JPS60160356A - Axial gap type induction motor - Google Patents
Axial gap type induction motorInfo
- Publication number
- JPS60160356A JPS60160356A JP59014954A JP1495484A JPS60160356A JP S60160356 A JPS60160356 A JP S60160356A JP 59014954 A JP59014954 A JP 59014954A JP 1495484 A JP1495484 A JP 1495484A JP S60160356 A JPS60160356 A JP S60160356A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- sectional area
- inner ring
- outer ring
- iron core
- 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 title claims description 6
- 239000004020 conductor Substances 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002730 additional effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
- H02K17/20—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having deep-bar rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕本発明は家庭用洗濯機等に使用さ
れる小型の軸方向空隙型誘導電動機に関するものである
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a small axial gap type induction motor used in household washing machines and the like.
〔従来技術とその問題点〕従来のこの種の電動機を第１
図について説明する。■は軸受２と、固定子鉄心８およ
びコイル４を保持するモールドフレームでこの電動機の
固定子側を構成する。[Prior art and its problems] The conventional electric motor of this type was
The diagram will be explained. 3 constitutes the stator side of this motor with a molded frame that holds the bearing 2, the stator core 8, and the coil 4.
５は回転子フレームで、回転軸６に固定されたセンター
ボス？および固定子鉄心８と対向する回転子鉄心８を保
持する。回転軸６は軸受２によってモールドフレームｌ
に吊持され、固定子鉄心８と回転子鉄心８との間には軸
方向に空隙ｄを形成する。回転子鉄心８は第２図に示す
ようにリング状に形成され内リング９と外リングＩＯと
を有し、内外のリング間にスロツ） １１が設けられ、
該スロツ） １１内には導体（アルミ）が充填しである
。5 is the rotor frame, and is the center boss fixed to the rotating shaft 6? and holds the rotor core 8 facing the stator core 8. The rotating shaft 6 is connected to the mold frame l by the bearing 2.
A gap d is formed between the stator core 8 and the rotor core 8 in the axial direction. As shown in FIG. 2, the rotor core 8 is formed into a ring shape and has an inner ring 9 and an outer ring IO, and a slot 11 is provided between the inner and outer rings.
The slot 11 is filled with a conductor (aluminum).
ところで従来のこの種の電動機においては内リング９と
外リングｌＯに中および厚さの等しい（断面積の等しい
）アルミの帯板を使用しているため、第８図に示すよう
に、回転子の２次抵抗を形成するａ ＋ ｂ 十ｃの回
路においてａ部分はＣ部分よりも長さが短かいのでａ部
分（内リング）の抵抗がＣ部分（外リング）の抵抗より
も小さくなり、温度分布に不均一を生じ、局部的に温度
上昇する欠点がある。By the way, in the conventional electric motor of this type, aluminum strips of equal thickness (equal cross-sectional area) are used for the inner ring 9 and outer ring 10, so that the rotor In the circuit of a + b + c that forms the secondary resistance of , part a is shorter than part C, so the resistance of part a (inner ring) is smaller than the resistance of part C (outer ring), It has the disadvantage of causing non-uniform temperature distribution and causing a localized temperature rise.
〔発明の目的〕本発明は上記のような欠点のない軸方向
空隙型誘導電動機を提供することを目的とするものであ
る。[Object of the Invention] It is an object of the present invention to provide an axial gap type induction motor free from the above-mentioned drawbacks.
〔発明の構成〕本発明の軸方向空隙型誘導電動機は、固
定子鉄心と軸方向に所定の空隙をおいて対向するリング
状の回転子鉄心の内側に内リングを、外側に外リングを
はめこんだ構造において、前記外リングの断面積を前記
内リングの断面積よシも大にして内リングによって形成
される２次抵抗と外リングによって形成される２次抵抗
とを前記回転子鉄心に設けたスロットに形成される２次
抵抗と等しくすることを特徴とするものである。前述の
ように回転子の２次抵抗はａ部分の抵抗Ｒａと、ｂ部分
の抵抗ＲｈとＣ部分の抵抗Ｒ，ｃとによって定まる。し
たがってＲａ ＝ Ｒｂ ＝ ＩＬｃとすれば回転子の
２次抵抗は均一になる。本発明においてはＲａ ＝ Ｒ
ｃ とするために円弧長の大きい外リングＩＯの断面積
を円弧長の小さい内リング９の断面積よシも犬にするも
のであって、その比率は内外リングの直径の比率によっ
て定まる。なおＲｂはスロツ） １１の断面積とその長
さによって定まる。[Structure of the Invention] The axial gap type induction motor of the present invention has an inner ring fitted inside a ring-shaped rotor core facing a stator core with a predetermined gap in the axial direction, and an outer ring fitted outside. In the complex structure, the cross-sectional area of the outer ring is made larger than the cross-sectional area of the inner ring, and the secondary resistance formed by the inner ring and the secondary resistance formed by the outer ring are applied to the rotor core. It is characterized in that it is made equal to the secondary resistance formed in the provided slot. As described above, the secondary resistance of the rotor is determined by the resistance Ra of the section a, the resistance Rh of the section b, and the resistances R and c of the section C. Therefore, if Ra = Rb = ILc, the secondary resistance of the rotor becomes uniform. In the present invention, Ra = R
In order to obtain c, the cross-sectional area of the outer ring IO, which has a large arc length, is made to be much larger than the cross-sectional area of the inner ring 9, which has a small arc length, and the ratio is determined by the ratio of the diameters of the inner and outer rings. Note that Rb is determined by the cross-sectional area of the slot 11 and its length.
