WO2017145313A1 - Machine dynamo-électrique - Google Patents

Machine dynamo-électrique Download PDF

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Publication number
WO2017145313A1
WO2017145313A1 PCT/JP2016/055566 JP2016055566W WO2017145313A1 WO 2017145313 A1 WO2017145313 A1 WO 2017145313A1 JP 2016055566 W JP2016055566 W JP 2016055566W WO 2017145313 A1 WO2017145313 A1 WO 2017145313A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
rotating electrical
electrical machine
fan
unit
Prior art date
Application number
PCT/JP2016/055566
Other languages
English (en)
Japanese (ja)
Inventor
康太郎 塩田
丈典 馬場
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 PCT/JP2016/055566 priority Critical patent/WO2017145313A1/fr
Publication of WO2017145313A1 publication Critical patent/WO2017145313A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
    • 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
    • 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

Definitions

  • the present invention relates to a rotating electrical machine including a heat dissipation component.
  • high-frequency sensors such as encoders for detecting the rotational position, such as servo motors
  • high frequency noise has been applied from the outside like rotating electrical machines driven by inverters.
  • the importance of noise countermeasures for rotating electrical machines is increasing as the number of rotating electrical machines equipped with CPUs and ASICs for signal processing increases.
  • the conventional rotating electric machine is configured as described above, and when the cooling fan having the electric motor is separated by a partition in the metal container in which the rotating electric machine is stored, the weight of the rotating electric machine itself is increased and the heat dissipation performance is increased. There is a problem of incurring deterioration. On the contrary, when the separation is not performed by the partition walls, noise is emitted through the power source of the fan or the input / output port of the electronic device, which has a problem in that it adversely affects the rotating electrical machine control.
  • the present invention has been made to solve the above-described problems, and without damaging the insulation performance, by simply installing a heat lane as a heat transfer section, it is possible to exhibit high heat dissipation performance.
  • the purpose is to shield noise from an electromagnetic noise source without installing a shielding partition wall that leads to a significant increase in the weight of the rotating electrical machine itself.
  • a plurality of heat transfer portions that are in contact with the core back portion that constitutes the stator and that have heat conductivity and are solid or hollow inside, and heat transfer that has heat conductivity A thermal diffusion part joined to the part.
  • a heat transfer portion is inserted or brought into contact with the core back portion, and cooling by heat radiation from the outer frame of the rotating electrical machine or forced air cooling by a fan is performed on the heat diffusion portion joined to the heat transfer portion.
  • the heat diffusing unit is installed so as to face the noise source and the fan or position detecting unit that becomes the noise propagation path, and at least the heat transfer unit or the heat diffusing unit is grounded. While improving, the tolerance with respect to electromagnetic noise can be strengthened, As a result, it becomes possible to provide a rotary electric machine with a small size and high output.
  • FIG. 1 is a structural diagram of a heat dissipation component showing Example 1 of the present invention. It is sectional drawing of the rotary electric machine which attached the thermal radiation component which shows Example 1 of this invention. It is a shape schematic diagram of the stator core which shows Example 1 of this invention. It is sectional drawing of the rotary electric machine which attached the thermal radiation component which shows Example 1 of this invention. It is a shape schematic diagram of the stator core which shows Example 1 of this invention. It is a structural diagram of the heat dissipation component showing Example 2 of the present invention. It is sectional drawing of the rotary electric machine which attached the heat radiating component which shows Example 2 of this invention.
  • FIG. 6 is a structural diagram of a heat dissipation component showing Embodiment 4 of the present invention.
  • FIG. 6 is a structural diagram of a heat dissipation component showing Embodiment 4 of the present invention.
  • FIG. 1 is a structural diagram of a heat dissipation component showing Embodiment 1 of the present invention.
