JP2020072489A5 - - Google Patents
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- Publication number
- JP2020072489A5 JP2020072489A5 JP2018202647A JP2018202647A JP2020072489A5 JP 2020072489 A5 JP2020072489 A5 JP 2020072489A5 JP 2018202647 A JP2018202647 A JP 2018202647A JP 2018202647 A JP2018202647 A JP 2018202647A JP 2020072489 A5 JP2020072489 A5 JP 2020072489A5
- Authority
- JP
- Japan
- Prior art keywords
- motor
- resolver
- rotating shaft
- shield
- stator
- 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.)
- Granted
Links
- 230000002093 peripheral Effects 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 5
- 230000005415 magnetization Effects 0.000 claims description 4
- 239000000696 magnetic material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Description
本発明によるレゾルバ部のシールド構造は、モータ部にレゾルバ部を接続したレゾルバ部のシールド構造において、前記モータ部の回転軸に設けられたレゾルバロータと、前記モータ部のモータケース内の前記回転軸に設けられたモータロータと、前記レゾルバロータの外側に配設されたレゾルバステータと、前記モータ部のモータケースの内側に設けられ、前記回転軸を軸支するための軸受を有する壁部と、前記壁部と前記レゾルバステータとの間に設けられ、少なくとも3個の段部又は3個の弧状の曲部を有する磁性体シールドと、を備え、前記モータ部の前記壁部と前記レゾルバステータとの間に配設された前記磁性体シールドにより、前記モータ部のモータステータからの漏れ磁束による前記軸受の磁化を抑えるようにした構成であり、また、前記磁性体シールドは、最も前記回転軸に近い内周部が、前記軸受の外周部に接近し、かつ、前記回転軸の横断方向に沿って見た時、前記内周部と外周部とが互いに重合している構成である。 The shield structure of the resolver portion according to the present invention is the shield structure of the resolver portion in which the resolver portion is connected to the motor portion, the resolver rotor provided on the rotating shaft of the motor portion and the rotating shaft in the motor case of the motor portion. a motor rotor provided, said the resolver stator disposed outside of the resolver rotor, disposed inside the motor casing of the motor unit, the wall portion having a bearing for rotatably supporting the rotary shaft, A magnetic shield provided between the wall portion and the resolver stator and having at least three step portions or three arc-shaped curved portions, and the wall portion of the motor portion and the resolver stator The magnetic material shield arranged between the two is configured to suppress the magnetization of the bearing due to the leakage magnetic flux from the motor stator of the motor unit, and the magnetic material shield is located on the most rotating shaft. When the close inner peripheral portion approaches the outer peripheral portion of the bearing and is viewed along the transverse direction of the rotating shaft, the inner peripheral portion and the outer peripheral portion overlap each other.
本発明によるレゾルバ部のシールド構造は、以上のように構成されているため、次のような効果を得ることができる。
すなわち、モータ部にレゾルバ部を接続したレゾルバ部のシールド構造において、前記モータ部の回転軸に設けられたレゾルバロータと、前記モータ部のモータケース内の前記回転軸に設けられたモータロータと、前記レゾルバロータの外側に配設されたレゾルバステータと、前記モータ部のモータケースの内側に設けられ、前記回転軸を軸支するための軸受を有する壁部と、前記壁部と前記レゾルバステータとの間に設けられ、少なくとも3個の段部又は3個の弧状の曲部を有する磁性体シールドと、を備え、前記モータ部の前記壁部と前記レゾルバステータとの間に配設された前記磁性体シールドにより、前記モータ部のモータステータからの漏れ磁束による前記軸受の磁化を抑えるように構成したことにより、磁性体シールドの3個の段部又は曲部がレゾルバのステータの内側に会い、軸受の近傍にその先端が位置しているため、モータからの漏れ磁束による軸受の磁化を抑えることができる。
前記磁性体シールド板は、最も前記回転軸に近い内周部が、前記軸受の外周部に接近し、かつ、前記回転軸の横断方向に沿って見た時、前記内周部と外周部とが互いに重合していることにより、漏れ磁束が軸受を避けて通るため、軸受の磁性化を抑えることができ、軸受の寿命を延ばすことができる。
Since the shield structure of the resolver portion according to the present invention is configured as described above, the following effects can be obtained.
