JPS5980125A - Compressor - Google Patents

Compressor

Info

Publication number
JPS5980125A
JPS5980125A JP18902782A JP18902782A JPS5980125A JP S5980125 A JPS5980125 A JP S5980125A JP 18902782 A JP18902782 A JP 18902782A JP 18902782 A JP18902782 A JP 18902782A JP S5980125 A JPS5980125 A JP S5980125A
Authority
JP
Japan
Prior art keywords
compressor
stator core
gas flow
coil
gas
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
Application number
JP18902782A
Other languages
Japanese (ja)
Inventor
Masaharu Senoo
正治 妹尾
Akira Saruta
彰 猿田
Takeyoshi Owada
大和田 武義
Kazuo Ikeda
和雄 池田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP18902782A priority Critical patent/JPS5980125A/en
Publication of JPS5980125A publication Critical patent/JPS5980125A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/20Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Compressor (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To increase the gas flowing area of cooling gas without varying the shrink fit contacting area of a compressor frame with a stator core by providing a gas flow hole for the cooling gas of the compressor passing a laminating direction on the stator core. CONSTITUTION:24 Slots 1-24 of two pairs are formed at an equal interval in a circumferential direction on a stator core 28 which is shrink fitted to a compressor frame at the non-cut circular-arc part, and a main coil 25 and an auxiliary coil 26 are contained across them. The coils 25, 26 which are crossed at the largest part are introduced into the slots existed at the position displaced from the linear center of the cut surface 28', and a gas flow hole 29 is formed on the back surface of the slots in the part, to which the coils 25, 26 which are crossed at the largest part are not introduced. Thus, since the cooling gas of the compressor is exhausted not only from the air gap between the cut surfaces 28', the air gap between the core 28 and a stator 30, but from an outlet through the hole 29 formed at the core 28, the power of the compressor can be increased.

Description

【発明の詳細な説明】 本発明は、ロータリ式圧縮機のように、固定子鉄心をフ
レームに焼ばめして組み立てた圧縮機に係り、圧縮機冷
媒ガスの流通量を増加させるに好適なものに関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compressor assembled by shrink-fitting a stator core to a frame, such as a rotary compressor, and is suitable for increasing the flow rate of compressor refrigerant gas. Regarding.

圧縮機の出力アップを図るには、出力に比例して冷媒ガ
スの流通量を増加させる必要がある。
In order to increase the output of the compressor, it is necessary to increase the flow rate of refrigerant gas in proportion to the output.

従来、冷媒ガスの流通量を増加させるため、(1)固定
子鉄心のカット面を大きくする、(2)固定子鉄心に切
込面を入れる、 (3)コイルを入れないスロットをつぐ9、これをガス
流通に用いる、 等の方式がある。
Conventionally, in order to increase the flow rate of refrigerant gas, the methods of (1) enlarging the cut surface of the stator core, (2) inserting a cut surface in the stator core, (3) plugging slots into which no coils are inserted9, There are methods such as using this for gas distribution.

しかしながら、前記(1)の方式は圧縮機フレームと固
定子鉄心との焼ばめ接触面積が減り、焼はめ強度が低下
する欠点φ2ある。また、前記(2)の方式のように、
固定子鉄心に切込面を入れた場合、固定子鉄心背部の磁
束のアンバランスにより、電動機特性の低下が大きくな
る欠点がある。そして、前記(3)の方式のように、コ
イルを入れないスロットを設けた場合、コイル必要巻数
を得るために、固定子鉄心を大きくしなければならない
欠点がある。
However, the method (1) has a drawback φ2 in that the shrink fit contact area between the compressor frame and the stator core is reduced, and the shrink fit strength is reduced. Also, like the method (2) above,
When a cut surface is formed in the stator core, there is a drawback that the motor characteristics are greatly deteriorated due to the unbalance of the magnetic flux at the back of the stator core. When a slot into which a coil is not inserted is provided as in the method (3) above, there is a drawback that the stator core must be made larger in order to obtain the required number of turns of the coil.

本発明の目的は、前記従来技術の欠点をなくし、圧縮機
フレームと固定子鉄心との焼ばめ接触面積を変えず、か
つ電動機特性を低下させることなく、冷媒ガスのガス流
通面積を大きくなし得る圧縮機を提供するにある。
An object of the present invention is to eliminate the drawbacks of the prior art and increase the gas flow area for refrigerant gas without changing the shrink fit contact area between the compressor frame and the stator core and without degrading the motor characteristics. We are here to provide you with the compressor you need.

