externe Download PDF

Info

Publication number
WO2022091227A1
WO2022091227A1 PCT/JP2020/040313 JP2020040313W WO2022091227A1 WO 2022091227 A1 WO2022091227 A1 WO 2022091227A1 JP 2020040313 W JP2020040313 W JP 2020040313W WO 2022091227 A1 WO2022091227 A1 WO 2022091227A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
rotor
cooling
stator
rotary machine
Prior art date
Application number
PCT/JP2020/040313
Other languages
English (en)
Japanese (ja)
Inventor
香南 宮城
尚史 小谷
航 松山
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to PCT/JP2020/040313 priority Critical patent/WO2022091227A1/fr
Publication of WO2022091227A1 publication Critical patent/WO2022091227A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present invention relates to an outer rotor type rotary machine.
  • An outer rotor type rotary machine which includes a stator in which a coil is arranged and a rotor in which a magnet is arranged, and the stator is arranged on the inner circumference of the rotor.
  • a cooling fan having an outer diameter substantially the same as the outer diameter of the rotor is provided on the top surface of the rotor (the surface corresponding to the opposite side of the engine), and the cooling fan blows cooling air to the engine side.
  • a generator that blows air (see, for example, Patent Document 1).
  • an object of the present invention is to provide an outer rotor type rotary machine which is advantageous for improving the cooling performance of members inside and outside the rotor.
  • an outer rotor type rotation having a stator in which a coil is arranged, a rotor in which a magnet is arranged, and a cooling fan that rotates integrally with the rotor is provided, and the stator is arranged on the inner circumference of the rotor.
  • the cooling fan is connected to a rotor cooling first blade arranged on the outer peripheral portion of the rotor and the first blade, and is arranged on one side of the rotary machine in the axial direction with respect to the stator.
  • a second blade for cooling the stator and a partition body for partitioning between the first blade and the second blade are provided.
  • the partition body divides the blade in which the first blade and the second blade are integrated into one side portion and the other side portion in the axial direction, and is a plate along the radial direction of the rotor. It may have a shape extending along the circumferential direction of the rotor.
  • downstream end of the outer peripheral edge of the blade in which the first blade and the second blade are integrated may be formed in a notched shape.
  • the outer peripheral edge of the second blade may be located radially inside the rotor with respect to the outer peripheral edge of the first blade.
  • the first blade may be equipped with a guide body that guides the cooling air sucked by the first blade to the inner peripheral portion of the first blade.
  • the rotor has a cooling air intake port that takes in outside air by the rotation of the first blade on the inner circumference of the guide body, and the rotor 15 takes the outside air into the rotor by the rotation of the second blade. It may have a second cooling air intake to be taken in.
  • At least one of the number of blades, the blade shape, and the arrangement interval may be different between the first blade and the second blade.
  • an outer rotor type rotary machine which is advantageous for improving the cooling performance of members inside and outside the rotor.
  • FIG. 1 is a diagram showing an engine including an alternator according to the first embodiment of the present invention.
  • FIG. 2 is a perspective view of the alternator.
  • FIG. 3 is a plan view of the alternator.
  • FIG. 4 is a side sectional view of the alternator.
  • FIG. 5 is a plan view of the alternator according to the second embodiment as viewed from the upstream side.
  • FIG. 6 is a side sectional view of the alternator.
  • FIG. 7 is a plan view of the alternator according to the third embodiment as viewed from the upstream side.
  • FIG. 8 is a side sectional view of the alternator.
  • FIG. 9 is a diagram showing a cooling fan of the alternator according to the fourth embodiment.
  • FIG. 10 is a diagram showing a cooling fan of the alternator according to the fifth embodiment.
  • FIG. 11 is a diagram showing a cooling fan of the alternator according to the sixth embodiment.
  • FIG. 1 is a diagram showing an engine 1 provided with an alternator 11 according to the first embodiment of the present invention.
  • the engine 1 is an engine having an integrated alternator 11 and is used as an engine generator.
  • the engine 1 is an internal combustion engine.
  • a cooling fan is provided for cooling the alternator and the engine at the same time because compactness is required.
  • the engine 1 shown in FIG. 1 is a V-type 2-cylinder air-cooled engine including a crankcase 1A and two cylinders 1B (hereinafter referred to as a cylinder portion 1B) arranged at a predetermined narrow angle.
  • An alternator 11 including a cooling fan 21 is attached to the output shaft 1J (crank shaft in this configuration) of the engine 1.