That is, in the shield structure of a resolver unit connected resolver unit to the motor unit, and a resolver rotor provided on a rotary shaft of the motor unit, and a motor rotor provided on the rotation shaft of the motor casing of the motor unit, A resolver stator disposed on the outside of the resolver rotor, a wall portion provided inside the motor case of the motor portion and having a bearing for axially supporting the rotating shaft, and the wall portion and the resolver stator. A magnetic shield provided between the motor portions and having at least three step portions or three arc-shaped curved portions, and is disposed between the wall portion of the motor portion and the resolver stator. By configuring the magnetic shield to suppress the magnetization of the bearing due to the leakage magnetic flux of the motor portion from the motor stator, the three steps or bends of the magnetic shield meet inside the stator of the resolver. Since the tip is located near the bearing, it is possible to suppress the magnetization of the bearing due to the leakage magnetic flux from the motor.
The magnetic shield plate has the inner peripheral portion and the outer peripheral portion when the inner peripheral portion closest to the rotating shaft approaches the outer peripheral portion of the bearing and is viewed along the transverse direction of the rotating shaft. Since the magnetic flux leaks from the bearings and avoids the bearings, the magnetism of the bearings can be suppressed and the life of the bearings can be extended.
Claims (2)
前記モータ部(2)の前記壁部(4)と前記レゾルバステータ(11)との間に配設された前記磁性体シールド(13)により、前記モータ部(2)のモータステータ(3)からの漏れ磁束(A)による前記軸受(6A)の磁化を抑えるように構成したことを特徴とするレゾルバ部のシールド構造。 In the shield structure of the resolver section in which the resolver section (12) is connected to the motor section (2), the resolver rotor (9) provided on the rotating shaft (7) of the motor section (2) and the motor section (2). and a motor rotor provided in the motor case (1) the rotational axis of the (7) (8), and a resolver stator disposed outside of the resolver rotor (9) (11), said motor unit (2 ), Which is provided inside the motor case (1) and has a bearing (6A) for supporting the rotating shaft (7), the wall portion (4), and the resolver stator (11). ), A magnetic shield (13) having at least three steps (50, 51, 52) or three arcuate bends (60, 61, 62).
From the motor stator (3) of the motor portion (2) by the magnetic material shield (13) disposed between the wall portion (4) of the motor portion (2) and the resolver stator (11). A shield structure of a resolver portion, which is configured to suppress the magnetization of the bearing (6A) due to the leakage magnetic flux (A) of the above.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018202647A JP7210003B2 (en) | 2018-10-29 | 2018-10-29 | Shield structure of resolver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018202647A JP7210003B2 (en) | 2018-10-29 | 2018-10-29 | Shield structure of resolver |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2020072489A JP2020072489A (en) | 2020-05-07 |
JP2020072489A5 true JP2020072489A5 (en) | 2021-10-07 |
JP7210003B2 JP7210003B2 (en) | 2023-01-23 |
Family
ID=70549692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018202647A Active JP7210003B2 (en) | 2018-10-29 | 2018-10-29 | Shield structure of resolver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP7210003B2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0965617A (en) * | 1995-08-25 | 1997-03-07 | Tamagawa Seiki Co Ltd | Motor with resolver |
JP2008160909A (en) | 2006-12-21 | 2008-07-10 | Nsk Ltd | Detector with built-in motor |
JP5927891B2 (en) | 2011-12-15 | 2016-06-01 | シンフォニアテクノロジー株式会社 | Rotation angle detector |
WO2014039954A1 (en) | 2012-09-07 | 2014-03-13 | Remy Technologies, Llc | Variable reluctance resolver having integral electromagnetic interference shield and rotary electric machine having same |
JP5850259B2 (en) | 2012-11-28 | 2016-02-03 | 株式会社デンソー | Rotating electric machine |
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2018
- 2018-10-29 JP JP2018202647A patent/JP7210003B2/en active Active
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