JPH0226196Y2 - - Google Patents
Info
- Publication number
- JPH0226196Y2 JPH0226196Y2 JP1983172015U JP17201583U JPH0226196Y2 JP H0226196 Y2 JPH0226196 Y2 JP H0226196Y2 JP 1983172015 U JP1983172015 U JP 1983172015U JP 17201583 U JP17201583 U JP 17201583U JP H0226196 Y2 JPH0226196 Y2 JP H0226196Y2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- air holes
- air hole
- air
- 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.)
- Expired
Links
- 230000000149 penetrating effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Description
【考案の詳細な説明】
〔考案の技術分野〕
この考案は電動機回転子に関するもので、特に
回転子に設ける風穴の改良に係るものである。[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an electric motor rotor, and particularly relates to an improvement in air holes provided in the rotor.
第１図は実願昭57−730号に記載された電動機
回転子の鉄心構造を示すもので、図において、１
は回転子鉄心、２は回転子鉄心１の外周部に軸方
向に貫通して設けた回転子溝、３は軸孔１ａの周
りに軸方向に貫通して設けた風穴である。この風
穴３の形状は実施例の場合では円形状のものが示
してあるが、長方形あるいは正方形であつてもよ
い。また通常、回転子溝２の数は偶数個（実施例
では34個）であるので、磁路のバランスを考慮し
て風穴３の数も偶数個（４個）とするのが通例で
ある。
Figure 1 shows the iron core structure of the motor rotor described in Utility Application No. 1987-730.
2 is a rotor core, 2 is a rotor groove provided axially penetrating the outer circumference of the rotor core 1, and 3 is an air hole provided axially penetrating around the shaft hole 1a. Although the shape of the air hole 3 is circular in the embodiment, it may be rectangular or square. Further, since the number of rotor grooves 2 is usually an even number (34 in the embodiment), the number of air holes 3 is also usually an even number (4) in consideration of the balance of the magnetic path.
上記回転子の一般的な製法としては、まず第２
図に示すように鉄心ガイドピン４をガイドとして
パンチングされた薄板５を積層し、次にスキユー
（斜溝）付け行程を経、アルミダイキヤスト回転
子においてはダミー軸入れ後ダイキヤストとな
る。 The general manufacturing method for the above rotor is as follows:
As shown in the figure, the punched thin plates 5 are stacked using the core guide pin 4 as a guide, and then a skew (diagonal groove) forming process is performed, and in the case of an aluminum die-cast rotor, a dummy shaft is inserted and then die-cast.
上記のように従来の回転子は、鉄心の揃え時、
積層後風穴が貫通するようにガイドピン４への薄
板５の挿入時注意する必要がある。たとえば第３
のように回転子溝数28風穴数４の場合、溝と風穴
の相対位置関係はいずれの風穴に対しても同一と
なるので、いずれかの風穴で管理すればよい。と
ころで第１図に示すように回転子溝数34、風穴数
４の場合を考えてみると、溝２ａと風穴３ａの相
対位置関係は、溝２ｃと風穴３ｃとのそれと同一
であるが、溝２ｂと風穴３ｂあるいは溝２ｄと風
穴３ｄの相対位置関係とは異なる。したがつてこ
の場合、任意に選択できる風穴の数は２個とな
り、積層時の管理が甚だ煩雑となる。すなわち溝
数N1と風穴数N2の最大公約数の風穴数でしか管
理できないことになる。風穴数N2を溝数N1の公
約数とすれば、全て風穴で管理できることになる
が、風穴は通風や冷却などの目的のため、あるい
は特殊な例として密閉形圧縮機用の回転子におい
ては冷媒ガスの通路として設けられており、所要
の面積が必要となり、この面積を確保し、かつ磁
路のアンバランスを最小にする意味からもこのよ
うな風穴数の選択ができ得ない場合が多い。 As mentioned above, when aligning the iron core of a conventional rotor,
Care must be taken when inserting the thin plate 5 into the guide pin 4 so that the air holes pass through after lamination. For example, the third
In the case where the rotor has 28 grooves and 4 air holes, the relative positional relationship between the grooves and the air holes is the same for all air holes, so it is sufficient to manage them using any one of the air holes. By the way, if we consider the case where the rotor has 34 grooves and 4 air holes as shown in FIG. 1, the relative positional relationship between the grooves 2a and the air holes 3a is the same as that between the grooves 2c and the air holes 3c, but the grooves The relative positional relationship between the groove 2b and the air hole 3b or the groove 2d and the air hole 3d is different. Therefore, in this case, the number of air holes that can be arbitrarily selected is two, and management during stacking becomes extremely complicated. In other words, the number of air holes can only be managed using the greatest common divisor of the number of grooves N1 and the number of air holes N2 . If the number of air holes N 2 is a common divisor of the number of grooves N 1 , then everything can be managed with air holes, but air holes are used for purposes such as ventilation and cooling, or as a special example, in the rotor of a hermetic compressor. are provided as passages for refrigerant gas, and a required area is required, and in order to secure this area and minimize the imbalance of the magnetic path, it may not be possible to select the number of air holes in this manner. many.