  • FIG. 2 is a perspective view of the alternator 11, and FIG. 3 is a plan view of the alternator 11.
  • FIG. 4 is a side sectional view of the alternator 11.
  • the alternator 11 includes a stator 13 that is relatively rotatable and coaxially arranged with the output shaft 1J of the engine 1, and a rotor 15 (also referred to as an outer rotor) that rotates integrally with the output shaft 1J. And a cooling fan 21 that rotates integrally with the rotor 15.
  • the alternator 11 can also be referred to as an outer rotor type rotary machine in which the stator 13 is arranged on the inner circumference of the rotor 15.
  • the stator 13, rotor 15, and cooling fan 21 are made of, for example, metal. However, the cooling fan 21 or the like may be made of resin.
  • the stator 13 includes a stator core in which slots 13C are provided at intervals in the circumferential direction with respect to the axis of the stator 13 (corresponding to the position of the output shaft 1J), and a coil is mounted in each slot 13C.
  • the circumferential direction corresponds to the circumferential direction of the output shaft 1J, and is also the circumferential direction of the stator 13, the circumferential direction of the rotor 15, and the circumferential direction of the alternator 11.
  • the rotor 15 includes a bowl-shaped rotor body 15A in which a magnet 15M (FIG. 4) is arranged along an annular track surrounding the stator 13.
  • the alternator 11 outputs the induced current generated in the stator 13 due to the rotation of the rotor 15 to the outside via a cable (not shown).
  • the cooling fan 21 is formed separately from the rotor main body 15A, and is attached to the rotor main body 15A by using a predetermined connecting member (for example, a fastening bolt).
  • the rotor body 15A is provided with a plurality of openings 15K that function as cooling air intakes for taking in air around the rotor 15 into the stator 13. These openings 15K are provided at equal angles along the circumferential direction of the rotor 15 to expose the slot 13C and the coil to the outside of the rotor 15.
  • the opening 15K of the present configuration is formed in a fan-shaped (also referred to as an isosceles triangle) opening shape in which the opening expands as the distance from the central axis of the rotor 15 increases in a plan view of the rotor 15.
  • FIG. 4 schematically shows the flow of the cooling air W1 and W2 generated by the rotation of the cooling fan 21.
  • the cooling air W1 indicates the cooling air generated on the outer peripheral side of the rotor 15, and the cooling air W2 indicates the cooling air generated on the inner peripheral side of the rotor 15.
  • the upstream side of the cooling air W1 and W2 is indicated by the reference numeral UP
  • the downstream side of the cooling air W1 and W2 is indicated by the reference numeral DW in order to make the explanation easy to understand.
  • the engine 1 is arranged on the downstream DW of the cooling air W1 and W2. In the following description, when it is necessary to separately describe the cooling air W1 and W2, they are described as the first cooling air W1 and the second cooling air W2.
  • the cooling fan 21 has blades 23 (also referred to as fan blades) arranged on the outer peripheral portion of the rotor 15 at intervals in the circumferential direction, and each blade 23 is arranged in the circumferential direction of the rotor 15. It is provided with an annular plate-shaped crossing member 25 that crosses the crossing member 25 and an annular plate-shaped guide body 27 that is arranged at intervals on the upstream side of the cooling air W1 and W2 with respect to the crossing member 25. The guide body 27 is attached to the upstream end of each blade 23.
  • blades 23 also referred to as fan blades
  • Each blade 23 is formed in a blade shape that allows air on the upstream side to flow to the downstream side. More specifically, each blade 23 is formed in a plate shape that gently curves toward the outer peripheral side in the front view shown in FIG. Further, each blade 23 extends along the axial direction of the rotor 15 on the outer peripheral side of the rotor main body 15A in the side sectional view shown in FIG. 4, and projects to the downstream side of the rotor main body 15A.
  • each blade 23 is indicated by reference numeral P1
  • the downstream end position is indicated by reference numeral P2
  • the downstream end position of the rotor main body 15A is indicated by reference numeral P3.
  • the upstream end position P1 and the downstream end position P2 of each blade 23 are aligned at the same position in the side sectional view. Further, the downstream end position P3 of the rotor main body 15A is also a position where the crossing member 25 crosses the blade 23.
  • the crossing member 25 crosses each blade 23 in the circumferential direction of the rotor 15 so that each blade 23 is divided into a first blade 23A which is a portion upstream of the crossing position P3. It is partitioned from the second blade 23B, which is a portion downstream of the crossing position P3. Since the crossing member 25 partitions between the first blade 23A and the second blade 23B, the air on the upstream side and the outer peripheral side of the rotor 15 becomes independent by the first blade 23A with the crossing member 25 as a partition body as a boundary. Is blown. Further, the air on the downstream side is independently blown by the second blade 23B with the crossing member 25 as a boundary.
