JPS6169358A - Induction motor - Google Patents
Induction motorInfo
- Publication number
- JPS6169358A JPS6169358A JP59189389A JP18938984A JPS6169358A JP S6169358 A JPS6169358 A JP S6169358A JP 59189389 A JP59189389 A JP 59189389A JP 18938984 A JP18938984 A JP 18938984A JP S6169358 A JPS6169358 A JP S6169358A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- disk
- slits
- rod
- induction 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.)
- Pending
Links
- 230000006698 induction Effects 0.000 title claims abstract description 25
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 239000012779 reinforcing material Substances 0.000 claims description 3
- 241000555745 Sciuridae Species 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 229910000576 Laminated steel Inorganic materials 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 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
- H02K17/168—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors having single-cage rotors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Induction Machinery (AREA)
Abstract
Description
【発明の詳細な説明】
［技術分￥ｆ］
本発明は、新規なディスク形誘導回転子を備えた誘導電
動機に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical portion ￥f] The present invention relates to an induction motor equipped with a novel disk-shaped induction rotor.
［従来技術］および［問題点］
第１図（Ａ）は、従来から知られているかご形誘導電動
機に含まれるかご形回転子の導体部分１を示す図である
（電気学会列、電気機械工学Ｉ、第２３４頁参照）。[Prior Art] and [Problems] FIG. 1(A) is a diagram showing a conductor portion 1 of a squirrel cage rotor included in a conventionally known squirrel cage induction motor (IEEJ Series, Electrical Machinery (See Engineering I, p. 234).
第１図（Ｂ）はかご形回転子の全体構造を示す図であり
、積層鋼板鉄心回転子２にかご形導体１を埋め込んで構
成したものである。また、３はシャフトを示す。FIG. 1(B) is a diagram showing the overall structure of a squirrel cage rotor, which is constructed by embedding squirrel cage conductors 1 in a laminated steel core rotor 2. Further, 3 indicates a shaft.
しかし、かかる誘導電動機の回転子にあっては、かご形
導体１が磁気回路を形成する主要な要素となっており、
且つ、積層鋼板鉄心など重量の大きな材質が含まれてい
るので、電動機全体の大きさが大型化すると共に回転子
の慣性に起因した加速特性の悪さが欠点となっていた。However, in the rotor of such an induction motor, the squirrel cage conductor 1 is the main element forming the magnetic circuit.
In addition, since the electric motor includes a heavy material such as a laminated steel core, the overall size of the electric motor becomes large and the acceleration characteristics are poor due to the inertia of the rotor.
［目的］
本発明の目的は、」−述の点に鑑み、小型・軒昂且つ始
動特性に優れた誘導電動機を提供することにある。[Objective] In view of the above points, an object of the present invention is to provide an induction motor that is small in size, has an eave, and has excellent starting characteristics.
［問題点を解決するための手段１
かかる目的を達成するために、本発明では、円板」二に
複数の棒状導体を有する回転子を具備したことを特徴と
するものである。[Means for Solving the Problems 1] In order to achieve the above object, the present invention is characterized in that a rotor having a plurality of rod-shaped conductors is provided on the disk.
この場合に、導電性円板に複数のスリットを設けて前記
棒状導体を形成するのが好適である。In this case, it is preferable to form the rod-shaped conductor by providing a plurality of slits in the conductive disk.
すなわち、スリットを導電性円板の中心から放射状に配
置するほか、導電性円板の法線方向に対して所定の角度
をなすようスリットを斜め配置して始動・運転特性を改
善することも可能である。In other words, in addition to arranging the slits radially from the center of the conductive disk, it is also possible to improve starting and operating characteristics by arranging the slits diagonally at a predetermined angle to the normal direction of the conductive disk. It is.
更に、スリットの長さを回転磁界発生手段の半径方向実
効長よりも大にしてうず電流積を減少させることが可能
である。Furthermore, it is possible to reduce the eddy current product by making the length of the slit larger than the effective length in the radial direction of the rotating magnetic field generating means.
イ なお、スリットに絶縁性補強材を充填し
て回転子の機械的強度を増すのが好適である。(a) It is preferable to fill the slits with an insulating reinforcing material to increase the mechanical strength of the rotor.
［実施例］ 以下、実施例に基づいて本発明の詳細な説明する。[Example] Hereinafter, the present invention will be described in detail based on Examples.
