JP2001218399A - Permanent magnet field synchronous motor and compressor using the same - Google Patents
Permanent magnet field synchronous motor and compressor using the sameInfo
- Publication number
- JP2001218399A JP2001218399A JP2000027304A JP2000027304A JP2001218399A JP 2001218399 A JP2001218399 A JP 2001218399A JP 2000027304 A JP2000027304 A JP 2000027304A JP 2000027304 A JP2000027304 A JP 2000027304A JP 2001218399 A JP2001218399 A JP 2001218399A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- rotor
- motor
- core
- synchronous motor
- 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
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
- Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Compressor (AREA)
Abstract
(57)【要約】
【課題】発明の目的は、必要最小限の設備で簡単に複数
機種の圧縮機駆動用電動機の回転子を製造できる方法を
提供することにある。
【解決手段】固定子鉄心と固定子鉄心に巻き回された固
定子巻線とを有する固定子と、回転子鉄心７と回転子鉄
心内に埋設された永久磁石４とを備えた永久磁石界磁同
期電動機において、回転子鉄心の外周部近傍に複数のス
ロット２を設け、複数のスロットの内周側に永久磁石用
の永久磁石挿入孔３を、ｎを整数として６ｎ個設け、２
極から多極の回転子鉄心を共用化できるようにした。
(57) Abstract: An object of the present invention is to provide a method capable of easily manufacturing a plurality of types of rotors of a compressor driving electric motor with minimum necessary equipment. A permanent magnet field includes a stator having a stator core, a stator winding wound around the stator core, and a rotor core and a permanent magnet embedded in the rotor core. In the magnetic synchronous motor, a plurality of slots 2 are provided in the vicinity of the outer peripheral portion of the rotor core, and 6n permanent magnet insertion holes 3 for permanent magnets are provided on the inner peripheral side of the plurality of slots, where n is an integer.
From pole to multi-pole rotor cores can be shared.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は永久磁石界磁同期電
動機およびそれを用いた圧縮機に係り、特に廉価で簡単
に形成できる永久磁石界磁同期電動機に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a permanent magnet field synchronous motor and a compressor using the same, and more particularly to a permanent magnet field synchronous motor which is inexpensive and can be formed easily.
【０００２】[0002]
【従来の技術】従来一般に採用されている永久磁石界磁
同期電動機駆動の圧縮機，すなわち、電動機とスクロー
ルとが一体で容器内に密封された圧縮機としては、ある
一定の回転速度で運転される一定速機と、別置のインバ
ータにより速度制御される可変速機とがよく知られてい
る。2. Description of the Related Art Conventionally employed compressors driven by permanent magnet field synchronous motors, that is, compressors in which an electric motor and a scroll are integrally sealed in a container, are operated at a certain rotation speed. A constant speed machine and a variable speed machine whose speed is controlled by a separate inverter are well known.
【０００３】一定速機では、インバータ装置を用いない
ことから、駆動源となる電動機には、回転子にかご型巻
線を設けた誘導電動機が用いられている。また、この場
合、所望の圧縮能力を得るため回転速度の関係から、通
常、２極の誘導電動機が用いられる。一方、可変速機で
は、インバータ駆動されるため、特開平８−８８９６３
号公報にも開示されているように４極の埋込磁石形同期
電動機が用いられるのが普通である。[0003] Since a constant speed machine does not use an inverter device, an induction motor having a squirrel-cage winding on a rotor is used as a motor as a drive source. In this case, a two-pole induction motor is usually used in order to obtain a desired compression capacity because of the relationship between the rotational speeds. On the other hand, a variable speed machine is driven by an inverter.
As disclosed in Japanese Patent Application Laid-Open Publication No. H11-115, a four-pole interior permanent magnet synchronous motor is generally used.
【０００４】[0004]
【発明が解決しようとする課題】このような永久磁石界
磁同期電動機を用いた圧縮機であると、一定速機、可変
速機それぞれに対応した電動機、すなわち、例えば２極
の誘導電動機および４極の永久磁石界磁同期電動機を各
々準備する必要がある。したがって、従来においては、
この種の電動機の製造に際し、一定速機用の固定子およ
び回転子、また可変速機用の固定子および回転子それぞ
れに対応した大掛かりな生産設備を準備しなければなら
なかった。In a compressor using such a permanent magnet field synchronous motor, a motor corresponding to each of a constant speed machine and a variable speed machine, that is, for example, a two-pole induction motor and a four-pole motor It is necessary to prepare pole permanent magnet field synchronous motors respectively. Therefore, conventionally,
In the manufacture of this type of motor, large-scale production equipment corresponding to the stator and rotor for a constant-speed machine and the stator and rotor for a variable-speed machine had to be prepared.
【０００５】本発明はこれに鑑みなされたもので、その
目的とするところは、電動機の磁極数に係りなく、必要
最小限の設備で、廉価に、かつ簡単に製造することがで
きる永久磁石界磁同期電動機およびこれを用いた圧縮機
を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a permanent magnet field which can be manufactured at a low cost and easily with a minimum necessary equipment regardless of the number of magnetic poles of a motor. An object of the present invention is to provide a magnetic synchronous motor and a compressor using the same.