  • the first blade 23A functions as a rotor cooling blade that sucks the air around the rotor 15 and flows the first cooling air W1 along the outer peripheral surface of the rotor 15.
  • the second blade 23B functions as a blade for cooling the stator by sucking the air around the rotor 15 through the opening 15K and flowing the second cooling air W2 into the rotor 15.
  • the first cooling air W1 cools the outer peripheral portion of the rotor 15 (for example, around the magnet 15M) and then flows toward the engine 1 through the outer peripheral surface of the rotor 15, which also contributes to cooling the engine 1. As shown by reference numeral ⁇ in FIG. 4, the cooling air W1 flows toward the engine 1 after being guided to the outer peripheral side of the alternator 11 by the crossing member 25. Therefore, the cylinder portion 1B, which has a relatively high temperature even in the engine 1, can be effectively cooled.
  • the second cooling air W2 cools the slot 13C and the coil, and also cools the inner peripheral side portion of the magnet 15M. As described above, since the crossing member 25 is located on the upstream side of the second blade 23B, the air on the outer peripheral portion of the rotor 15 is hardly sucked by the second blade 23B. Therefore, the heat in the alternator 11 can be effectively exhausted, and the alternator 11 can be effectively cooled.
  • the guide body 27 As shown in FIGS. 2 and 3, the guide body 27 is connected to the upstream end portion of the first blade 23A and covers the outer peripheral portion of the first blade 23A when viewed from the upstream side of the cooling fan 21. The inner peripheral portion of the blade 23A is exposed.
  • the guide body 27 can guide the first cooling air W1 to the inner peripheral portion of the first blade 23A.
  • the cooling air intake port to the outer periphery of the rotor 15 can be limited to the intake port 27G (appropriately referred to as the first cooling air intake port 27G) for introducing air into the inner peripheral portion of the first blade 23A. .. Therefore, the first cooling air W1 can be easily flowed in the vicinity of the outer peripheral surface of the rotor 15, and the magnet 15M and the like arranged inside the outer peripheral surface of the rotor 15 can be effectively cooled by the first cooling air W1.
  • the guide body 27 bridges between the adjacent first blades 23A, the guide body 27 functions as a reinforcing member of each first blade 23A, and deformation of each first blade 23A can be suppressed. Since the cross-linking member 25 also bridges between the adjacent first blades 23A, it functions as a reinforcing member for each first blade 23A, and it becomes possible to further suppress the deformation of each first blade 23A.
  • another guide body 31 that partitions the boundary between the cooling air W1 and the cooling air W2 may be arranged upstream of the alternator 11.
  • the other guide body 31 is formed, for example, in a cylindrical shape extending along the axial direction of the alternator 11.
  • the cooling air W1 and W2 can be rectified by the other guide body 31, which is advantageous for increasing the air volume of the cooling air W1 and W2.
  • the shape of the other guide body 31 and the like can be changed as appropriate.
  • the cooling fan 21 is connected to the rotor cooling first blade 23A and the first blade 23A arranged on the outer peripheral portion of the rotor 15, and is on one side of the alternator 11 in the axial direction with respect to the stator 13. It includes a second blade 23B for cooling the stator to be arranged, and a crossing member 25 that functions as a partition body that partitions the first blade 23A and the second blade 23B.
  • the members inside and outside the rotor 15, that is, the rotor 15, the magnet 15M, the stator 13, the slot 13C, the coil, and the like can be effectively cooled.
  • the cooling fan 21 can be easily miniaturized as compared with the case where separate blades for independently cooling the rotor 15, the engine 1, and the stator 13 are provided.
  • an alternator 11 that is advantageous in improving cooling performance and miniaturization, and it becomes easy to miniaturize the engine generator. Further, by using the cooling fan 21, it becomes easy to obtain sufficient engine cooling performance even if the heat generation amount of the engine 1 increases due to the increase in the number of cylinders and the increase in the displacement. Further, even if the calorific value of the alternator 11 increases due to an increase in the amount of power generation or the like, it becomes easy to obtain sufficient alternator cooling performance.
  • the crossing member 25 has a blade 23 in which the first blade 23A and the second blade 23B are integrated, and the blade 23 is provided on one side portion (corresponding to the upstream side portion) and the other side portion (downstream side portion) of the alternator 11 in the axial direction. Equivalent) and divided into.