本発明の特徴は、固定子鉄心に、積層方向に貫通する圧
縮機冷媒ガス用のガス流通孔を設けたところにあり、こ
の構成により前記目的を確実に達成することができたも
のである。
A feature of the present invention is that the stator core is provided with gas flow holes for compressor refrigerant gas that penetrate in the stacking direction, and with this configuration, the above object can be reliably achieved.

以下、本発明を図面に基づいて説明する。Hereinafter, the present invention will be explained based on the drawings.

第1図ないし第4図は、本発明の一実施例を示すもので
、固定子鉄心28、回転子30.圧縮機シャフト31、
圧縮機本体32、冷媒ガスの吸入口33および吐出口3
4、圧縮機フレーム35とを備えている。
1 to 4 show an embodiment of the present invention, including a stator core 28, a rotor 30, and a rotor 30. compressor shaft 31,
Compressor main body 32, refrigerant gas inlet 33 and outlet 3
4 and a compressor frame 35.

前記固定子鉄心28は、この実施例では外周面に略等間
隔をおいて直線状のカット面28′が形成され、かつ非
カット面である円弧状の部分を介して圧縮機フレーム3
5に焼ばめされている。また、固定子鉄心28には円周
方向に等間隔をおいて、この実施例では24個のスロッ
ト1〜24が設けられてbす、2個一対のスロットに跨
かつて主コイル25と補コイル26とが収納されており
、第4図に2極の単相誘導電動機としての主コイ1v2
5の跨がりを実線で示し、補コイル26の跨ぶりを破線
で示し、第3図中に主コイル25の磁束を符号27で示
す。そして、磁束27が最も集中する最も跨がりが大き
い主コイル25は、カット面28パの中心から外れた位
置のスロワ)1−12の組と、115−24の組に収納
されており、最も跨がりが大itいmコイル26は、カ
ット面28′の中心から外れた位置のスロワ)6−19
の組と、7−18の組に入れられている。
In this embodiment, the stator core 28 has linear cut surfaces 28' formed at approximately equal intervals on its outer peripheral surface, and is connected to the compressor frame 3 through the arcuate portions that are non-cut surfaces.
5 is shrink-fitted. The stator core 28 is provided with 24 slots 1 to 24 in this embodiment at equal intervals in the circumferential direction. 26 is housed, and Fig. 4 shows the main coil 1v2 as a two-pole single-phase induction motor.
The straddle of the main coil 25 is shown by a solid line, the straddle of the auxiliary coil 26 is shown by a broken line, and the magnetic flux of the main coil 25 is shown by the reference numeral 27 in FIG. The main coils 25 with the largest concentration of magnetic flux 27 and the largest straddling are housed in the throwers 1-12 and 115-24 located away from the center of the cut surface 28. The m coil 26 with a large straddle is located at a thrower (6-19) located off the center of the cut surface 28'.
and the 7-18 group.

前記回転子30は、圧縮機シャフト61に焼ばめされて
いる。また、圧縮機本体32は圧縮機フレーム65に溶
接されている。したがって、圧縮機および電動機は、圧
縮機フレーム35により完全に密閉されている。
The rotor 30 is shrink-fitted onto the compressor shaft 61. Further, the compressor main body 32 is welded to the compressor frame 65. The compressor and electric motor are therefore completely enclosed by the compressor frame 35.

本発明は、前述のごとき圧縮機において、固定子鉄心2
8に圧縮機冷媒ガス用のガス流通孔′29を設けたこと
を特徴としている。
The present invention provides a stator core 2 in a compressor as described above.
8 is characterized by providing gas flow holes '29 for compressor refrigerant gas.