【０００６】[0006]
【課題を解決するための手段】すなわち本発明は、固定
子鉄心およびこの鉄心に巻回された巻線を有する固定子
と、回転子鉄心およびこの回転子鉄心内に埋設された永
久磁石を有する回転子とを備えた永久磁石界磁同期電動
機において、前記回転子鉄心の外周部近傍に複数のスロ
ットを設けるとともに、このスロットの内周側に、前記
永久磁石を挿入保持する磁石挿入孔を６ｎ個（ｎは整
数）設け、この磁石挿入孔内の磁石極性を換える（着磁
する）ことにより、２極から多極の回転子に共用できる
ように形成し所期の目的を達成するようにしたものであ
る。That is, the present invention comprises a stator having a stator core and a winding wound around the core, a rotor core and a permanent magnet embedded in the rotor core. In the permanent magnet field synchronous motor provided with a rotor, a plurality of slots are provided in the vicinity of an outer peripheral portion of the rotor core, and a magnet insertion hole for inserting and holding the permanent magnet is formed on an inner peripheral side of the slot. By changing the polarity (magnetizing) of the magnets in the magnet insertion holes by providing them (n is an integer), they are formed so that they can be shared by two-pole to multi-pole rotors to achieve the intended purpose. It was done.
【０００７】また本発明は、固定子鉄心およびこの鉄心
に巻回された巻線を有する固定子と、回転子鉄心および
この回転子鉄心内に埋設された永久磁石を有する回転子
とを備えた永久磁石界磁同期電動機において、前記回転
子鉄心の外周部近傍に周方向に間隔をおいて複数のスロ
ットを設け、かつこのスロット内に導電性材料を埋設し
てかご型巻線を形成するとともに、このスロットの内周
側に、前記永久磁石を挿入保持する磁石挿入孔を６ｎ個
（ｎは整数）設け、この磁石挿入孔内の磁石極性を換え
ることにより、２極から多極の回転子に共用できるよう
に形成したものである。Further, the present invention includes a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the permanent magnet field synchronous motor, a plurality of slots are provided at intervals in the circumferential direction near the outer peripheral portion of the rotor core, and a cage-type winding is formed by burying a conductive material in the slots. On the inner peripheral side of the slot, 6n (n is an integer) magnet insertion holes for inserting and holding the permanent magnet are provided, and by changing the polarity of the magnets in the magnet insertion holes, a 2-pole to multi-pole rotor is provided. It is formed so that it can be commonly used.
【０００８】また本発明は、固定子鉄心およびこの鉄心
に巻回された巻線を有する固定子と、回転子鉄心および
この回転子鉄心内に埋設された永久磁石を有する回転子
とを備えた永久磁石界磁同期電動機において、前記回転
子鉄心の外周部近傍に周方向に間隔をおいて複数のスロ
ットを設けるとともに、このスロットの内周側に前記永
久磁石を挿入保持する磁石挿入孔を６個設け、かつ、２
極電動機のときは前記スロット内に導電性材料を埋設し
てかご型巻線を形成するとともに前記永久磁石を２極に
着磁し、かつ６極電動機のときは前記スロット内を空間
部に形成するとともに前記永久磁石を６極に着磁し、一
定速の時はかご型巻線を有する自己始動式の２極の永久
磁石界磁同期電動機とし、可変速の時は６極の永久磁石
同期電動機として、回転子鉄心を共用化できるようにし
たものである。Further, the present invention includes a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the permanent magnet field synchronous motor, a plurality of slots are provided in the vicinity of the outer peripheral portion of the rotor core at intervals in the circumferential direction, and a magnet insertion hole for inserting and holding the permanent magnet is provided on the inner peripheral side of the slot. And 2
In the case of a pole motor, a conductive material is embedded in the slot to form a cage winding, and the permanent magnet is magnetized to two poles. In the case of a six pole motor, the interior of the slot is formed as a space. At the same time, the permanent magnet is magnetized to six poles, and at a constant speed, a self-starting two-pole permanent magnet field synchronous motor having a cage winding is used. As the electric motor, the rotor core can be shared.
【０００９】また本発明は、固定子鉄心およびこの鉄心
に巻回された巻線を有する固定子と、回転子鉄心および
この回転子鉄心内に埋設された永久磁石を有する回転子
とを備えた永久磁石界磁同期電動機において、前記回転
子鉄心の外周部近傍に周方向に間隔をおいて複数のスロ
ットを設けるとともに、このスロットの内周側に前記永
久磁石を挿入保持する磁石挿入孔を１２個設け、かつ２
極電動機のときは前記スロット内に導電性材料を埋設し
てかご型巻線を形成するとともに前記永久磁石を２極に
着磁し、かつ６極電動機のときは前記スロット内を空間
部に形成するとともに前記永久磁石を６極に着磁し、一
定速の時はかご型巻線を有する自己始動式の２極の永久
磁石界磁同期電動機とし、可変速の時は６極の永久磁石
同期電動機として、回転子鉄心を共用化できるようにし
たものである。Further, the present invention comprises a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the permanent magnet field synchronous motor, a plurality of slots are provided in the vicinity of the outer periphery of the rotor core at intervals in the circumferential direction, and a magnet insertion hole for inserting and holding the permanent magnet is provided on the inner side of the slot. And 2
In the case of a pole motor, a conductive material is embedded in the slot to form a cage winding, and the permanent magnet is magnetized to two poles. In the case of a six pole motor, the interior of the slot is formed as a space. At the same time, the permanent magnet is magnetized to six poles, and at a constant speed, a self-starting two-pole permanent magnet field synchronous motor having a cage winding is used. As the electric motor, the rotor core can be shared.
