JP2016171646A5 - - Google Patents
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- JP2016171646A5 JP2016171646A5 JP2015049072A JP2015049072A JP2016171646A5 JP 2016171646 A5 JP2016171646 A5 JP 2016171646A5 JP 2015049072 A JP2015049072 A JP 2015049072A JP 2015049072 A JP2015049072 A JP 2015049072A JP 2016171646 A5 JP2016171646 A5 JP 2016171646A5
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- JP
- Japan
- Prior art keywords
- permanent magnet
- electrical machine
- rotating electrical
- type rotating
- rotor
- 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.)
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- 230000002093 peripheral Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims 5
- 239000012530 fluid Substances 0.000 claims 3
- 238000007599 discharging Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 229910000529 magnetic ferrite Inorganic materials 0.000 claims 1
- 229910000859 α-Fe Inorganic materials 0.000 claims 1
- 230000000875 corresponding Effects 0.000 description 1
Description
上記課題を解決するため、本発明による永久磁石式回転電機は、固定子鉄心と、固定子鉄心に設けられる電機子巻線とを有する固定子と、回転子鉄心と、回転子鉄心に埋設される、極数分の永久磁石とを有し、空隙を介して前記固定子と対向する回転子と、を備えるものであって、永久磁石は、回転子の径方向内側へ向かって凸となる円弧状の中央部と、中央部の両端部から回転子の外周面へ向って延びる直線状の複数の側部と、を有する。
In order to solve the above problems, a permanent magnet type rotating electrical machine according to the present invention is embedded in a stator having a stator core and armature windings provided on the stator core, the rotor core, and the rotor core. A permanent magnet corresponding to the number of poles and facing the stator via a gap, the permanent magnet being convex toward the radially inner side of the rotor. It has an arcuate central portion and a plurality of linear side portions extending from both ends of the central portion toward the outer peripheral surface of the rotor.
Claims (10)
回転子鉄心と、前記回転子鉄心に埋設される、極数分の永久磁石とを有し、空隙を介して前記固定子と対向する回転子と、
を備える永久磁石式回転電機において、
前記永久磁石は、
前記回転子の径方向内側へ向かって凸となる円弧状の中央部と、
前記中央部の両端部から前記回転子の外周面へ向って延びる直線状の複数の側部と、
を有することを特徴とする永久磁石式回転電機。 A stator having a stator core and armature windings provided on the stator core;
A rotor core, the Ru embedded in the rotor core, and a permanent magnet having poles minutes, a rotor facing the stator with a gap,
In a permanent magnet type rotating electrical machine comprising:
The permanent magnet is
An arcuate central portion that protrudes radially inward of the rotor;
A plurality of linear side portions extending from both ends of the central portion toward the outer peripheral surface of the rotor;
A permanent magnet type rotating electrical machine characterized by comprising:
前記中央部および前記複数の側部は互いに分割されていることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 1,
The permanent magnet type rotating electrical machine, wherein the central portion and the plurality of side portions are divided from each other.
前記複数の側部は２個の側部であることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 2,
The plurality of side portions are two side portions.
前記複数の側部は、前記回転子の外周面へ向って開いていることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 1,
The plurality of side portions are open toward the outer peripheral surface of the rotor.
前記中央部おける前記回転子の内周面に最も近い端面と前記回転子の内周面との径方向距離をＬ１とし、前記端面における前記中央部の径方向の幅をＬ２とすると、Ｌ１≦Ｌ２であることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 1,
When the radial distance between the end surface closest to the inner peripheral surface of the rotor and the inner peripheral surface of the rotor in the central portion is L1, and the radial width of the central portion in the end surface is L2, L1 ≦ A permanent magnet type rotating electrical machine characterized by being L2.
前記中央部において前記端面とは径方向反対側に位置する面と前記回転子の外周面との径方向距離をＬ３とすると、Ｌ１≦Ｌ２＜Ｌ３であることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 5,
A permanent magnet type rotating electrical machine characterized in that L1 ≦ L2 <L3, where L3 is a radial distance between a surface located on the opposite side to the end surface in the central portion and the outer peripheral surface of the rotor. .