  • the heat dissipating component 1 is composed of a heat lane 2 which is a rod-like and elongated inside and a plurality of solid heat transfer parts and a disk-like heat diffusion part 3, and on one side of the heat diffusion part 3, along the outer periphery One end of the heat lane 2 is joined at equal intervals.
  • Both the heat lane 2 and the thermal diffusion unit 3 have good thermal conductivity, and are made of, for example, a material that shields radio waves such as copper, or a metal material that can be magnetically shielded such as an iron-based material.
  • the heat diffusion part 3 shown in FIG. 1 has a disk shape, but may have a structure in which a metal net is stretched in a cup-like or annular hollow part.
  • FIG. 2 is a cross-sectional view of a rotating electrical machine to which a heat dissipating component showing Embodiment 1 of the present invention is attached.
  • the rotating electrical machine 10 includes a stator 53 that is wound, a rotor 51 that rotates inside the stator 53, and a rotating shaft 52 that is attached to the rotor 51.
  • Reference numerals 56 a and 56 b denote bearings for holding the rotating shaft 52.
  • the stator 53 is energized and controlled by the drive driver 54. As a result, the rotor 51 rotates and the rotating shaft 52 rotates.
  • the child core 11 corresponds to a main heat dissipation path for the generated heat.
  • the plurality of rod-shaped heat lanes 2 are attached to the inside of the stator core 11 and serve to guide the generated heat to the outside of the rotating electrical machine 10.
  • the heat guided to the outside of the rotating electrical machine 10 is transmitted to the heat diffusing unit 3 joined to the heat lane 2, and the heat diffusing unit 3 serves as a heat radiating plate.
  • the heat diffusing unit 3 is installed at a position facing the fan 13 driven by the fan power supply 55 and is forcibly cooled by the fan 13.
  • the heat diffusing unit 3 is installed at a position facing the encoder 12 that is a position detecting unit that functions as a sensor of the rotating electrical machine 10, and the stator core 11 and the heat lane 2 are grounded.
  • an electromagnetic shield is formed around the encoder 12 by the heat diffusion unit 3. By forming this electromagnetic shielding, electromagnetic radiation noise caused by the clock of the encoder 12 is prevented from propagating to the fan power supply 55 and released to the outside of the rotating electrical machine 10, or conversely, noise propagated from the fan power supply 55 is Can be prevented.
  • a ground terminal is provided in the heat diffusing section 3, and this ground terminal is connected to the ground of the rotating electrical machine 10, the ground of the heat lane 2, the ground of the encoder 12, and the ground of the fan 13, respectively. Also good.
  • the heat lane 2 is attached so as to penetrate the end cover 14 provided at the opposite end of the rotating electrical machine 10, but in order to prevent water and dust from entering the rotating electrical machine 10, By sealing the penetration portion where the heat lane 2 penetrates the end cover 14 with a rubber bush or resin, it is possible to configure the fully-closed rotating electrical machine 10.
  • FIG. 3 is a schematic diagram of the shape of the stator core showing the first embodiment of the present invention.
  • the stator 53 is configured by connecting a plurality of stator cores 11 in an annular shape.
  • the stator core 11 includes a core back portion 25 corresponding to the outer peripheral portion of the stator 53 and a teeth portion 26 to which a winding is applied. In the first embodiment of the present invention, the magnetic path of the core back portion 25 is blocked.
  • a hole 21 for inserting the heat lane 2 is provided in a portion that is not present. Since a gap generated when the heat lane 2 is inserted into the hole 21 becomes a thermal resistance, the thermal resistance value can be reduced by sealing the gap with a resin or grease having a good thermal conductivity.
  • the heat lane 2 is a hollow conduit and is made of a soft material
  • one end of the heat lane 2 is closed, the inside of the pipe line is pressurized from the other end, and the heat lane 2 itself is expanded and deformed.
  • the gap generated when the heat lane 2 is inserted into the hole 21 can be sealed, and the heat lane 2 can be fixed to the stator core 11.
  • FIG. 4 is a cross-sectional view of a rotating electrical machine to which a heat dissipating component showing Embodiment 1 of the present invention is attached.
  • the fan 13 is installed on the side surface of the rotating electrical machine 10 along the direction of the rotating shaft 52 in order to shorten the overall length of the rotating electrical machine 10.
  • the heat lane 2 is a rod-shaped metal material
  • the heat diffusing unit 3 is placed on the front surface of the fan 13 by bending the heat lane 2.
  • the heat lane 2 is inserted into the hole 21 provided in the core back portion 25, the air diffusion portion 3 connected to the heat lane 2 is subjected to forced air cooling by the fan 13, and the heat diffusion portion 3 is further connected to the noise source and Since it is installed so as to face the fan 13 and the encoder 12 serving as a noise propagation path, and at least the heat lane 2 or the heat diffusion unit 3 is grounded, the heat radiation is improved and the resistance to electromagnetic noise is enhanced. As a result, it is possible to provide a rotating electric machine that is small and has high output.
  • FIG. 6 is a structural diagram of a heat dissipating component showing Embodiment 2 of the present invention.
  • the heat dissipating component 100 is composed of a plurality of rod-like and elongate heat lanes 21 and a disk-shaped heat diffusing portion 31, and one end of the heat lane 21 is joined to one side of the heat diffusing portion 31 along the outer periphery at equal intervals. Is done.
  • Each of the heat lanes 21 has a hollow cylindrical shape having a through hole inside, and the through hole of the hollow portion penetrates through the heat diffusing portion 31.
  • FIG. 7 is a sectional view of a rotating electrical machine to which a heat dissipating component showing Embodiment 2 of the present invention is attached. As shown in FIG. 7, an opening 15 exists in a part of the load side opposite to the mounting side of the heat dissipating component 100 that is the anti-load side of the rotating electrical machine 10. By moving the air inside, the plurality of stator cores 11 constituting the stator 53 can be cooled more efficiently, and the same effect as in the first embodiment of the present invention can be obtained.
  • FIG. FIG. 8 is a cross-sectional view of a rotating electrical machine to which a heat dissipation component showing Embodiment 3 of the present invention is attached.
  • the heat diffusing unit 3 is installed at a position facing the fan 13 driven by the fan power supply 55 and is forcibly cooled by the fan 13, but in the third embodiment of the present invention, As shown in FIG. 8, the heat diffusion part 32 is directly joined to the outer frame 71 of the rotating electrical machine 10.
  • the heat of the heat diffusing unit 32 can be transmitted to the outer frame 71, the stator 53 can be cooled, and the fan 13 can be made unnecessary.
  • the heat diffusion unit 32 is grounded, an electromagnetic shield is formed around the encoder 12, and the same effect as in the first embodiment of the present invention can be obtained.
  • the heat lane 2 is attached so as to penetrate the inside of the stator core 11, but as shown in FIG. 9, the heat lane 22 is attached so as to be in contact with the end face on the counterload side of the stator 53.
  • the same effects as those of the first embodiment of the present invention can be obtained.
  • Example 4 10 and 11 are structural diagrams of heat dissipating parts showing Embodiment 4 of the present invention.
  • the heat dissipating component 101 is composed of a plurality of rod-shaped and elongated heat lanes 23 and a disk-shaped heat diffusing portion 33, and one end of the heat lane 23 is joined at equal intervals along the outer periphery on one surface of the heat diffusing portion 33. Is done.
  • Each of the heat lanes 23 has a hollow cylindrical shape having a through hole inside, and the through hole of the hollow portion penetrates to the heat diffusion portion 33. As shown in FIGS.
  • a hollow heat lane 23 is attached in advance to the inside of the plurality of stator cores 11 constituting the stator 53, and the adjacent heat lanes 23 are alternately connected to the pipe connection member 41 and the heat diffusion.
  • the pipes are formed by connecting the adjacent heat lanes 23 provided in the inside of the section 33 with a cavity 42 that connects the adjacent heat lanes 23.
  • the joining is performed by welding or pipe screws, and by flowing cooling water, a refrigerant, or the like in the formed pipe line, the plurality of stator cores 11 constituting the stator 53 can be cooled. The same effect as in the first embodiment can be obtained.
  • the servo motor having the encoder 12 is taken as an example, but electronic devices such as a tension control motor having a torque sensor and a so-called intelligent motor having a switching element and a drive driver are mounted.
  • electronic devices such as a tension control motor having a torque sensor and a so-called intelligent motor having a switching element and a drive driver are mounted.
  • the present invention can also be applied to a rotating electric machine having a noise source such as a rotating electric machine or a brush of a DC motor.