【００１０】また本発明は、冷媒を吸い込んで圧縮し、
かつ吐出する圧縮機構部と、この圧縮機構部を駆動する
電動機部を備え、前記圧縮機構部を駆動する電動機に、
永久磁石界磁同期電動機を用いた圧縮機において、前記
電動機を、前述した永久磁石界磁同期電動機で構成する
ようにしたものである。[0010] The present invention also relates to a method of sucking and compressing a refrigerant,
And a compression mechanism for discharging, and an electric motor for driving the compression mechanism, and an electric motor for driving the compression mechanism,
In a compressor using a permanent magnet field synchronous motor, the motor is constituted by the aforementioned permanent magnet field synchronous motor.
【００１１】すなわちこのように形成された永久磁石界
磁同期電動機であると、回転子鉄心の外周部近傍に複数
のスロットと、その内周側に永久磁石挿入孔を、ｎを整
数として６ｎ個設けることで、磁極数が２極、４極、６
極、…、のように２極から多極の磁石回転子に併用で
き、低コストに複数種類の永久磁石界磁同期電動機を形
成することができる。また、回転子外周部近傍には、周
方向に沿って複数のスロットが配置されていることか
ら、このスロットを用いてかご型巻線を形成し、かつ永
久磁石を２極に着磁すれば、自己始動式の２極の永久磁
石界磁同期電動機の回転子を形成することができる。That is, in the permanent magnet field synchronous motor formed as described above, a plurality of slots are provided near the outer peripheral portion of the rotor core, and permanent magnet insertion holes are provided on the inner peripheral side thereof. By providing, the number of magnetic poles is 2, 4, 6
,... Can be used in combination with a 2-pole to multi-pole magnet rotor, and a plurality of types of permanent magnet field synchronous motors can be formed at low cost. In addition, since a plurality of slots are arranged along the circumferential direction in the vicinity of the outer periphery of the rotor, a cage winding is formed using these slots, and the permanent magnet is magnetized to two poles. Thus, a rotor of a self-starting two-pole permanent magnet field synchronous motor can be formed.
【００１２】また、回転子鉄心の外周部近傍に設けた複
数のスロットにかご型巻線を形成し、かつ永久磁石を２
極に着磁した回転子を適用した永久磁石界磁同期電動機
を使用すれば、一定速圧縮機とすることができ、また、
回転子鉄心の外周部近傍に設けた複数のスロット内を空
間部とし、かつ永久磁石を４極、６極に着磁した回転子
を適用した永久磁石界磁同期電動機を使用すれば、可変
速圧縮機とすることができ、非常に廉価に、かつ簡単に
この種の電動機および圧縮機を製造することができる。Further, a cage winding is formed in a plurality of slots provided in the vicinity of the outer peripheral portion of the rotor core, and two permanent magnets are formed.
If a permanent magnet field synchronous motor that uses a rotor magnetized on the poles is used, a constant speed compressor can be obtained,
Variable speed can be achieved by using a permanent magnet field synchronous motor in which a plurality of slots provided near the outer peripheral portion of the rotor core are used as spaces and a rotor in which permanent magnets are magnetized to 4 poles and 6 poles is used. It can be a compressor, and this kind of motor and compressor can be manufactured very inexpensively and easily.
【００１３】[0013]
【発明の実施の形態】以下図示した実施例に基づいて本
発明を詳細に説明する。図１および図２には、その永久
磁石界磁同期電動機が示されている。図中、１が回転子
であり、２が回転子鉄心に設けられた全閉スロット、３
が永久磁石挿入孔、４が永久磁石、６がクランクシャフ
ト、７が回転子鉄心、８がかご型巻線である。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 and 2 show the permanent magnet field synchronous motor. In the figure, 1 is a rotor, 2 is a fully closed slot provided in the rotor core, 3
Is a permanent magnet insertion hole, 4 is a permanent magnet, 6 is a crankshaft, 7 is a rotor core, and 8 is a cage winding.
【００１４】また、図８には、この電動機を用いた圧縮
機が断面で示されている。圧縮機構部は、固定スクロー
ル部材９の端板１１に直立する渦巻状ラップ１３と、旋
回スクロール部材１０の端板１２に直立する渦巻状ラッ
プ１４とが噛み合わされて形成され、旋回スクロール部
材１０が、クランクシャフト６によって旋回運動させら
れ、圧縮動作が行なわれる。FIG. 8 shows a cross section of a compressor using the electric motor. The compression mechanism is formed by meshing a spiral wrap 13 standing upright on the end plate 11 of the fixed scroll member 9 and a spiral wrap 14 standing upright on the end plate 12 of the orbiting scroll member 10. Is rotated by the crankshaft 6 to perform a compression operation.
【００１５】すなわち、固定スクロール部材９および旋
回スクロール部材１０によって形成される圧縮室１５
（１５ａ、１５ｂ……）のうち、最も外径側に位置して
いる圧縮室は、旋回運動に伴って両スクロール部材９、
１０の中心に向かって移動し、容積が次第に縮小する。
両圧縮室１５ａ、１５ｂが両スクロール部材９、１０の
中心近傍に達すると、両圧縮室１５内の圧縮ガスは圧縮
室１５と連通した吐出口１６から吐出される。吐出され
た圧縮ガスは、固定スクロール部材９およびフレーム１
７に設けられたガス通路（図示せず）を通ってフレーム
１７下部の圧縮容器１８内に至り、圧縮容器１８の側壁
に設けられた吐出パイプ１９から圧縮機外に排出され
る。That is, the compression chamber 15 formed by the fixed scroll member 9 and the orbiting scroll member 10
Of the (15a, 15b...), The compression chamber located closest to the outer diameter side has the two scroll members 9,
Moving towards the center of 10, the volume gradually decreases.
When the compression chambers 15a and 15b reach the vicinity of the centers of the scroll members 9 and 10, the compressed gas in the compression chambers 15 is discharged from the discharge port 16 communicating with the compression chambers 15. The discharged compressed gas is supplied to the fixed scroll member 9 and the frame 1.
The gas passes through a gas passage (not shown) provided to the inside of the compression container 18 below the frame 17, and is discharged out of the compressor from a discharge pipe 19 provided on a side wall of the compression container 18.
【００１６】また、本圧縮機では、圧力容器１８内に、
駆動用電動機２０が内封されており、一定速度、あるい
は別置のインバータ（図示せず）によって制御された回
転速度で回転し、圧縮動作が行なわれる。駆動用電動機
２０の下部には、油溜め部２１が設けられている。油溜
め部２１内の油は回転運動により生ずる圧力差によっ
て、クランクシャフト６内に設けられた油孔２２を通っ
て、旋回スクロール部材１０とクランクシャフト６との
摺動部、滑り軸受け２３等の潤滑に供される。In this compressor, the pressure vessel 18
The driving motor 20 is enclosed, and rotates at a constant speed or a rotation speed controlled by a separate inverter (not shown) to perform a compression operation. An oil reservoir 21 is provided below the driving motor 20. The oil in the oil sump 21 passes through an oil hole 22 provided in the crankshaft 6 due to a pressure difference generated by the rotational movement, and causes a sliding portion between the orbiting scroll member 10 and the crankshaft 6, a sliding bearing 23, and the like. Provided for lubrication.
【００１７】駆動用電動機２０は、固定子２６と回転子
１とで構成される永久磁石界磁同期電動機である。固定
子２６は、固定子鉄心２４とそれに巻き回された電機子
巻線２５とで構成され、回転子１は、クランクシャフト
６上に全閉スロット２、永久磁石４を埋設する永久磁石
挿入孔３および磁石間スリット５を有する回転子鉄心７
を設けて構成されている。ここで、永久磁石挿入孔３
は、ｎを整数として６ｎ個設けられており、本図はｎを
１とした場合が示されている。The driving motor 20 is a permanent magnet field synchronous motor composed of the stator 26 and the rotor 1. The stator 26 includes a stator core 24 and an armature winding 25 wound therearound. The rotor 1 has a fully-closed slot 2 and a permanent magnet insertion hole in which the permanent magnet 4 is embedded on the crankshaft 6. 3 and a rotor core 7 having a slit 5 between magnets
Is provided. Here, the permanent magnet insertion hole 3
Are provided as 6n, where n is an integer, and this figure shows a case where n is 1.
【００１８】図１は、圧縮機を可変速圧縮機として駆動
する場合の電動機の回転子構造であり、永久磁石４を６
極に着磁して、かつ全閉スロット２内は空間部としてい
る。このように回転子１を形成した場合、別置のインバ
ータ（図示せず）で圧縮機を可変速機として駆動する。FIG. 1 shows a rotor structure of an electric motor when the compressor is driven as a variable speed compressor.
The poles are magnetized, and the inside of the fully closed slot 2 is a space. When the rotor 1 is thus formed, the compressor is driven as a variable speed machine by a separate inverter (not shown).
【００１９】一方、図２は、圧縮機を一定速圧縮機とす
る場合の電動機の回転子構造であり、永久磁石４を２極
に着磁し、かつ回転子１の外周部近傍に設けられた複数
の全閉スロット２内に導電性材料を埋設してかご型巻線
８を形成している。On the other hand, FIG. 2 shows a rotor structure of an electric motor when the compressor is a constant speed compressor. The permanent magnet 4 is magnetized to two poles and provided near the outer periphery of the rotor 1. The cage winding 8 is formed by burying a conductive material in the plurality of fully closed slots 2.
【００２０】このようにすることで、回転子１は誘導電
流路を有する構造となり、駆動用電動機２０は自己始動
式の２極の永久磁石界磁同期電動機となるため、一定速
運転に対応できる。By doing so, the rotor 1 has a structure having an induced current path, and the driving motor 20 is a self-starting two-pole permanent magnet field synchronous motor, so that it can cope with constant speed operation. .
【００２１】図３〜図７には、本発明の他の実施例に係
る回転子の径方向断面形状が示されている。なお、これ
らの図において、図１〜図２、図８と同一物には同一の
符号を付したので、その詳細説明は省略する。この場合
にも、永久磁石挿入孔３は、ｎを整数として６ｎ個設け
られており、この図の場合は、ｎを２とした場合の例が
示されている。3 to 7 show radial cross sections of a rotor according to another embodiment of the present invention. In these figures, the same components as those shown in FIGS. 1 to 2 and 8 are denoted by the same reference numerals, and the detailed description thereof will be omitted. Also in this case, 6n permanent magnet insertion holes 3 are provided, where n is an integer. In this case, an example in which n is 2 is shown.
【００２２】図３および図４では、永久磁石４が４極
に、また図５では、６極にそれぞれ着磁されており、ま
た全閉スロット２内は空間部に形成されている。このよ
うに回転子を構成しても、前述した図１のものと同様に
可変速圧縮機の駆動用電動機の回転子とすることができ
る。In FIGS. 3 and 4, the permanent magnet 4 is magnetized to four poles, and in FIG. 5, it is magnetized to six poles, and the inside of the fully closed slot 2 is formed in a space. Even when the rotor is configured in this manner, it can be used as the rotor of the motor for driving the variable speed compressor in the same manner as in FIG. 1 described above.
【００２３】図６および図７には、永久磁石４が２極に
着磁され、かつ回転子１の外周部近傍に設けられた複数
の全閉スロット２内に導電性材料が埋設されてかご型巻
線８が形成された場合の回転子が示されており、このよ
うに回転子を構成しても、前述した図２のものと同様の
効果を得ることができる。FIGS. 6 and 7 show a cage in which a permanent magnet 4 is magnetized to two poles and a conductive material is buried in a plurality of fully closed slots 2 provided near the outer periphery of the rotor 1. The rotor in the case where the pattern winding 8 is formed is shown. Even if the rotor is configured in this manner, the same effect as that of FIG. 2 can be obtained.
【００２４】以上説明してきたようにこのように形成さ
れた永久磁石界磁同期電動機であると、回転子鉄心の外
周部近傍に複数のスロットと、その内周側に永久磁石挿
入孔を、ｎを整数として６ｎ個設けることで、磁極数が
２極、４極、６極、…、のように２極から多極の磁石回
転子に併用でき、すなわち、２極から多極の回転子鉄心
を共用化することができ、低コストに複数種類の永久磁
石界磁同期電動機を得ることができる。As described above, according to the permanent magnet field synchronous motor formed as described above, a plurality of slots are provided near the outer peripheral portion of the rotor core, and a permanent magnet insertion hole is provided on the inner peripheral side of the plurality of slots. Are provided as integers, so that the number of magnetic poles can be used in combination with a 2-pole to multi-pole magnet rotor such as 2-pole, 4-pole, 6-pole,..., That is, a 2-pole to multi-pole rotor core. And a plurality of types of permanent magnet field synchronous motors can be obtained at low cost.
【００２５】また、回転子鉄心の外周部近傍に設けた複
数のスロットにかご型巻線を形成し、かつ永久磁石を２
極に着磁した回転子を適用した永久磁石界磁同期電動機
を使用すれば、一定速圧縮機を得ることができ、かつ回
転子鉄心の外周部近傍に設けた複数のスロット内を空間
部とし、かつ永久磁石を４極、６極に着磁した回転子を
適用した永久磁石界磁同期電動機を使用すれば、可変速
圧縮機を得ることができるので、この永久磁石界磁同期
電動機を用いれば圧縮機の低コスト化を図ることが可能
となる。Further, a cage winding is formed in a plurality of slots provided in the vicinity of the outer peripheral portion of the rotor core, and two permanent magnets are formed.
By using a permanent magnet field synchronous motor that uses a rotor magnetized on the poles, a constant speed compressor can be obtained, and a plurality of slots provided near the outer periphery of the rotor core are used as spaces. A variable speed compressor can be obtained by using a permanent magnet field synchronous motor to which a rotor in which permanent magnets are magnetized to four poles and six poles can be used. Therefore, this permanent magnet field synchronous motor can be used. For example, the cost of the compressor can be reduced.
【００２６】[0026]
【発明の効果】以上説明してきたように本発明によれ
ば、磁極数が２極から多極の磁石回転子に併用でき、必
要最小限の設備で、廉価に、かつ簡単に形成することが
できる永久磁石界磁同期電動機を得ることができる。As described above, according to the present invention, the magnet rotor can be used together with a magnet rotor having two or more magnetic poles, and can be formed inexpensively and simply with minimum necessary equipment. A permanent magnet field synchronous motor that can be obtained can be obtained.
【図１】本発明の永久磁石界磁同期電動機の一実施例を
示す正面図。FIG. 1 is a front view showing one embodiment of a permanent magnet field synchronous motor of the present invention.
【図２】本発明の永久磁石界磁同期電動機の一実施例に
係る径方向断面図。FIG. 2 is a radial cross-sectional view according to an embodiment of the permanent magnet field synchronous motor of the present invention.
【図３】本発明の永久磁石界磁同期電動機の他の実施例
に係る径方向断面形状図。FIG. 3 is a radial cross-sectional view of another embodiment of the permanent magnet field synchronous motor according to the present invention.
【図４】本発明の永久磁石界磁同期電動機の他の実施例
に係る径方向断面形状図。FIG. 4 is a sectional view in a radial direction according to another embodiment of the permanent magnet field synchronous motor of the present invention.
【図５】本発明の永久磁石界磁同期電動機の他の実施例
に係る径方向断面形状図。FIG. 5 is a sectional view in a radial direction according to another embodiment of the permanent magnet field synchronous motor of the present invention.
【図６】本発明の永久磁石界磁同期電動機の他の実施例
に係る径方向断面形状図。FIG. 6 is a sectional view in a radial direction according to another embodiment of the permanent magnet field synchronous motor of the present invention.
【図７】本発明の永久磁石界磁同期電動機の他の実施例
に係る径方向断面形状図。FIG. 7 is a radial cross-sectional view of another embodiment of the permanent magnet field synchronous motor of the present invention.
【図８】本発明の対象とする圧縮機の縦断側面図。FIG. 8 is a longitudinal sectional side view of a compressor to which the present invention is applied.
１…回転子、２…全閉スロット、３…永久磁石挿入孔、
４…永久磁石、５…磁石間スリット、６…クランクシャ
フト、７…回転子鉄心、８…かご型巻線、９…固定スク
ロール部材、１０…旋回スクロール部材、１１，１２…
端版、１３，１４…ラップ、１５…圧縮室、１６…吐出
口、１７…フレーム、１８…圧力容器、１９…吐出パイ
プ、２０…駆動用電動機、２１…油溜部、２２…油孔、
２３…滑り軸受け、２４…固定子鉄心、２５…電機子巻
線、２６…固定子。1 ... rotor, 2 ... fully closed slot, 3 ... permanent magnet insertion hole,
4 ... permanent magnet, 5 ... slit between magnets, 6 ... crankshaft, 7 ... rotor core, 8 ... cage winding, 9 ... fixed scroll member, 10 ... orbiting scroll member, 11, 12 ...
End plate, 13, 14 wrap, 15 compression chamber, 16 discharge port, 17 frame, 18 pressure vessel, 19 discharge pipe, 20 drive motor, 21 oil reservoir, 22 oil hole,
23: sliding bearing, 24: stator core, 25: armature winding, 26: stator.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｈ０２Ｋ 19/10 Ｈ０２Ｋ 19/10 Ａ 21/14 21/14 Ｍ (72)発明者 高橋 身佳 茨城県日立市大みか町七丁目１番１号 株 式会社日立製作所日立研究所内 (72)発明者 吉川 富夫 東京都千代田区神田須田町一丁目23番地２ 株式会社日立空調システム内 (72)発明者 猿田 彰 東京都千代田区神田須田町一丁目23番地２ 株式会社日立空調システム内 (72)発明者 小国 研作 東京都千代田区神田須田町一丁目23番地２ 株式会社日立空調システム内 Ｆターム(参考） 3H003 AA05 AB03 AC01 CF04 5H002 AA07 AA09 AB07 AC06 AE08 5H619 AA01 BB01 BB06 PP02 PP06 PP08 5H621 AA01 AA03 GA01 GA12 HH01 HH10 5H622 AA01 AA03 CA02 CA12 CA13 CA14 CB01 CB05 CB06 PP10 PP11 ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) H02K 19/10 H02K 19/10 A 21/14 21/14 M (72) Inventor Mika Takahashi Hitachi, Ibaraki 7-1-1, Omika-cho, Hitachi, Ltd. Hitachi Research Laboratory, Hitachi, Ltd. (72) Inventor Tomio Yoshikawa 1-2-3, Kandasuda-cho, Chiyoda-ku, Tokyo Within Hitachi Air Conditioning Systems Co., Ltd. (72) Inventor Akira Saruta Tokyo 1-23-2 Kandasuda-cho, Chiyoda-ku, Tokyo Inside Hitachi Air Conditioning System Co., Ltd. (72) Inventor Kensaku 1-23-2 Kandasuda-cho, Chiyoda-ku, Tokyo F-term in Hitachi Air Conditioning System Co., Ltd. 3H003 AA05 AB03 AC01 CF04 5H002 AA07 AA09 AB07 AC06 AE08 5H619 AA01 BB01 BB06 PP02 PP06 PP08 5H621 AA01 AA03 GA01 GA12 HH01 HH10 5H622 AA01 AA03 CA02 CA12 CA13 CA14 CB01 CB05 CB06 PP10 PP11
Claims (5)
巻線を有する固定子と、回転子鉄心およびこの鉄心内に
埋設された永久磁石を有する回転子とを備えた永久磁石
界磁同期電動機において、 前記回転子鉄心の外周部近傍に複数のスロットを設ける
とともに、この複数のスロットの内周側に、前記永久磁
石を挿入保持する磁石挿入孔を６ｎ個（ｎは整数）設
け、この磁石挿入孔内の磁石極性を換えることにより、
２極から多極の回転子に共用できるように形成したこと
を特徴とする永久磁石界磁同期電動機。1. A permanent magnet field synchronization comprising a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the core. In the electric motor, a plurality of slots are provided in the vicinity of an outer peripheral portion of the rotor core, and 6n (n is an integer) magnet insertion holes for inserting and holding the permanent magnets are provided on the inner peripheral side of the plurality of slots. By changing the magnet polarity in the magnet insertion hole,
A permanent magnet field synchronous motor characterized in that it is formed so that it can be shared by two to multiple pole rotors.