  • the blown air of the first blade 23A and the blown air of the second blade 23B can be partitioned in the axial direction, and it becomes easy to independently cool different parts of each blown air.
  • the crossing member 25 has a plate shape along the radial direction of the rotor 15 and has a shape extending along the circumferential direction of the rotor 15. According to this configuration, the blown air flowing along the axial direction can be guided outward in the radial direction by the crossing member 25, and it becomes easy to effectively cool the cylinder portion 1B of the engine 1 which is a large component outside the rotor 15.
  • the first blade 23A is attached with a guide body 27 that guides the cooling air W1 sucked by the first blade 23A to the inner peripheral portion of the first blade 23A.
  • the cooling air W1 can be flowed in the vicinity of the outer peripheral surface of the rotor 15 to effectively cool the magnet 15M and the like arranged inside the outer peripheral surface of the rotor 15.
  • the rotor 15 has a first cooling air intake port 27G on the inner circumference of the guide body 27 that takes in outside air by the rotation of the first blade 23A, and the rotor 15 has the outside air taken in by the rotation of the second blade 23B. It has an opening 15K that functions as a second cooling air intake to be taken in. This facilitates effective cooling of each portion including the outer circumference of the rotor 15 and the inner circumference of the rotor 15.
  • FIG. 5 is a plan view of the alternator 11 according to the second embodiment as viewed from the upstream side.
  • FIG. 6 is a side sectional view of the alternator 11.
  • the second embodiment is different from the first embodiment in that the arrangement of the stator 13 and the rotor 15 is opposite to that of the first embodiment. That is, the rotor 15 of the second embodiment has a rotor main body 15A formed in a convex bowl shape on the downstream side, and is arranged in the stator 13 from the upstream side with respect to the rotor main body 15A. Except for this point, the arrangement and shape of other members including the blade 23, the crossing member 25, the guide body 27, and the like are the same as those in the first embodiment, and therefore duplicate description will be omitted.
  • the first cooling air W1 and the second cooling air W2 which are substantially the same as in the case of FIG. 4, can be flowed by each of the first blade 23A and the second blade 23B. ..
  • the cooling air is reduced by the amount that the open side (opposite side of the opening 15K) of the rotor body 15A faces the upstream side of the cooling air W2. It can be expected that W2 makes it easier to cool the entire stator 13 more positively.
  • whether to adopt the structure of the first embodiment or the structure of the second embodiment may be appropriately selected in consideration of the arrangement space of the alternator 11.
  • FIG. 7 is a plan view of the alternator 11 according to the third embodiment as viewed from the upstream side.
  • FIG. 8 is a side sectional view of the alternator 11.
  • the cooling fan 21 is formed of a metal component integrated with the yoke of the rotor 15, and the upstream end portion 23J (FIG. 8) of the inner peripheral edge of the first blade 23A is closer to the inner peripheral side. It differs from the first embodiment in that it has a shape that is notched long in the axial direction. Except for these points, the arrangement and shape of the other members including the crossing member 25 and the guide body 27 are the same as those in the first embodiment, and therefore duplicate description will be omitted.
  • the cooling fan 21 is formed of a metal component integrated with the yoke of the rotor 15, the cooling fan 21 also functions as a heat sink for dissipating heat from the yoke. This is advantageous for improving the cooling performance, reducing the number of parts, and reducing the size of the cooling fan 21.
  • the cooling fan 21 may be formed of aluminum metal or the like, which is advantageous for heat dissipation, and the cooling fan 21 may be joined to the yoke of another component by using a known joining method such as brazing. In this case as well, the cooling fan 21 can function as a heat sink for the yoke.
  • the upstream end portion 23J (FIG. 8) of the inner peripheral edge of the first blade 23A into a shape that is notched longer in the axial direction toward the inner peripheral side, the first cooling air W1 flows into the cooling fan 21. This facilitates and is advantageous for increasing the cooling air W1. Further, the guide body 27 connected to the upstream end of the first blade 23A makes it easy to efficiently send the cooling air W1 to the engine 1 side.
  • FIG. 9 is a diagram showing a cooling fan 21 of the alternator 11 according to the fourth embodiment
  • reference numeral A is a perspective view of the cooling fan 21 seen from the upstream side
  • reference numeral B is a perspective view of the cooling fan 21 seen from the downstream side. The perspective view of is shown.