〔発明の効果〕以上述べたように本発明においては回転
子鉄心にはめこまれる内外のリングの内、外リングの断
面積を内リングの断面積よシも大にすることによって回
転子の２次抵抗の分布を均一にすることができ、その結
果温度分布を均一にする効果がある。さらに回転子にア
ルミのダイキャストをする際には湯口を外周部にとるた
め、外リングの断面積を犬にすることによって湯口を取
シはすす際のバー切れ等の問題を解決することができる
などの付加的効果もある０[Effects of the Invention] As described above, in the present invention, the cross-sectional area of the inner and outer rings fitted into the rotor core is made larger than the cross-sectional area of the inner ring. It is possible to make the distribution of secondary resistance uniform, which has the effect of making the temperature distribution uniform. Furthermore, when die-casting aluminum for the rotor, the sprue is placed on the outer periphery, so by making the cross-sectional area of the outer ring a dog, it is possible to solve problems such as bar breakage when removing the sprue. There are additional effects such as being able to
第１図：軸方向空隙型誘導電動機の構造を示す図
第２図：回転子鉄心の平面図
第８図：回転子鉄心の一部拡大平面図
■・・・モールドフレーム、２・・・軸受、８・・・固
定子鉄心、４・・・コイル、５・・・回転子フレーム、
６・・・回転軸、７・・・センターボス、８・・・回転
子鉄心、９・・・内リング、ｌＯ・・・外リング、１１
・・・スロットFigure 1: Diagram showing the structure of an axial gap type induction motor Figure 2: Plan view of the rotor core Figure 8: Partially enlarged plan view of the rotor core■...Mold frame, 2...Bearing , 8... Stator core, 4... Coil, 5... Rotor frame,
6... Rotating shaft, 7... Center boss, 8... Rotor core, 9... Inner ring, lO... Outer ring, 11
···slot
Claims (1)
グ状の回転子鉄心の内側に内リングを、外側に外リング
をはめこんだ構造において、前記外リングの断面積を前
記内リングの断面積よりも大にして内リングによって形
成される２次抵抗と外リングによって形成される２次抵
抗とを前記回転子鉄心に設けたスロットに形成される２
次抵抗と等しくすることを特徴とする軸方向空隙型誘導
電動機。In a structure in which an inner ring is fitted inside a ring-shaped rotor core facing the stator core with a predetermined gap in the axial direction, and an outer ring is fitted to the outside, the cross-sectional area of the outer ring is defined as the cross-sectional area of the inner ring. A secondary resistance formed by an inner ring and a secondary resistance formed by an outer ring, which are larger than the cross-sectional area, are formed in a slot provided in the rotor core.
An axial air gap type induction motor characterized in that the resistance is equal to the following resistance:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59014954A JPS60160356A (en) | 1984-01-30 | 1984-01-30 | Axial gap type induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59014954A JPS60160356A (en) | 1984-01-30 | 1984-01-30 | Axial gap type induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60160356A true JPS60160356A (en) | 1985-08-21 |
Family
ID=11875366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59014954A Pending JPS60160356A (en) | 1984-01-30 | 1984-01-30 | Axial gap type induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60160356A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63316656A (en) * | 1987-06-18 | 1988-12-23 | Haiteku Kenkyusho:Kk | Squirrel-cage induction flat motor |
| JP2019527530A (en) * | 2016-07-29 | 2019-09-26 | ジン−ジン エレクトリック テクノロジーズ カンパニー リミテッド | Integrated starter / generator integrated motor and hybrid power system |
-
1984
- 1984-01-30 JP JP59014954A patent/JPS60160356A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63316656A (en) * | 1987-06-18 | 1988-12-23 | Haiteku Kenkyusho:Kk | Squirrel-cage induction flat motor |
| JP2019527530A (en) * | 2016-07-29 | 2019-09-26 | ジン−ジン エレクトリック テクノロジーズ カンパニー リミテッド | Integrated starter / generator integrated motor and hybrid power system |
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