巻線を有する固定子と、回転子鉄心およびこの回転子鉄
心内に埋設された永久磁石を有する回転子とを備えた永
久磁石界磁同期電動機において、 前記回転子鉄心の外周部近傍に周方向に間隔をおいて複
数のスロットを設け、かつこのスロット内に導電性材料
を埋設してかご型巻線を形成するとともに、このスロッ
トの内周側に、前記永久磁石を挿入保持する磁石挿入孔
を６ｎ個（ｎは整数）設け、この磁石挿入孔内の磁石極
性を換えることにより、２極から多極の回転子に共用で
きるように形成したことを特徴とする永久磁石界磁同期
電動機。2. A permanent magnet field comprising a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the magnetic synchronous motor, a plurality of slots are provided in the vicinity of the outer peripheral portion of the rotor core at intervals in the circumferential direction, and a cage type winding is formed by embedding a conductive material in the slots. 6n (n is an integer) magnet insertion holes for inserting and holding the permanent magnet are provided on the inner peripheral side of the rotor, and by changing the polarity of the magnets in the magnet insertion holes, the rotor can be shared by two to multi-pole rotors. A permanent magnet field synchronous motor characterized by being formed as described above.
巻線を有する固定子と、回転子鉄心およびこの回転子鉄
心内に埋設された永久磁石を有する回転子とを備えた永
久磁石界磁同期電動機において、 前記回転子鉄心の外周部近傍に周方向に間隔をおいて複
数のスロットを設けるとともに、このスロットの内周側
に前記永久磁石を挿入保持する磁石挿入孔を６個設け、
かつ、２極電動機のときは前記スロット内に導電性材料
を埋設してかご型巻線を形成するとともに前記永久磁石
を２極に着磁し、かつ６極電動機のときは前記スロット
内を空間部に形成するとともに前記永久磁石を６極に着
磁し、一定速の電動機および可変速の電動機の両者に、
回転子鉄心が共用できるようにしたことを特徴とする永
久磁石界磁同期電動機。3. A permanent magnet field comprising a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the magnetic synchronous motor, a plurality of slots are provided at intervals in the circumferential direction in the vicinity of the outer peripheral portion of the rotor core, and six magnet insertion holes for inserting and holding the permanent magnet are provided on the inner peripheral side of the slots.
In the case of a two-pole motor, a conductive material is embedded in the slot to form a cage winding, and the permanent magnet is magnetized to two poles. In the case of a six-pole motor, a space is formed in the slot. And the permanent magnet is magnetized to 6 poles, so that both the constant speed motor and the variable speed motor
A permanent magnet field synchronous motor characterized in that a rotor core can be shared.
巻線を有する固定子と、回転子鉄心およびこの回転子鉄
心内に埋設された永久磁石を有する回転子とを備えた永
久磁石界磁同期電動機において、 前記回転子鉄心の外周部近傍に周方向に間隔をおいて複
数のスロットを設けるとともに、このスロットの内周側
に前記永久磁石を挿入保持する磁石挿入孔を１２個設
け、かつ２極電動機のときは前記スロット内に導電性材
料を埋設してかご型巻線を形成するとともに前記永久磁
石を２極に着磁し、かつ６極電動機のときは前記スロッ
ト内を空間部に形成するとともに前記永久磁石を６極に
着磁し、一定速の時はかご型巻線を有する自己始動式の
２極の永久磁石界磁同期電動機とし、可変速の時は６極
の永久磁石同期電動機として、回転子鉄心を共用化でき
るようにしたことを特徴とする永久磁石界磁同期電動
機。4. A permanent magnet field comprising a stator having a stator core and a winding wound around the core, and a rotor having a rotor core and a permanent magnet embedded in the rotor core. In the magnetic synchronous motor, a plurality of slots are provided at intervals in the circumferential direction in the vicinity of the outer peripheral portion of the rotor core, and twelve magnet insertion holes for inserting and holding the permanent magnet are provided on the inner peripheral side of the slots. In the case of a two-pole motor, a conductive material is embedded in the slot to form a cage winding, and the permanent magnet is magnetized to two poles. In the case of a six-pole motor, a space is formed in the slot. The permanent magnet is magnetized to 6 poles, and is a self-starting 2-pole permanent magnet field synchronous motor having a cage winding at a constant speed, and a 6 pole permanent magnet at a variable speed. Rotor core as magnet synchronous motor Permanent magnet field 磁同 phase motor, characterized in that to allow shared.
圧縮機構部と、この圧縮機構部を駆動する電動機部を備
え、前記圧縮機構部を駆動する電動機に、永久磁石界磁
同期電動機を用いた圧縮機において、 前記電動機が、請求項１〜請求項４いずれかに記載の永
久磁石界磁同期電動機で構成されていることを特徴とす
る永久磁石界磁同期電動機を用いた圧縮機。5. A compression mechanism for sucking and compressing and compressing and discharging a refrigerant, and a motor for driving the compression mechanism, wherein a permanent magnet field synchronous motor is used for the motor for driving the compression mechanism. A compressor using a permanent magnet field synchronous motor, wherein the motor is configured by the permanent magnet field synchronous motor according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000027304A JP3632747B2 (en) | 2000-01-31 | 2000-01-31 | Permanent magnet field synchronous motor, method for manufacturing the same, and compressor using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000027304A JP3632747B2 (en) | 2000-01-31 | 2000-01-31 | Permanent magnet field synchronous motor, method for manufacturing the same, and compressor using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001218399A true JP2001218399A (en) | 2001-08-10 |
| JP3632747B2 JP3632747B2 (en) | 2005-03-23 |
Family
ID=18552892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000027304A Expired - Fee Related JP3632747B2 (en) | 2000-01-31 | 2000-01-31 | Permanent magnet field synchronous motor, method for manufacturing the same, and compressor using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3632747B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004015841A1 (en) * | 2002-08-09 | 2004-02-19 | Hitachi, Ltd. | Rotator of permanent magnet rotating electric machine |
| JP2005117771A (en) * | 2003-10-07 | 2005-04-28 | Hitachi Ltd | Permanent magnet synchronous motor and compressor using the same |
| JP2006333656A (en) * | 2005-05-27 | 2006-12-07 | Toshiba Industrial Products Manufacturing Corp | Rotor of rotary electric machine and rotary electric machine using same |
| JP2008178294A (en) * | 2008-04-07 | 2008-07-31 | Hitachi Appliances Inc | Permanent magnet type rotating electrical machine rotor |
| US7437882B2 (en) | 2000-02-14 | 2008-10-21 | Hitachi Air Conditioning Systems Co., Ltd. | Apparatus for driving a compressor and a refrigerating air conditioner |
| CN100456601C (en) * | 2003-12-08 | 2009-01-28 | 日产自动车株式会社 | Rotor of a rotating electrical machine |
| JP2010161883A (en) * | 2009-01-09 | 2010-07-22 | Hitachi Ltd | Permanent magnet type rotary electric machine |
| WO2021090387A1 (en) * | 2019-11-06 | 2021-05-14 | 三菱電機株式会社 | Rotor and rotating electric machine |
| US12237738B2 (en) | 2020-06-10 | 2025-02-25 | Makita Corporation | Electric work machine and production method for electric work machine |
-
2000
- 2000-01-31 JP JP2000027304A patent/JP3632747B2/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7437882B2 (en) | 2000-02-14 | 2008-10-21 | Hitachi Air Conditioning Systems Co., Ltd. | Apparatus for driving a compressor and a refrigerating air conditioner |
| US7768171B2 (en) | 2002-08-09 | 2010-08-03 | Hitachi, Ltd. | Rotor of permanent magnet rotating electric machine |
| WO2004015841A1 (en) * | 2002-08-09 | 2004-02-19 | Hitachi, Ltd. | Rotator of permanent magnet rotating electric machine |
| US7880358B2 (en) | 2002-08-09 | 2011-02-01 | Hitachi, Ltd. | Rotor of permanent magnet rotating electric machine |
| US7417348B2 (en) | 2002-08-09 | 2008-08-26 | Hitachi, Ltd. | Rotor of permanent magnet rotating electric machine |
| CN100553073C (en) * | 2002-08-09 | 2009-10-21 | 株式会社日立制作所 | rotating electrical machine |
| JP2005117771A (en) * | 2003-10-07 | 2005-04-28 | Hitachi Ltd | Permanent magnet synchronous motor and compressor using the same |
| WO2005046022A1 (en) * | 2003-10-07 | 2005-05-19 | Hitachi Air Conditioning Systems Co., Ltd. | Permanent-magnet synchronous motor and compressor using this |
| CN100456601C (en) * | 2003-12-08 | 2009-01-28 | 日产自动车株式会社 | Rotor of a rotating electrical machine |
| JP2006333656A (en) * | 2005-05-27 | 2006-12-07 | Toshiba Industrial Products Manufacturing Corp | Rotor of rotary electric machine and rotary electric machine using same |
| JP2008178294A (en) * | 2008-04-07 | 2008-07-31 | Hitachi Appliances Inc | Permanent magnet type rotating electrical machine rotor |
| JP2010161883A (en) * | 2009-01-09 | 2010-07-22 | Hitachi Ltd | Permanent magnet type rotary electric machine |
| WO2021090387A1 (en) * | 2019-11-06 | 2021-05-14 | 三菱電機株式会社 | Rotor and rotating electric machine |
| US12237738B2 (en) | 2020-06-10 | 2025-02-25 | Makita Corporation | Electric work machine and production method for electric work machine |
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|---|---|
| JP3632747B2 (en) | 2005-03-23 |
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