  • the downstream end portion (indicated by reference numeral NT in FIG. 7) of the outer peripheral edge of the blade 23 in which the first blade 23A and the second blade 23B are integrated is notched. Except for this point, the arrangement and shape of the other members are substantially the same as those in the first embodiment.
  • FIG. 10 is a diagram showing a cooling fan 21 of the alternator 11 according to the fifth embodiment
  • reference numeral A is a perspective view of the cooling fan 21 seen from the upstream side
  • reference numeral B is a perspective view of the cooling fan 21 seen from the downstream side. The perspective view of is shown.
  • the outer peripheral edge of the second blade 23B is positioned radially inside the rotor 15 with respect to the outer peripheral edge of the first blade 23A. As a result, the first blade 23A is formed into a fan having a relatively large diameter, and the second blade 23B is formed into a fan having a relatively small diameter.
  • the first blade 23A can be made into a large-diameter fan advantageous for blowing air around the rotor 15, and the second blade 23B can be made into a small-diameter fan advantageous for blowing air around the inner circumference of the stator 13.
  • the inner peripheral side end of the second blade 23B may be extended to the inner peripheral side of the inner peripheral side end of the first blade 23A.
  • the downstream end of the outer peripheral edge of the first blade 23A is formed by cutting out the downstream end of the outer peripheral edge of the blade 23 (indicated by reference numeral NT in FIG. 10).
  • the shape is cut out to the same position as the outer peripheral edge of the second blade 23B.
  • the area of the first blade 23A can be reduced by cutting out a part of the outer peripheral edge of the blade 23 more than in the case shown in FIG. This makes it possible to reduce the blowing resistance of the blade 23 (the blowing resistance of the cooling fan 21) and to sufficiently secure a gap between the blade 23 and surrounding articles.
  • FIG. 11 is a diagram showing a cooling fan 21 of the alternator 11 according to the sixth embodiment
  • reference numeral A is a perspective view of the cooling fan 21 seen from the upstream side
  • reference numeral B is a perspective view of the cooling fan 21 seen from the downstream side.
  • the perspective view of is shown.
  • the number of the first blade 23A and the number of the second blade 23B are different. More specifically, by shortening the arrangement interval (also referred to as pitch) of the first blade 23A and the arrangement interval of the second blade 23B, the number of the first blades 23A is increased as compared with the second blade 23B. There is.
  • each blade 23A and 23B By independently adjusting the number of blades of each blade 23A and 23B and the arrangement interval, the amount of air blown from each of the blades 23A and 23B can be adjusted independently, and it becomes easy to obtain an appropriate amount of air blown. If the number of blades of each blade 23A and 23B is different, each blade 23A will be connected to the blade 23B via the crossing member 25. Further, since all the blades 23A and 23B are connected via the crossing member 25 or between the blades 23A and 23B, the blades 23A and 23B having different numbers of blades can be manufactured, and the supporting strengths of these blades 23A and 23B can be sufficiently provided. It will be easier to secure.
  • the downstream end portion of the outer peripheral edge of the first blade 23A is cut out to the same position as the outer peripheral edge of the second blade 23B. This makes it easier to reduce the blowing resistance of the blade 23 and to sufficiently secure a gap between the blade 23 and surrounding articles. Further, the blade shapes of the blades 23A and 23B can be easily changed independently. As a result, it becomes easy to obtain cooling performance according to each of the calorific value of the alternator 11 and the calorific value of the engine 1.
  • the blade shape may be different between the first blade 23A and the second blade 23B. This also facilitates adjustments such as increasing the amount of air blown by the blades 23A and 23B, suppressing the air flow volume, and the like, and makes it easier to obtain more suitable cooling performance.
  • each of the above embodiments is merely an embodiment of the present invention, and can be arbitrarily modified and applied without departing from the spirit of the present invention.
  • the present invention is applied to the alternator 11 used for the engine generator is exemplified, it may be applied to the alternator used other than the engine generator.
  • the present invention may be applied to other than the alternator, or may be applied to an outer rotor type rotary machine used in various devices. For example, when various heat generating parts including an engine are arranged adjacent to the outer rotor type rotating machine, it becomes possible to effectively cool both the outer rotor type rotating machine and the surrounding heat generating parts. ..