第２図は本発明の一実施例である軸方向界磁型ディスク
・モーターを示す断面構成図である。木口において、４
は後に詳細に説明するディスク形誘導回転子、５はハウ
ジング、６は３相固定子巻線、７は固定子巻線６を埋め
込むためのスロット（第３図において詳述する）を備え
た固定子鉄心、８はベアリング、９はシャフトを示す。FIG. 2 is a cross-sectional configuration diagram showing an axial field type disk motor which is an embodiment of the present invention. At Kiguchi, 4
5 is a housing, 6 is a three-phase stator winding, and 7 is a stationary member with a slot for embedding the stator winding 6 (described in detail in FIG. 3). The child core, 8 is a bearing, and 9 is a shaft.
なお、以下に述べる説明の都合」二、固定子鉄心７の半
径方向の幅はＬ”であるものとする。Furthermore, for the convenience of the following explanation, it is assumed that the width of the stator core 7 in the radial direction is L''.
第３図（Ａ）および（Ｂ）は、第２図に示した固定子鉄
心７の構成を詳細に示す拡大図である。木口より明らか
なように、固定子鉄心７には放射状に切り欠いたスロッ
ト２０を複数本設けてあり、その各々のスロット内には
固定子巻線８を埋設しである。3(A) and 3(B) are enlarged views showing in detail the structure of the stator core 7 shown in FIG. 2. FIG. As is clear from the drawing, the stator core 7 is provided with a plurality of radially cut out slots 20, and a stator winding 8 is buried in each slot.
第４図は、第２図に示したディスク形誘導回転子４の構
成を詳細に示す拡大図である。このディスク形誘導回転
子４は、導電性材料の円板に放射状のスリット３０を多
数設けて形成したものである。FIG. 4 is an enlarged view showing in detail the structure of the disk-shaped induction rotor 4 shown in FIG. 2. FIG. This disk-shaped induction rotor 4 is formed by providing a large number of radial slits 30 in a disk made of a conductive material.
かかる構成により、２木のスリット３０に挾まれている
導電性部分は棒状導体部ＣＨＤとなり、あたかも、かご
形回転子の導体部分（第１図（Ａ）参照）の如き機能を
果たす。すなわち、１木のスリット３０を挾んで２個の
棒状導体部ＣＨＤが対向する形となるので、回転磁界の
印加に伴って、図示するようなループ電流Ｉｃを流し、
もって回転用のトルクを生じさせるものである。従って
、２木のスリ・ントに挾まれた棒状導体部ＣＮ［ｌには
図示するようなうず電流Ｉｅが生じてうず電流積をもた
らすので、スリット３０の本数はできるだけ多く設ける
のが好適である。With this configuration, the conductive portion sandwiched between the two wooden slits 30 becomes a rod-shaped conductor portion CHD, and functions as if it were a conductor portion of a squirrel cage rotor (see FIG. 1(A)). That is, since the two rod-shaped conductor portions CHD face each other with a single slit 30 in between, a loop current Ic as shown in the figure is caused to flow as a rotating magnetic field is applied.
This produces rotational torque. Therefore, it is preferable to provide as many slits 30 as possible, since an eddy current Ie as shown in the figure is generated in the rod-shaped conductor portion CN [l held between two wooden slits, resulting in an eddy current product. .
本実施例では、ディスク形誘導回転子４の直径を１８０
センチメートル、スリット３０の幅を０．３ ミリメー
トル、スリット３０の本数を１４４本としである。In this embodiment, the diameter of the disk-shaped induction rotor 4 is 180 mm.
cm, the width of the slit 30 is 0.3 mm, and the number of slits 30 is 144.
但し、スリット３０を多数設けることにより、ディスク
形誘導回転子４自体の機械的強度が低化する場合もある
ので、かかる不都合を回避するためには、これらスリッ
ト中に樹脂などの絶縁性補強材を流し込み、これにより
強度を補強するようにすることも可能である。However, by providing a large number of slits 30, the mechanical strength of the disk-shaped induction rotor 4 itself may be reduced, so in order to avoid this disadvantage, it is necessary to install an insulating reinforcing material such as resin in these slits. It is also possible to reinforce the strength by pouring it.
また、スリ７）３０の長さは固定子鉄心など回転磁界発
生手段の実効長（第２図の“Ｌ ＩＩ参照）より長くし
ておくのが好適である。このことにより、固定子巻線か
ら生じる漏れ磁束に起因して生じる余分なうず電流を防
止し、うず電流積を減少させることができる。In addition, it is preferable that the length of the pickpocket 7) 30 is longer than the effective length of the rotating magnetic field generating means such as the stator core (see “L II” in Fig. 2). It is possible to prevent excess eddy current caused by leakage flux generated from the eddy current and reduce the eddy current product.
次に、第２図ないし第４図を参照して本実施例の動作を
説明する。Next, the operation of this embodiment will be explained with reference to FIGS. 2 to 4.
まず、３相固定子巻線６に３相電流を供給して回転磁界
を生じさせると、既述のループ電流Ｉｃがスリット３０
の外周を流れ、これにより電磁力が生じて回転子４に回
転トルクを生じさせる。First, when a three-phase current is supplied to the three-phase stator winding 6 to generate a rotating magnetic field, the loop current Ic described above flows through the slit 30.
flows around the outer periphery of the rotor 4, which generates an electromagnetic force and generates rotational torque in the rotor 4.
このようにしてディスク形誘導回転子４は回転し始める
が、始動時および運転中のトルク“むら゛を減少させる
ためには、第５図に示すように、スリット３０を法線方
向に対して「斜め」配置するのが好適である。これは、
従来がら誘導電動機に関して広く知られている「斜めス
ロワＩ・（ｓｋｅｗｅｄ ５ｌｏｔ）Ｊの原理を応用し
たものであり、このことにより、次同期運転など不都合
な現象を防止することができる。In this way, the disk-shaped induction rotor 4 begins to rotate, but in order to reduce the torque unevenness at startup and during operation, the slits 30 are inserted in the normal direction as shown in FIG. A “diagonal” arrangement is preferred. this is,
This is an application of the ``skewed thrower I/(skewed 5 lot) J'' principle, which has been widely known regarding conventional induction motors, and thereby prevents inconvenient phenomena such as next synchronous operation.
なお、ディスク形誘導回転子４の材質としては、銅、ア
ルミニウム、鉄など種々の導電性材料を用いることが可
能であるが、回転子自体の慣性あるいは損失を考慮して
、用途に応じて適宜選択して使用するのが好適である。Note that various conductive materials such as copper, aluminum, and iron can be used as the material for the disk-shaped induction rotor 4; It is preferable to select and use them.
殊に高出力を得る場合には、磁束密度を高めるための磁
性材料を選択して使用するのが好適である。In particular, when obtaining high output, it is preferable to select and use a magnetic material that increases magnetic flux density.
また、これまで述べてきた実施例においては、導電性円
板にレーザ等を照射してスリットを設け、これにより棒
状導体部を形成したが、これとは逆に第６図に示すよう
に、プリント技術等を用いて非導電性の円板４０上に放
射状の棒状導体４２を十分な強度をもって多数貼りつけ
、その棒状導体４２の端部を円形短絡環４４．４６を用
いて短絡するよう構成することも可能である。In addition, in the embodiments described so far, slits were formed by irradiating the conductive disk with a laser or the like, thereby forming a rod-shaped conductor part, but in contrast to this, as shown in FIG. A large number of radial rod-shaped conductors 42 are pasted with sufficient strength on a non-conductive disk 40 using printing technology or the like, and the ends of the rod-shaped conductors 42 are short-circuited using circular shorting rings 44 and 46. It is also possible to do so.
［効果］
以」−詳述したように、本発明によれば、誘導電動機の
回転子として棒状導体付きの円板を用いることができる
ので、回転子の重量を減らして加速特性を向−１；させ
た偏平な誘導電動機を得ることができる。[Effects] As described in detail, according to the present invention, a disk with a rod-shaped conductor can be used as the rotor of an induction motor, so the weight of the rotor can be reduced and the acceleration characteristics can be improved. ; A flat induction motor can be obtained.
また、本発明の一実施例によれば、」−記効果に加えて
、導電性ディスクにスリッＩ・加工をなすだけで回転子
を構成することができるので、製造工程を大幅に縮減し
た誘導電動機を得ることができる。Furthermore, according to an embodiment of the present invention, in addition to the effects mentioned above, the rotor can be constructed by simply processing the conductive disk with slits, so the manufacturing process can be significantly reduced. You can get an electric motor.