この考案は上記のような従来のものの欠点を除
去するためになされたもので、回転子鉄心に形成
する風穴を形状の異なる異種の組合わせとしたこ
とにより、鉄心積層時の管理を容易にし、作業の
短縮および安価な電動機回転子を提供することを
目的としている。
This idea was made in order to eliminate the drawbacks of the conventional ones as mentioned above, and by combining different types of air holes formed in the rotor core with different shapes, it is easy to manage the core stacking process. The purpose is to shorten the work and provide an inexpensive electric motor rotor.
以下この考案の一実施例を図について説明す
る。第４図において、１は回転子鉄心、２はこの
鉄心１の外周部に軸方向に貫通して設けた回転子
溝、３は鉄心軸孔１ａの周りに軸方向に貫通した
風穴で、この風穴３はこの例では円形状と正方形
状との２種の組合せからできている。すなわち、
この考案においては、回転子溝数をN1、風穴数
をN2としたとき、ある１つの風穴と対向する溝
との相対位置関係を基準として全ての風穴につい
て対向する溝との関係が同一の場合は同一形状の
風穴とし、異なる場合は異種形状の風穴となるよ
うに風穴の形状を変えるようにする。このため風
穴形状の種類の数N3はN3＝N2／（N1，N2の最
大公約数）となる。つまり第４図の例においては
N1＝34，N2＝４，N1，N2の最大公約数が２あ
るのでN3＝２となり、よつて２種類の風穴を必
要とすればよい。
An embodiment of this invention will be described below with reference to the drawings. In Fig. 4, 1 is a rotor core, 2 is a rotor groove provided axially penetrating the outer circumference of the core 1, and 3 is an air hole axially penetrating around the core shaft hole 1a. In this example, the air hole 3 is made of a combination of two shapes: a circular shape and a square shape. That is,
In this invention, when the number of rotor grooves is N 1 and the number of air holes is N 2 , the relationship of all air holes with the opposing groove is the same based on the relative positional relationship between one air hole and the opposing groove. In the case of , the shape of the wind hole is changed to have the same shape, and in the case of different shapes, the shape of the wind hole is changed so that the shape of the wind hole is different. Therefore, the number of types of air hole shapes N 3 is N 3 = N 2 / (greatest common divisor of N 1 and N 2 ). In other words, in the example of Figure 4,
N 1 = 34, N 2 = 4, and since the greatest common divisor of N 1 and N 2 is 2, N 3 = 2, and therefore two types of air holes are required.
なお、実施例は回転子溝数が34、風穴数が４の
場合について示したが、全ての回転子溝数、風穴
数の場合についても適用できる。また風穴形状と
しては円形や正方形以外の形状とすることであつ
てもよい。 In addition, although the example is shown for the case where the number of rotor grooves is 34 and the number of air holes is 4, it is also applicable to cases where the number of rotor grooves and air holes is all. Further, the shape of the air hole may be other than circular or square.