そして、前記ガス流通孔29は磁束が最も集中する最も
跨がりが大きい主コイル25と補コイル26とを直線状
のカット面28′の中心から外れた位置のスロットに入
れた固定子鉄心にかいて、最も跨がりの大きい主コイル
25と補コイル26と廼z入っておらず、磁束27が緩
く、かつスロット背部から固定子鉄心外形線までの直線
距離が大きい非カット面である円弧状部て至る区域にお
ける固定子鉄心28の直径方向の2個所に、それぞれ2
個ずつ、固定子鉄心28の積層方向に貫通させて設けら
れている。
The gas flow holes 29 are formed in the stator core in which the main coil 25 and the auxiliary coil 26, which have the largest concentration of magnetic flux and the largest straddling, are inserted into slots located off the center of the linear cut surface 28'. The main coil 25 and the auxiliary coil 26, which have the largest straddle, are not in contact with each other, the magnetic flux 27 is loose, and the straight-line distance from the back of the slot to the stator core outline is large. At two locations in the diametrical direction of the stator core 28 in the area leading to the
They are provided to penetrate the stator core 28 one by one in the stacking direction.

前記実施例の圧縮機では、圧縮機冷媒ガスは吸入口33
より圧縮機本体32に入り、該圧縮機本体32で圧縮さ
れ、圧縮されたガスは圧縮機フレーム35と固定子鉄心
28に形成されたカット面28パ間の空隙、固定子鉄心
28と回転子30間の空隙のほかに、固定子鉄心28に
設けられたガス流通孔29を通って吐出口34に入り、
該吐出口34から吐出される。
In the compressor of the embodiment, the compressor refrigerant gas is supplied to the suction port 33.
The gas enters the compressor main body 32 and is compressed by the compressor main body 32, and the compressed gas flows through the gap between the compressor frame 35 and the cut surface 28 formed on the stator core 28, the stator core 28, and the rotor. In addition to the gaps between 30 and 30, gas enters the discharge port 34 through the gas distribution holes 29 provided in the stator core 28,
It is discharged from the discharge port 34.

ここで、圧縮機出力を上げる場合、圧縮機冷媒ガスの流
通量が増加するので、ガス流通面積を大きくする必要が
あるが、前述の実施例では固定子鉄心28の2個所にそ
れぞれ2個ずつ設けられたガス流通孔29によりガス流
通面積を大きくすることができる。
Here, when increasing the compressor output, the flow rate of the compressor refrigerant gas increases, so it is necessary to increase the gas flow area. The gas flow area can be increased by the gas flow holes 29 provided.

また、前記実施例では最も跨ナリが大きい主コイル25
と補コイル26をカット面28′の直線状の中心部から
外れだ位置に存するスロ・ソトに入れ、ガス流通孔29
を主コイル25と補コイル26の最も跨t:りが大きい
コイルが入っていない部分におけるスロットの背部に設
けているので、固定子鉄心背部の磁束のアンバランスに
よる電動機特性を低下させることなく、しかも固定子鉄
心28と圧縮機フレーム35との焼ばめ接触面積を変え
ることなく、ガス流通面積を増大させることが可能とな
る。
In addition, in the embodiment, the main coil 25 has the largest straddle.
Insert the auxiliary coil 26 into the slot located off the center of the straight line of the cut surface 28', and insert the gas flow hole 29.
is provided at the back of the slot in the part of the main coil 25 and the auxiliary coil 26 where the largest straddle coil is not inserted, so that the motor characteristics are not deteriorated due to unbalance of magnetic flux at the back of the stator core. Furthermore, it is possible to increase the gas flow area without changing the shrink fit contact area between the stator core 28 and the compressor frame 35.

なお1本発明は主コイル25と補コイル26の配置を入
れ替えたものにも適用できる。
Note that the present invention can also be applied to an arrangement in which the main coil 25 and the auxiliary coil 26 are interchanged.

また、本発明では圧縮機冷媒ガス用のガス流通孔29は
図示の4個に限らないこと勿論であり。
Further, in the present invention, the number of gas flow holes 29 for the compressor refrigerant gas is of course not limited to the four illustrated.

該ガス流通孔290個数を変えることにより、容易に圧
縮機出力変更に伴うガス流通量の増減に対応することが
できる。
By changing the number of the gas flow holes 290, it is possible to easily cope with an increase or decrease in the gas flow rate due to a change in compressor output.