第１図（Ａ）および（Ｂ）は従来がら知られているかご
形回転子を示す図、
第２図は本発明の一実施例全体を示す断面構成図、
第３図（Ａ）および（Ｂ）は第２図に示した固定子鉄心
７の構成を詳細に示す拡大図、
第４図は第２図に示したディスク形誘導回転子４の構成
を詳細に示す拡大図、
第５図および第６図は本発明に係るディスク形誘導回転
子の別実施例を示す拡大図である。
１・・・かご形回転子の導体部分、
２・・・積層鋼板鉄心回転子、
３・・・シャフト、
４・・・ディスク形誘導回転子、
５・・・ハウジング、
６・・・固定子巻線、
７・・・固定子鉄心、
８・・・ベアリング、
８・・・シャフト、
２０・・・スロット、
３０・・・スリット、
４０・・・非導電性円板、
４２・・・棒状導体、
４４ 、４６・・・円形短絡環、
Ｉｃ・・・ループ電流、
Ｉｅ・・・うず電流、
Ｌ・・・固定子鉄心の幅。
特開昭Ｇｌ−６９３５８（４）
第６区1(A) and (B) are diagrams showing a conventionally known squirrel cage rotor, FIG. 2 is a cross-sectional configuration diagram showing an entire embodiment of the present invention, and FIG. 3(A) and ( B) is an enlarged view showing in detail the structure of the stator core 7 shown in FIG. 2, FIG. 4 is an enlarged view showing in detail the structure of the disk-shaped induction rotor 4 shown in FIG. 2, and FIG. and FIG. 6 is an enlarged view showing another embodiment of the disk-shaped induction rotor according to the present invention. DESCRIPTION OF SYMBOLS 1... Conductor part of squirrel cage rotor, 2... Laminated steel plate iron core rotor, 3... Shaft, 4... Disk type induction rotor, 5... Housing, 6... Stator Winding wire, 7... Stator core, 8... Bearing, 8... Shaft, 20... Slot, 30... Slit, 40... Non-conductive disk, 42... Rod shape Conductor, 44, 46... Circular short-circuit ring, Ic... Loop current, Ie... Eddy current, L... Width of stator core. Tokukai Sho Gl-69358 (4) Section 6
Claims (1)
ことを特徴とする誘導電動機。 ２）導電性円板に複数のスリットを設けて前記棒状導体
を形成したことを特徴とする特許請求の範囲第１項記載
の誘導電動機。 ３）前記スリットを前記導電性円板の中心から放射状に
配置したことを特徴とする特許請求の範囲第２項記載の
誘導電動機。 ４）前記導電性円板の法線方向に対して所定の角度をな
すよう前記スリットを斜め配置としたことを特徴とする
特許請求の範囲第２項記載の誘導電動機。 ５）前記スリットに絶縁性補強材を充填したことを特徴
とする特許請求の範囲第２項記載の誘導電動機。[Scope of Claims] 1) An induction motor characterized by comprising a rotor having a plurality of rod-shaped conductors on a disc. 2) The induction motor according to claim 1, wherein the rod-shaped conductor is formed by providing a plurality of slits in a conductive disk. 3) The induction motor according to claim 2, wherein the slits are arranged radially from the center of the conductive disk. 4) The induction motor according to claim 2, wherein the slit is arranged obliquely so as to form a predetermined angle with respect to the normal direction of the conductive disk. 5) The induction motor according to claim 2, wherein the slit is filled with an insulating reinforcing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189389A JPS6169358A (en) | 1984-09-10 | 1984-09-10 | Induction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59189389A JPS6169358A (en) | 1984-09-10 | 1984-09-10 | Induction motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6169358A true JPS6169358A (en) | 1986-04-09 |
Family
ID=16240485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59189389A Pending JPS6169358A (en) | 1984-09-10 | 1984-09-10 | Induction motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6169358A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739096A (en) * | 1993-03-09 | 1995-02-07 | Res Dev Corp Of Japan | Flat induction machine |
| JP2007100459A (en) * | 2005-10-07 | 2007-04-19 | Hiroshi Narahara | Multi-purpose portable tent |
| JP2007300751A (en) * | 2006-05-01 | 2007-11-15 | Denso Corp | Crankshaft direct-coupled rotating electric machine for vehicle |
-
1984
- 1984-09-10 JP JP59189389A patent/JPS6169358A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0739096A (en) * | 1993-03-09 | 1995-02-07 | Res Dev Corp Of Japan | Flat induction machine |
| JP2007100459A (en) * | 2005-10-07 | 2007-04-19 | Hiroshi Narahara | Multi-purpose portable tent |
| JP2007300751A (en) * | 2006-05-01 | 2007-11-15 | Denso Corp | Crankshaft direct-coupled rotating electric machine for vehicle |
| JP4743528B2 (en) * | 2006-05-01 | 2011-08-10 | 株式会社デンソー | Crankshaft direct connection type rotating electrical machine for vehicles |
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