以上のようにこの考案による電動機用回転子
は、回転子鉄心の外周部に設けられた回転子溝
と、この回転子溝の内側に設けられた風穴とを備
え、この風穴を基準にして回転子鉄心を積層する
ものにおいて、前記風穴は、ラジアル方向に対向
する前記回転子溝との相対位置関係に応じて形状
を変え、前記相対位置関係が同一な風穴は同一形
状とし、この同一形状の風穴を基準にして回転子
鉄心を積層する構成としたので、回転子鉄心積層
時のコア揃えを容易にするという効果を奏する。
As described above, the electric motor rotor according to this invention has a rotor groove provided on the outer periphery of the rotor core and an air hole provided inside the rotor groove, and rotates with reference to this air hole. In the device in which the child core is laminated, the shape of the air hole changes depending on the relative positional relationship with the rotor groove facing in the radial direction, and the air holes with the same relative positional relationship have the same shape, and the air holes of the same shape have the same shape. Since the rotor core is laminated with reference to the air holes, it is possible to easily align the cores when laminating the rotor core.
第１図および第３図は従来の回転子鉄心の平面
図、第２図は鉄心製造を説明するための外観図、
第４図はこの考案による回転子鉄心の平面図であ
る。
１……回転子鉄心、２……回転子溝、３……風
穴。なお、図中、同一符号は同一又は相当部分を
示す。
Figures 1 and 3 are plan views of conventional rotor cores, Figure 2 is an external view for explaining core manufacturing;
FIG. 4 is a plan view of the rotor core according to this invention. 1...Rotor core, 2...Rotor groove, 3...Air hole. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
この回転子溝の内側に設けられた風穴とを備え、
この風穴を基準にして回転子鉄心を積層する電動
機用回転子において、前記風穴は、ラジアル方向
に対向する前記回転子溝との相対位置関係に応じ
て形状を変え、前記相対位置関係が同一な風穴は
同一形状とし、この同一形状の風穴を基準にして
回転子鉄心を積層することを特徴とする電動機用
回転子。 A rotor groove provided on the outer periphery of the rotor core,
Equipped with an air hole provided inside this rotor groove,
In a motor rotor in which the rotor core is laminated with the air hole as a reference, the air hole changes shape depending on the relative positional relationship with the rotor groove facing in the radial direction, and the shape of the air hole changes depending on the relative positional relationship with the rotor groove facing in the radial direction. A rotor for an electric motor, characterized in that the air holes have the same shape, and the rotor core is laminated based on the air holes of the same shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17201583U JPS6079242U (en) | 1983-11-07 | 1983-11-07 | rotor for electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17201583U JPS6079242U (en) | 1983-11-07 | 1983-11-07 | rotor for electric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6079242U JPS6079242U (en) | 1985-06-01 |
| JPH0226196Y2 true JPH0226196Y2 (en) | 1990-07-17 |
Family
ID=30375076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17201583U Granted JPS6079242U (en) | 1983-11-07 | 1983-11-07 | rotor for electric motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079242U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4965321A (en) * | 1972-10-27 | 1974-06-25 | ||
| JPS529713B2 (en) * | 1971-10-12 | 1977-03-17 | ||
| JPS5353720A (en) * | 1976-10-27 | 1978-05-16 | Hitachi Ltd | Rotor of rotary electric machine |
| JPS5490504A (en) * | 1977-12-28 | 1979-07-18 | Toshiba Corp | Punching for layer-built core |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529713U (en) * | 1975-07-09 | 1977-01-24 | ||
| JPS5333801U (en) * | 1976-08-30 | 1978-03-24 | ||
| JPS54172214U (en) * | 1978-05-25 | 1979-12-05 |
-
1983
- 1983-11-07 JP JP17201583U patent/JPS6079242U/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529713B2 (en) * | 1971-10-12 | 1977-03-17 | ||
| JPS4965321A (en) * | 1972-10-27 | 1974-06-25 | ||
| JPS5353720A (en) * | 1976-10-27 | 1978-05-16 | Hitachi Ltd | Rotor of rotary electric machine |
| JPS5490504A (en) * | 1977-12-28 | 1979-07-18 | Toshiba Corp | Punching for layer-built core |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6079242U (en) | 1985-06-01 |
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