Landscapes

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

Abstract

Machine tournante de type à rotor externe qui est avantageuse pour améliorer la performance de refroidissement d'éléments à l'intérieur et à l'extérieur d'un rotor.　Un ventilateur de refroidissement (21) comprend : des premières pales (23A) destinées à refroidir un rotor, et qui sont agencées sur la section périphérique externe d'un rotor (15) ; des secondes pales (23B) destinées à refroidir un stator, et qui sont reliées aux premières pales (23A) et sont agencées sur un côté d'un alternateur (11) dans la direction axiale par rapport au stator (13) ; et un élément traversant (25) qui fait office de séparation qui sépare les premières pales (23A) des secondes pales (23B).
PCT/JP2020/040313 2020-10-27 2020-10-27 Machine tournante de type à rotor externe WO2022091227A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/040313 WO2022091227A1 (fr) 2020-10-27 2020-10-27 Machine tournante de type à rotor externe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/040313 WO2022091227A1 (fr) 2020-10-27 2020-10-27 Machine tournante de type à rotor externe

Publications (1)

Publication Number Publication Date
WO2022091227A1 true WO2022091227A1 (fr) 2022-05-05

Family

ID=81382041

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2020/040313 WO2022091227A1 (fr) 2020-10-27 2020-10-27 Machine tournante de type à rotor externe

Country Status (1)

Country Link
WO (1) WO2022091227A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828566U (ja) * 1981-08-20 1983-02-24 株式会社東芝 回転電機
US4961016A (en) * 1989-08-09 1990-10-02 General Motors Corporation Dual-face cooling fan for a dynamoelectric machine
JPH0795745A (ja) * 1993-07-26 1995-04-07 Nippondenso Co Ltd 回転電機
JPH09327156A (ja) * 1996-06-04 1997-12-16 Denso Corp 回転電機
JP2001333558A (ja) * 2000-03-13 2001-11-30 Hitachi Ltd 車両用交流発電機と冷却ファンの製造方法
US20060250033A1 (en) * 2003-05-26 2006-11-09 Claudiu Vasilescu Rotating electrical machine comprising a ventilator
JP2009165213A (ja) * 2007-12-28 2009-07-23 Mabuchi Motor Co Ltd ロータ取付け冷却ファン
WO2014003065A1 (fr) * 2012-06-28 2014-01-03 三菱電機株式会社 Machine électrique tournante pour véhicule

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5828566U (ja) * 1981-08-20 1983-02-24 株式会社東芝 回転電機
US4961016A (en) * 1989-08-09 1990-10-02 General Motors Corporation Dual-face cooling fan for a dynamoelectric machine
JPH0795745A (ja) * 1993-07-26 1995-04-07 Nippondenso Co Ltd 回転電機
JPH09327156A (ja) * 1996-06-04 1997-12-16 Denso Corp 回転電機
JP2001333558A (ja) * 2000-03-13 2001-11-30 Hitachi Ltd 車両用交流発電機と冷却ファンの製造方法
US20060250033A1 (en) * 2003-05-26 2006-11-09 Claudiu Vasilescu Rotating electrical machine comprising a ventilator
JP2009165213A (ja) * 2007-12-28 2009-07-23 Mabuchi Motor Co Ltd ロータ取付け冷却ファン
WO2014003065A1 (fr) * 2012-06-28 2014-01-03 三菱電機株式会社 Machine électrique tournante pour véhicule

Similar Documents

Publication Publication Date Title
US6815849B2 (en) Magneto generator
US6124567A (en) Die cast housing for welding machine generator
JP6376981B2 (ja) 回転装置
US20180258947A1 (en) Axial fan
US20160003261A1 (en) Heat module
JP7038074B2 (ja) 回転電機およびロータシャフト
JP2003333801A (ja) 磁石発電機
JP4946534B2 (ja) 冷却装置
JP4869401B2 (ja) 車両用交流発電機
JP6355390B2 (ja) 回転電機
WO2022091227A1 (fr) Machine tournante de type à rotor externe
JP3294497B2 (ja) 交流発電機
JP3876912B2 (ja) 車両用交流発電機
JP6032056B2 (ja) 回転装置
JPWO2016117374A1 (ja) 送風機
JP3220488U (ja) インバータ一体型モータの冷却構造
KR101680101B1 (ko) 로터의 냉각향상용 유로가 형성된 터보컴파운드용 발전기 로터
JP6001434B2 (ja) アキシャルギャップ型発電体
JP5308234B2 (ja) 建設機械の冷却ファン装置
JPWO2020161784A1 (ja) 回転電機
JP2023048506A (ja) 発電機
JPH06169554A (ja) 全閉外扇形回転電機
US9071088B2 (en) Axial gap type generator
US20210067003A1 (en) Generator
JP5013012B1 (ja) 遠心ファン装置用ブレード、遠心ファン装置及びそれを備えた電子機器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20959745

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20959745

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP