JP2022109530A5 - - Google Patents
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- JP2022109530A5 JP2022109530A5 JP2021004910A JP2021004910A JP2022109530A5 JP 2022109530 A5 JP2022109530 A5 JP 2022109530A5 JP 2021004910 A JP2021004910 A JP 2021004910A JP 2021004910 A JP2021004910 A JP 2021004910A JP 2022109530 A5 JP2022109530 A5 JP 2022109530A5
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- bearing
- electric machine
- rotary electric
- oil seal
- flow path
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- 230000002093 peripheral effect Effects 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims 1
Description
上記の課題を解決するために、本発明の一態様の回転電機は、ロータを固定し、液状媒体が流れる流路が形成されるロータハウジングと、前記ロータの内周側に配置されるステータと、前記ロータハウジングと前記ステータとの間に配置されるオイルシールと、を備えるアウターロータ型の回転電機であって、前記ロータハウジングは、前記ステータの外周側に配置される外周部と、前記ステータの内周側に配置される内周部と、前記外周部と前記内周部とを接続する接続部と、を含み、前記オイルシールは、前記ステータの内周面に固定される固定部と、前記内周部に摺動接触する接触部と、を有し、前記外周部、前記接続部及び前記内周部によって形成される前記流路を密封するアウターロータ型の回転電機である。 In order to solve the above problems, a rotating electrical machine according to one aspect of the present invention includes a rotor housing in which a rotor is fixed and a flow path for a liquid medium is formed; and a stator arranged on the inner peripheral side of the rotor. and an oil seal arranged between the rotor housing and the stator, wherein the rotor housing includes an outer peripheral portion arranged on the outer peripheral side of the stator; and a connecting portion connecting the outer peripheral portion and the inner peripheral portion, wherein the oil seal includes a fixed portion fixed to the inner peripheral surface of the stator , and a contact portion that slides in contact with the inner peripheral portion , and seals the flow path formed by the outer peripheral portion, the connection portion, and the inner peripheral portion .
Claims (11)
前記ロータコアの内周側に配置されるステータと、
前記ロータハウジングと前記ステータとの間に配置されるオイルシールと、を備えるアウターロータ型の回転電機であって、
前記ロータハウジングは、前記ステータの外周側に配置される外周部と、
前記ステータの内周側に配置される内周部と、
前記外周部と前記内周部とを接続する接続部と、を含み、
前記オイルシールは、前記ステータの内周面に固定される固定部と、前記内周部に摺動接触する接触部と、を有し、前記外周部、前記接続部及び前記内周部によって形成される前記流路を密封するアウターロータ型の回転電機。 a rotor housing in which the rotor core is fixed and a flow path is formed through which the liquid medium flows;
a stator arranged on the inner peripheral side of the rotor core;
An outer rotor type rotary electric machine comprising an oil seal arranged between the rotor housing and the stator,
The rotor housing includes an outer peripheral portion arranged on the outer peripheral side of the stator;
an inner peripheral portion arranged on the inner peripheral side of the stator;
a connecting portion that connects the outer peripheral portion and the inner peripheral portion,
The oil seal has a fixed portion that is fixed to the inner peripheral surface of the stator and a contact portion that is in sliding contact with the inner peripheral portion, and is formed by the outer peripheral portion, the connection portion, and the inner peripheral portion. An outer rotor type rotary electric machine that seals the flow path .
前記ロータハウジングの外周部と前記ステータの間に軸受を有し、
前記軸受は前記オイルシールで密封された前記流路内に設置され、
前記軸受の径が前記オイルシールの前記固定部の径よりも大きい回転電機。 In the rotary electric machine according to claim 1,
a bearing between the outer circumference of the rotor housing and the stator;
The bearing is installed in the flow path sealed by the oil seal,
A rotary electric machine in which the diameter of the bearing is larger than the diameter of the fixed portion of the oil seal.
前記ロータコアの径方向から見た時に、前記オイルシールが前記軸受と重なる位置に配置される回転電機。 In the rotary electric machine according to claim 2,
A rotary electric machine in which the oil seal is arranged at a position overlapping the bearing when viewed from the radial direction of the rotor core.
前記ステータに前記内周部と径方向に隣接する円筒状の突起を備えた回転電機。 In the rotary electric machine according to claim 1,
A rotary electric machine, wherein the stator has a cylindrical projection radially adjacent to the inner peripheral portion.
前記ステータに前記内周部と径方向に隣接する円筒状の凹部を備えた回転電機。 In the rotary electric machine according to claim 1,
A rotary electric machine, wherein the stator includes a cylindrical concave portion radially adjacent to the inner peripheral portion.
前記流路の液状媒体入口側の第１オイルシールの耐圧力よりも、前記流路の液状媒体出口側の第２オイルシールの耐圧力の方が低い回転電機。 In the rotary electric machine according to claim 1,
A rotary electric machine in which the withstand pressure of a second oil seal on the liquid medium outlet side of the flow path is lower than the withstand pressure of the first oil seal on the liquid medium inlet side of the flow path.
前記ロータコアを軸方向に挟み込むように、前記ロータハウジングの外周部と前記ステータの間に第１軸受及び第２軸受が配置され、
前記第１軸受よりも内周側に第１オイルシールが配置され、
前記第２軸受よりも内周側に第２オイルシールが配置され、
前記第１軸受の軸受内部と前記第２軸受の軸受内部は、前記第１オイルシールと前記第２オイルシールによって密封された前記流路の一部とされ、
前記流路の液状媒体入口が前記第１オイルシールと前記第１軸受の間の前記流路に配置され、
前記流路の液状媒体出口が前記第２オイルシールと前記第２軸受の間の前記流路に配置される回転電機。 In the rotary electric machine according to claim 1,
A first bearing and a second bearing are arranged between the outer peripheral portion of the rotor housing and the stator so as to sandwich the rotor core in the axial direction,
A first oil seal is arranged on the inner peripheral side of the first bearing,
A second oil seal is arranged on the inner peripheral side of the second bearing,
The bearing interior of the first bearing and the bearing interior of the second bearing are part of the flow path sealed by the first oil seal and the second oil seal,
a liquid medium inlet of the flow path is disposed in the flow path between the first oil seal and the first bearing;
A rotary electric machine, wherein a liquid medium outlet of the flow path is arranged in the flow path between the second oil seal and the second bearing.
前記第１オイルシールの径よりも、前記第２オイルシールの径の方が大きい回転電機。 In the rotary electric machine according to claim 7,
A rotary electric machine in which the diameter of the second oil seal is larger than the diameter of the first oil seal.
回転軸から前記液状媒体出口までの距離が、前記回転軸から前記液状媒体入口までの距離以上である回転電機。 In the rotary electric machine according to claim 7,
A rotary electric machine, wherein a distance from a rotating shaft to the liquid medium outlet is equal to or greater than a distance from the rotating shaft to the liquid medium inlet.
前記ロータコアを軸方向に挟み込むように、前記ロータハウジングの外周部と前記ステータの間に第１軸受及び第２軸受が配置され、
前記第１軸受よりも内周側に第１オイルシールが配置され、
前記第２軸受よりも内周側に第２オイルシールが配置され、
前記第１軸受の軸受内部と前記第２軸受の軸受内部は、前記第１オイルシールと前記第２オイルシールで密封された前記流路の一部とされ、前記流路の液状媒体入口と前記流路の液状媒体出口の何れか一方、または両方が前記第１軸受と前記第２軸受の間の前記流路に配置された回転電機。 In the rotary electric machine according to claim 1,
A first bearing and a second bearing are arranged between the outer peripheral portion of the rotor housing and the stator so as to sandwich the rotor core in the axial direction,
A first oil seal is arranged on the inner peripheral side of the first bearing,
A second oil seal is arranged on the inner peripheral side of the second bearing,
The bearing interior of the first bearing and the bearing interior of the second bearing are part of the flow path sealed by the first oil seal and the second oil seal, and the liquid medium inlet of the flow path and the A rotary electric machine in which one or both of liquid medium outlets of a flow path are arranged in the flow path between the first bearing and the second bearing.
さらに、バッテリと、前記バッテリの直流電力を交流電力に変換して、前記交流電力を前記回転電機に供給する電力変換装置と、を備え、前記回転電機のトルクが車輪に直接伝達される車両。 A vehicle comprising the rotary electric machine according to claim 1,
A vehicle further comprising a battery and a power conversion device that converts DC power of the battery into AC power and supplies the AC power to the rotating electric machine, wherein torque of the rotating electric machine is directly transmitted to wheels.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021004910A JP7425005B2 (en) | 2021-01-15 | 2021-01-15 | Rotating electrical machines and vehicles |
| PCT/JP2021/043553 WO2022153689A1 (en) | 2021-01-15 | 2021-11-29 | Rotary electric machine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021004910A JP7425005B2 (en) | 2021-01-15 | 2021-01-15 | Rotating electrical machines and vehicles |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2022109530A JP2022109530A (en) | 2022-07-28 |
| JP2022109530A5 true JP2022109530A5 (en) | 2023-07-05 |
| JP7425005B2 JP7425005B2 (en) | 2024-01-30 |
Family
ID=82447120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021004910A Active JP7425005B2 (en) | 2021-01-15 | 2021-01-15 | Rotating electrical machines and vehicles |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7425005B2 (en) |
| WO (1) | WO2022153689A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7181108B2 (en) * | 2019-01-31 | 2022-11-30 | 日立Astemo株式会社 | WHEEL DRIVE AND ELECTRIC VEHICLE INCLUDING THE SAME |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010041853A (en) | 2008-08-06 | 2010-02-18 | Mitsuba Corp | Electric motor |
| JP2014075879A (en) | 2012-10-03 | 2014-04-24 | Sim-Drive Co Ltd | Outer rotor in-wheel motor |
| CN110289720A (en) | 2019-05-27 | 2019-09-27 | 浙江万安科技股份有限公司 | The end face seal structure of hub motor rotor and stator |
-
2021
- 2021-01-15 JP JP2021004910A patent/JP7425005B2/en active Active
- 2021-11-29 WO PCT/JP2021/043553 patent/WO2022153689A1/en active Application Filing
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