本発明は、以上説明した構成1作用のもので、本発明に
よれば、固定子鉄心に、積層方向に貫通する圧縮機冷媒
ガス用のガス流通孔を設けたことにより、圧縮機フレー
ムと固定子鉄心との焼ばめ接触面積を父えず、かつ固定
子鉄心背部の磁束のアンバランスによる電動機特性の低
下を来たすことなく、圧縮機冷媒ガスのガス流通面積を
増大させ得る効果がある。
The present invention has the above-described configuration 1, and according to the present invention, the stator core is provided with gas flow holes for compressor refrigerant gas that penetrate in the stacking direction, thereby fixing the stator core to the compressor frame. This has the effect of increasing the gas flow area of the compressor refrigerant gas without reducing the shrink-fit contact area with the child core and without degrading the motor characteristics due to unbalanced magnetic flux at the back of the stator core.

【図面の簡単な説明】[Brief explanation of drawings]

第1図ないし第4図は、本発明の一実施例を示すもので
、第1図は圧縮機の縦断正面図、第2図は第1図の]−
11線断面図、第3図は圧縮機冷媒ガスのガス流通孔を
有する固定子鉄心の拡大平面図、第4図il−を固定子
鉄心のスロットに対する主コイルと補コイルの跨邊:り
を示す図である。 1〜24・・・スロゝソト、25・・・主コイル、26
・・・補コイル、27・・・主コイルの磁束、28・・
・固定子鉄心、28′・・・カット面、29・・・圧縮
機冷媒ガスのガス流通孔、30・・・回転子「31・・
・圧縮機シャフト、32・・・圧縮機本体、65・・・
圧縮機フレーム。 鼻4図
1 to 4 show an embodiment of the present invention, FIG. 1 is a longitudinal sectional front view of the compressor, and FIG. 2 is the same as that of FIG. 1.
11 is a sectional view taken along line 11, FIG. 3 is an enlarged plan view of the stator core having gas flow holes for compressor refrigerant gas, and FIG. FIG. 1 to 24...Slot soto, 25...Main coil, 26
...Auxiliary coil, 27...Main coil magnetic flux, 28...
・Stator core, 28'...Cut surface, 29...Gas circulation hole for compressor refrigerant gas, 30...Rotor "31...
・Compressor shaft, 32... Compressor body, 65...
compressor frame. Nose 4 diagram

Claims (1)

【特許請求の範囲】 1、 主コイルと補助コイルとを組み込んだ固定子鉄心
を、圧縮機フレーム内に固定すると共に前記固定子鉄心
に、積層方向に貫通する圧縮機冷媒ガスの流通孔、を設
けたことを特徴とする圧縮機。 2、前記固定子鉄心の外周には略等間隔をおいて直線状
の複数個のカット面ぶ形成され、前記ガス流通孔は主コ
イルと補コイルの最も跨がりが大キいコイルが入ってい
ない部分におけるスロットの背部に設けられていること
を特徴とする特許請求の範囲第1項記載の圧縮機。
[Claims] 1. A stator core incorporating a main coil and an auxiliary coil is fixed within a compressor frame, and a compressor refrigerant gas flow hole is provided in the stator core to penetrate in the stacking direction. A compressor characterized by the following: 2. A plurality of linear cut surfaces are formed on the outer periphery of the stator core at approximately equal intervals, and the gas flow hole contains the coil that spans the largest distance between the main coil and the auxiliary coil. The compressor according to claim 1, characterized in that the compressor is provided at the back of the slot in the part where the compressor is not provided.
JP18902782A 1982-10-29 1982-10-29 Compressor Pending JPS5980125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18902782A JPS5980125A (en) 1982-10-29 1982-10-29 Compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18902782A JPS5980125A (en) 1982-10-29 1982-10-29 Compressor

Publications (1)

Publication Number Publication Date
JPS5980125A true JPS5980125A (en) 1984-05-09

Family

ID=16234066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18902782A Pending JPS5980125A (en) 1982-10-29 1982-10-29 Compressor

Country Status (1)

Country Link
JP (1) JPS5980125A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280727A (en) * 1985-05-17 1986-12-11 Sanyo Electric Co Ltd Hermetic motor compressor
JPS62147924A (en) * 1985-12-20 1987-07-01 Hitachi Ltd Motor
JPH01159559U (en) * 1988-04-23 1989-11-06

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280727A (en) * 1985-05-17 1986-12-11 Sanyo Electric Co Ltd Hermetic motor compressor
JPS62147924A (en) * 1985-12-20 1987-07-01 Hitachi Ltd Motor
JPH01159559U (en) * 1988-04-23 1989-11-06

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