Abstract

La machine dynamoélectrique (10) selon la présente invention résout les problèmes classiques de détérioration de performance de rayonnement et de réduction de performance d'isolation dues à une augmentation du poids de la machine dynamoélectrique et sa structure, et comprend : un stator (53) ayant une partie arrière de noyau (25) comportant une pluralité de trous (21) ; et un ventilateur (13). La machine dynamoélectrique (10) est configurée en ce qu'elle comprend : une pluralité de voies thermiques solides ou creuses électro-et thermoconductrices (2) présentant chacune une forme allongée de type tige qui sont insérées dans les trous (21) ; et une unité de diffusion thermique (3) qui est reliée aux voies thermiques (2) et disposé pour être tournée vers le ventilateur (13).
PCT/JP2016/055566 2016-02-25 2016-02-25 Machine dynamo-électrique WO2017145313A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/055566 WO2017145313A1 (fr) 2016-02-25 2016-02-25 Machine dynamo-électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/055566 WO2017145313A1 (fr) 2016-02-25 2016-02-25 Machine dynamo-électrique

Publications (1)

Publication Number Publication Date
WO2017145313A1 true WO2017145313A1 (fr) 2017-08-31

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PCT/JP2016/055566 WO2017145313A1 (fr) 2016-02-25 2016-02-25 Machine dynamo-électrique

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WO (1) WO2017145313A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3114199A1 (fr) * 2020-09-17 2022-03-18 Alstom Transport Technologies Moteur électrique ferroviaire comprenant un dispositif de refroidissement et véhicule ferroviaire associé

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713946A (en) * 1980-06-25 1982-01-25 Hitachi Ltd Rotary electric machine
JPH07123646A (ja) * 1993-10-19 1995-05-12 Yamaha Motor Co Ltd 電動モーターの冷却構造
JPH10174371A (ja) * 1996-12-13 1998-06-26 Matsushita Electric Ind Co Ltd 電動機の冷却装置
JP2003070208A (ja) * 2001-08-29 2003-03-07 Yaskawa Electric Corp Ａｃサーボモータ
JP2006353067A (ja) * 2005-06-20 2006-12-28 Asmo Co Ltd モータの制御回路装置及びその製造方法、並びにモータの制御回路装置を備えたモータ
JP2008289244A (ja) * 2007-05-16 2008-11-27 Toyota Motor Corp 回転電機の冷却構造
JP2008543266A (ja) * 2005-05-31 2008-11-27 ヴァレオ エキプマン エレクトリク モトゥール 回転電気機器のための電子モジュール
JP2009038940A (ja) * 2007-08-03 2009-02-19 Nissan Motor Co Ltd モータの冷却装置および冷却方法並びにその冷却装置付きモータを搭載した車両
JP2010268541A (ja) * 2009-05-12 2010-11-25 Mitsubishi Electric Corp 回転電機

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5713946A (en) * 1980-06-25 1982-01-25 Hitachi Ltd Rotary electric machine
JPH07123646A (ja) * 1993-10-19 1995-05-12 Yamaha Motor Co Ltd 電動モーターの冷却構造
JPH10174371A (ja) * 1996-12-13 1998-06-26 Matsushita Electric Ind Co Ltd 電動機の冷却装置
JP2003070208A (ja) * 2001-08-29 2003-03-07 Yaskawa Electric Corp Ａｃサーボモータ
JP2008543266A (ja) * 2005-05-31 2008-11-27 ヴァレオ エキプマン エレクトリク モトゥール 回転電気機器のための電子モジュール
JP2006353067A (ja) * 2005-06-20 2006-12-28 Asmo Co Ltd モータの制御回路装置及びその製造方法、並びにモータの制御回路装置を備えたモータ
JP2008289244A (ja) * 2007-05-16 2008-11-27 Toyota Motor Corp 回転電機の冷却構造
JP2009038940A (ja) * 2007-08-03 2009-02-19 Nissan Motor Co Ltd モータの冷却装置および冷却方法並びにその冷却装置付きモータを搭載した車両
JP2010268541A (ja) * 2009-05-12 2010-11-25 Mitsubishi Electric Corp 回転電機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3114199A1 (fr) * 2020-09-17 2022-03-18 Alstom Transport Technologies Moteur électrique ferroviaire comprenant un dispositif de refroidissement et véhicule ferroviaire associé
EP3972094A1 (fr) * 2020-09-17 2022-03-23 ALSTOM Transport Technologies Moteur électrique ferroviaire comprenant un dispositif de refroidissement et véhicule ferroviaire associé

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