前記回転子鉄心は、前記複数の側部における径方向端部と対向する前記回転子の外周部に設けられる複数の凹部を有することを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 1,
The rotor iron core has a plurality of concave portions provided in an outer peripheral portion of the rotor facing a radial end portion of the plurality of side portions.
前記凹部の底面は、前記複数の側部における径方向端部の幅方向に平行であることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 7,
A permanent magnet type rotating electrical machine, wherein bottom surfaces of the recesses are parallel to a width direction of radial end portions of the plurality of side portions.
前記永久磁石は、フェライト磁石からなることを特徴とする永久磁石式回転電機。 In the permanent magnet type rotating electrical machine according to claim 1,
The permanent magnet type rotating electrical machine, wherein the permanent magnet is made of a ferrite magnet.
前記作動流体の容積を縮小する圧縮機構と、
前記圧縮機構を駆動する永久磁石式回転電機と、
前記圧縮機構により圧縮された前記作動流体を圧縮容器外に排出する吐出パイプと、
を備える圧縮機において、
前記永久磁石式回転電機は、
固定子鉄心と、前記固定子鉄心に設けられる電機子巻線とを有する固定子と、
回転子鉄心と、前記回転子鉄心に埋設される、極数分の永久磁石とを有し、空隙を介して前記固定子と対向する回転子と、
を備え、
前記永久磁石は、
前記回転子の径方向内側へ向かって凸となる円弧状の中央部と、
前記中央部の両端部から前記回転子の外周面へ向って延びる直線状の複数の側部と、
を有することを特徴とする圧縮機。 A suction pipe for supplying a working fluid gas into the compression vessel;
A compression mechanism for reducing the volume of the working fluid;
A permanent magnet type rotating electrical machine that drives the compression mechanism;
A discharge pipe for discharging the working fluid compressed by the compression mechanism to the outside of compression chamber,
A compressor comprising:
The permanent magnet type rotating electrical machine is:
A stator having a stator core and armature windings provided on the stator core;
A rotor core, the Ru embedded in the rotor core, and a permanent magnet having poles minutes, a rotor facing the stator with a gap,
With
The permanent magnet is
An arcuate central portion that protrudes radially inward of the rotor;
A plurality of linear side portions extending from both ends of the central portion toward the outer peripheral surface of the rotor;
The compressor characterized by having.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015049072A JP6470598B2 (en) | 2015-03-12 | 2015-03-12 | Permanent magnet type rotating electric machine and compressor using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015049072A JP6470598B2 (en) | 2015-03-12 | 2015-03-12 | Permanent magnet type rotating electric machine and compressor using the same |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016171646A JP2016171646A (en) | 2016-09-23 |
| JP2016171646A5 true JP2016171646A5 (en) | 2017-08-03 |
| JP6470598B2 JP6470598B2 (en) | 2019-02-13 |
Family
ID=56982701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015049072A Active JP6470598B2 (en) | 2015-03-12 | 2015-03-12 | Permanent magnet type rotating electric machine and compressor using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6470598B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102509696B1 (en) * | 2017-12-20 | 2023-03-15 | 삼성전자주식회사 | IPM BLDC Motor |
| JP2021122163A (en) * | 2020-01-31 | 2021-08-26 | 日立金属株式会社 | Rotary electric machine |
| JP7381914B2 (en) * | 2021-11-12 | 2023-11-16 | ダイキン工業株式会社 | Rotor, motor, compressor and air conditioner |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5891089B2 (en) * | 2012-03-29 | 2016-03-22 | 株式会社日立産機システム | Permanent magnet synchronous machine |
| JP2014155415A (en) * | 2013-02-13 | 2014-08-25 | Jtekt Corp | Embedded magnet rotor and method of manufacturing embedded magnet rotor |
| JP6002617B2 (en) * | 2013-04-05 | 2016-10-05 | 株式会社日立産機システム | Permanent magnet synchronous machine |
| JP2014241705A (en) * | 2013-06-12 | 2014-12-25 | 株式会社ジェイテクト | Magnet embedded rotor |
-
2015
- 2015-03-12 JP JP2015049072A patent/JP6470598B2/en active Active
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